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ORDER NO, VSD9408M637
ervice Manual Panasonic SIVI-IS!
625
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Sec. T Operating Instructions Sec. 2 Disassembly Procedures
AG-MD830E
Video Cassette Recorder
Sec. 3 Mechanism Sec. 4 Electrical Adjustments Sec. 51 Block Diagrams Sec. 61 Schematic Diagrams Sec. 71 Circuit Board Diagrams
Sec.
si
Exploded Views & Replacement Parts Lists
SPECIFICATIONS
ITEM
Power Television Format
SPECIFICATION
AC 120V ~240V± 10%, 50-60Hz Source Consumption Approx. 35Watts CCIR Standard(625 lines, 50fields) PAL color signal
ITEM
Heads
SPECI FICATION
Normal Audio Control; 1 stationary head 2 ch Hi-Fi Audio; 2 rotary head Erase; 1 full track erase, 1 Audio track erase Normal audio; 2 track (stereo) Hi-Fi Audio; 2 channels (stereo) LINE (PHONO) x 2; -8dB,47kO unbalanced MIC (3.5mm PHONE); -50dBv, 4.7kO unbalanced LINE (PHONO) x 2; -8dB, 600 0 unbalanced HEADPHONES (PHONE) -60dBv to -20dBv, 80 unbalanced MONITOR( PHONO) - 8dBv ,6000 unbalanced Normal; 50Hz to 10kHz Hi-Fi; 20Hz to 20kHz Hi-Fi; more than 90 dB
Tape Speed 23.39mm/ s Tape Forma S-VHS, VHS FF/REW Approx. 2.5min. (with 180min. tape) Time Temperature 5'C-40'C (41'F to 104'F) Operating Audio Condition Humidity 35%-80% Weight 7.0kg 4 heads (NOR (49t.t m) x 2, SS (35t.t m) x 2) Heads 1 flying (rotary) erase head (97 t.t m) Luminance FM azimuth recording Color signal Converted subcarrier phase shift recording LINE (BNC); l.OVp-p, 750 unbalanced S-VIDEO (4P); Y: l.OVp-p, 750 unbalanced C: 0.3Vp-p (burst), 750 unbalanced LINE (BNC); l.OVp-p, 750 unbalanced S-VIDEO (4P); Y: 1.0Vp-p, 750 unbalanced C: 0.3Vp-p (burst), 750 unbalanced
Tracks Input
Output
Frequency Response Dynamic Range
Input Video Output
Signal-toNormal; better than 42dB Noise Ratio 10 - 5/8" (W) x 5 - 3/16" CH) x 14 - 3/8" CD) Dimensions 270 (W) x 13l.5 (H) x 365.5 CD) mm Standard Accessories Power Cable
Signal-toVHS; Color; 46dB B/W; 47dB Noise Ratio Horizontal Resolution S-VHS; 400 lines VHS; 240 lines
RS-232C Serial Interface .......................... ·AG-IA823 34-pin Interface ·······································AG-IA34 Optional Accessories Remote Controller .... · .............. · ................ AG-A600 Pause Remote Controller" .................. ·······VW-RM1 Weight and dimensions shown are approximate. Specifications are subject to change without notice.
Panasonic
INTRODUCTION
This Service Manual contains all the technical information which will allow service personnel to understand and service the Panasonic S-VHS video cassette recorder model AG-MD 83 DE. This model is developed for applications in industry and medical establishments and in addition, it has an optional accessory RS-232C Interface is a capable of satellite communication. By the use of S-VHS system, a sharp picture quality with high resolution is obtained, and advanced editing by easy operation is realized by the introduction of highly dependable mechanisms. Just slightly ahead of our time ... Panasonic
CONTENTS
SPECIFICATIONS ...................................................... ·····················Cover SAFETYPRECAUTIONS···································································· ·2 SERVICE INFORMATION ............................................................. ·····3 SECTION 1 OPERATING INSTRUCTIONS ··········································1-1 SECTION 2 DISASSEMBLY PROCEDURES ......................................... ·2-1 SECTION 3 MECHANISM ................................................................. ·3-1 SECTION 4 ELECTRICAL ADJUSTMENTS ··········································4-1 SECTION 5 BLOCK DIAGRAMS ...................................................... ···BLK-1 SECTION 6 SCHEMATIC DIAGRAMS ················································SCM-1 SECTION 7 CIRCUIT BOARD DIAGRAMS ......................................... ·CBA-1 SECTION 8 EXPLODED VIEWS & REPLACEMENT PARTS LISTS ············PRT-1
-1-
SAFETY PRECAUTIONS
GENERAL GUIDELINES
1. When servicing observe the original lead dress. If a short circuit isfound, replac all parts which have been overheated or damaged by the short circuit. 2 . After servici ng, see to it that a II the protectiv devices such as insulation barriers, insulation papers shields are properly installed. 3. After servicing make the following leakage current checks to prevent the customer from bei ng exposed to shock hazards.
ELECTROSTATICALLY SENSITIVE( ES) DEVICES
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage caused by static electricity. 1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device, which should be removed for potential shock reasons prior to applying power to the unit under test. 2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly. 3. Use only a grounded tip soldering iron to solder or unsolder ES devices. 4. Use only an anti-static solder removal device classified as "anti-static" can generate electrical charges sufficient to damage ES devices. 5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices. 6. Do not remove a replacement ES device from its protective package untilimmediately before you are ready to install it. (most replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive material). 7. Immediately before removing the protective material from the leads of replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed. CAUTION: Be sure no power is applied to the chassis or circuit, and observe all otner asfety precautions. 8. Minimize bodily motions when handling unpackaged replacement ES devoces. (Otherwise harm less mother such as the brushing together of your clothes fabric or the lifting of your foor from a carpeted floor can generate static electricity sufficient to damage an ES device).
LEAKAGE CURRENT COLD CHECK
1. Unplug the AC cord and connect a jumper between the two prongs onthe plug. 2. Measur the resistance value, with an ohm meter, between the jumpered AC plug and each exposed metallic cabinet part on the equipment such as screwhead connectors, contrl shafts, etc. When the exposed metallic part has a return path to the chassis, the reading shoulb be between 1 M Q and 5.2MQ. When the exposed metal dose not have a return path to the chassis, the read i ng m ust be 00 . AC VOLTMETER Hot-Check Circuit
0.15,u F
TO APPLIANCE'S EXPOSED METAL PARTS Figure 1
COLD WATER PIPE (EARTH GROUND)
LEAKAGE CURRENT HOT CHECK (See Figure 1)
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check. 2. Connect a 1.5KQ, 10W resistor, inparallel with 0.15,u F capacitor, between each exposed metallic part on the set an a good earth grou'nd such as a water pipe, as shown in Figure 1. 3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measur the potential across the resistor. 4. Check each exposed metallic part, and measure the voltage at each poi nt. 5. Reverse the AC plug in the AC outlet repeat each of the above measurements. 6. The potantial at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 equivalent) may be used to make the hot checks, leakage current must not exceed 1/2 milliamp. In case a measurement is outside of the limits specified, there is a possiblity of a shock hazard, and the equipment should be repa i red and rechecked before it is returned to the customer.
-2-
SERVICE INFORMATION
1. EXTENDERS
1. EXTENDER BOARD 50P (VFK0945) MJiWl FOR AUDIO (1 ), VIDEO (1 ), (2) and (3) P.C. BOARDs 2. EXTENDER CODE 8P (VFK0828) FOR POWER SUPPLY UNIT SAME AS AG-6730 etc.
EXTENDER BOARD 50P (VFK0945)
VI DEO (2) C. B.A. VIDEO (3) C.B.A.
-3-
2. CIRCUIT BOARD LAYOUT
POWER SUPPLY (1) C.BA REF. No. 1100 SERIES POWER SUPPLY (2) C.BA REF. No. 1000 SERIES
POWER SUPPLY (3) C.BA REF. No. 1000 SERIES
AUDIO (1) C.BA
VI DEO (1) C. BA REF. No. 8000 SERIES
~Jt---_ VIDEO (2) C.BA
HEAD AMP C.BA ~ REF. No. 5000 SERIES
,
· ./"1
REF. No. 8000 SERIES
I .......... :./1J.. ~ . . . ~ ~r'" I ...........
..
I
I
1""'--: V".....
,
·........ ; ... ',.... 1 I ....
I I
-..I............ -<
....
r:.....
I
I
........
..........
1 '1
"
I'
VIDEO (3) C.BA REF. No. 8000 SERIES REAR JACK C.BA REF. No. 6900 SERIES
.......
.........
I I
<; .....
.....J.......
.........~
l..
.....
... y
............ "'"-."," - ...
...
........
....
.........
I
..
J
I I
...
...
1'.....
·
I I
.........&.. ..
I ........
I
......
r
..
FRONT (1) ~ (4) C.BA REF. No. 6700 SERIES
L.............,
MOTHER C.BA REF. No. 900 SERIES
REEL DRIVE C.BA REF. No. 2700 SERIES
j
SERVO & SYSTEM CONTROL C.BA
SYSTEM CONTROL & SERVO C.B.A.
SYSTEM CONTROL SECTION: REF NO. 6000 SERIES SERVO SECTION: REF. No. 2000 SERIES CTL AMP SECTION: REF. No. 2300 SERIES REEL SERVO SECTION: REF. No. 2500 SERIES MOTER DRIVE SECTION: REF. No. 2300 SERIES DC-DC CONVERTOR SECTION: REF. No. 2900 SERIES
AUDIO (1) C.B.A.
NORMAL AUDIO SECTION: REF. No. 4000 SERIES Hi-Fi AUDIO SECTION: REF. No. 4000 SERIES
-4-
3. INITIALIZE (HOUR METER, MENU SETTINGS)
1. Turn off the Power. 2. Connect a jumper wire between TP8006 on the VIDEO (3) C.B.A. and TP1 on the VIDEO (1) C.B.A. 3. Set the MODE LOCK switch to ON.
ONn
OFFLJ WOOf lOCl
t
<<
HOUR METER RESET> > Turn on the Power while the PLAY, REC and PAUSE buttons are depressed.
PLAY
nEe PAUSE/STIlL
GJ [!][E]
PAGE
PAGE
OFF
lb:;~=~
POWER
ON
+
<<
MENU SETTINGS RESET> > Turn on the Power whi le the REW, STOP and FF buttons are depressed.
nEW
STOP FF
EJJ [!]EJJ
DATA DATA I· SHIFT V
OFF~~=~
-5-
4. DIMENSIONS
D
nn
I~
,-r-
131.5 (5-3/16" )
, ,
Cl Cl
j'fi ~ ~~
h p
@
~
~
~
,
.--...
,
,
<0
'"
(Y')
I
~
~
'-"
LO
cri
0
r--..
N
LO LO
(Y')
<0
~
'-"
LO
<0 N
.n
~IV
fr; ~
~
~
f
.--...
'-'-
\
{
\
SVIISI
It
11
""'@J
270 (10-5/8" )
UNIT: mm (inch)
-6-
OPERATING INSTRUCTIONS
CONTENTS
Caution for AC Mains Lead .......................................................................... 1-2 Features ....................................................................................................... 1-2 Controls ........................................................................................................ 1-3
Front Panel ................................................................................................................................ 1-3 Rear Panel ................................................................................................................................ 1-3
U)
o
IU :::J
z
U)
IZ
(!)
cc
« cc
o
0...
Z ~
w
Menu Screens .............................................................................................. 1-4
Menu Item Settings ................................................................................................................... 1-4
Counter Section ........................................................................................... 1-5
Memory Stop ............................................................................................................................. 1-5 Counter Reset ........................................................................................................................... 1-5 Remaining Tape ........................................................................................................................ 1-5 VISS Signal ............................................................................................................................... 1-6 Repeat Playback ....................................................................................................................... 1-6
Recording ..................................................................................................... 1-7
Preparations .............................................................................................................................. 1-7 Recording .................................................................................................................................. 1-7 Audio Monitoring ........................................................................................................................ 1-7
Playback ...................................................................................................... 1-7
Preparations .............................................................................................................................. 1-7 Playback .................................................................................................................................... 1-7 Rewinding and Fast Forwarding ................................................................................................ 1-8 Search/Jog Playback ................................................................................................................. 1-8 To Finish Playback .................................................................................................................... 1-8 Still Playback and Slow-Motion Playback .................................................................................. 1-8 Field-by-Field Playback ............................................................................................................. 1-8 Unrecorded Blank Search ......................................................................................................... 1-8
Audio Dubbing ............................................................................................. 1-8
1 -1
OPERATING INSTRUCTIONS
Features
Caution for AC Mains Lead
FOR YOUR SAFETY PLEASE READ THE FOLLOWING TEXT CAREFULLY. This product is equipped wijh 2 types of AC mains cable. One is for continental Europe, etc. and the other one is only for U.K.
Appropriate mains cable must be used in each local area, since the other type of mains cable is not suitable.
Rotary erase head The rotary erase head is featured to ensure cleaner edits during editing. Hi-Fi recording High picture quality Compactly designed for easy portability Illuminated operation buttons Repeat playback A particular section on the tape can be continuously played back repeatedly or played back once. Jog and shuttle functions The unit's jog and shuttle functions enable playback section to be located speedily using the search dial.
Audio dubbing Audio can be added to the normal audio track during post production editing. Switch settings on screen menus The unit's on-screen system enables switch settings to be viewed on Ihe TV screen. Auto head cleaning This facility automatically cleans the video heads to remove any dirt. Pause remote control supported Recording can be started and stopped by remote control using the VW-RM1 which is available as an optional accessory. RS-232C serial interface supported The unit can be remote-controlled from a personal computer by mounting the AG-IA823 interface which is available as an optional accessory. 34-pin remote control supported The unit can be operated from a distance of 5 meters or so using the AG·A600 (an optional acces· sory) by installing the AG·IA34 interface which is available as an optional accessory.
FOR CONTINENTAL EUROPE, ETC. Not to be used in the U.K.
FOR U.K. ONLY If the plug supplied is not suitable for your socket out/et, it should be cut off and appropriate one fitted.
FOR U.K. ONLY
This appliance is supplied with a moulded three pin
mains plug for your safety and convenience.
As the colours of the wires in the mains lead of this
appliance may not correspond with the coloured markings identifying the terminals in your plug, proceed as
A 13 amp fuse is fined in this plug. Should the fuse need to be replaced please ensure that the replacement fuse has a rating of 13 amps and that it is approved by ASTA or BSI to BS1362. Check for the ASTA mark ~ or the BSI mark ~ on the body of the fuse.
......
If the plug contains a removable fuse cover you must ensure that it is refitted when the fuse is replaced.
If you lose the fuse cover the plug must not be used until a replacement cover is obtained.
follows: · The wire which is coloured GREEN·AND-YELLOW must be connected to the terminal in the plug which is marked with the letter E or by the Earth symbol ~ or coloured GREEN or GREEN-AND·YELLOW. · The wire which is coloured BLUE must be connected to the terminal in the plug which is marked with the letter N or coloured BLACK.
· The wire which is coloured BROWN must be connected to the terminal in the plug which is marked with
Mode locking Even when an operation button has been pressed in error, the mode lock function prevents the unit from performing the operation corresponding to that button. Unrecorded blank search The unit detects unrecorded blanks which are 5. or more seconds in length. Automatic high-speed VISS search By writing the VISS (VHS Index Search System) signals at particular scenes to be viewed, the scenes can be easily located and played back automatically.
A replacement fuse cover can be purchased from your
local Panasonic Dealer.
the letter L or coloured RED. How to replace the fuse
IF THE FITTED MOULDED PLUG IS UNSUITABLE FOR THE SOCKET OUTLET IN YOUR HOME THEN THE FUSE SHOULD BE REMOVED AND THE PLUG CUT OFF AND DISPOSED OF SAFELY. THERE IS A DANGER OF SEVERE ELECTRICAL SHOCK IF THE CUT OFF PLUG IS INSERTED INTO ANY 13 AMP SOCKET.
If a new plug is to be fitted please observe the wiring code as shown below. If in any doubt please consult a qualified electrician.
1. Open the fuse compartment with a screwdriver.
2. Replace the fuse.
WARNING: THIS APPLIANCE MUST BE EARTHED. IMPORTANT: The wires in Ihis mains lead are coloured
in accordance with the following code:
Green·and·Yellow: Blue:
Earth Neutral
Live
Brown:
- E-2-
-E-5 -
Controls
Front Panel
Rear Panel
(5)
(4) (15)(20) (13)(14)
@
®
---f.lll-lf- (3)
(11 )--++--+--"'8:88:88. (10)
o
(1 )
(9) (8)
(7)
(6)
(2)
(12) (21 ) (18) (19)(17)(16) (22) (23)
~Nl0. I
Power switch t--2
-Name
---- --- -8
9
Page
No.
--_.- .. _------- ------
Name
_._._---------
Page E-14
Microphone jack (mini jack) Hi-Fi audio level control CH1/CH2
------------
No. 13 14 15 16 17
Name VIDEO input connector (BNC) S-VIDEO input connector (4P) AUDIO CHlICH2 input connectors (PHONO) VIDEO output connector (BNC) S-VIDEO output connector (4P) AUDIO CH1/CH2 output connectors (PHONO) AUDIO MONITOR output connector PAUSE REMOTE connector Blank panel or RS-232C/34-pin options Power socket
Page E-14 E-14 E-14 E-15 E-15 E-15
No.
Name Equipotential terminal
Page
V
Operation buttons STOP, PLAY, REC, REW, FF, PAUSE/STILL, AUDIO DUB, BLANK SEARCH Search dial Eject button/tape indicator Cassette holder Tracking buttons Headphones jack (mini jack)/ Headphone level control
~----------
--------
E·llE·17 E-16
10 11
E-14 - - - - - - - f----Counter setting buttons E'll Counter/audio level meter Setting switch section AUDIO OUT selector METER/AUDIO OUT switch (Hi·FilNORMAL) E·15 E'14 E·14 E·14 E·ll
When connecting this unit to any other component, make absolutely sure that it is properly grounded by connecting this
terminal.
-3 4 5 6
- -- - - - - - - 1----------
23
-
18 19 20 21 22
When connecting, use the terminal lug. and be sure to used wire with a crosssectional area of at least 1.0 mm z.
-
E·16 12
E-18 E-18
VIDEO INPUT selector (S·VIDEO/UNE) S·VHS REC MODE selector (AUTO/OFF)
cross-secti~
Area: More than 1.0mm 2
Terminal Lug
7
E·14
---
MENU screen selector (SET/OFF)
-
L____ ----'------------
----
- - "---
MODE LOCK switch (ON/OFF)
E·8 ----- .. _ - - - - - - - - - - 1-E-15
---
- E-6-
- E-?-
OPERATING INSTRUCTIONS
----
~-
-
OPERATING INSTRUCTIONS
1
Menu Screens
The menu settings can be performed while monitoring the TV screen or the level meter.
Menu Item Settings
Counter
indicator
No. (.)
Superimposed monitor VISS
Setting up your VTR for proper operation.
When you receive your VTR, it will be set up as follows: MENU A
COUNTER INDtCATOR 1001:00 1002:00 1003:01 1004:00 1005:01 1006:00 1007:01 VIDEO MONITOR VISS TAPE SELECT AUTO BACK TAPE IN MODE TAPE END MODE RECTAPE END STBY OFF TIME DEFAULTS OFF E180 ON STOP REW STOP 5MIN
Operation
Use the operation buttons and search dial as shown below.
Setting (underlin' ing denotes default setting) 00 : OFF 01 REC 02 : REC/PAUSE
Description of function VISS signal recording and counter memory operation OFF: The VISS signal is nol recorded (neilher is Ihe memory operation based on the VI SS signal performed). REC: The VISS signal is recorded by pressing the REC and PLAY buttons together during record·
ing.
1001
[0]
'EW
STOP
This moves the selection item cursor forward.
OO:OFF OO:OFF 01 :REC - 01 :REC 02:REC/PAUSE 02:REC 8. PAUSE
REC/PAUSE: The VISS signal is recorded when the recording or recording pause mode is released. "VISS' appears on the display tube when REC or RECIPAUSE is selected.
MENUB
COUNTER INDtCATOR 1008:01 1009:00 1010:00 1011:00 VIDEO MONITOR HI·FI REC AUDIO DUB EDIT NOTCH DEFAULTS ON CH1.CH2 OFF OFF
EJ)
DATA
This moves the selection item cursor backward.
1002
TAPE SELECT
00 : ··E1BO 01 : E240 ..
-EISa: E240-:
OO:OFF OO:OFF 01: REC - 01 :REC 02:REC/PAUSE 02:REC/PAUSE
This returns to the previous menu page.
When a tape with a length of IBa minutes or less is used. When a tape with a length of 240 minutes or more is used.
recording. (The tape is rewound for approximately one second when the REC Button is pressed in the PLAY/STILL mode or the PAUSE/STILL Button is pressed during recording. When the PAUSE/STILL Button is pressed again, the tape plays back for one second and then recording starts.) Normal REC/PAUSE operation
1003
AUTO BACK
PLAY
00 : OFF 01 . ON
Auto back space recording function setting ON: This ensures smooth continuity in
......
If optional AG-IAB23 serial interface board is installed: MENUC
COUNTER INDICATOR 3001:01 3002:00 3003:02 3004:03 VIDEO MONITOR BIT LENGTH STOP BIT PARITY BAUD RATE DEFAULTS 8 BIT STOP·l NONE 9600
G
m
.EC FF
This advances to the next menu page.
OFF:
1004
This moves the menu selection to the item below.
TAPE IN MODE
00 STOP 01 : REW
STOP: REW:
To reset any of these defaults: 1. Press the STOP Button to place the VTR into the stop mode. 2. Set the MENU Switch to the SET position (Switch is located under door on front panel). NOTE: When in the menu set position PLAY. REC. FAST FORWARD and REW will not function. 3. You can change these settings either by watching the counter indicator on the VTR or by watching the video monitor. . 4. To change the individual default settings use the PLAY or REC buttons to select the different menu pages, which will display the different settings. 5. To select the individual settings either use the FF button or the inside search dial control. A flashing bar will highlight your selection if you are viewing your video monitor. If you use the counter indicator to make these changes, the first four digits select the item you would like to change and the last two selects the default setting (on/off, etc.). The counter display codes are on page E-9. 6. To change the default setting use either the STOP or REW buttons. 7. After making the necessary changes, make sure to reset the MENU set switch to OFF.
B
The unit is placed in the stop mode after the tape has been loaded. The tape is rewound to its beginning, and then it stops. The tape stops when it comes to the end. The tape is rewound to its beginning, and then it stops. The tape stops when it comes to the end. The tape is ejected when it comes to the end.
1005 1006
1007
TAPE END MODE
SHIFTY
TAPE IN MODE TAPE END MODE
j
OO:STOP DO:STOP OO:STOP OO:STOP
00: STOP 01 : REW
STOP: REW:
REC TAPE END STBY OFF TIME
TAPE IN MODE TAPE END MODE
00 : STOP 01 : EJECT 00 : 0 MIN 01 : 5 MIN 02 : (30 MIN)
STOP: EJECT:
~ \Ul
o MIN:
This turns the inside search dial (jog function).
FF
Instead of using
IEl] ,
SHIFT V
this can be used
Standby release time With full loading STOP, the tape cylinder stops immediately. The tape cylinder stops after REC/PAUSE con· 5 MIN: tinued for 5 minutes or longer. 30 MIN: The tape cylinder stops after REC/PAUSE con· tinued for 30 minutes or longer. (Every 5 minutes, however, the tape is advanced in the forward direction by 3 frames.)
· This appears along with the figure representing the setting which is indicated on the counter section of the display tube.
to move the menu selection to the item above or below.
TAPE IN MODE TAPE END MODE
j
OO:STOP 00: STOP OO:STOP 00: STOP
- E-9-
1
TAPE IN MODE TAPE END MODE
- E-8-
Counter Section
Counter indicator No. Superimposed monitor HI-FI REC Setting (underlining denotes default setting) 00 : OFF 01 : ON 00 : CH1.CH2 01 CH1 02 : CH2 Description of function Hi-Fi audio recording (Cannot be used for audio DUB) OFF: Hi-Fi audio is not recorded. ON: Hi-Fi audio is recorded. Selection of channel track for audio dubbing CH1.CH2: The sound is added to CH1 and CH2 simultaneously. CH1: The sound is added to CH1. CH2: The sound is added to CH2.
MEt
, ., .,
"
RESET MEMO BEGIN END
Each time the MEMORY Button is pressed. the mode changes in the foHowing sequence:
1008
Memory stop
1009
AUDIO DUB
j
1·time memory repeat
DODO
j
Continuous repeat No indication (OFF)
00 : OFF (regular Editing/regular operation selection operation) OFF: Regular operation 01 : ON (editing/ ON: For editing or dubbing _________________ .... _______________________ d.ubbi.nJ!l_________________ . __ .... __________________________________ .
1010
EDIT See Note 1
I
·-VtSS"
This blinks while the VISS signal is being written on the tape. 11 lights when VISS is set on the menu.
1011
NOTCH See Note 2
00 : OFF 01 ON
For setting the NOTCH ON or OFF OFF: ?NoTCH OFF ON: NOTCH ON
00
The items shown below are displayed when the AG-IA823 serial interface board is used.
Counter Setting (underlinSuperimposed indicator Description of function Ing denotes demonitor No. fault setting) ... _---------------------_._-----------.----_ .... _-------------------------._ .. - _... _--------------------_.- .. _---_._-BIT LENGTH 00 : 7BIT Character length setting 3001 7BIT: 7 bits 01 : 8BIT 8BIT: 8 bits
Memory Stop
To use the AUTO MEMORY STOP function: 1. Press the MEMORY Button (MEMO) To turn on the MEMORY STOP function, the following syrnbol " - " will be indicated in Ihe counter display. 2. When the VTR is placed in record a VISS signal will be placed on the video tape. 3. Now when the video tape is rewound or fast forwarded it will stop at the slart of any recording. 4. This function can be turned off by pressing the MEMORY Button (MEMO). 5. Repeat playback is covered on page E-13.
Counter Reset
The counter display is reset to "0:00:00" when the RESET Button is pressed. The BGN/END setting is also set to "0:00:00".
RESET
(Jl
3002 3003
STOP BIT
00 STOP-1 01 : STOP-2 00 : ODD 01 EVEN 02 : NONE 00 01 02 03 : : : : 1200 2400 4800 9600
Stop bit setting STOP-1: 1 bit STOP-2: 2 bits Parity bit ODD: EVEN: NONE: setting Odd Even None
o
!...I· L.IL.I· L.I !...I.
rl·nrl·rlrl
PARITY
Remaining Tape
"TAPE REMAIN" provides a rough indication of the amount of tape remaining. The indication appears about 40 seconds after recording or playback has commenced (it does not appear until this time).
3004
BAUD RATE
Baud rate setting 1200: 1200 bps 2400: 2400 bps 4800: 4800 bps 9600: 9600 bps
MEMO
Notes:
1. Edit function:
2: NOTCH:
When this is set ON, the noise reduction circuit for the video signals is set OFF. (The video noise will increase
o
BE]
"EW
TAPE REMAIN
I-----IF
Tape end Tape beginning
!ilightly. For regular use, EDIT OFF recommended.)
When there is high level of noise in the luminance signals, it may also affect the chrominance signals. In a case like this, set the NOTCH to ON. Since the luminance signal band is reduced slightly when the filter is set to ON, the NOTCH OFF position is recommended for regular use.
Press this to turn on "MEMORY STOP:
Press either REW or FF.
Each lamp going off one after another indicates that the tape is approaching its end. Note: The remaining tape indicator provides only a rough indication: it is not meant to be precise.
The tape stops automatically at the VISS write point or BGN set point.
-E-10-
- E-11 -
OPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS
VISS Signal
VISS Setting
After VISS has been set on the menu screen, the VISS signal is automatically written on the tape when recording is started. It can also be written at the desired position on the tape by pressing the REC Button and PLAY Button
simultaneously during recording. · Locating particular scenes to be viewed becomes easy if VI SS signals are written with each recording. o "VISS" blinks on the counter section while the VISS signal is being written.
Repeat Playback
(1) Turn VISS function OFF: 1) Press the MEMORY (MEMO) Button and select continuous repeat playback (MEMORY REPEAT <:..:> ) or 1-time repeat playback (MEMORY 1 TIME REPEAT;;> ).
To be written
BEGIN/END settings (set VISS to OFF on the menu)
VISS signal writing rVISS
R
blinks
while the VISS signal is being writ-
ten)
REC/PLAV/ REC/PLAY
----~. ----------------_t~~-----+Time __
---+,
,
I
FF i
REW u STOP
Memory stop
(-)
.l.
MEMO
i, STOP
STOP REW
o
, ,
, ,
Press this and turn on
(t) Select at or 02 for VISS on the menu screen. at: REC 02: REC/PAUSE (2) Press the MEMORY Button to establish the memory mode. "VISS" now lights on the counter section. Memory mode MEMORY REPEAT MEMORY 1 TIME REPEAT MEMORY STOP Display
Function
···--------+~------~ ··
: , , STOP
" <:..:>
Memory stop
"or" ;;>."
r
END
REW
U
,
.~
· PLAY
REW
I
1-time
memory
(-)
REW
2) Press the BEGIN and END Buttons to set the tape beginning and ending positions for repeat playback. BEGIN
section
Repeat
, , , , ,
: STOP
repeat
( ;;»
i ,
~========:.~.=:.======:..-t~------~~~~ry
: PLAY
~
Tape
~
BEGIN point
.. 4
~ STOP
PLAY
·
repeat
0
Playback is repeated at the VISS write paint. Playback is repeated only once at the VISS
write pOint.
,
REW
, , , ,
I
:
(;;»
1-------3) Press the FF or REW Button.
~
END point
Continuous repeat
(<:..:»
Time
t
-
;J
~~--<.~---.------ --.... .~ :
:
I
PLAY
STOP
I
I STOP
:
:
I
Unrecorded blank search
(2) While "VISS" is on the display tube: The VISS signal is used for repeat playback. (Refer to the section on the VISS signal on page E-12.) When the beginning and ending positions are the same, the tape will be repeatedly played back between the beginning position and tape end. o When the ending position comes after the actual tape end, the tape will be repeatedly played back between the beginning position and tape end. o When the beginning position comes before the actual tape beginning, the tape will be repeatedly played back between the tape beginning and end position. o The precision of repeat playback may be impaired when a short section (less than 20 seconds or so long) of the tape is to be repeatedly played back.
o
(Leave an interval 01 al least 20 seconds between
BEGIN and END.)
The tape stops at the VISS write point.
Unrecorded
blank search
:
(3) Press the FF or REW Button. When the VISS signal is located, the unit automatically operates in accordance with the memory mode. Leave an interval of at least 30 seconds on the tape for writing the VISS signal. (The signal will not be detected' if the interval is less than 30 seconds long.)
· ~~-----~~,,
PLAY
(Leave an interval of at least 30 seconds between
REW u
, ,
Continuous repeat
(<:..:»
· Time
o
VISS signals.)
- E-12-
- E-13-
Recording
Playback
Microphone
(Sound from the microphone is recorded as Hi-Fi audio and normal audio on channel 1.) Note: When a microphone has been connected to the MIC jack and audio signals have been connected to the audio connectors for recording, recording from the microphone will take precedence.
[]lgjJ
11
[Q)
0000
o
GlGJIGl oBlGJBl
0
~
.\2)~ I§
Tracking control buttons
!l !l !l
0
,.."
!l !l
I~
0
--to-
Video signals (LINE) Video signals (S-VIDEO)
Audio signals Channel Hi-Fi
Normal
/
Audio input
UCH1 UCH1 & R/CH2 UCH1 "1 STEREO (UCH1 & RlCH2) UCH1 STEREO (UCH1 & R/CH2)
R/CH2=--C-~~------I-'cRl==CH2 "2=---~_+RI(;f:l2_ _ _~
The audio signals are recorded as indicated in the table on the left. *1: The UCHl audio signals are recorded on both channels 1 and 2. *2: The R/CH2 audio signals are recorded on both channels 1 and 2.
TV monitor
SWitches can be set even in the Mode Lock mode.
Preparations
· Load the cassette tape. (Check that the accidental erasure prevention tab on the tape is still intact.) · Check menu for correct set up. · Set the S-VHS REC MODE selector to the desired position. AUTO: At this position, the tape is automatically identified as a VHS or S-VHS tape and the signals are recorded in the corresponding
mode.
Recording
Recording starts when the REC and PLAY Buttons are pressed together or press REC button first and then PLAY. If PLAY button is pressed first. the continued portion is disturbed. The REC Button will not operate if the accidental
erasure prevention tab on the cassette tape has been
Preparations
· Set the following switches on the unit to OFF. Set the MODE LOCK Switch to OFF. Press the MEMORY Button to OFF. · Switch on the power of the units connected to the
unit.
Playback
Press the PLAY Button.
Since this unit is equipped with an automatic digital
·
Load the pre-recorded tape.
broken out. Use a tape with this tab still intact. Proceed as follows when using the PAUSE Button_ (1) While playing back the tape, find the location to be recorded_ Then press the PAUSE Button. The unit is now set to the playback pause mode. (2) Press the REC Button_ The REC Lamp now comes on, and the unit is set to the recording pause mode. (3) When the PAUSE Button is pressed again, the unit
is released from the pause mode, and recording
Audio Monitor Output Selector
Set the AUDIO OUT Selector to the corresponding to the type of sound desired. position
tracking function, there is normally no need to adjust the tracking. However, if noise appears on part of the playback picture as shown below, press the Tracking "+" or "-" Button on the front panel to obtain a normal picture. To return to the automatic tracking, press the Tracking "+" and "-" Buttons simultaneously_
The signals are recorded in the VHS mode regardless of the type of tape used. · Depending on the .connections, set the INPUT Selector to S-VIDEO or LINE. · When recording Hi-Fi audio, set On-Screen Hi-Fi REC (default setting) to ON.
OFF:
TRACKING
CH1§ MIX
0 Hi-fiO CH2 OORMD
LAUDlO OUT..J
DD
· Tracking adjustment may be necessary when playing back a tape which has been recorded on a VTR other
than th is unit.
+
Audio Level Adjustment (Hi-Fi audio only)
The audio level can be adjusted for Hi-Fi audio only. Turn the Hi-Fi Audio Level Control in such a way that the audio level meter indication is adjusted to around 3 (but not past the 3 level).
begins.
Audio Monitoring
The audio Signals are selected by the AUDIO OUT Selector. When using headphones, the volume can be adjusted using the Headphone Level Control. · To reduce the audio level, turn the control counterclockwise; to increase the audio level, turn it clockwise.
Mode Lock Switch
This switch makes it impossible to operate the switches on the front panel. When it is set to ON, none of the front panel switch can be operated. However, even with
- - -6
= = = =
6
3 0 -3
= =
-10
this switch at the ON position, the setting switches inside the cover, the remote controller available as an optional accessory or the RS-232C remote control signals can be used to operate the unit.
If this unit is brought too close to the TV monitor. interference from the monitor may affect the audio signals, resulting in noise. Be sure to keep the unit at
a distance (at least 20 cm or so) from the monitor.
· The audio level may change if high-impedance headphones are connected to the MIC jack.
- E-14-
- E-15-
OPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS
Audio Dubbing
Rewinding and Fast Forwarding
To rewind or fast forward the tape, press the REW Button or FF Button when the tape has stopped moving.
Still Playback and Slow-Motion Playback
The unit is placed in the still picture mode when the search dial is set to its centre click-stop position. · When noise appears during still playback, proceed with the stow tracking adjustment. TRACKtNG
"Audio dubbing" is a function which is used to record sound onto an already recorded tape. Sound can be recorded onto normal audio track CHI or CH2 or onto both the CHI and CH2 channels. (It cannot be recorded onto the Hi-Fi audio tracks.)
Search/Jog Playback
Search playback (outside ring)
The unit is placed in the search mode by turning the outside ring of the search dial. A tape can be played back up to t t times the normal speed. In the search mode, the FF Lamp (forward direction) or REW Lamp (reverse direction) blinks. · Set the search dial to its centre click-stop position for still playback. To release the search mode, press. the PLAY, STOP, STILL, FF or REW Button.
+
DD
Slow Tracking Adjustment
If noise should appear at the top or bottom of the picture during still playback or slow-motion playback (1/25 to 1/2x normal tape speed), press the Tracking
"+" or "-" Button to reduce the noise in the slow-motion
Tape recorder (only normal audio signals are recorded)
@
0
@
0000
0
re:: E
0
@
playback mode. · When still playback continues for more than 5 minutes, the unit will be placed automatically in the stop mode in order to protect the video heads. · No sound is heard during still playback. · During still playback a colour programme may appear in black or white or the playback image may darken: this is normal and not indicative of malfunctioning.
Jog playback (inside ring)
The unit is placed in the jog mode when the search dial is set to the search/pause (centre click-stop) position. When the inside ring is now turned. the tape speed can be varied from -1 x to +1 x the normal tape speed. Still playback is established when the inside ring is no longer turned.
It is not possible to record MIC input audio and audio input signals at the same time. The microphone takes precedence when connections are made to both to the MIC jack and audio connectors.
Microphone (only normal audio CH1 signals are recorded)
Field-by-Field Playback
Press the FF or REW Button during still playback. When the FF Button is pressed, the tape is fed by one field in the forward direction; when the REW Button is pressed, it is fed by one field in the reverse direction. When the FF or REW Button is kept depressed, the tape
is played back in the forward or reverse direction at
Preparations
· Load the pre-recorded cassette tape. (Check that the accidental erasure prevention tab on the tape is still intact. When it has been broken out, the AUDIO DUB Button will not function even if it is pressed.) USing AUDIO DUB on the menu screen, select the channels on which the sound is to be added (audio dubbing).
Operation
(1) Press the PLAY Button to start playback. (2) Press the PAUSE/STILL Button where the sound is to be added (audio dubbing) to place the unit in the
pause mode.
Outer Dial for search playback - - - - - - - . / Inside Dial for jog playback
approximately 1I25th of the normal speed. ·
·
A colour programme may appear in black and white during search or jog playback: this is normal and not indicative of malfunctioning. · The playback pictures may appear distorted during search or jog playback: this is normal and not indicative of malfunctioning. · No sound is heard during search or jog playback. Normal sound is heard at a tape speed of 1/2x or higher.
(3) Press the AUDIO DUB Button. (4) Audio dubbing starts when the PAUSE/STILL Button is
pressed to release the unit from the pause mode.
Unrecorded Blank Search
If a tape with unrecorded blanks lasting 5 or more seconds has been loaded, these blanks will be detected automatically. (1) Load the tape. (2) Press the BLANK SEARCH Button. The tape is searched automatically in the forward direction and is stopped automatically when an unrecorded blank lasting 5 or more seconds is detected.
(5) To stop the audio dubbing. press the STOP Button. · When audio dubbing is performed, the previously recorded sound will be erased and the new sound will be recorded in its place.
· Bear in mind that howling may occur jf audio
To Finish Playback
Press the STOP Button.
dubbing is performed with the unit placed near a TV set. · Audio dubbing cannot be performed when the tape's accidental erasure prevention tab has been broken out.
- E-16-
- E-17-
Remote Controllers
VW-RM1 pause remote controller (optional accessory)
When the VW-RM1 pause remote controller is connected to this unit, recording can be set to the pause mode from a distance instead of using the button on the unit itself.
Cautions for Use
AG-ASOO remote controller (optional accessory)
When the AG-IA34 34-pin interface board, available as an optional accessory, is mounted, the unit can be operated by remote control at a distance of about 5 meters instead of the unit's own operation buttons being operated. · The speed of the playback pictures can be varied up to about 11 times the normal speed in the forward or reverse direction.
· · 00 not insert fingers or any other objects into the video cassette holder. Avoid operating or leaving the unit near strong magnetic fields. Be especially careful of large audio speakers. Avoid operating or storing the unit in an excessively hot, cold, or damp environment as this may result in damage both to the unit and to the tape. Do not spray any cleaner or wax directly on the unit. If the unit is not going to be used for a length 01 time, turn the Power OFF and disconnect the power plug from the AC outlet. Do not leave a cassette in the unit when not in use. Do not block the ventilation slots on the sides of the unit. Use this unit horizontally and do not place anything on the top panel. Cassette tape can be used only for one-side, one direction recording. Two-way or two-track recordings cannot be made. Keep the VTR away from flower vases, tubs, sinks, etc. CAUTION: If liquids should be spilled into the VTR, serious damage could occur. If you spill any liquid into the VTR, remove power and consult qualified service personnel. Wipe the VTR with a clean, dry cloth. Never use cleaning fluids, chemicals or wax. Do not attempt to disassemble the unit. There are no user serviceable parts inside. If any liquid spills inside the unit, have the unit examined for possible damage. Refer any needed servicing to authorized service personnel.
Dew Indication
When dew is detected, the salety device of this unit will operate in order to protect the cassette tape and video heads. In case of dew detection, the " mark in the counter mark goes out with Power lights. Wait until the " switch turned ON to operate the VTR.
·
d"
d"
·
·
PAUSE REMOTE
®
rl
®
® I@"'@r
®@ @®@
Mounting the 34-pin interface board
First remove the board mounting plate where the interface board is to be mounted, mount the board, connect the connector and screw the mounting board into place.
· · · ·
. d
R
mark lights.
®
000
D
Note Dew condensation normally occurs gradually. Therefore, mark does not there may be cases in which the " start flashing until 10 or 15 minutes after dew has begun to condense. In particular, if the temperature or humidity in the room change, wait about 20 minutes before using the unit.
·
d"
· ·
·
AG-A600
Cause of Condensation
Condensation forms if warm air comes in contact with a cold object, for example on a window in a well-heated room in winter. It may form if the unit or the video cassette is exposed to sudden changes in temperature and humidity such as may occur when the unit or the video cassette is taken from a cold to a warm place. For instance: · In a room where the heater has just been turned on in winter; · In a room with steam or high humidity: · If the unit or the cassette is brought from cold surroundings into a well-heated room.
remote controller ·
<0
Computer Remote Control
Using the optional RS-232C serial interlace board (AG-IA823) and RS-232C cable, as shown in the figure below, a personal
computer can be used to operate the unit in various ways.
Cleaning care for video heads If the screen should appear as shown below, it means that the video heads are dirty. It is recommended that you clean the heads periodically. Use the optional cleaning tape and special purpose cleaning fluid to clean the heads. Consult with your dealer if the symptoms should persist even after cleaning.
Required optional
Serial Interlace board (AG-IA823)
Personal computer
RS-232C cable
L
0000
1[;
®®·o 18l~18l O@@ i§Joo
~.0BB~-~-
V
~
Notes: · We do not recommend that you attempt to clean the video heads yourself. · Repeated head cleaning will shorten the service life of the video heads. · Nothing can be recorded on the head cleaning tape. · If you use cleaning fluid, wipe the cleaned heads with a dry cloth before using the unit.
- E-18-
- E-19-
OPERATING INSTRUCTIONS
OPERATING INSTRUCTIONS
Troubleshooting
Check out the points in the table given below, and consult w~h your dealer if the trouble should persist.
Trouble No power No operation even when an operation button is pressed
Checkpoint/Remedial Action · Has the power cable been connected?
· Is the power switch in the ON position? · Has a cassette tape been loaded? · Is" d" displayed indicating condensation lighted? Keep the power supplied to the unit and wait until the" d " in display goes off. · Is the Mode Lock Switch at the OFF position? · Has the tape's accidental erasure prevention tab been
broken out?
ReI. Page
E-19 E-15
No recording
· Noise appears on playback pictures. No repeat playback ·
Has the INPUT Selector been set to the proper position? Press the Tracking Buttons and adjust.
E-14 E-15, E-16
E-11 E-11 E-9
· Has the MEMORY (MEMO) Button been set to the proper position? · Has the counter been reset? · Is the VISS setting on the menu screen at OFF? · Has an interval of at least 20 seconds been given between BEGIN and END? · Is the VISS setting on the menu screen at REC or REC/PAUSE? · Has an interval of at least 30 seconds been given between one VISS and another VISS signal?
E-13 E-9 E-12
No VISS signal writing
o
......
Error Display
The following error messages will be displayed on the tape counter if an abnormality occurs in the unit. In this case, follow instructions described below. · When an error code appears: · An error code appears on the display. · All operations are shut down when an error code appears on the display. · If the error is not released even after taking the remedial action described below, switch off the power, disconnect the power cable from the power outlet, and contact your dealer immediately.
List of error codes
·
Error Code
Malfunction
Malfunction in elevator section
Remedial action
E- C' :1 E- -, ,-, E- ,
!..
Malfunction in loading section Malfunction in cylinder section
Malfunction in reel section Incorrect tape tension
These errors may occur if the video cassette has not been loaded properly. Try switching the power off and turning it back on again. These errors may occur if there is something wrong with the state of the video cassette. Try switching the power off and turning it back on again and replacing the video cassette.
C
C --,
E-b E- -,,
Malfunction in solenoid
Try switching the power off and turning it back on again.
- E-20-
DISASSEMBLY PROCEDURES
...J
>w
CONTENTS
2-1. DISASSEMBLY FLOW CHART ..................................... ···· .. ··· .... ·2-2 2-2. DETAILED DISASSEMBLY METHOD ........................................ "2-2
2-2-1. Removal of the Top Panel .......................................................................................... 2-2 2-2-2. Removal of the Front Panel ...................... · .. · .......................... · .... · .. · .... · ............ ·· .... · .. 2-3 2-2-3. Removal of the Bottom Plate .................................................................................... 2-3 2-2-4. Removal of the Timer and Operation C.B.A ............................................................... ·2-3 2-2-5. Removel of the Cassette Compartment Unit .............................................................. ·2-3 2-2-6. Removal of the the Rear Panel ............ · .... ·.............. ·.................................................. ·2-4 2-2-7. Removal of the Rear Jack C.B.A ............................................................................... 2-4 2-2-8. Removal of the Power Unit ...................................................................................... ·2-4 2-2-9. Removal of the Audio C.B.A ............................... · .. · .. · .. · ...................... ·· ............ · .... · .. 2-5 2-2-10. Removal of the Video 1 C.B.A ................................................................................. ·2-5 2-2-11. Removal of the Video 2 C.B.A ................................................................................. ·2-5 2-2-12. Removal of the Video 3 C.B.A ................................................................................. ·2-5 2-2-13. Removal of the Mechanism Unit .............................................................................. 2-5 2-2-14. Removal of the System Control & Servo C.B.A ......................................................... ·2-6 2-2-15. Removal of the Reel Drive C.B.A. .......................................................................... ·2-6 2-2-16. Removal of the Mother C.B.A ................................................................................. ·2-6
!XI ~
Cl) Cl) Cl)
«
o
2-3. SCREWS ................................................................................ '2-7
2-1
2-1 DISASSEMBLY FLOW CHART
2-2-1
9
TOP PANEL
2-2-3
t
2-2-14
2-2-9
BOTTOM PLATE SYSCON & SERVO C.B.A. 2-2-15 REEL DRIVE C.B.A. 2-2-2 FRONT PANEL 2-2-5 2-2-16
I
I
AUDIO C.B.A.
I
> --I
ca
w
~
2-2-10
I
en en « en
Cl
I
VIDEO 1 C.B.A.
I
,
MOTHER C.B.A.
2-2-11
,
I
I
2-2-4
VIDEO 2 C.B.A.
I
CASSETTE COMPARTMENT
TIMER & OPERATION C.B.A. 2-2-12
I
I
2-2-13
VIDEO 3 C.B.A.
I
2-2-6 REAR PANEL 2-2-8
,
MECHANISM UNIT
1
2-2-7
POWER UNIT
REAR JACK C.B.A.
Figure D1. The above flowchart describes the order of steps for rmoving the cabinet parts and certain printed circuit boards in order to gain access to the unit, follow the steps in the reverse order.
2-2 DETAILED DISASSEMBLY METHOD
2-2-1. Removal of the Top Panel
1. Unscrew 2 screws (A) on the Top Panel. 2. Carefully lift the rear of the Top Panel and slide it as shown in the arrow (Figure D 2).
[Top View
1
Top Panel 2 Screws (A)
2-2
Figure D2
2-2-2 Removal of the Front Panel
1. Remove the Jog Dial on the Front Panel. 2. Unscrew the 2 screws ( B ) as shown in the Figure. 3. Unlock 2 locking portions ( F1 ), and carefully pull out the Front Panel from the deck (Figure D3. ). Front Panel 2 Screws (B) [Top View 1
2-2-4. Removal of the Timer and Operation C.B.A.
1. Disconnect the 2 Flexible Wires from the connector P6701 and P6702 on the Timer and Operation C.B.A .. 2. Unscrew the 2 screws (D) and a screw ( D-1 ) on the Timer and Operation C.B.A and unlock 5 locking portions (F2). 3. Carefully remove the Timer and Operation C.B.A. (Figure D5. ) 5 Locking Portions (F2) [ Front View] screw ( D-1 )
@
@
[ Bottom View 1
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ca
(/) (/) (/)
w
«
c
2 Locking Portions (F1)
01101101
P6702
Timer & Operation 2 Screws C.B.A. (D) Figure D5
P6701
2-2-5. Removal of the Cassette Compartment Unit
Firure D3 1. Unscrew 2 screws(E) and slide the Cassette Holder Until appearing 2 screws (F) and then unscrew 2 screws (F) (Figure D6. ). 2. Disconnect the Flexible Wire from connector P1508 mounted on the Front Loading C.B.A., then carefully pull out the Cassette Compartment Unit. [ Bottom View] Bottom Plate Cassette 2 Screws (E) Compartment [Top View]
2-2-3. Removal of the Bottom Plate
1. Unscrew 6 screws (C)on the Bottom Plate. 2. Lift off the Bottom Plate (Figure D4. ).
6 Screws (C) Figure D4
2 Screws (F)
P1508 Figure D6
2-3
2-2-6 Removal of the Rear Panel 1.Unscrew 4 screws (G) and a screw ( H ) on the Rear Panel. [Rear View Screw ( H ) Rear Panel
2-2-8 Removal of the Power Unit 1. Disconnect the 2 Flexible Wires from the connector P1001 and P1102 on the Power Unit.
1
2. Unscrew 2 screws ( K ) on the Power Unit Shield Case (Figure 09.). 3. Carefully lift out the Power Unit.
®~
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~
I~--~®
lo~ ~l
loo 01
[ Bottom View P1102
1
System Control & Servo C.BA
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5 Screws (G) Figure 07
2-2-7 Removal of the Rear Jack C,B,A, 1. Unscrew the 5 screws ( J ) and unscrew the 2 screws ( I ) as shown in Figure 08. [Rear View 5 Screws (J ) [Top View 1 2 Screws (K)
1
o
IIJJJJJJJJJJJ1JJ 0 JJJJJJJJJlllJJll
®
®I'---~
0
JJJJJJJJJJ
0
®
0
Figure D9
~---------------=
2 Screws ( I )
Figure 08
2-4
2-2-9 Removal of the Audio C.B.A.
1. Disconnect the 4 Flexible Wires from the connector P4001, P4002, P4003 and P4502 on the Audio C.B.A. (Figure 010.). 2. Carefully pull out the Audio C.B.A. (Figure 011.).
2-2-10 Removal of the Video 1 C.B.A.
1. Disconnect the Flexible Wires from the connector P3002 on the Video 1 C.B.A .. 2. Carefully pull out the Video 2 C.B.A. (Figure 012.).
Audio C.B.A. P4001
D
P4003 P4002 P4502 Figure 010 [Top View
D D
Video 1 C.B.A. Figure 012 P3002
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Cl
2-2-11 Removal of the Video 2 C.B.A.
1. Carefully pull out the Video 2 C.B.A. (Figure 011.).
2-2-12 Removal of the Video 3 C.B.A.
1
1. Carefully pull out the Video 3 C.B.A. (Figure 011.).
2-2-13 Removal of the Mechanism Unit
1. Unscrew a screw ( L ) on the Head Amp Shield Case and carefully remove the Head Amp C.B.A .. 2. Unscrew the 2 screws ( M ) on the Mechanism Unit and carefully remove the Mechanism Unit. (Figure 013-1 and 013-2.) [Top View]
Audio C.B.A. Video 1 C.B.A. Video 3 C.B.A.
Figure 011 Screw ( L ) Figure 013-1 Shield Case
2-5
[ Front View
1
2-2-15 Removal of the Reel Drive C.B.A. 1. Disconnect the 4 Flexible Wires from the P2701 , P2702,P2704 and P2705 on the Reel DriveC.B.A .. 2. Unlock the 3 clamps ( F3 ) on the Reel Drive C.B.A.. 3. Remove the Reel Drive C.B.A.. [ Bottom View 1 P2705 P2701 P2702
2 Screws (M)
@
...J aJ
@
>Figure D13-2 2-2-14 Removal of the System Control & Servo C.B.A. 1. Unscrew the 4 screws ( N ) on the System Control & Servo C.B.A. and carefully open the System Control
& Servo C.B.A. as shown in Figure D14.
o
::2: w en en « en
P2704
Locking Clamps ( F3 ) Figure D15
[ Bottom View
1
2-2-16 Removal of the Mother C.B.A. Note: Before removing the Mother C.B.A., be sure to remove the Power Unit, Rear Jack C.B.A., Video Video ( 1 ), (2) and (3) C.B.A., Audio C.B.A., and System control & servo C.B.A .. 1. Unscrews the 4 screws ( 0 ) on the Mather C.B.A .. 2. Carefully pull out the Mother C.B.A.. [ Bottom View
1
Mother C.B.A. 4 Screws ( 0 )
System Control B . & S ervo C. .A
4 Screws ( N )
Figure D16 Figure D14
2-6
2-3 SCREWS
A list of screws used in item 2-2.
(A) ( B)
(C)
(0)
( D-1)
VHD0222 (SILVER)
cr1
10mm
T~8mm
XTW3+10LR
T-=r
(G)
10mm
t~10mm
XTV3+10JFR (RED)
(H) (I)
t~10mm
XTV4+10JFR (RED)
(BLACK)
( F)
XTV3+10JFR (GOLD)
(E)
t~10mm
XTV4+10JFR (RED)
(J) (K)
t~10mm
XTV4+10JFR (RED)
( L)
t~10mm
XTV4+10JFR (RED)
(M)
cr~6mm
XYN26+6FE
cr~6mm
XYN26+6FE
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(BLACK)
(BLACK)
(N)
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t~10mm
XTV4+10JFR (RED)
(0)
t~10mm
XTV4+10JFR (RED)
T-=r
10mm
t~10mm
XTV4+10JFR (RED)
t~10mm
XTV4+10JFR (RED)
XTV3+10JFR (GOLD)
t~10mm
XTV4+10JFR (RED)
2-7
NOTE
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2-8
.MECHANISM
3-1
CONTENTS
3-1. Parts Locati on ........................................................................... 3-3 3-2. Servicing Fixtures and Tools························································ '3-4 3-3. How To Eject Manually··········· .. ················································· '3-5 3-4. Maintenance Procedures············· ................................................. '3-6
3-4-1. 3-4-2. 3-4-3. 3-4-4. 3-4-5. 3-4-6. Regular Maintenance ...................................................... ··········································3-6 Maintenance Chart ...................................................... ·············································3-6 Lubrication Procedures of the Capstan Shaft ...................................................... ·········3-7 Procedures for Cleaning of the Cylinder Unit ...................................................... ······3-7 Adjustments After Re-installing the Upper Cylinder, Lower Cylinder···························3-8 Adjustments After Re-installing the A/C Head Unit··················································'3-8
3-5. Mechanical Parts Replacement Procedures ...................................... '3-9
3-5-1. Replacement of the Upper Cylinder Unit ...................................................... ···············3-9 3-5-2. Replacement of the Lower Cylinder Unit·····································································3-10 3-5-3. Replacement of the A/C Head (1) Unit ...................................................... ···············3-10 3-5-4. Replacement of the Full Erase Head ...................................................... ·····················3-10 3-5-5. Replacement of the Capstan Rotor and Capstan Stator ················································3-11 3-5-6. Replacement of the Capstan Housing Unit ...................................................... ············3-11 3-5-7. Replacement of the Inclined Base (S), (T) ...................................................... ············3-12 3-5-8. Replacement of the P5 Post ...................................................... ················ .. ···············3-12 3-5-9. Replacement of the Reel Unit ...................................................... ······························3-13 3-5-10. Replacement of the Main Brake (S), (T) Unit····························································3-13 3-5-11. Replacement of the Pressure Roller Unit ...................................................... ············3-13 3-5-12. Replacement of the Mode Switch ...................................................... ························3-14 3-5-13. Replacement of the Pinch Solenoid ...................................................... ·····················3-14 3-5-14. Replacement of the Head Cleaning Pad ...................................................... ···············3-15
3-6. Mechanical Adjustment Procedures ............................................... '3-16
3-6-1. Flow Chart of Tape Interchangeability Adjustment .. ······· .. ········ .. ·································3-16 3-6-2. Coarse Adjustment of the Tape Guide Post Heights (P2 andP3) ·································3-17 3-6-3. Fine Adjustment of the Tape Guide Post Height (P2 and P3) (Linearity) ·····················3-18 3-6-4. Adjustment of the Pull-out Post (P5) Height ...................................................... ·········3-19 3-6-5. Adjustment of the A/C Head ...................................................... ······························3-20 3-6-6. Coarse Adjustment of the A/C Head Horizontal Position (X-Value) .. ·························3-22 3-6-7. Fine Adjustment of the A/C Head Horizontal Position (X-Value) ······························3-22 3-6-8. Adjustment of Inclined Base (T) ...................................................... ···························3-22 3-6-9. Adj ustment of Thrust Gap .............................................................. ····························3-23 3-6-10. Adjustment of FG Gap ...................................................... ·······································3-23 3-6-11. Measurement and Adj ustment of Back Tension ........................................................ '3-24 3-6-12. Height Adjustment of the Reel Tables .. ······························································ .. ······3-25 3-6-13. Measurement and Adjustment of the Brake Torque ···················································3-26 3-6-14. Pressing Force Confirmation of Pressure Roller Unit················································3-26 3-6-15. Adj ustment of Rev Tension Sensor Position ........................................................... ····3-27
3-7. Assembly and Adjustment Procedures of Mechanism······················ .. ·· '3-28
3-7-1. Confirmation of Alignment Condition ...................................................... ··················3-28 3-7-2. Assembly Procedures of Sub Cam Gear, Ring Gear and Oetent Arm ···························3-29 3-7-3. Assembly Procedures of Main Cam Gear and Pinch Speed Down Gear ························3-29 3-7-4. Assembly Procedures of Loading Cam Gear and Retainer Gear ·································3-29 3-7-5. Assembly Procedures of Center Gear ...................................................... ··················3-30 3-7-6. Assembly Procedures of Main Lever and Cam Follower Arm Unit ······························3-30 3-7-7. Assembly Procedures of Loading Gear (T), Loading Gear (S) Sector Gear ···············3-30 3-7-8. Assembly Procedures of Connection Gear ...................................................... ············3-31 3-7-9. Assembly Procedures of Mode Switch and P5 Pull Out Sector Gear······························3-31 3-7-10. Assembly Procedures of Pinch Cam and Pressure Roller Unit ·································3-31 3-7-11. Assembly Procedures of Gear Base Unit ...................................................... ············3-32 3-7-12. Re-installation of Cassette Compartment ...................................................... ············3-32
3-2
3-1. PARTS LOCATION
HEAD CLEANING UNIT A/C HEAD PINCH SOLENOID LOADING MOTOR
CAPSTAN FE HEAD PRESSURE ROLLER UNIT P5 POST TAPE GUIDE POST (P1) UPPER CYLINDER U LOWER CYLINDER U TAPE GUIDE POST (P2) INCLINED BASE (S)(2) PINCH SPEED DOWN GEAR l='=i.!::::;;:~=®=,====~~
.,..,.0;'"'-_ CONNECTION GEAR
SUB LOADING ARM TAPE GUIDE POST (P3) INCLINED BASE (T)(1) TAPE BEG/END SENSOR LED
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TENSION POST REC INHIBIT SWITCH
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TAKE-UP REEL TABLE
S-VHS CASSETTE DETECT SWITCH
SUPLLY REEL TABLE
MAIN BRAKE (T) UNIT
Figure Ml Top View
LOADING BELT GEAR BASE (1) U ROTOR U WORM WHEEL WORM GEAR ---H---l--U--.o.J: CENTER GEAR CLEANING ROD LOADING GEAR (T) LOADING GEAR (S)
SECTOR GEAR MAIN CAM GEAR REEL MOTOR U
LOADING CAM GEAR
Figure M2 Bottom View
3-3
3-2. SERVICING FIXTURES AND TOOLS
The specified servicing fixture must be used to conduct adjustment. The following fixtures, tools and measuring equipments are required to conduct complete Adjustments. VFM8180HADH; VHS Alignment Tape VFK1 012; Post Adjustment Plate
VFK0335 ; Retaining Ring Remover
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VFK0329 ; Post Adj. Screwdriver VFK0328 ; H-Position Adj. Screwdriver
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VFK0330; Fine Adj. Screwdriver (3mm)
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VFK0132; Back Tension Meter (Tentelometer, Made in U.S.A)
VFK0190; Reel Table Height Fixture
VFK0951; Centering Fixture
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VFK0134 ; Adaptor for VFK0133 VFK0326 ; Hex. Wrench Set (0.7,0.9,1.2,1.5,1.6,2,2.4,3 mm)
VFK0133; Dial Torque Gauge VFK0180 ; Plastic Clamper Only
0133
0180
VFK0236 ; Tension Post Adj. Plate
VFK0806; Tension Sensor Adj. Fixture
VFK27 ; Head Cleaning Stick
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VFK0269; L Type Screwdriver VFM0948 ; Check Light VFK66 ; Fan Type Tension Gauge
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VFK0680; S.C.R. Grease (White) (for plastic part)
M0R265 ; Morlytone Grease (Black) (for metal part)
VFK0131 ; High Quality Oil (for Capstan) Cleaning Liquid (Alchol) (Tape Tronsport Rubber Parts etc.)
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3-4
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PURCHASE LOCALLY»
3-3. HOW TO EJECT MANUALLY
If the electrical circuit is defective and the action of unloading and front unloading don't work properly, it is possible to eject manually as follows.
1. Take out the Main AC. 2. Release the direction as shown in Figure M3. 3. Release the Wormshaft to clockwise unit cassette is ejected.
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CAPSTAN ROTOE
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RELEASE DIRECTION
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Figure M3 How to Eject Manually
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3-5
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3-4. MAINTENANCE PROCEDURES
3-4-1. REGULAR MAINTENANCE
The purpose of periodic maintenance is to preserve the func