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Televisores a Color con Videograbadora
Especificaciones generales.
MV13K1
Instrucciones para el desensamble. Guía de abreviaturas. Lista de modos de servicio Revisiones preventivas e intervalos de servicio Notas para el reemplazo del IC de memoria Herramientas e implementos de servicio Preparación para el servicio Ajuste mecánico Ajuste eléctrico Diagrama a bloques del TV Placas de circuito impreso Diagramas esquemáticos Formas de onda Vistas explotadas mecánicas Lista de partes de reemplazo mecánico Lista de partes de reemplazo eléctrico
FILE NO. 140-200001
SERVICE MANUAL
COLOR TELEVISION/ VIDEO CASSETTE RECORDER
MV13K1
SERVICING NOTICES ON CHECKING
1. KEEP THE NOTICES
As for the places which need special attentions, they are indicated with the labels or seals on the cabinet, chassis and parts. Make sure to keep the indications and notices in the operation manual.
6. AVOID AN X-RAY
Safety is secured against an X-ray by considering about the cathode-ray tube and the high voltage peripheral circuit, etc. Therefore, when repairing the high voltage peripheral circuit, use the designated parts and make sure not modify the circuit. Repairing except indicates causes rising of high voltage, and it emits an X-ray from the cathoderay tube.
2. AVOID AN ELECTRIC SHOCK
There is a high voltage part inside. Avoid an electric shock while the electric current is flowing.
3. USE THE DESIGNATED PARTS
The parts in this equipment have the specific characters of incombustibility and withstand voltage for safety. Therefore, the part which is replaced should be used the part which has the same character. Especially as to the important parts for safety which is indicated in the circuit diagram or the table of parts as a mark, the designated parts must be used.
7. PERFORM A SAFETY CHECK AFTER SERVICING
Confirm that the screws, parts and wiring which were removed in order to service are put in the original positions, or whether there are the portions which are deteriorated around the serviced places serviced or not. Check the insulation between the antenna terminal or external metal and the AC cord plug blades. And be sure the safety of that.
(INSULATION CHECK PROCEDURE)
4. PUT PARTS AND WIRES IN THE ORIGINAL POSITION AFTER ASSEMBLING OR WIRING
There are parts which use the insulation material such as a tube or tape for safety, or which are assembled in the condition that these do not contact with the printed board. The inside wiring is designed not to get closer to the pyrogenic parts and high voltage parts. Therefore, put these parts in the original positions.
5. TAKE CARE TO DEAL WITH THE CATHODE-RAY TUBE
In the condition that an explosion-proof cathoderay tube is set in this equipment, safety is secured against implosion. However, when removing it or serving from backward, it is dangerous to give a shock. Take enough care to deal with it.
1. Unplug the plug from the AC outlet. 2. Remove the antenna terminal on TV and turn on the TV. 3. Insulation resistance between the cord plug terminals and the eternal exposure metal [Note 2] should be more than 1M ohm by using the 500V insulation resistance meter [Note 1]. 4. If the insulation resistance is less than 1M ohm, the inspection repair should be required.
[Note 1]
If you have not the 500V insulation resistance meter, use a Tester.
[Note 2]
External exposure metal: Antenna terminal Earphone jack
HOW TO ORDER PARTS
Please include the following informations when you order parts. (Particularly the VERSION LETTER.) 1. MODEL NUMBER and VERSION LETTER The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be found at the end of the SERIAL NUMBER. 2. PART NO. and DESCRIPTION You can find it in your SERVICE MANUAL.
GENERAL SPECIFICATIONS
G-1.Outline of the Product 13 inch( 335.4 mmV):Measured diagonally Color CRT 90 degree deflection 2 -Speed 1/2" Video Cassette Recorder VHS VHS-C G-2.VCR Format VHS Standard G-3.Video Recording System Luminance Component Chrominance Component G-4.Broadcasting System G-5.Color System G-6.NTSC Playback(PAL 60Hz) G-7.MESECAM NTSC PAL SECAM VHS Hi-Fi Audio System
Recorder/Player Player PAL-M PAL-N
:Rotary,slant azimuth two head helical scan system :FM recording :Low frequency converted direct recording US NTSC Yes Yes System PAL No No M SECAM or Monochrome signal Not Applicable Not Applicable
G-8.Cassette Tape VHS type video cassette tape Width 12.65mm (1/2 Inch) VHS-C type video cassette tape Width 12.65mm (1/2 Inch) G-9.Tape Speed NTSC or PAL-M SP 33.35 mm/sec LP 16.67 mm/sec SLP(EP) 11.12 mm/sec G-10.Recording/Playback Time NTSC or PAL-M at SP Mode Max. at LP Mode Max. at SLP(EP) Mode Max. PAL or SECAM at SP Mode Max. at LP Mode Max. G-11.Deck OVD-5 OVD-6 OVD-6S (with T-120 cassette) (with E-180 cassette) G-12.Rewind/Fast Forward Time(Approx.) FF:2'15" / Rew:1'48" G-13.Search Speed SP 3 and 5 Times LP Times SLP(EP) 9 and 15 Times G-14.Slow Speed SP LP SLP(EP) G-15.Frame Advance SP LP SLP(EP) 1/10 1/10 1/10 1/10 Times Times Times Times Times Times PAL or SECAM SP 23.39 mm/sec LP 11.69 mm/sec
210 min. (with T-210 cassette) 420 min. (with T-210 cassette) 630 min. (with T-210 cassette) 300 min. (with E-300 cassette) 600 min. (with E-300 cassette)
GENERAL SPECIFICATIONS
G-16.Antenna Input Impedance VHF/UHF 75 ohm unbalanced G-17.Tuner and Receiving channel Tuner : Contactless Electric tuner Oscar(W/O HYPER) Oscar(W/ HYPER) France CATV) Others channel coverage 2 ~ 69 , 4A , A-5 ~ A-1 , A ~ I , J ~ W , W+1 ~ W+84 Tuning System Frequency syn. Voltage syn. Others G-18.Preset Channel: G-19.Intermediate Frequency Picture(FP) Sound (FS) FP-FS G-20. Stereo/Dual TV Sound Yes( NICAM G-21.Video Signal Input Level Output Level S/N Ratio Horizontal Resolution G-22.Audio Signal Input Level Line RCA Output Level Line RCA -- channels 45.75 MHz 41.25 MHz 4.50 MHz GERMAN USA MHz MHz MHz JAPAN MHz MHz MHz JAPAN BS) No 1Tuner System 2Tuner System BS Tuner
1 Vp-p / 75 ohm 1 Vp-p / 75 ohm 50 dB (Weighted) at SP Mode 220 Lines
- 8 - 8
dB / dB / dB / dB /
- Kohm 50 Kohm - Kohm 1 Kohm 38 1.5 dB % (1KHz) Mode Mode Mode 100 100 Hz ~ Hz ~ Hz ~ 10 4 KHz KHz KHz
(0dB=0.775 V rms) S/N Ratio at SP Mode Harmonic Distortion : Frequency Response :
at SP at LP at SLP(EP)
Hi-Fi Model's Spes NONE Depth Multiplex Recording Rotary, Slant Azimuth Two Head System Helical Scan System Dynamic Range : More than -- dB Wow And Flutter : Less than --- % Wrms Channel Separation : More than -- dB Harmonic Distortion : Less than -- % G-23.Heads Video FM Audio Audio / Control Erase G-24.Motor: 4 Rotary Heads Track Width (SP : 1ch 49 µm, 2ch 58 µm, SLP : 1ch 21 µm, 2ch 21 µm) Rotary Heads Track Width(SP/LP/SLP : 1ch µm, 2ch µm) 1 Stationary Head ( Mono Stereo(L,R) ) 1 Full Track Erase
3 Motors Tape/Cassette Loading Cylinder (Direct Drive) Capstan (Direct Drive)
GENERAL SPECIFICATIONS
G-25.Power Source 120 V EXT DC Jack G-26.Power Consumption: Stand by: Per Year: G-27.Dimensions(Approx.) G-28.Weight(Approx.) G-29.Cabinet Material Cabinet Front: Cabinet Rear: Jack Panel: Net : Gross: AC 50Hz V 75 W at AC 120 - W at DC (at TV and VCR ON) 6 W at AC 120 --- kWh / Year 362 mm(W) 12.5 Kg ( 27.6 lbs) 14.5 Kg ( 32.0 lbs) PS ABS PS ABS PS ABS 94HB 94V2 94V0 94HB 94V2 94V0 94HB 94V2 94V0 DECABROM NON-DECA DECABROM NON-DECA DECABROM NON-DECA Top Loading System V V V 60 Hz(Approx.) 60 Hz(Approx.) 382 mm(H) AC 60Hz
369 mm(D)
G-30.Cassette Loading System: G-31.Tape Counter: G-32.Protector: G-33.Regulation Safety UL BS SEMKO NOM Radiation FCC SABA CNS X-Radiation DHHS G-34.Temperature Operation Storage G-35.Operating Humidity
Front Cassette Loading System
Linear Time Tape Counter Power Fuse Dew Sensor
CSA NF NZ AS3159 DOC SI CISPR13 HWC 5 ºC ~ -20 ºC ~
SAA NEMKO HOMOLO DENTORI FTZ NF DENTORI PTB 40 ºC 60 ºC 80
SI FEMKO SABS UNE PTT NZ AS/NZS DENTORI
CE DEMKO CNS GOST CE HOMOLO NONE NONE
SEV IEC65 SISIR NONE SEV UNE
Less than
%RH
G-36.Clockand Timer Calender : 1990/1/1 ~ 2081/12/31 Built-in 1 Month 8 Events Programmable Timer One Touch Recording : Max Time 5 Hours Sleep Timer Yes Max 120 Min.( 10 Min. Step) On/Off Timer Yes 1 Programs Wake Up Timer Yes Programs Auto Shut Off 15 Minutes
No No No
GENERAL SPECIFICATIONS
G-37.Timer back up Time More than 1/12 G-38.Terminals VHF/UHF Antenna Input Front Video Input Front Audio Input Rear Video Input Rear Audio Input Rear Video Output Rear Audio Output Ear Phone Jack(ø3.5) DC Jack 12V(Center +) Diversity G-39.Indicator Indicator Power (Red) Head Phone Jack(Stereo & Mono, ø3.5) AC Inlet Ext Speaker Ear Phone 21 Pin (x ) Rec/OTR (Red) T-Rec (Red) On Timer ) CS ) NONE Din Type F-Type France Type
Minutes (at Power Off Mode)
(
(
G-40.On Screen Display Menu Timer Rec Set Ch Set Up TV Set Up
TV/CATV Add/Delete V-Chip Set Picture Sap On/Off
Auto Ch Memory Guide Ch Set On/Off Timer Audio
Auto Repeat On/Off Clock Set( Calender Language Standard Time G-CODE(or SHOWVIEW or PLUSCODE)No. Entry Clock/Date CH/AV Tape Counter Tape Speed Sleep Time Tape In Control Level (Vol,Bright,Cont,Color,Tint,Sharpness) Control Level (Vol,Bright,Cont,Color,Sharpness) Play/Stop/FF/Rew/Rec/OTR/T-Rec/Pause/Eject(Symble Mak) Auto Tracking/Manual Tracking Caption/Text 1/2 Index Repeat Add/Delete Auto Wide On/Off Wide Select Picture Position Tone 1/2 Stereo Muting G-41.OSD Language Eng Ger Fre Fre Spa Spa Ita Ita Por Por Jan Jan Not Applicable System Set Up 12H 24H) Auto Clock On/Off Daylight Saving Time
OSD Language Setting Eng Ger
GENERAL SPECIFICATIONS
G-42.Speaker Position Size Imp. Output G-43.EXT Speaker Yes
Front Side 1.5 x 2.5 inches 8 ohm x 1 pcs Max 1.25 W 10% 1.0 W (Typical) W Imp ohm
Bottom
No
G-44.Carton Master Carton: Need No Need Content: ---- Set Material: ---- / ---Corrugated Carton Dimensions: ---- mm(W) ---- mm(D) ---- mm(H) Description of Origin Yes No Gift Box Material Double/Brown Corrugated Carton ( with Photo Label) Double/White Corrugated Carton ( with Photo Label) Double Full Color Carton W/Photo Dimensions: 447 mm(W) 423 mm(D) 443 mm(H) Design: As Per BUYER 's Description of Origin: Yes No Drop Test Natural Dropping At 1 Corner / 3 Edges / 6 Surfaces Height 25cm 31cm 46cm 62cm Container Stuffing: 700 Sets / 40' container
80cm
G-45.Accessories Channel Film Dew/AHC Caution Sheet Owner's Manual ( W/Guarantee Card) [English] Remote Control Unit AC Plug Adaptor Rod Antenna ( One Pole Two Pole/ F-Type DIN Type France Type) Loop Antenna( F-Type DIN Type France Type) U/V Mixer Quick Set-up Sheet DC Car Cord (Center+) Battery (UM- 4 x 2 ) Guarantee Card AC Cord Warning Sheet AV Cord (2Pin-1Pin) Circuit Diagram Registration Card Antenna Change Plug PTB Sheet Service Facility List 300 ohm to 75 ohm Antenna Adaptor Important Safeguard Euro Warranty Information Sheet ESP Card G-46.Other Features Auto Head Cleaning Auto Tracking Auto Clock VIDEO PLUS+(SHOWVIEW,G-CODE) HQ (VHS Standard High Quality) Auto Power On, Auto Play, Auto Rewind, Auto Eject Forward / Reverse Picture Search One Touch Playback Auto CH Memory Just Clock Function Closed Caption TV Auto Shutt off Function NTSC Playback PAL TV (PAL 60Hz) End Call V-chip( USA CANADA) SAP Index Search Auto Search CS Kantan Record Choke Coil BS SQPB CATV CM Skip(30sec x 6Times) Area Code Standby Power Save Energy Star Comb Filter TV Monitor Program Extend
GENERAL SPECIFICATIONS
G-47.Switch Front
Rear
Power Play Pause/Still System Select One Touch Playback Color On/Off (SECAM only) Main Power SW +0.45G 0.18G -0.15G 0.15G
Channel Up Channel Down F.FWD/Cue Eject/Stop Main Power SW Degauss
Volume Up Volume Down Rew/Rev Rec/OTR Input Select AC/DC
G-48.Magnetic Field BV : BH : BV : BH :
BV BH BV BH
: : : :
+0.35G 0.30G -0.25G 0.15G
BV BH BV BH
: : : :
+0.25G 0.30G -0.50G 0.30G
G-49.Remote Control Unit: Unit: RC-DA Format : NEC Custom Code : 40-BF/44-BB h Glow in Dark Remocon Yes Power Source: D.C 3 V Battery UM - 4 x 2 Total 42 Keys 0 Power 1 Rec/OTR 2 Play 3 F.Fwd 4 Rew 5 Pause/Still 6 Stop 7 Eject 8 Timer Rec 9 TV/Caption/Text Sleep Timer Index Quick View Zero Return TV Monitor Counter Reset Call CM Skip(Skip Search) Slow(for 4Head) Program(without V+) VCR PLUS+/Program(with V+)
No
Tracking Auto Tracking Up/Set + Tracking Down/Set Menu Enter Cancel Muting Volume Up Volume Down Ch Up Ch Down Input Select Speed Audio Select(for Hi-Fi)
DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF MECHANICAL PARTS AND P.C. BOARDS
1-1: BACK CABINET (Refer to Fig. 1-1) 1. Remove the 4 screws 1. 2. Remove the 2 screws 2 which are used for holding the Back Cabinet. 3. Remove the AC cord from the AC cord hook 3. 4. Remove the Back Cabinet in the direction of arrow.
Front Cabinet
1-3: TV/VCR BLOCK (Refer to Fig. 1-3) 1. Remove the 2 screws 1. 2. Disconnect the following connectors: (CP355, CP353, CP401, CP502 and CP351). 3. Unlock the support 2. 4. Remove the TV/VCR Block in the direction of arrow.
1
Front Cabinet
1
1 1
TV/VCR Block
2
UP TO RELEASE
1 2 2 1 3
Fig. 1-3 1-4: MAIN PCB (Refer to Fig. 1-4)
Back Cabinet
Fig. 1-1 1-2: CRT PCB (Refer to Fig. 1-2) CAUTION: BEFORE REMOVING THE ANODE CAP, DISCHARGE ELECTRICITY BECAUSE IT CONTAINS HIGH VOLTAGE. BEFORE ATTEMPTING TO REMOVE OR REPAIR ANY PCB, UNPLUG THE POWER CORD FROM THE AC SOURCE. 1. Remove the Anode Cap. (Refer to REMOVAL OF ANODE CAP) 2. Disconnect the following connectors: (CP801 and CP850). 3. Remove the CRT PCB in the direction of arrow.
1. Remove the screw 1. 2. Remove the Main PCB Holder. 3. Remove the 2 screws 2. 4. Remove the 3 screws 3. 5. Disconnect the following connectors: (CP810, CP820 and CP804). 6. Remove the Main PCB in the direction of arrow.
2 2
Main PCB
3
3
3
Main PCB Holder
1
Front Cabinet
CRT PCB
VCR Block
Fig. 1-4
Fig. 1-2
DISASSEMBLY INSTRUCTIONS
1-5: DECK SHIELD PLATE (Refer to Fig. 1-5) 1. Remove the 2 screws 1. 2. Remove the screw 2. 3. Remove the Deck Shield Plate in the direction of arrow.
2 1
Deck Shield Plate
1-7: JACK PLATE AND SYSCON PCB (Refer to Fig. 1-7) 1. Remove the screw 1. 2. Remove the Syscon PCB in the direction of arrow (A). 3. Remove the screw 2. 4. Remove the nut 3. 5. Remove the washer 4. 6. Unlock the 2 supports 5. 7. Remove the Jack Plate in the direction of arrow (B).
Jack Plate
1 5
Syscon PCB (B)
2 3 4 5
1
(A) VCR Block
Fig. 1-5 1-6: DECK CHASSIS (Refer to Fig. 1-6) 1. Remove the 3 screws 1. 2. Disconnect the following connectors: (CP1002, CP1005, CP1006, CP4001, CP4004 and CP4005). 3. Remove the Deck Chassis in the direction of arrow.
1 1 1
Deck Holder
Fig. 1-7
Deck Chassis
Syscon PCB
Fig. 1-6
DISASSEMBLY INSTRUCTIONS
2. REMOVAL OF DECK PARTS
2-1: TOP BRACKET (Refer to Fig. 2-1) 1. Remove the 2 screws 1. 2. Slide the 2 supports 2 and remove the Top Bracket. NOTE
Tape Guide L
NOTE When you install the Tape Guide L, install as shown in the circle of Fig. 2-3-B. (Refer to Fig. 2-3-B)
When you install the Top Bracket, install the screw (1) first, then install the screw (2).
REC Lever (2)
1
Top Bracket
(1)
1
Top Bracket · The REC Lever is not installed on the Video Cassette Player.
Fig. 2-3-B
2-4: CASSETTE HOLDER ASS'Y (Refer to Fig. 2-4)
2
Main Chassis Main Chassis · Screw Torque: 5 ± 0.5kgf·cm
2
1. Move the Cassette Holder Ass'y to the front side. 2. Push the Locker R to remove the Cassette Side R. 3. Remove the Cassette Side L. Fig. 2-1
Cassette Side R Main Chassis Locker R
2-2: FLAP LEVER/TAPE GUIDE R (Refer to Fig. 2-2) 1. Move the Cassette Holder Ass'y to the back side. 2. Remove the Polyslider Washer 1. 3. Remove the Flap Lever. 4. Unlock the 3 supports 2 and remove the Tape Guide R.
Tape Guide R Flap Lever Cassette Side L Main Chassis
Fig. 2-4 2-5: CASSETTE SIDE L/R (Refer to Fig. 2-5) 1. Remove the Locker Spring. 2. Unlock the 4 supports 1 and then remove the Cassette Side L/R. NOTE When you install the Cassette Side L/R, be sure to move the Locker L/R after installing.
1 1
Locker Spring
2
2 2 1
Main Chassis
Fig. 2-2
2-3: TAPE GUIDE L (Refer to Fig. 2-3-A) 1. Move the Cassette Holder Ass'y to the back side. 2. Unlock the 2 supports 1 and remove the Tape Guide L. 3. Remove the REC Lever. (Recorder only)
REC Lever Locker R
1
1
Tape Guide L Cassette Side R Locker L Cassette Side L
1
Fig. 2-5
1
Main Chassis · The REC Lever is not installed on the Video Cassette Player.
Fig. 2-3-A
DISASSEMBLY INSTRUCTIONS
2-6: LINK ASS'Y (Refer to Fig. 2-6) 1. Set the Link Ass'y to the Eject position. 2. Remove the (A) side of the Link Ass'y first, then remove the (B) side. 2-9: TENSION ASS'Y (Refer to Fig. 2-9-A) 1. Move the Inclined S Ass'y to the back side. 2. Unlock the support 1 and remove the S Reel Stopper. 3. Remove the Tension Spring. 4. Unlock the support 2 and remove the Tension Arm Ass'y. 5. Remove the Tension Adjust. 6. Unlock the 2 supports 3 and remove the Tension Band Ass'y. 7. Unlock the support 4 and remove the Tension Holder.
Tension Adjust (B) (A) Link Ass'y
Link Ass'y
3 3
Tension Band Ass'y
Main Chassis Main Chassis
Fig. 2-6
Tension Spring Tension Arm Ass'y
2-7: LOADING MOTOR ASS'Y (Refer to Fig. 2-7) 1. Remove the Link Lever. 2. Remove the Dumper Spring. 3. Remove the 2 screws 1. 4. Unlock the support 2 and remove the Loading Motor Ass'y. 5. Unlock the 2 supports 3 and remove the Deck PCB (BOT).
1
Loading Motor Ass'y S Reel Stopper
2 4 1
Tension Holder
Inclined S Ass'y
Fig. 2-9-A NOTE When you install the Tension Adjust, install as shown in Fig. 2-9-B. (Refer to Fig. 2-9-B)
Adjust the direction of the Marker to inside.
Dumper Spring
2
3
Main Chassis
1
Deck PCB (BOT) Link Lever
Fig. 2-9-B 2-10: T BRAKE ASS'Y (Refer to Fig. 2-10) 1. Remove the T Brake Spring. 2. Remove the T Brake Ass'y.
T Brake Ass'y
· Screw Torque: 5 ± 0.5kgf·cm
Fig. 2-7
2-8: SENSOR COVER L (Refer to Fig. 2-8) 1. Unlock the support 1 and remove the Sensor Cover L. 2. Unlock the 2 supports 2 and remove the Deck PCB (EOT).
T Brake Spring
Main Chassis
Sensor Cover L Deck PCB (EOT)
Fig. 2-10
1 2
2
Fig. 2-8
DISASSEMBLY INSTRUCTIONS
2-11: S REEL/T REEL ASS'Y (Refer to Fig. 2-11) 1. Remove the Idler Ass'y. 2. Remove the S Reel and T Reel Ass'y. 3. Remove the 2 Polyslider Washers 1. NOTE 1. Take care not to damage the gears of the S Reel, T Reel Ass'y and Idler Ass'y. 2. The Polyslider Washer may be remained on the back of the reel. 3. Take care not to damage the shaft. 4. Do not touch the section "A" of S Reel and T Reel Ass'y. (Use gloves.) (Refer to Fig. 2-11) Do not adhere the stains on it. 5. When you install the reel, clean the shaft and oil it. (If you do not oil, noise may be heard in FF/REW mode.) After installing the reel, adjust the height of the reel. 6. (Refer to MECHANICAL ADJUSTMENT) NOTE 1. Do not touch the Pinch Roller. (Use gloves.) 2. When you install the Pinch Roller Ass'y, install as shown in the circle. (Refer to Fig. 2-12-B)
Fig. 2-12-B 2-13: A/C HEAD (Refer to Fig. 2-13-A) 1. Remove the screw 1. 2. Remove the A/C Head Base. 3. Remove the 3 screws 2. 4. Remove the A/C Head and A/C Head Spring. NOTE 1. Do not touch the A/C Head. (Use gloves.) 2. When you install the A/C Head Spring, install as shown in Fig. 2-13-B. (Refer to Fig. 2-13-B) 3. When you install the A/C Head, tighten the screw (1) first, then tighten the screw (2), finally tighten the screw (3).
(1) (3)
S Reel Idler Ass'y
(A)
T Reel Ass'y
1
(A)
1
2
2
Fig. 2-11 2-12: PINCH ROLLER ASS'Y/P5 ARM ASS'Y (Refer to Fig. 2-12-A) 1. Remove the P5 Spring. 2. Remove the screw 1. 3. Unlock the 2 supports 2 and remove the Cassette Opener. 4. Remove the Pinch Roller Ass'y, P/R Arm Spring, Pinch Roller Lever and P5 Arm Ass'y.
1
P5 Spring
2
(2) A/C Head
A/C Head Spring
1
A/C Head Base
Fig. 2-13-A
2
Cassette Opener
2
P5 Arm Ass'y Pinch Roller Ass'y P/R Arm Spring Spring Position
Fig. 2-13-B
2-14: FE HEAD (RECORDER ONLY) (Refer to Fig. 2-14)
Pinch Roller Lever
1. Remove the screw 1. 2. Remove the FE Head.
1
FE Head
Main Chassis
· Screw Torque: 5 ± 0.5kgf·cm
Fig. 2-12-A
· The FE Head is not installed on the Video Cassette Player.
Fig. 2-14
DISASSEMBLY INSTRUCTIONS
2-15: AHC ASS'Y/CYLINDER UNIT ASS'Y (Refer to Fig. 2-15) 1. Unlock the support 1 and remove the AHC Ass'y. 2. Remove the 3 screws 2. 3. Remove the Cylinder Unit Ass'y. NOTE When you install the Cylinder Unit Ass'y, tighten the screws from (1) to (3) in order while pulling the Ass'y toward the left front direction.
2
(3) AHC Ass'y Pinch Roller Cam Link Lever Spacer E-Ring Main Cam
1
Middle Gear
2 3
Joint Gear P5 Cam
Fig. 2-17-A
Cylinder Unit Ass'y
2
(1)
1
NOTE When you install the Pinch Roller Cam, P5 Cam and Main Cam, align each marker. (Refer to Fig. 2-17-B)
Pinch Roller Cam
2
(2)
Check the hole of Main Chassis can be seen.
P5 Cam
· Screw Torque: 5 ± 0.5kgf·cm
Fig. 2-15
Marker Main Cam
2-16: CAPSTAN DD UNIT (Refer to Fig. 2-16) 1. Remove the Capstan Belt. 2. Remove the 3 screws 1. 3. Remove the Capstan DD Unit. Fig. 2-17-B
Capstan Belt Capstan DD Unit
2-18: CLUTCH ASS'Y (Refer to Fig. 2-18) 1. Remove the Polyslider Washer 1. 2. Remove the Clutch Ass'y, Ring Spring, Ring Clutch, Gear Clutch and Polyslider Washer 2. NOTE When you install the Clutch Ass'y, oil the shaft.
1 1
· Screw Torque: 5 ± 0.5kgf·cm
1
1
Fig. 2-16
Clutch Ass'y
2-17: MIDDLE GEAR/MAIN CAM (Refer to Fig. 2-17-A) 1. Remove the Polyslider Washer 1, then remove the Middle Gear. 2. Remove the E-Ring, then remove the Main Cam, Link Lever Spacer and P5 Cam. 3. Remove the Polyslider Washer 2, then remove the Pinch Roller Cam. 4. Remove the Polyslider Washer 3, then remove the Joint Gear.
Ring Spring Ring Clutch
Gear Clutch
2
App. 5mm
Fig. 2-18
DISASSEMBLY INSTRUCTIONS
2-19: LOADING GEAR S/T ASS'Y (Refer to Fig. 2-19-A) 1. Remove the E-Ring 1 and remove the Main Loading Gear. 2. Remove the Capstan Brake Spring. 3. Slide the Main Rod and remove the Capstan Brake Arm Ass'y. 4. Remove the Main Rod. 5. Remove the Tension Lever. 6. Unlock the 2 supports 2 and remove the Clutch Lever. 7. Remove the screw 3. 8. Remove the LED Reflecter. 9. Remove the Loading Arm S Ass'y and Loading Arm T Ass'y. 10. Remove the Loading Gear S and Loading Gear T. 11. Remove the Loading Gear Spring.
Capstan Brake Spring Capstan Brake Arm Ass'y S-S Brake Arm
2-20: INCLINED S/T ASS'Y (Refer to Fig. 2-20) 1. Unlock the support 1 and remove the P4 Cover. 2. Remove the S-S Brake Spring. 3. Unlock the support 2 and remove the Loading Gear Holder. 4. Remove the S-S Brake Arm. 5. Remove the Inclined S. 6. Remove the Inclined T. 7. Remove the 2 screws 3, then remove the Guide Roller. NOTE Do not touch the roller of Guide Roller.
Loading Gear Holder
2
Guide Roller S-S Brake Spring
1 3
Main Loading Gear Main Rod Inclined S Guide Roller
3
Tension Lever Clutch Lever Loading Gear T Inclined T
1
P4 Cover
2 2
LED Reflecter
3
Loading Gear Spring Loading Arm T Ass'y Loading Gear S Loading Gear Spring · Screw Torque: 0.7 ± 0.2kgf·cm
Fig. 2-20
Loading Arm S Ass'y
Fig. 2-19-A NOTE When you install the Loading Arm S Ass'y, Loading Arm T Ass'y and Main Loading Gear, align each marker. (Refer to Fig. 2-19-B)
Marker
Main Loading Gear
Marker
Loading Arm T Ass'y
Loading Arm S Ass'y
Fig. 2-19-B
DISASSEMBLY INSTRUCTIONS
3. REMOVAL OF ANODE CAP
Read the following NOTED items before starting work. * After turning the power off there might still be a potential voltage that is very dangerous. When removing the Anode Cap, make sure to discharge the Anode Cap's potential voltage. * Do not use pliers to loosen or tighten the Anode Cap terminal, this may cause the spring to be damaged. REMOVAL 1. Follow the steps as follows to discharge the Anode Cap. (Refer to Fig. 3-1.) Connect one end of an Alligator Clip to the metal part of a flat-blade screwdriver and the other end to ground. While holding the plastic part of the insulated Screwdriver, touch the support of the Anode with the tip of the Screwdriver. A cracking noise will be heard as the voltage is discharged. 3. After one side is removed, pull in the opposite direction to remove the other. NOTE Take care not to damage the Rubber Cap. INSTALLATION 1. Clean the spot where the cap was located with a small amount of alcohol. (Refer to Fig. 3-3.) NOTE Confirm that there is no dirt, dust, etc. at the spot where the cap was located.
Location of Anode Cap
GND on the CRT
Fig. 3-3 2. Arrange the wire of the Anode Cap and make sure the wire is not twisted. 3. Turn over the Rubber Cap. (Refer to Fig. 3-4.)
Screwdriver
CRT Support Alligator Clip
GND on the CRT
Fig. 3-1
Fig. 3-4 4. Insert one end of the Anode Support into the anode button, then the other as shown in Fig. 3-5.
2. Flip up the sides of the Rubber Cap in the direction of the arrow and remove one side of the support. (Refer to Fig. 3-2.) Rubber Cap
CRT Support Fig. 3-2
CRT
Support Fig. 3-5
5. Confirm that the Support is securely connected. 6. Put on the Rubber Cap without moving any parts.
KEY TO ABBREVIATIONS
A A/C ACC AE AFC AFT AFT DET AGC AMP ANT A.PB APC ASS'Y AT AUTO A/V B BGP BOT BPF BRAKE SOL BUFF B/W C C CASE CAP CARR CH CLK CLOCK (SY-SE) COMB CONV CPM CTL CYL CYL-M CYL SENS D DATA (SY-CE) dB DC DD Unit DEMOD DET DEV E E EF EMPH ENC ENV EOT EQ EXT F F FBC FE FF FG FL SW FM FSC FWD G GEN GND H H.P.F : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : Audio/Control Automatic Color Control Audio Erase Automatic Frequency Control Automatic Fine Tuning Automatic Fine Tuning Detect Automatic Gain Control Amplifier Antenna Audio Playback Automatic Phase Control Assembly All Time Automatic Audio/Video Burst Gate Pulse Beginning of Tape Bandpass Filter Brake Solenoid Buffer Black and White Capacitance, Collector Cassette Capstan Carrier Channel Clock Clock (Syscon to Servo) Combination, Comb Filter Converter Capstan Motor Control Cylinder Cylinder-Motor Cylinder-Sensor Data (Syscon to Servo) Decibel Direct Current Direct Drive Motor Unit Demodulator Detector Deviation Emitter Emitter Follower Emphasis Encoder Envelope End of Tape Equalizer External Fuse Feed Back Clamp Full Erase Fast Forward, Flipflop Frequency Generator Front Loading Switch Frequency Modulation Frequency Sub Carrier Forward Generator Ground High Pass Filter I H.SW Hz IC IF IND INV KIL L LED LIMIT AMP LM, LDM LP L.P.F LUMI. M MAX MINI MIX MM MOD MPX MS SW NC NR OSC OPE PB PB CTL PB-C PB-Y PCB P. CON PD PG P-P R REC REC-C REC-Y REEL BRK REEL S REF REG REW REV, RVS RF RMC RY S. CLK S. COM S. DATA SEG SEL SENS SER SI SIF SO SOL SP STB SW : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : Head Switch Hertz Integrated Circuit Intermediate Frequency Indicator Inverter Killer Left Light Emitting Diode Limiter Amplifier Loading Motor Long Play Low Pass Filter Luminance Motor Maximum Minimum Mixer, mixing Monostable Multivibrator Modulator, Modulation Multiplexer, Multiplex Mecha State Switch Non Connection Noise Reduction Oscillator Operation Playback Playback Control Playback-Chrominance Playback-Luminance Printed Circuit Board Power Control Phase Detector Pulse Generator Peak-to Peak Right Recording Recording-Chrominance Recording-Luminance Reel Brake Reel Sensor Reference Regulated, Regulator Rewind Reverse Radio Frequency Remote Control Relay Serial Clock Sensor Common Serial Data Segment Select, Selector Sensor Search Mode Serial Input Sound Intermediate Frequency Serial Output Solenoid Standard Play Serial Strobe Switch
K L
M
N O P
R
S
KEY TO ABBREVIATIONS
S SYNC SYNC SEP T TR TRAC TRICK PB TP U UNREG V V VCO VIF VP V.PB VR V.REC VSF VSR VSS V-SYNC VT X X'TAL Y Y/C : : : : : : : : : : : : : : : : : : : : : Synchronization Sync Separator, Separation Transistor Tracking Trick Playback Test Point Unregulated Volt Voltage Controlled Oscillator Video Intermediate Frequency Vertical Pulse, Voltage Display Video Playback Variable Resistor Video Recording Visual Search Fast Forward Visual Search Rewind Voltage Super Source Vertical-Synchronization Voltage Tuning Crystal Luminance/Chrominance
SERVICE MODE LIST
This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter SERVICE MODE, unplug AC cord till lost actual clock time. Then press and hold Vol (-) button of main unit and remocon key simultaneously. The both pressing of set key and remote control key will not be possible if clock has been set. To reset clock, either unplug AC cord and allow at least 5 seconds before Power On. Set Key VOL. (-) MIN Remocon Key 0 Releasing of V-CHIP PASSWORD. Initialization of the factory. NOTE: Do not use this for the normal servicing. Horizontal position adjustment of OSD. NOTE: Also can be adjusted by using the Adjustment MENU. Refer to the "ELECTRICAL ADJUSTMENT" (OSD HORIZONTAL). Adjust the PG SHIFTER automatically. Refer to the "ELECTRICAL ADJUSTMENT" (PG SHIFTER). Adjust the PG SHIFTER manually. Refer to the "ELECTRICAL ADJUSTMENT" (PG SHIFTER). Adjusting of the Tracking to the center position. NOTE: Also can be adjusted by pressing the ATR button for more than 2 seconds during PLAY. POWER ON total hours and PLAY/REC total hours are displayed on the screen. Refer to the "PREVENTIVE CHECKS AND SERVICE INTERVALS" (CONFIRMATION OF USING HOURS). Can be checked of the INITIAL DATA of MEMORY IC. Refer to the "NOTE FOR THE REPLACING OF MEMORY IC". VOL. (-) MIN 8 Writing of EEPROM initial data. NOTE: Do not use this for the normal servicing. Display of the Adjustment MENU on the screen. Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment). Operations
VOL. (-) MIN
1
VOL. (-) MIN
2
VOL. (-) MIN
3
VOL. (-) MIN
4
VOL. (-) MIN
5
VOL. (-) MIN
6
VOL. (-) MIN
9
Method Press the ATR button on the remote control for more than 2 seconds during PLAY. Make the short circuit between the test point of SERVICE and the GND.
Operations Adjusting of the Tracking to the center position. Refer to the "MECHANICAL ADJUSTMENT" (GUIDE ROLLER) and "ELECTRICAL ADJUSTMENT" (PG SHIFTER). The EOT/BOT/Reel sensor do not work at this moment. Refer to the "PREPARATION FOR SERVICING"
PREVENTIVE CHECKS AND SERVICE INTERVALS
The following standard table depends on environmental conditions and usage. Unless maintenance is properly carried out, the following service intervals may be quite shortened as harmful effects may be had on other parts. Also, long term storage or misuse may cause transformation and aging of rubber parts. Time Parts Name Audio Control Head Full Erase Head (Recorder only) Capstan Belt Pinch Roller Capstan DD Unit Loading Motor Tension Band Capstan Shaft Tape Running Guide Post Cylinder Unit : Clean : Replace Replace when rolling becomes abnormal. Clean the Head Clean those parts in contact with the tape.
Clean the rubber, and parts which the rubber touches.
500 hours
1,000 hours
1,500 hours
2,000 hours
3,000 hours
Notes
CONFIRMATION OF USING HOURS
POWER ON total hours and PLAY/REC total hours can be checked on the screen. Total hours are displayed in 16 system of notation. NOTE: The confirmation of using hours will not be possible if clock has been set. To reset clock, either unplug AC cord and allow at least 5 seconds before Power On. 1. Set the VOLUME to minimum. 2. While holding down VOLUME button on front cabinet, press key 6 on remote control simultaneously. 3. After the confirmation of using hours, turn off the power.
INIT
00
83
Initial setting content of MEMORY IC. POWER ON total hours. PLAY/REC total hours.
POWER ON 0010 PLAY/REC 0003
(16 x 16 x 16 x thousands digit value) + (16 x 16 x hundreds digit value) + (16 x tens digit value) + (ones digit value)
PREVENTIVE CHECKS AND SERVICE INTERVALS
CLEANING
NOTE After cleaning the heads with isopropyl alcohol, do not run a tape until the heads dry completely. If the heads are not completely dry and alcohol gets on the tape, damage may occur. 1. AUDIO CONTROL HEAD Wrap a piece of chamois around your finger. Dip it in isopropyl alcohol and clean the audio control head by wiping it horizontally. Clean the full erase head in the same manner. (Refer to the figure below.) 2. TAPE RUNNING SYSTEM When cleaning the tape transport system, use the gauze moistened with isopropyl alcohol. 3. CYLINDER Wrap a piece of chamois around your finger. Dip it in isopropyl alcohol. Hold it to the cylinder head softly. Turn the cylinder head counterclockwise to clean it (in the direction of the arrow). (Refer to the figure below.) NOTE Do not exert force against the cylinder head. Do not move the chamois upward or downward on the head. Use the chamois one by one.
Audio Control Head
Cylinder Head
NOTE FOR THE REPLACING OF MEMORY IC
If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE 1. NOTE: Initial Data setting will not be possible if clock has been set. To reset clock, either unplug AC cord and allow at least 5 seconds before Power On.
ADDRESS 00 01 02 03 04 05 06 07 08 09 DATA 81 6D 07 00 00 00 C4 8B 11 16 ADDRESS 0A 0B 0C 0D 0E 0F 10 11 12 13 DATA 2B 24 0A 08 05 07 6C 2B 21 15 ADDRESS 14 15 16 17 18 19 1A 1B 1C 1D DATA 00 A0 61 54 B9 0F 08 82 6A FA ADDRESS 1E 1F 20 21 22 23 24 25 26 27 DATA 43 05 0D 0A 32 00 39 00 00 35 ADDRESS 28 29 DATA 00 02
Table 1 1. Enter DATA SET mode by setting VOLUME to minimum. 2. While holding down VOLUME button on front cabinet, press key 6 on remote control simultaneously. 3. ADDRESS and DATA should appear as FIG 1.
ADDRESS DATA
INIT
00
83
POWER ON 0010 PLAY/REC 0003
Fig. 1 4. ADDRESS is now selected and should "blink". Using the SET + or - keys on the remote, step through the ADDRESS until required ADDRESS to be changed is reached. 5. Press ENTER to select DATA. When DATA is selected, it will "blink". 6. Again, step through the DATA using SET + or - until required DATA value has been selected. 7. Pressing ENTER will take you back to ADDRESS for further selection if necessary. 8. Repeat steps 4 to 7 until all data has been checked. 9. When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input. The unit will now have the correct DATA for the new MEMORY IC.
SERVICING FIXTURES AND TOOLS
Alignment Tape Back tension cassette gauge Torque cassette gauge (KT-300NR) Taper nut driver
ST-N5 ST-NF VTR cleaning kit
70909103 VTR lubrication kit
70909199 Grease
70909228 JG002B Adapter JG002E Dial Torque Gauge (10~90gf·cm) JG002F (60~600gf·cm)
JG022 Master Plane
JG024A Reel Disk Height Adjustment Jig
JG153 X Value Adjustment Screwdriver
JG154 Cable
JG162C Cable (10 Pins) JG162D Cable (11 Pins) JG162Y Cable (5 Pins)
Tentelometer
Part No. JG002B JG002E JG002F JG153 JG022/JG024A JG154 JG162C/JG162D JG162Y Brake Torque (T Reel Ass'y) VSR Torque, Brake Torque (S Reel) X Value Adjustment Reel Disk Height Adjustment
Remarks VSR Torque, Brake Torque (S Reel/T Reel Ass'y)
Used to connect the test point of SERVICE and GROUND Used to connect the Syscon PCB and Main PCB Used to connect the Syscon PCB and CRT PCB
PREPARATION FOR SERVICING
How to use the Servicing Fixture 1. Unplug the connector CP351, CP355, CP502 and CP353, then remove the TV/VCR Block from the set. 2. Unplug the connector CP810, CP820 and CP850, then remove the Main PCB from the VCR Block. 3. Connect as shown in the below figure using the Service Fixture. · Connect the Syscon PCB to the Main PCB with the cable JG162C and JG162D. · Connect the Syscon PCB to the CRT PCB with the cable JG162Y. 4. Remove the Jack/LED PCB from the set, then connect it with the Syscon PCB. If necessary, connect CP351 (Front A/V Jack Input Terminal) 5. Short circuit between TP1001 and Ground with the cable JG154. (Refer to MAJOR COMPONENTS LOCATION GUIDE) The EOT, BOT and Reel Sensor do not work at this moment. 6. At that time, the STOP/EJECT button is available to insert and eject the Cassette Tape.
Front Cabinet CRT PCB CP850 CP804
CP820
Main PCB JG162Y
CP810 JG162D
CD850 JG162C CD820 Syscon PCB CD810 CD604 CP355 TP1001
JG154 To Ground
CD352 CD351 Jack/LED PCB
MECHANICAL ADJUSTMENTS
1. CONFIRMATION AND ADJUSTMENT
Read the following NOTES before starting work. · Place an object which weighs between 450g~500g on the Cassette Tape to keep it steady when you want to make the tape run without the Cassette Holder. (Do not place an object which weighs over 500g.) · When you activate the deck without the Cassette Holder, short circuit between TP1001 and GND. (Refer to ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE) In this condition the BOT/EOT/Reel Sensor will not function. 1-1: CONFIRMATION AND ADJUSTMENT OF REEL DISK HEIGHT 1. Turn on the power and set to the STOP mode. 2. Set the master plane (JG022) and reel disk height adjustment jig (JG024A) on the mechanism framework, taking care not to scratch the drum, as shown in Fig. 11-A. 3. Confirm that "A" of the reel disk is lower than "B" of the reel disk height adjustment jig (JG024A) , and is higher than "C". If it is not enough height, adjust to 10(+0.2, -0) mm with the height adjustment washer. 4. Adjust the other reel in the same way.
Master Plane (JG022)
1-2: CONFIRMATION AND ADJUSTMENT OF TENSION POST POSITION 1. Set to the PLAY mode. 2. Adjust the Tension Adjust until the edge of the Tension Arm is positioning within 0.5mm range from the standard line center of Main Chassis. After this adjustment, confirm that the cut position is located in "A" area as shown in Fig. 1-2-B. If it is located in "B" area, adjust again. 3. While turning the S Reel clockwise, confirm that the edge of the Tension Arm is located in the position described above.
Standard line of Main Chassis
Tension Arm 0.5mm (Adjusting range) Standard line center of Main Chassis Tension Adjust
Fig. 1-2-A
(A) Reel Disk Height Adjustment Jig (JG024A) Cut Position
(B) Tension Adjust
Fig. 1-2-B 1-3: CONFIRMATION OF PLAYBACK TORQUE AND BACK TENSION TORQUE DURING PLAYBACK Fig. 1-1-A
Reel Disk Height Adjustment Jig (JG024A)
1. Load a video tape (T-120) recorded in standard speed mode. Set the unit to the PLAY mode. 2. Install the tentelometer as shown in Fig. 1-3. Confirm that the meter indicates 20 ± 2gf in the beginning of playback. · USING A TORQUE CASSETTE GAUGE (KT-300NR) 1. After confirmation and adjustment of Tension Post position (Refer to item 1-2), load the torque cassette gauge (KT-300NR) and set to the PLAY mode. 2. Confirm that the right meter of the torque tape indicates 70~110gf·cm during playback in SP mode. 3. Confirm that the left meter of the torque tape indicates 25~40gf·cm during playback in SP mode.
Tentelometer
Reel Disk
Master Plane (JG022)
(B)
10(+0.2, -0)mm (C)
(A) Height Adjustment Washer 2.6x4.7xT0.13 2.6X4.7xT0.25
Video Tape
Fig. 1-1-B
P1 Post
Guide Roller
Fig. 1-3
MECHANICAL ADJUSTMENTS
1-4: CONFIRMATION OF VSR TORQUE 1. Operate within 4~5 seconds after the reel disk begins to turn. 2. Install the Torque Gauge (JG002F) and Adapter (JG002B) on the S Reel. Set to the Rewind mode. (Refer to Fig.1-4) 3. Then, confirm that it indicates 120~180gf·cm. NOTE Install the Torque Gauge on the reel disk firmly. Press the REW button to turn the reel disk. 1-5: CONFIRMATION OF REEL BRAKE TORQUE (S Reel Brake) (Refer to Fig. 1-4) 1. Set to the STOP mode. 2. Move the Idler Ass'y from the S Reel. 3. Install the Torque Gauge (JG002F) and Adapter (JG002B) on the S Reel. Turn the Torque Gauge (JG002F) clockwise. 4. Then, confirm that it indicates 70~100gf·cm. (T Reel Brake) (Refer to Fig. 1-4) 1. Set to the STOP mode. 2. Move the Idler Ass'y from the T Reel Ass'y. 3. Install the Torque Gauge (JG002E) and Adapter (JG002B) on the T reel. Turn the Torque Gauge (JG002E) counterclockwise. 4. Then, confirm that it indicates 35~60gf·cm.
Torque Gauge/Adapter (JG002F/JG002B)
2. CONFIRMATION AND ADJUSTMENT OF TAPE RUNNING MECHANISM
Tape Running Mechanism is adjusted precisely at the factory. Adjustment is not necessary as usual. When you replace the parts of the tape running mechanism because of long term usage or failure, the confirmation and adjustment are necessary. 2-1: GUIDE ROLLER 1. Playback the Alignment Tape. 2. Connect CH-1 of the oscilloscope to TP4001 (Envelope) and CH-2 to TP1002 (SW Pulse). 3. Press and hold the TRACKING-AUTO button on the remote control more than 2 seconds to set tracking to center. 4. Trigger with SW Pulse and observe the envelope. (Refer to Fig. 2-1-A) 5. When observing the envelope, adjust the Taper Nut Driver slightly until the envelope will be flat. Even if you press the Tracking Button, adjust so that flatness is not moved so much. 6. Adjust so that the A : B ratio is better than 3 : 2 as shown in Fig. 2-1-B, even if you press the Tracking Button to move the envelope (The envelope waveform will begin to decrease when you press the Tracking Button). 7. Adjust the PG shifter during playback. (Refer to the ELECTRICAL ADJUSTMENTS) NOTE After adjustment, confirm and adjust A/C head. (Refer to item 2-2)
CH-1 Envelope (TP4001)
Torque Gauge/Adapter (JG002E/JG002B)
CH-1 Track CH-2 SW Pulse (TP1002)
CH-2 Track
S Reel
Envelope
(1) T Reel Ass'y
Fig. 1-4
CH-3 Audio (2)
NOTE If the torque is out of the range, replace the following parts. Check item 1-4 1-5 Replacement Part Idler Ass'y/Clutch Ass'y
Max Entrance Exit
Fig. 2-1-A
T Brake Spring/Tension Spring
A
B
Max
A:B=3:2
Fig. 2-1-B
MECHANICAL ADJUSTMENTS
2-2: CONFIRMATION AND ADJUSTMENT OF AUDIO/ CONTROL HEAD When the Tape Running Mechanism does not work well, adjust the following items. 1. Playback the Alignment Tape. 2. Confirm that the reflected picture of stamp mark is appeared on the tape prior to P4 Post as shown in Fig. 2-2-A. a) When the reflected picture is distorted, turn the screw 1 clockwise until the distortion is disappeared. b) When the reflected picture is not distorted, turn the screw 1 counterclockwise until little distortion is appeared, then adjust the a). 3. Turn the screw 2 to set the audio level to maximum. 4. Confirm that the bottom of the Audio/ Control Head and the bottom of the tape is shown in Fig. 2-2-C. c) When the height is not correct, turn the screw 3 to adjust the height. Then, adjust the 1~3 again.
Audio/Control Head Reflected picture of Stamp Mark P4 Post
2-3: TAPE RUNNING ADJUSTMENT (X VALUE ADJUSTMENT) 1. Confirm and adjust the height of the Reel Disk. (Refer to item 1-1) 2. Confirm and adjust the position of the Tension Post. (Refer to item 1-2) 3. Adjust the Guide Roller. (Refer to item 2-1) 4. Confirm and adjust the Audio/Control Head. (Refer to item 2-2) 5. Connect CH-1 of the oscilloscope to TP4001, CH-2 to TP1002 and CH-3 to HOT side of Audio Out Jack. 6. Playback the Alignment Tape. 7. Press and hold the TRACKING-AUTO button on the remote control more than 2 seconds to set tracking to center. 8. Set the X Value adjustment driver (JG153) to the 4 of Fig. 2-2-B. Adjust X value so that the envelope waveform output becomes maximum. Check if the relation between Audio and Envelope waveform becomes (1) or (2) of Fig. 2-1-A.
Stamp Mark
Fig. 2-2-A
Audio/Control Head
3
1
2 4
Fig. 2-2-B
Audio/Control Head Tape
0.25±0.05mm
Fig. 2-2-C
MECHANICAL ADJUSTMENTS
3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE
5
6
4
3 7 2 1 8
12
11
10
9
1. Tension Adjust 7. P4 Post 2. Tension Arm 8. T Brake Spring 3. Guide Roller 9. T Reel Ass'y 4. P1 Post 10. Idler Ass'y 5. Audio/Control Head 11. S-S Brake Spring 6. X value adjustment driver hole 12. S Reel
ELECTRICAL ADJUSTMENTS
1. ADJUSTMENT PROCEDURE
Read and perform these adjustments when repairing the circuits or replacing electrical parts or PCB assemblies. CAUTION When replacing IC's or transistors, use only specified silicon grease. (To prevent the damage to IC's and transistors.) On-Screen Display Adjustment 1. Unplug the AC plug for more than 5 seconds to set the clock to the non-setting state. Then, set the volume level to minimum. 2. Press the VOL. DOWN button on the set and the channel button (9) on the remote control simultaneously to display adjustment mode on the screen as shown in Fig. 1-1. NOTE Use the channel buttons (1-8) on the remote control to select the options shown in Fig. 1-1. Press the channel button (0) on the remote control to end the adjustments. 1. H/V 2. AKB 3. COLOR TEMP 4. PICTURE 5. OTHERS 6. TEST PATTERN 7. STEREO/SAP 8. (VOL TEST) 0. END Fig. 1-1
6.5H 6.5H CH-1 CH-2
Fig. 2-1-A
CH-2
CH-1
Fig. 2-1-B 2-2: RF AGC 1. Receive the monoscope pattern. 2. Connect the digital voltmeter between the pin 5 of CP603 and the pin 1 (GND) of CP603. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (5) on the remote control. The Fig. 2-2 appears on the display. 4. Press the channel button (1) on the remote control. 5. Press the VOL. UP/DOWN button on the remote control until the digital voltmeter is 2.3 ± 0.05V. 1. RF AGC DELAY 2. VIDEO LEVEL 3. FM LEVEL 4. OSD H 5. CUT OFF 6. 7. 8. 0. RETURN
2. BASIC ADJUSTMENTS (VCR SECTION)
2-1: PG SHIFTER 1. Connect CH-1 on the oscilloscope to TP1002 and CH-2 to TP4201. 2. Playback the alignment tape. 3. Press and hold the Tracking-Auto button on the remote control more than 2 seconds to set tracking to center. 4. Press the VOL. DOWN button on the set and the channel button (3) on the remote control simultaneously until the indicator REC disappears. If the indicator REC disappears, adjustment is completed. (If the above adjustments doesn't work well:) 5. Press the VOL. DOWN button on the set and the channel button (3) on the remote control simultaneously until the indicator REC disappears. 6. When the REC indicator is blinking, press both VOL. DOWN button on the set and the channel button (4) on the remote control simultaneously and adjust the Tracking +/- button until the arising to the down of Head Switching Pulse becomes 6.5 ± 0.5H. (Refer to Fig. 2-1-A, B) 7. Press the Tracking Auto button.
Fig. 2-2
2-3: VCO FREERUN 1. Place the set with Aging Test for more than 15 minutes. 2. Receive the UHF. 3. Disconnect the Antenna while receiving the UHF and set to the Noise screen. 4. Once turn off the Power and turn on the Power again. 5. Approxi. 3 seconds later, input the Antenna again. 6. Connect the digital voltmeter to TP601. 7. Adjust the L610 until the digital voltmeter is 3.1 ± 0.05V.
(TV SECTION)
2-4: CONSTANT VOLTAGE 1. Using the remote control, set the brightness and contrast to normal position. 2. Connect the digital voltmeter to TP401. 3. Set condition is AV MODE without signal. 4. Adjust the VR502 until the DC voltage is 132 ± 0.5V.
ELECTRICAL ADJUSTMENTS
2-5: CUT OFF 1. Place the set with Aging Test for more than 15 minutes. 2. Set condition is AV MODE without signal. 3. Using the remote control, set the brightness and contrast to normal position. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (5) on the remote control. The Fig. 2-2 appears on the display. 5. Press the channel button (5) on the remote control. 6. Adjust the Screen Volume until a dim raster is obtained. 2-6: FOCUS 1. Using the remote control, set the brightness and contrast to normal position. 2. Receive the monoscope pattern. 3. Turn the Focus Volume fully counterclockwise once. 4. Adjust the Focus Volume until picture is distinct. 2-7: SUB BRIGHTNESS (TV) 1. Receive the black pattern*. (RF Input) 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (4) on the remote control. The Fig. 2-3 appears on the display. 4. Press the channel button (1) on the remote control. 5. Press the VOL. UP/DOWN button on the remote control to adjust the screen brightness from bright to dim. Then set to the completely dim point. * The Black Pattern means the whole black raster signal. Select the "RASTER" of the pattern generator, set to the OFF position for each R, G and B. 1. BRIGHT 2. CONTRAST 3. COLOR 4. TINT 5. SHARPNESS 6. OSD CONT 7. 8. 0% 2-9: SUB COLOR (TV) 1. Receive the color bar pattern. (RF Input) 2. Connect the synchro scope to TP801. 3. Using the remote control, set the brightness, contrast, color and tint to normal position. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (4) on the remote control. The Fig. 2-3 appears on the display. 5. Press the channel button (3) on the remote control. 6. Adjust the VOLTS RANGE VARIABLE knob of the oscilloscope until the range between white 100% and 0% is set to 4 scales on the screen of the oscilloscope. 7. Press the VOL. UP/DOWN button on the remote control until the red color level is adjusted to 95 ± 5% of the white level. (Refer to Fig. 2-4) White 0%
95%
Red Level White 100% 2-10: SUB COLOR (AV) 1. Receive the color bar pattern. (Audio Video Input) 2. Connect the synchro scope to TP801. 3. Using the remote control, set the brightness, contrast, color and tint to normal position. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (4) on the remote control. The Fig. 2-3 appears on the display. 5. Press the channel button (3) on the remote control. 6. Adjust the VOLTS RANGE VARIABLE knob of the oscilloscope until the range between white 100% and 0% is set to 4 scales on the screen of the oscilloscope. 7. Press the VOL. UP/DOWN button on the remote control until the red color level is adjusted to 95 ± 5% of the white level. (Refer to Fig. 2-4) 2-11: SUB TINT (TV) 1. Receive the color bar pattern. (RF Input) 2. Connect the synchro scope to TP803. 3. Using the remote control, set the brightness, contrast, color and tint to normal position. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (4) on the remote control. The Fig. 2-3 appears on the display. 5. Press the channel button (4) on the remote control. 6. Press the VOL. UP/DOWN button on the remote control until the section "A" becomes a straight line. (Refer to Fig. 2-5) Fig. 2-4
0. RETURN
Fig. 2-3
2-8: SUB BRIGHTNESS (AV) 1. Receive the black pattern*. (Audio Video Input) 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (4) on the remote control. The Fig. 2-3 appears on the display. 4. Press the channel button (1) on the remote control. 5. Press the VOL. UP/DOWN button on the remote control to adjust the screen brightness from bright to dim. Then set to the completely dim point.
ELECTRICAL ADJUSTMENTS
2-15: VERTICAL LINEARITY 1. Receive the monoscope pattern. 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (1) on the remote control. The Fig. 2-6 appears on the display. 4. Press the channel button (5) on the remote control. 5. Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on upside and downside becomes minimum. Fig. 2-5 2-12: SUB TINT (AV) 1. Receive the color bar pattern. (Audio Video Input) 2. Connect the synchro scope to TP803. 3. Using the remote control, set the brightness, contrast, color and tint to normal position. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (4) on the remote control. The Fig. 2-3 appears on the display. 5. Press the channel button (4) on the remote control. 6. Press the VOL. UP/DOWN button on the remote control until the section "A" becomes a straight line. (Refer to Fig. 2-5) 2-13: HORIZONTAL PHASE 1. Receive the monoscope pattern. 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (1) on the remote control. The Fig. 2-6 appears on the display. 4. Press the channel button (1) on the remote control. 5. Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on right and left becomes minimum. 1. H. PHASE 2. H. BLK 3. V. SIZE 4. V. POSI 5. V. LIN 6. V. SC 7. V. COMP 8. (H FREQ) 2-16: VERTICAL POSITION 1. Receive the color bar pattern. 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (1) on the remote control. The Fig. 2-6 appears on the display. 4. Press the channel button (4) on the remote control. 5. Press the VOL. UP/DOWN button on the remote control until the horizontal line of the color bar comes to approximate center of the CRT. 2-17: OSD HORIZONTAL 1. Receive monoscope pattern. 2. Using the remote control, set brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (5) on the remote control. The Fig. 2-2 appears on the display. 4. Press the channel button (4) on the remote control. 5. Press the VOL. UP/DOWN on the remote control until the difference of A and B becomes minimum. (Refer to Fig. 2-7)
[ TV ]
"A"
OSD H
A 2-18: WHITE BALANCE 0. RETURN
B
Fig. 2-7
Fig. 2-6
2-14: VERTICAL SIZE 1. Receive the monoscope pattern. 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (1) on the remote control. The Fig. 2-6 appears on the display. 4. Press the channel button (3) on the remote control. 5. Press the VOL. UP/DOWN button on the remote control until the horizontal over scan is equal to the vertical over scan.
1. Place the set with Aging Test for more than 15 minutes. 2. Receive the color bar pattern. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (2) on the remote control. The Fig. 2-8 appears on the display. 4. Adjust the adjustment mode display of Fig. 2-8 until the white color is loocked like a white. 1. AKB AUTO 2. R.BIAS 3. G.BIAS 4. B.BIAS 5. R.DRIVE 6. G.DRIVE 7. B.DRIVE 8. AGC AUTO
0. RETURN
Fig. 2-8
ELECTRICAL ADJUSTMENTS
3. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (VCR SECTION)
TP1001
TP1002 TP4001
CP603 TU601
L610 TP601 TP4201 J4201
SYSCON PCB
ELECTRICAL ADJUSTMENTS
(TV SECTION)
J801 TP803 TP801
CRT PCB
VR502
TP401
T501
FOCUS VOLUME SCREEN VOLUME
FB401
MAIN PCB
ELECTRICAL ADJUSTMENTS
4. PURITY AND CONVERGENCE ADJUSTMENTS
NOTE 1. Turn the unit on and let it warm up for at least 30 minutes before performing the following adjustments. 2. Place the CRT surface facing east or west to reduce the terrestrial magnetism. 3. Turn ON the unit and demagnetize with a Degauss Coil. 4-1: STATIC CONVERGENCE (ROUGH ADJUSTMENT) 1. Tighten the screw for the magnet. Refer to the adjusted CRT for the position. (Refer to Fig. 4-1) If the deflection yoke and magnet are in one body, untighten the screw for the body. 2. Receive the green raster pattern from the color bar generator. 3. Slide the deflection yoke until it touches the funnel side of the CRT. 4. Adjust center of screen to green, with red and blue on the sides, using the pair of purity magnets. 5. Switch the color bar generator from the green raster pattern to the crosshatch pattern. 6. Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets. 7. Combine red/blue (magenta) and green by adjusting the pair of 6 pole magnets. 8. Adjust the crosshatch pattern to change to white by repeating steps 6 and 7. 4-2: PURITY NOTE Adjust after performing adjustments in section 4-1. 1. Receive the green raster pattern from color bar generator. 2. Adjust the pair of purity magnets to center the color on the screen. Adjust the pair of purity magnets so the color at the ends are equally wide. 3. Move the deflection yoke backward (to neck side) slowly, and stop it at the position when the whole screen is green. 4. Confirm red and blue colors. 5. Adjust the slant of the deflection yoke while watching the screen, then tighten the fixing screw. DEFLECTION YOKE DEFLECTION YOKE SCREW MAGNET SCREW 4-3: STATIC CONVERGENCE NOTE Adjust after performing adjustments in section 4-2. 1. Receive the crosshatch pattern from the color bar generator. 2. Combine red and blue of the 3 color crosshatch pattern on the center of the screen by adjusting the pair of 4 pole magnets. 3. Combine red/blue (magenta) and green by adjusting the pair of 6 pole magnets. 4-4: DYNAMIC CONVERGENCE NOTE Adjust after performing adjustments in section 4-3. 1. Adjust the differences around the screen by moving the deflection yoke upward/downward and right/left. (Refer to Fig. 4-2-a) 2. Insert three wedges between the deflection yoke and CRT funnel to fix the deflection yoke. (Refer to Fig. 4-2-b) RGB RGB
R G B
R G B RIGHT/LEFT SLANT
UPWARD/DOWNWARD SLANT Fig. 4-2-a
WEDGE
WEDGE
WEDGE WEDGE POSITION Fig. 4-2-b
6 POLE MAGNETS 4 POLE MAGNETS PURITY MAGNETS Fig. 4-1
TV BLOCK DIAGRAM
V. OUTPUT IC401 LA7840 THERMAL PROTECTION PUMP UP AMP VCC 2 5 6 7 Q405 H. DRIVE Q406 H. OUTPUT DY FB401 47
X604 3.579545MHz
CHROMA/IF IC604 LA76814BM Q608 BUFFER
ABL
52 54 66 73
8 CLMP CLMP
HV J801 EF G2 F 8 3 7 V801 CRT
VCO VIDEO SW PPC1 TINT HOR VCO
FBP PFC2 PHASE AHIFTER HOR OUT VER C/D VER SEP
VER RANP
11 33
4 2
9 1
Y/C VIDEO Y/C AUDIO
Y/C/AUDIO/ HEAD AMP/ IN/OUT
DC VOL
SW DET FM BPF SPLL VIDEO PMP
PMP LIM
1/256 SW ACC SYNC SEP HOR C/D
PFC1
30
TU_AUDIO TU_VIDEO
Q602
75 69 67 56 BUS 9
TU601 1 4 5 11 SAW FILTER CF601 1 4 5
9
BPF
26
MICON/ POWER
SDA SCL
BUFFER
VIDEO DET
DRIVE/CUT-OFF
19 17 18
Q806 BLUE AMP Q804 RED AMP Q805 GREEN AMP
Q605 CUT OFF P.CON+9V
DEMO
COLOP CLAMP RGB MATRIX OSD SW
10
77 RF AGC
VIF IF AGC
CONTRAST BRIGHT
X_RAY DELAY LINE
79 78
BLACK STRETCH BLACK STRETCH
15
VD
HD OSD_BLK OSD_B OSD_G OSD_R AFT_M MICON/ POWER
L610 6 4 L503 DEGAUSS COIL TH501 DEGAUSS ELEMENT 1 3 59 60
CLAMP
AFT
PLL P2C
OSD FIX GAIN
PEAKING CORING
14 13 12
8
3 1
F501
2
RY501 RELAY
D501~D504 RECTIFIER
Q621 SW.
Q620 +5V DRIVER
6V REG. IC601 KIA7806PI
3
Q503
1
AT 10V
AC IN Q507
FEED BACK SW.
F502
T501
6
+B 100V DRIVE
SOUND AMP. IC351 AN7511 2 8
SP351 SPEAKER
IC506 ON3171R FEED BACK
14
AT 30V
Q502 100V DRIVE
1
3
4
VR502
+B ADJ. Q506 5V SW. Q513 5V SW.
SW. REG. IC501 STR-F6612
Q504 RELAY DRIVE
12
1
3
AT 5.6V
5
Q501 100V SW.
1 6 2 7
J351 HEAD PHONE
5V POWER REG. IC502 KIA7805PI
1
16
9
1
3
AT +12V TV_POWER-H VCR_POWER-H P.CON +9V POWER FAIL(DC) MICON/ POWER
12V REG. IC504 KIA7812PI
1
2
4
9V REG. IC503 PQ09RD08
Y/C/AUDIO/HEAD AMP/IN/OUT BLOCK DIAGRAM
X4001 3.579545MHz
Q4010 BUFFER
Y/C/A/H.AMP IC4001 LA71170M-MPB
CP4001 6 SP CH1 (R) 5 SP COM 4 SP CH2 (L) CYL 3 EP/LP CH1 (R) 2 EP/LP COM 1 EP/LP-CH2 (L) 85 94 88 Q4004 BUFFER 90
REC FM AGC2 Main CONV BPF2 REC FM-AGC S-EQ P LINE AMP AUTO BIAS REC AMP R PB_FM EQ ALC ALC DAT S N
71 82
ENV DET R
72
P KIL DET R P BEFORE
64
63 61
59
57
54
52 51
VXO APC APC PB REC
C COMB Y_DELAY COMB AMP
84
KIL
CLK 49 -IN 46
45
COMP OUT
320FH VXO VCO PB_FM XO Sub AGC CONV P R R REC BGA P
PB BGA BEFORE AFTER PB BGA AFTER C-LPF
Q4012
R P CLAMP
Y.N.R
43
NL DE EMP
N.C.1
BUFFER
41
R P
B_UP AMP
P R P
COMP SCL
SDA MICON/ POWER H.SW
91 23 24 30 CTL PB EQ 100 1
PB/EE AMP EQ DECODER SERIAL
ACC
R
PIC_CTL ANR
Y/C MIX
38 36 34
TU_VIDEO TU_AUDIO Y/C_AUDIO
FM FM DEM DEM
P
R
1/2
CTLCTL+
P
TH
R
W/D DOUBLE NL DETAIL CLIP LIM EMPHA ENH
P
FBC
TV SYNC EE SEP AGC 6DB
32 31 29 Q4011
BUFFER Y/C_VIDEO
Q4003
SW
3 4 11
MUTE
CLAMP P R
R
Q4001, Q4002
AUDIO PB SW
Y-VCC 19 21 20 16
SD_VIDEO
99
5
6
7
98
96
97 76 78 80
17
18
CP4005
6 5 HEAD AUDIO CONTROL 4 3 2 1 AUDIO PB AUDIO REC CTL+ CTLAE HEAD(-) AE HEAD(+) Q4005
Q4212
Q4007 AMP Q4009 BUFFER
Q4210 MUTE SW
EXT_MUTE
5 4
2 3
DRIVER
Q4013
SW
BUFFER
MICON/ POWER
V.REC_ST_H FRONT_VIDEO FRONT_AUDIO
BIAS OSD L4003
Q4006 BIAS OSC
15.6KHz TRAP L4001 CP4004 2 FE HEAD (GND)
AUDIO 1 FE HEAD (HOT) VIDEO 6 5 IN OUT 4 GND 3 2 IN OUT 1 GND
J4201
FE HEAD
MICON/POWER BLOCK DIAGRAM
SW1001 TIMER SYSCON MICON IC1001 OEC7041A
2 1
3 4 50
TAB SW
RESET-L
34
3 OUT
SYSTEM RESET IC1002 PST600H POWER FAIL(DC)
TV
AT+5.6V
POWER_FAIL_L 1 2 1 4 3 4 3 1
MS_SEN A Q1009
85 39 38 36 35
P. CON 5V
MSSEN-A
X-OUT(12MHz) X-IN(12MHz)
X1001 12MHz X1002 32.768KHz
Q1023 X_RAY_SW AUDIO L
J701 3 1 4 2 FRONT_AUDIO FRONT_VIDEO COMP EXT_MUTE CTL+ CTLV.REC_ST_H SD_VIDEO Q1014
2
MS_SEN B Q1003
MSSEN-B
XC-OUT(32KHz)
AT 5.6V Q1019 P.CON 5V DRIVER Q1006 P.CON SW
2
XC-IN(32MHz) ENV_CMP_IN
23
VIDEO
Q1002
SENSOR SW SENS LED
17
26 95 94 66 56 18
EXT-MUTE CTL+
P. CON 5V
1 2 1
3 4 3 4 REEL SENS. Q1005 REEL SENS. Q1001
79
REEL-S
CTL-
Y/C/AUDIO/ HEAD AMP/ IN/OUT
V-REC-ST-H
CVIN
80
REEL-T
VIDEO-H.SW
VIDEO_H SW
H.SW SCL SDA
AT+12V
2
IIC-DATA1 IIC-CLK1 CTL AMP-OUT FF/REW-L
72 71 97 83 64 63 62 7 60 59 58
5 SDA 6 SCL Q1004 FF/REW_SW EEP ROM IC1099 S-24C04BDP-LA
X_RAY SDA SCL OSD_R OSD_G OSD_B AFT_M
Q1018
TV VCR_POWER_H
BUFFER
27
VCR-POWER
R G B
CP1004 4 CTL CAPSTAN 5 VCO DD UNIT 6 FG 7 1 3 5
76 87 11 90 89 77 D1003 Q1024 LED DRIVER 61
CAP-PWM CAP-FG CAP-FWD DRUM-PG
TV
AFT(MONI) OSD OUT1 V-SYNC H/C-SYNC
Q1015
OSD_BLK VD
Q1016
CAP.M F/R CYL PG CYL FG CYL DRIVE
INVERTER INVERTER
CP1005
HD TV_POWER_H
MICRO MOTOR
DRUM-FG DRUM-PWM KEY A 9
Q1017 CENTER LED TV-POWER
KEY B 28
P. CON 5V
LOADING MOTOR DRIVER IC1003 BA6955AN
BUFFER
POWER ON/OFF
REC/OTR
STOP/EJECT
PLAY
FF/CUE
REW/REV
10 Q4204 OS1001 1 2 3
CONTROL LOGIC POWER SAVE 3 TSD 4 2 CP1006 2 BOT 3 LDM4 LDM+ CP1002 1 EOT 5 7 4 BOT REC LED 30 EOT REMOCON-IN 14 Q4205
TV POWER SW
CH DOWN
CH UP
VOL. UP
VOL. DOWN
INPUT SELECT
REC LED SW
D791 Q4206 D793 D792
AT+5.6V
20 21
LDM-RVS LDM-FWD T-REC LED 29
DECK
T-REC LED SW
PRINTED CIRCUIT BOARDS MAIN/CRT
SOLDER SIDE
W014 CP820 W047 R423 C538 W020 W822 C414 W817 C520 W012 W009 C528 D515 C537 R512 W813 CP804 CP810 C532_1 W004 C511_1 W010 W028 C424 W027 W826 C423 W823 R447 W006 W005 HS503
IC502
IC503 W818 IC504 R528 HS502 W049 R509
R5
R535
C524_1
R527
Q406 HS402 TP402
C540_2
10
D517 C526
R518
FH503
R554
Q501 R517 W017
D510_1
R519
F502 Q502
D511
FB401
C517
W816 R460
W825 C422_1
R520 R521
D519 C519 ICP503 C527 D508
C521
W018
FH504 Q503
C541
W001
C523_2
R456
C5
R526
D509
18
C438
C560
C516 D505 ICP505 C418_1 T401 L401 C450
C531_1
B504 ICP504
D512
C417 R530 R449 C416
Q508 C501
ICP502
R44
8_3
R531
R490 W850 C432 R453 C429_1 W831
W031 L402 CP401 TP403 Q405
7 50 C
R534
W048
R454 D411 R406 C430_1
D502 R537 TP401 W023 D501 D503 B505 C514_1 W022 C406_1 VR502 R501 R523 W820 R404 W036 C503 HS501 D504 T501 R502
CD803 CP803A C421_1
CP803B W038 W039
Q513 R513 R516 C549 Q506
C820 R808
0
L801 S801
02
01
03
TP8
TP8
Q805
TP8
Q804
C80
1
W803
W808
Q520
C506 Q806 W043 W042 C822 C530 C819 R532 C805 W045 W041 FH502
L501_1 F501 FH501
R812 R815 R813 R811 C809 C810 W040 C811 R816
CP501 W015 R533
CP850
CC005
CP 80
1
R814
CC001
R5
R552 C554 D523
R81
R5
05
00
R450
D408
R417
R441
D506
D521
D413
D409
R439
R440 C403
W037
D412
C529 IC501 D518 W046 R543 W007 B502 C510_1 C509
C502
W033
C411
R419
R442 R443_1 R444 C431 CC004 TP404 R407 R418 R415 R421 C433_1
R802
R401
C407_2 R411 C405 R413 R416 R414
W034
RY501
W821 D516
R408_1
HS401 D401 C409
C413
R515
Q504 R409 W024
R503 R506
C512
IC401 C402 R402 C412 C401
R553 TH501 D529
D526 R514
CP502
C515
IC506
R542
R529
C508
R80 5
W804
L502_1
W810
R807
J8 01
Q507
R820
W025
R801
W016
D528
PRINTED CIRCUIT BOARDS
JACK/LED SOLDER SIDE
R761 J351 D792
R754 W805 D791 D793
CD352
R350 R351 W002 J701_1
R793 W811
W001
C352
CD351_1
DECK
SOLDER SIDE
CP101 CP102
Q101
Q102
PRINTED CIRCUIT BOARDS SYSCON (INSERTED PARTS)
SOLDER SIDE
TP1002 W133
RISK
OF FIRE
- REPLACE
AS MARKED.
C661 IC601 W811 D622 W080 W079 W131 W855 W091 W089 W831 W146 W144 W145 W143 W147 C1037 R655 CP351
TP4001 CC001 R4201 R4025
CP1002
W082
SW1011
W083
W038
CP4
004
W200
R4020
W037 TP1001
W036
R4029
W035
Q620
SW1004
SW1001
L4009
L4012
W032 L4005 W090
SW1006
C1063
W003 W002
W077 W078 C4078
W847
W030
W047 L4011 L4015 W045
SW1010
C4023 L4006 X4001
W142 W088 W141 CP4001 C4007 W086
R4044
W833 R4067 L4014
C4041
W813 W043 W042 R4061
W007
SW1009
01 10 Q
W006
C4027 W202
SW1007
W827
W085
W084
W854
C351 IC351
L4001
W137 W136 C4012 C4015 W201 R4007
C4039 C4051
C4046 C1076 C4050
C4016 C4055
W140
W139
L608
C4053
TO MAIN PCB CD604 W832
W017 R1092 W057 R1016 W055 W015 W054 W839 W840 W841 W051 W013 W012 W011 W050 W010 W009 SW1002 R1040 W008 W022 D1017 W053 SW1005 W016 OS1001
C356
W177
S801X
W178
D605
R652
W134
L607 L613 R626 R675
W184
R628 W183 CD820 C357 C354
L4002 C633 W150
Q4005
R616
C4025 C4048 C4028
C4058 C4073
C4063
C634
D4004
C4062
C618
C4070
Q4001
W810 D1003
R4031
C4067
W182 D601
C643
R4074
W181
Q4002
W014
W868
L4003
L4004
C4071
R664 R640 C652 C654 W149 CD850
L4007
C4040
C4068
W052
B4003 R4054 L4008 C4076
R638
W148
C4006
C660 X604 L602 C4209 W189 C650
C4035 Q4006 W118
W094
C646 C659
W815 W092 W119
C4003
L1001 W048
W097
W098
W096
D604
W093
D603
W166
D4001
W049
C626
C645 C611
X1001
R630 W117 W808 R650 W162 W165 W115 W116 R4063 R4062 R4035
C4220
J4201 C617 TP4201 C4211 C625 R4239 S801Y W197 C668 C355 W194 R613 C656
W073
Q