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REVISION HISTORY BG2T
MODEL PART NO. :
CHASSIS
9-872-280-01
KV-HA21M80 KV-HA21N70 KV-HA21N80
NO.
1
SUFFIX
-01
DATE
2002/01
SUPP / CORR
--
DESCRIPTION
1st. Issue
SERVICE MANUAL
MODEL COMMANDER DEST. CHASSIS NO. MODEL
BG2T CHASSIS
COMMANDER DEST. CHASSIS NO.
KV-HA21M80 KV-HA21N70 KV-HA21N80
RM-969 RM-968 RM-968
India
SCC-U74C-A
Philippines SCC-U76D-A Philippines SCC-U76C-A
MUTING DISPLAY POWER
MTS
VIDEO
TV
1 4 7
JUMP
SOUND MODE SPACE SOUND
2 5 8 0
VOL
3 6 9
ENT
CH
1 4 7 SOUND MODE
2 5 8 0
2
3 6 9
JUMP
PROGR
WAKE UP
SLEEP
AUTO PROGRAM ADD/ ERASE
CABLE
SPACE SOUND
TV
TV
RM-968
RM-969
TRINITRON ® COLOR TV
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
SPECIFICATIONS
Note Power requirements Television system Color system 110-240 V AC, 50/60Hz B/G, I, D/K, M M PAL, PAL 60, SECAM, NTSC3.58, NTSC4.43 NTSC3.58, PAL*, PAL 60*, NTSC4.43* Channel coverage B/G KV-HA21M80 KV-HA21N70/HA21N80 only KV-HA21M80 *AN IN only (KV-HA21N70/HA21N80)
Power consumption (W) Indicated on the rear of the TV
VHF: E2 to E12 UHF: E21 to E69 CATV: S01 to S03, S1 to S41 UHF: B21 to B68 CATV: S01 to S03, S1 to S41 VHF: C1 to C12, R1 to R12 UHF: C13 to C57, R21 to R60 CATV: S01 to S03, S1 to S41, Z1 to Z39 VHF: A2 to A13 UHF: A14 to A79 CATV: A-8 to A-2, A to W+4, W+6 to W+84 VHF: 2 to 13 UHF: 14 to 69 CATV: 1 to 125 75-ohm external terminal 5W + 5W Input: 2* Output: 1 Input: 2* Output: 1 Output: 1 Output: 1 21 in. 54 51 639 × 458 × 490 26 Phono jacks; 1 VP-P, 75 ohms Phono jacks; 500 mVrms Stereo minijack Monaural minijack
KV-HA21M80 KV-HA21M80
I D/K
KV-HA21M80
M
KV-HA21M80
M
KV-HA21N70/HA21N80 only
(Antenna) Audio output (Speaker) Number of terminal D Video Audio 2 (Headphone) @ (Earphone) Picture tube Tube size (cm) Screen size (cm) Dimension (w/h/d, mm) Mass (kg)
* One input line available * One input line available except KV-HA21N70 KV-HA21N70 only
Measured diagonally Measured diagonally
Design and specifications are subject to change without notice.
CAUTION SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR CARBON PAINTED ON THE CRT, AFTER REMOVING THE ANODE.
SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY SHADING AND MARK ! ON THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
2
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
TABLE OF CONTENTS
Section Title Page Section Title Page
SELF DIAGNOSTIC FUNCTION ................................... 4 1. GENERAL ................................................................. 7 2. DISASSEMBLY 2-1. Rear Cover Removal ............................................... 12 2-2. Speaker Removal .................................................... 12 2-3. Chassis Assy Removal ............................................ 12 2-4. Service Position ...................................................... 12 2-5. Terminal Bracket Removal ..................................... 12 2-6. Replacement Of Parts ............................................. 12 2-6-1. Replacement Of Light Guide ....................... 12 2-6-2. Replacement Of Power Button .................... 12 2-7 Picture Tube Removal ............................................. 13 3. SET-UP ADJUSTMENTS 3-1. Beam Landing ......................................................... 14 3-2. Convergence ............................................................ 15 3-3. Focus Adjustment .................................................... 17 3-4. G2 (SCREEN) and White Balance Adjustments ... 17 4. CIRCUIT ADJUSTMENTS 4-1. Adjustment With Commander ................................ 18 4-2. Adjustment Method ................................................ 18 4-3. Picture Quality Adjustment .................................... 28 4-4. Deflection Adjustment ............................................ 28 4-5. A Board Adjustment After IC003 (MEMORY) Replacement ............................................................ 28 4-6. Picture Distortion Adjustment ................................ 29
5. DIAGRAMS 5-1. Block Diagram ........................................................ 30 5-2. Circuit Boards Location .......................................... 32 5-3. Schematic Diagram ................................................. 33 (1) A Board Schematic Diagram ............................ 34 (2) CV Board Schematic Diagram ......................... 36 5-4. Voltage Measurement ............................................. 40 5-5. Waveforms .............................................................. 43 5-6. Printed Wiring Boards and Parts Location ............. 44 5-7. Semiconductors ....................................................... 47 6. EXPLODED VIEWS 6-1. Picture Tube and Chassis ........................................ 49 7. ELECTRICAL PARTS LIST .................................... 50
3
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
SELF DIAGNOSTIC FUNCTION
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER lamp will automatically begin to flash. The number of times the lamp flashes translates to a probable source of the problem. A definition of the STANDBY/ TIMER lamp flash indicators is listed in the instruction manual for the user's knowledge and reference. If an error symptom cannot be reproduced, the remote commander can be used to review the failure occurrence data stored in memory to reveal past problems and how often these problems occur.
1. DIAGNOSTIC TEST INDICATORS
When an errors occurs, the STANDBY/TIMER lamp will flash a set number of times to indicate the possible cause of the problem. If there is more than one error, the lamp will identify the first of the problem areas. Result for all of the following diagnostic items are displayed on screen. No error has occured if the screen displays a "0". Diagnostic Item Description · Power does not turn on No. of times Self-diagnostic STANDBY/TIMER display/Diagnostic lamp flashes result Does not light -- Probable Cause Location · Power cord is not plugged in. · Fuse is burned out F4601 (F) Detected Symptoms · Power does not come on. · No power is supplied to the TV. · AC power supply is faulty.
· +B overcurrent (OCP) · Horizontal deflection overdrive
2 times
002:000 or 002:001~255
· H.OUT Q801 is shorted. · Power does not come on. (A board) · Load on power line is shorted. · Has entered standby state after horizontal raster. · Power line is shorted or power supply is stopped. · -13V is not supplied. (A board) · IC 551 faulty (A board) · Vertical deflection pulse is stopped
· White balance failure (no PICTURE) · Vertical deflection stopped · Micro reset
004:000 or 004:001~225 4 times
--
101:00 or 101:001~225
· Discharge CRT (CV Board) · Static discharge · External noise
· Power is shut down shortly, after this return back to normal. · Detect Micro latch up.
Note 1: If a + B overcurrent is detected, stoppage of the vertical deflection is detected simultaneously. The symptom that is diagnosed first by the microcontroller is displayed on the screen. Note 2: Refer to screen (G2) Adjustment in section 3-4 of this manual.
4
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
2. DISPLAY OF STANDBY/TIMER LIGHT FLASH COUNT
Diagnostic Item
2 times
Flash Count* 2 times 4 times
+B overcurrent/overvoltage Vertical deflection stopped
4 times Lamp ON 0.3 sec. Lamp OFF 0.3 sec. Lamp OFF 3 sec.
* One flash count is not used for self-diagnostic.
STANDBY/SLEEP lamp
3. STOPPING THE STANDBY/TIMER FLASH
Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY/TIMER lamp from flashing.
4. SELF-DIAGNOSTIC SCREEN DISPLAY
For errors with symptoms such as "power sometimes shuts off" or "screen sometimes goes out" that cannot be confirmed, it is possible to bring up past occurances of failure for confirmation on the screen: [To Bring Up Screen Test] In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below: [Screen display] / channel [5] / Sound volume [-] / Power ON Note that this differs from entering the service mode (mode volume [+]).
Self-Diagnosis screen display
SELF DIAGNOSTIC 002 : 000 004 : 000
Numeral "0" means that no fault has been detected.
101 : 000
5
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
5. HANDLING OF SELF-DIAGNOSTIC SCREEN DISPLAY
Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen during repairs. When you have completed the repairs, clear the result display to "0". Unless the result display is cleared to "0", the self-diagnostic function will not be able to detect subsequent faults after completion of the repairs. [Clearing the result display] To clear the result display to "0", press buttons on the remote commander sequentially as shown below when the diagnostic screen is being displayed. Channel [8] / 0 [Quitting Self-diagnostic screen] To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.
6. SELF-DIAGNOSTIC CIRCUIT
IC301 Y/CHROMA JUNGLE
IC001 SYSTEM II-DAT1 53
IC003 MEMORY
[V] D553 FROM [+B] Q500 50 MP/ PROTECT SDA 8
17
5
DAT
54
II-DAT0
[+B overcurrent ªOCPº]
Occurs when an overcurrent on the +B(135) line is detected by Q500. If Q500 go to ON and the voltage to pin 50 of IC301 more than 3.5V when V.SYNC is more than seven verticals in a period, the unit will automatically turn off. Occurs when an absence of the vertical deflection pulse is detected by Pin 17 and IC001 shut down the power supply. If the RGB levels* do not balance or become low level within 5 seconds, this error will be detected by IC301. TV will stay on, but there will be no picture. * (Refers to the RGB levels of the AKB detection Ref pulse that detects IK.)
[Vertical deflection stopped] [White balance failure]
6
KV-HA21M80/HA21N70/HA21N80
RM-969
The operating instruction mentioned here are partial abstracts from the Operating Instruction Manual. The page numbers of the Operating Instruction Manual remain as in the manual.
RM-968
SECTION 1 GENERAL
B WARNING
· Dangerously high voltages are present inside the TV. · TV operating voltage: 110 240 V AC. · Do not plug in the power cord until you have completed making all other connections; otherwise a minimum leakage current might flow through the antenna and other terminals to ground. · To avoid battery leakage and damage to the remote, remove the batteries from the remote if you are not going to use it for several days. If any liquid that leaks from the batteries touches you, immediately wash it away with water.
A Getting Started (KV-HA21N80/HA21N70)
Step 1
Insert the batteries (supplied) into the remote.
AUTO PROGRAM
A Getting Started (KV-HA21M80)
Step 1
Insert the batteries (supplied) into the remote.
SELECT
b
CABLE
Note · Do not use old batteries nor use different types of batteries together.
Step 2
Connect the antenna cable (not supplied) to 8 (antenna input) at the rear of the TV.
Tip · You can also connect your TV to other optional components. (See E)
For your own safety, do not touch any part of the TV, the power cord and the antenna cable during lightning storms. For children's safety, do not leave children alone with the TV. Do not allow children to climb onto it.
Step 3
Plug in the power cord, then press ! on the TV to turn it on.
Do not operate the TV if any liquid or solid object falls into it. Have it checked immediately by qualified personnel only.
SELECT
PROGR
SELECT
b
!
To prevent fire or shock hazard, do not expose the TV to rain or moisture.
Step 4
Press CABLE on the remote to select "CABLE: ON", then press AUTO PROGRAM on the remote to preset the channels automatically. (See J)
Tip · To stop the automatic channel presetting, press SELECT.
Do not block the ventilation openings of the TV. Do not install the TV in a confined space, such as a bookcase or built-in cabinet. Clean the TV with a dry and soft cloth. Do not use benzine, thinner, or any other chemicals to clean the TV. Do not scratch the picture tube.
Step 5
Press SELECT on the remote until "LANGUAGE/ : ENGLISH" appears on the screen, then press + or to change the on-screen display language.
Do not open the cabinet and the rear cover of the TV as high voltages and other hazards are present inside the TV. Refer servicing and disposal of the TV to qualified personnel. Your TV is recommended for home use only. Do not use the TV in any vehicle or where it may be subject to excessive dust, heat, moisture or vibrations.
WARNING (continued)
b b
Note · Do not use old batteries nor use different types of batteries together.
Do not place any objects on the TV.
Do not plug in too many appliances to the same power socket. Do not damage the power cord.
Step 2
Connect the antenna cable (not supplied) to 8 (antenna input) at the rear of the TV.
Tip · You can also connect your TV to other optional components. (See E)
Install the TV on a stable TV stand and floor which can support the TV set weight. Ensure that the TV stand surface is flat and its area is larger than the bottom area of the TV.
Pull the power cord out by the plug. Do not pull the power cord itself. Even if your TV is turned off, it is still connected to the AC power source (mains) as long as the power cord is plugged in. Unplug the TV before moving it or if you are not going to use it for several days.
C Securing the TV
To prevent the TV from falling, use the supplied screws, clamps and band to secure the TV.
20 mm 3.8 mm screws clamps band
Step 3
Plug in the power cord, then press ! on the TV to turn it on.
Step 4
Press SELECT and PROGR + on the TV at the same time for one to two seconds to preset the channels automatically. (See J)
Tip · To stop the automatic channel presetting, press SELECT.
Screw the band to the TV stand and to the provided hole at the rear of your TV.
or
(1) Put a cord or chain through the clamps. (2) Screw one clamp to a wall or pillar and the other clamp to the provided hole at the rear of your TV.
Step 5
Press SELECT on the remote until "LANGUAGE/ : ENGLISH" appears on the screen, then press + or to change the on-screen display language.
Note · Use only the supplied screws. Use of other screws may damage the TV.
7
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
D TV front and rear panels
TV rear panel
F Troubleshooting
If you find any problem while viewing your TV, please check the following guide. If any problem persists, contact your Sony dealer.
Symptom
Snowy picture, noisy sound
0
R L(MONO)
Solutions · Check the antenna cable and connection on the TV, VCR and on the wall. · Preset the channel manually again. (See J) · Check the antenna setup. Contact a Sony dealer for advice. · Select the appropriate TV system. (See J) · Check the power cord, antenna and the VCR connections. · Press ?/1 (power) or ! (main power) to turn on the TV. · Press 2 + to increase the volume level. · Press % to cancel the muting. · Do not use a hair dryer or other equipment near the TV. · Check the antenna setup. Contact a Sony dealer for advice. · Use the fine tuning ("FINE") function. (See J) · Turn off or disconnect the booster if it is in use. · Check the antenna setup. Contact a Sony dealer for advice. · Select the appropriate color system. (See J) · Adjust the color level. (See K) · Check the antenna setup. Contact a Sony dealer for advice. · Keep external speakers or other electrical equipment away from the TV. Press ! (main power) to turn off the TV for about 15 minutes, then turn it on again to demagnetize the TV. · Count the number of times the 1 (standby) indicator flashes. Press ! (main power) to turn off your TV. Contact your nearest Sony service center.
qa qs
!
Good picture, noisy sound No picture, no sound
Good picture, no sound
TV front panel
(MONO)
Dotted lines or stripes
L
R
SELECT
PROGR
!
3 2 1
Double images or "ghosts"
9
Button
8 7 6
Function
5
4
No color
Abnormal color patches
1 ! 2 3 1 3 4 PROGR +/ 5 2 +/ * 6 t 7 SELECT 8 i 9, qa t 0 8 qs T
Turn off or turn on the TV. Remote control sensor. Standby indicator. Wake Up indicator. Select program number. Adjust volume. Select TV or video input. Select the desired item. Headphone terminal. Video input terminal. Antenna input terminal. Monitor output terminal.
The 1 (standby) indicator on your TV flashes red several times after every three seconds. TV cabinet creaks.
· Changes in room temperature sometimes make the TV cabinet expand or contract, making a noise. This does not indicate a malfunction. · The TV's demagnetizing function is working. This does not indicate a malfunction.
A "boom" sound is heard when the TV is turned on.
* You can also use the 2 +/ buttons on the TV to work as the +/ buttons on the remote.
E Connecting optional components
Connecting to the video input terminal ( t )
TV front panel
(MONO)
H Remote control (KV-HA21N80/HA21N70)
MUTING DISPLAY POWER
L
R
qa qs qd qf
Audio/Video cable (not supplied) Camcorder
1
MTS VIDEO TV
Button 1 POWER
Function Turn off temporarily or turn on the TV. Display the TV program. Confirm input number Select channel number. Adjust volume. Select the desired items. Adjust items. Select picture mode. Preset channels manually.
See
2
1 4 7 2 5 8 0
VOL
3 6 9
ENT
CH
qg qh qj
JUMP
SOUND MODE
TV rear panel Video game equipment
R L(MONO)
SPACE SOUND
3 4 5 6 7 8 9 0
2 3 4 5 6 7 8 9 0
TV ENT CH +/ VOL +/ SELECT +/ PIC MODE ADD/ERASE
qk
WAKE UP
AUTO PROGRAM Preset channels automatically. Mute the sound. Display on-screen information. Select TV or video input. Input numbers. Jump to previous channel number. Set TV to turn on automatically. Set TV to turn off automatically. Select the cable TV.
K J J
Antenna cable (not supplied)
ql w; wa
qa MUTING qs DISPLAY qf VIDEO qg 0 9 qh JUMP
Timer operations
SLEEP
AUTO PROGRAM ADD/ ERASE
CABLE
Audio/Video cable (not supplied) VCR
TV
ql WAKE UP w; SLEEP wa CABLE
I I
Note · Do not connect video equipment to t (video input) at the front and the rear of your TV at the same time; otherwise the picture will not be displayed properly on the screen.
Connecting to the monitor output terminal ( T )
TV rear panel
Sound mode operations (KV-HA21N80) qj SOUND MODE Select sound mode.
qk SPACE SOUND qd MTS
Select space sound mode. Not function for your TV.
K K
R
L(MONO)
Audio/Video cable (not supplied)
Audio system
VCR
8
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
H Remote control
0 qa qs qd qf 1
Button 1 ?/1
(KV-HA21M80) Function Turn off temporarily or turn on the TV. Display the TV program. Jump to previous program number. Select program number. Adjust volume. Select the desired item. Select picture mode. Adjust items. Display on-screen information. Mute the sound. Select TV or video input. Input numbers. Set TV to turn on automatically. Set TV to turn off automatically. Select sound mode. Select space sound mode. Not function for your TV. See
I Setting the timers (KV-HA21M80)
You can turn on and off your TV by using the and buttons respectively.
Setting the Wake Up timer
\/1
2 2
1 4 7 SOUND MODE
a
1 4 7 SOUND MODE
2 5 8 0
2
3 6 9
JUMP
PROGR
3 JUMP 4 5 6 7 9 0
PROGR +/
2 5 8 0
2
3 6 9
JUMP
PROGR
until 1 Press screen.the desired period of time appears on the
WAKE UP TIMER:0H10M (After 10 minutes)
2 +/
SELECT PIC MODE +/
qg qh qj qk
SPACE SOUND
3 4 5 6 7 8 9
K
TV
SPACE SOUND
WAKE UP TIMER:OFF (No Wake Up timer)
WAKE UP TIMER:12H00M (After 12 hours)
qa % qd t qf 0 9, ÷
Timer operations
The Wake Up timer starts immediately after you have set it. the program 2 Selectto wake up to.number or video input you want \/1, or 3 PressTV to turnset the Sleep timer if you want the off automatically. The indicator on the TV lights up orange when the TV goes into standby mode.
ql
qj qk qg SOUND MODE ql SPACE SOUND qh A/B 8 x (red, green,
yellow, blue)
I I K K
TV
Setting the Sleep timer
Press until the desired period of time appears on the screen.
SLEEP TIMER:30M (After 30 minutes) SLEEP TIMER:60M (After 60 minutes)
Teletext operations (green label)
0 qs qd qh qj qk
Not function for your TV.
SLEEP TIMER:OFF (No Sleep timer)
SLEEP TIMER:90M (After 90 minutes)
The Sleep timer starts immediately after you have set it.
Notes · You can also cancel the Wake Up and Sleep timers by turning off the TV's main power. · If no buttons or controls are pressed for more than two hours after the TV is turned on using the Wake Up timer, the TV automatically goes into standby mode.
I Setting the timers (KV-HA21N80/HA21N70)
You can turn on and off your TV by using the WAKE UP and SLEEP buttons respectively.
MUTING DISPLAY POWER
J Presetting channels (KV-HA21N80/HA21N70)
You can automatically preset cable TV, VHF or UHF broadcast channels, or manually preset the channels to receive new channels or channels with a weak signal.
MUTING DISPLAY POWER
Setting the Wake Up timer
UP until the 1 Press WAKEthe screen. desired period of time appears on
WAKE UP TIMER:0H10M (After 10 minutes)
Presetting channels automatically
POWER
MTS
VIDEO
TV
ENT
MTS
VIDEO
TV
1 4 7
JUMP
SOUND MODE SPACE SOUND
2 5 8 0
VOL
3 6 9
ENT
CH
1
2 5 8 0
VOL
3 6 9
ENT
CH
Number buttons
4 7
JUMP
SOUND MODE
1 Press ! on the TV to turn on the TV. 2 Press CABLE to select "CABLE: ON". PROGRAM or 3 Press AUTO CHANNEL +on the remotethe press SELECT and on the TV at same
time for one to two seconds to preset the channels automatically.
WAKE UP SLEEP
WAKE UP
WAKE UP TIMER:OFF (No Wake Up timer)
WAKE UP TIMER:12H00M (After 12 hours)
SPACE SOUND
WAKE UP
SLEEP
AUTO PROGRAM ADD/ ERASE
CABLE
The Wake Up timer starts immediately after you have set it.
SLEEP
AUTO PROGRAM ADD/ ERASE
Presetting channels manually
number buttons to select 1 Press thenumber, then press ENT. the desired channel
CABLE AUTO PROGRAM
CABLE
2
TV
Select the program number or video input you want to wake up to.
TV
POWER, 3 PressTV to turnor set the Sleep timer if you want the off automatically. The WAKE UP indicator on the TV lights up orange when the TV goes into standby mode.
ADD/ERASE CH +/
2 Press ADD/ERASE.
"+" appears beside the channel number, indicating that presetting is complete.
Setting the Sleep timer
Press SLEEP until the desired period of time appears on the screen.
SLEEP TIMER:30M (After 30 minutes) SLEEP TIMER:60M (After 60 minutes)
Notes · If you select "CABLE: ON", you will be able to receive 125 cable TV channels. If there are no cable TV channels, you will receive VHF broadcast channels. · If you select "CABLE: OFF ", you will be able to receive 68 VHF or UHF broadcast channels only.
SLEEP TIMER:OFF (No Sleep timer)
SLEEP TIMER:90M (After 90 minutes)
The Sleep timer starts immediately after you have set it.
Notes · You can also cancel the Wake Up and Sleep timers by turning off the TV's main power. · If no buttons or controls are pressed for more than two hours after the TV is turned on using the Wake Up timer, the TV automatically goes into standby mode.
9
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
J Presetting channels (KV-HA21M80)
You can automatically preset up to 100 TV channels in numerical sequence from program number 1, or manually preset desired channels and channels that cannot be preset automatically.
Presetting channels (continued) To change the TV system setting
(KV-HA21M80)
If the picture or sound is abnormal when receiving programs through the 8 (antenna input) terminal (1) Press SELECT until "TV SYS" appears on the screen. (2) Press + or to select the appropriate TV system until the picture or sound quality is optimal.
B/G I D/K M
Presetting channels automatically from a specified program number
1 2 5 8 0
2
3 6 9
JUMP
PROGR
Number buttons
4 7 SOUND MODE
1
Press SELECT until "AUTO PROGRAM" appears on the screen.
2 Press + or once to enter the "AUTO PROGRAM" mode.
The on-screen display will start flashing. Press PROGR +/ or the number buttons 3 the desired program number appears onuntil the screen. Press + or to 4 automatically. start presetting channels
To change the color system setting
If the color is abnormal when receiving programs through the 8 (antenna input) terminal or the t (video input) terminal (1) Press SELECT until "COLOR SYS" appears on the screen. (2) Press + or to select the appropriate color system until the color is optimal.
AUTO PAL SECAM NTSC3.58 NTSC4.43
+ or
SPACE SOUND
PIC MODE SELECT PROGR +/
TV
To skip program numbers
(1) Press PROGR +/ or the number buttons until the unused or unwanted program number appears on the screen. (2) Press SELECT until "MANUAL PROGRAM" appears on the screen. (3) Press + or once to enter the "MANUAL PROGRAM" mode. (4) Press PIC MODE to skip the unused or unwanted program number. (5) Press SELECT to exit the "MANUAL PROGRAM" mode.
Note · To restore the skipped program number again, preset the channel automatically or manually.
Presetting channels manually
Press SELECT until "MANUAL 1 appears on the screen. PROGRAM" Press + or 2 PROGRAM"once to enter the "MANUAL mode.
3 4
Press PROGR +/ or the number buttons until the desired program number appears on the screen. Press + or until the desired channel picture appears on the screen.
To use the fine tuning function
The fine tuning (FINE) function may help to reduce the following problems: double images and lines moving across the TV screen. You can use the fine tuning function as below: (1) Select the program number you want to adjust. (2) Press SELECT until "MANUAL PROGRAM" appears on the screen. (3) Press + or once to enter the "MANUAL PROGRAM" mode. (4) Press to display "FINE" on the screen. (5) Press + or continuously until the above problems are minimized. The + or icon on the screen flashes while tuning. (6) Press SELECT to exit the "MANUAL PROGRAM" mode.
To 5 3 topreset other channels manually, repeat steps 4.
Presetting channels (continued) To change the color system setting
(KV-HA21N80/HA21N70)
K Customizing the picture and sound
(KV-HA21N80/HA21N70) You can customize the picture and sound by selecting the picture and sound modes or by adjusting its settings. You can change the sound effect by selecting the space sound mode.
If the color is abnormal when receiving programs through the video input terminal. (1) Press SELECT until "COLOR SYS" appears on the screen. (2) Press + or to select the appropriate color system until the color is optimal.
AUTO PAL NTSC3.58 NTSC4.43
MUTING DISPLAY POWER
Selecting the picture mode
Press PIC MODE to select the desired picture mode.
Select "DYNAMIC" "STANDARD" "SOFT" To view high contrast pictures. view normal contrast pictures. view mild pictures.
To skip program numbers
MTS VIDEO TV
(1) Press CH +/ until the unused or unwanted channel number appears on the screen. (2) Press ADD/ERASE to skip the unused or unwanted channel number. "" appears beside the channel number, indicating that disabling is complete.
SPACE SOUND
1 4 7
JUMP
SOUND MODE SPACE SOUND
2 5 8 0
VOL
3 6 9
ENT
CH
Note · To restore the skipped channel number again, preset the channel automatically or manually.
SELECT + or
WAKE UP
Selecting the sound mode
SLEEP
AUTO PROGRAM ADD/ ERASE
B KV-HA21N80 only
Press SOUND MODE to select the desired sound mode.
Select
TV
CABLE
PIC MODE
To listen to dynamic and clear sound that emphasizes the low and high sound. listen to sound that emphasizes vocals and background music. listen to soft sound.
"9 DYNAMIC"
"9 DRAMA" "9 SOFT"
Adjusting the picture and sound settings
1
Press SELECT until the desired setting appears. Each time you press SELECT, the setting item will change as follows:
PICTURE COLOR BRIGHT HUE
BALANCE
TREBLE
BASS
SHARP
2 3
Press + or to adjust the item. To adjust other items, repeat steps 1 to 2.
Notes · "BASS", "TREBLE" and "BALANCE" can be adjusted for KV-HA21N80 only. · "HUE" can be adjusted for the NTSC color system only. · Reducing "SHARP" can also reduce picture noise.
10
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
K Customizing the picture and sound
(KV-HA21M80) You can customize the picture and sound by selecting the picture and sound modes or by adjusting its settings. You can change the sound effect by selecting the space sound mode.
Selecting the picture mode
Press PIC MODE to select the desired picture mode.
1 4 7 SOUND MODE
2 5 8 0
2
3 6 9
JUMP
PROGR
Select "DYNAMIC" "STANDARD" "SOFT"
To view high contrast pictures. view normal contrast pictures. view mild pictures.
SOUND MODE SELECT + or SPACE SOUND PIC MODE
Selecting the sound mode
SPACE SOUND
Press SOUND MODE to select the desired sound mode.
Select
TV
To listen to dynamic and clear sound that emphasizes the low and high sound. listen to sound that emphasizes vocals and background music. listen to soft sound.
"9 DYNAMIC"
"9 DRAMA" "9 SOFT"
Adjusting the picture and sound settings
1
Press SELECT until the desired setting appears. Each time you press SELECT, the setting item will change as follows:
PICTURE COLOR BRIGHT HUE
BALANCE
TREBLE
BASS
SHARP
2 3
Press + or to adjust the item. To adjust other items, repeat steps 1 to 2.
Notes · "HUE" can be adjusted for the NTSC color system only. · Reducing "SHARP" can also reduce picture noise.
Customizing the picture and sound (continued)
Selecting the space sound mode
Press SPACE SOUND.
Select "ON" "OFF" To listen to monaural sound with a stereo-like effect. turn off space sound mode.
Note · You can also turn space sound on or off using the SELECT and + or buttons.
11
KV-HA21M80/HA21N70/HA21N80
SECTION 2 DISASSEMBLY
2-1. REAR COVER REMOVAL
2 Rear cover
RM-969
2-2. SPEAKER REMOVAL
2-3. CHASSIS ASSY REMOVAL
RM-968
2 Bracket Speaker
3 Speaker
1 Two screw (+BVTP 4 × 16)
1 Eight screws (+BVTP 4 × 16)
1 Two screws washer head (+P 4 × 16)
12
2-4. SERVICE POSITION
2-5. TERMINAL BRACKET REMOVAL
2-6. REPLACEMENT OF PARTS
For replacements of light guide,unscrew them, exchange with new parts and fix them with screws respectively.
Terminal board bracket
2-6-1. Replacement of Light Guide
One screw (+BVTP 4 × 16)
One screw (+BVTP 3 × 12)
2-6-2. Replacement of Power Button
1 Push the claw to direction of arrow and remove
Caution: Do not take out CRT support block while TV set in
standing position. Note: Undress necessary wires that creates tension while placing the chassis into Service Position.
A board
2 Spring compression 3 Power Button
2-7. PICTURE TUBE REMOVAL Note:
· Please make sure the TV set is not in standing position before removing necessary CRT support located on bottom right and left.
· REMOVAL OF ANODE-CAP
NOTE : After removing the anode, short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield or carbon paint on the CRT.
· REMOVING PROCEDURES
Holder DGC
a a
Demagnetic coil
!< Chassis assy 0 Two screws (washer head) (+P 4 × 16)
1 Turn up one side of the rubber cap in the direction indicated by the arrow a.
b
6 CV board 4 Tension spring 1 Two screws (Tapping 7+ Crown Washer)
b
5 Deflection yoke !¡ Speaker (15 × 6.5cm) 2 Two screws (Tapping 7+ Crown Washer)
2 Using a thumb pull up the rubber cap firmly in the direction indicated by the arrow b.
c
13
3 Anode cap Screw Location Beznet Hook Coating earth assy 9 Two screws (washer head) (+P 4 × 16)
Anode Button
3 When one side of the rubber cap is separated from the anode button, the anode-cap can be removed by turning up the rubber cap and pulling it up in the direction of the arrow c.
KV-HA21M80/HA21N70/HA21N80
CRT Support Block
7 Picture tube 8 Cushion
!¤ Speaker (15 × 6.5cm)
CRT Support Block
1 Do not damage the surface of anode-caps with sharp shaped objects. 2 Do not press the rubber too hard so as not to damage the inside of anode-cap. A metal fitting called the shatter-hook terminal is built into the rubber. 3 Do not turn the foot of rubber over too hard. The shatter-hook terminal will stick out or damage the rubber.
·
HOW TO HANDLE AN ANODE-CAP
RM-969 RM-968
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
SECTION 3 SET-UP ADJUSTMENTS
The following adjustments should be made when a complete realignment is required or a new picture tube is installed. These adjustments should be performed with rated power supply voltage unless otherwise noted. Controls and switches should be set as follows unless otherwise noted: PICTURE control ........................................................... normal BRIGHTNESS control ................................................... normal Perform the adjustments in the following order : 1. Beam Landing 2. Convergence 3. Focus 4. White Balance Note : Test Equipment Required. 1. Pattern Generator 2. Degausser 3. Oscilloscope
................................................................................................................................................................................................................................
Preparation : In order to reduce the influence of geomagnetism on the set's picture tube, face it east or west. Switch on the set's power and degauss with the degausser.
Purity control
3-1. BEAM LANDING
1. Input a white signal with the pattern generator. Contrast normal Brightness 2. Set the pattern generator raster signal to a green raster. 3. Move the deflection yoke to the rear and adjust with the purity control so that the green is at the center and the blue and the red take up equally sized areas on each side. (See Figures 3-1 through 3-4.) 4. Move the deflection yoke forward and adjust so that the entire screen is green. (See Figure 3-1.) 5. Switch the raster signal to blue, then to red and verify the condition. 6. When the position of the deflection yoke has been decided, fasten the deflection yoke with the screws and DY spacers. 7. If the beam does not land correctly in all the corners, use a magnet to adjust it. (See Figure 3-4.)
}
Fig. 3-2
Blue Red Green
Fig. 3-3
Purity control corrects this area.
b a
Disk magnets or rotatable disk magnets correct these areas (a-d).
c
d
Deflection yoke positioning corrects these areas. b
c a
Fig. 3-1
d
Fig. 3-4
14
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
3-2. CONVERGENCE
Preparation : · Before starting this adjustment, adjust the focus, horizontal size and vertical size. · Receive dot/hatch signal. · Pic mode: Soft. (1) Horizontal and Vertical Static Convergence
Center dot
R G B R G B
·
Operation of V. Stat magnet If the V. Stat magnet is moved in the "a" and "b" arrows, the red, green and blue dots move as shown below.
1
a B b b G R
a B G R
b
2
a
b
H. STAT VR
V.STAT Magnet
a
b
R
RV 702
G
B
B
G
R
3
C3 board
a b a R G b B B G
b
1. (Moving vertically), adjust the V.STAT magnet so that the red, green and blue dots are on top of each other at the center of the screen. 2. (Moving horizontally), adjust the H.STAT VR control so that the red, green and blue dots are on top of each other at the center of the screen. 3. If the H.STAT variable resistor cannot bring the red, green and blue dots together at the center of the screen, adjust the horizontal convergence with the H.STAT variable resistor and the V.STAT magnet in the manner given below. (In this case, the H.STAT variable resistor and the V.STAT magnet influence each other, so be sure to perform adjustments while tracking.)
R
4 BMC (Hexapole) Magnet.
If the red, green and blue dots are not balanced or aligned, then use the BMC magnet to adjust in the manner described below.
R G
B
R
G
B
R
G B
Purity
BMC
BMC (Hexapole) Purity
R G B R G B R G B
V.STAT
V.STAT
15
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
(2) Dynamic Convergence Adjustment Preparation: Before starting this adjustment, adjust the horizontal static convergence and the vertical static convergence
RB
B R
YCH
TLV
TLH
Insert
TLH YCH TLV XCV
Correction Plate to DY Pocket (Left or Right) VOL on DY VOL ON DY Adj core on DY
YCH Rotate TLV Rotate XCV Rotate
ON DY:
YCH
TLV
(3) Screen-corner Convergence
Fix a Permalloy assy corresponding to the misconverged areas
a
b
b a-d : screen-corner misconvergence
a
c
d
c d
a to d : Permalloy assembly
16
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
3-3. FOCUS ADJUSTMENT
FOCUS adjustment should be completed before W/B adjustment. 1. Receive digital monoscope pattern. 2. Set "Picture Mode" to "DYNAMIC". 3. Adjust focus VR so that the center of screen becomes just focus. 4. Change the receiving signal to white pattern and blue back. 5. Confirm magenta ring is not noticeable. Incase magenta is very obvious, adjust focus VR to take balance of magenta ring and focus.
2.a) WHITE BALANCE ADJUSTMENT 1) Set to Service Mode (Refer Section 4-1: ADJUSTMENTS WITH COMMANDER). 2) Input white raster signal. 3) Set 49 (ABL) and IF (VP2) service mode to 00. 4) Set Picture to DYNAMIC. 5) Select OB (RDR) with [1] and [4], and set the level to 25 with [3] and [6] for best white balance. 6) Select OC 'GDR' and OD 'BDR' with [1] and [4], and adjust the level with [3] and [6] for the best white balance. 7) Write into the memory by pressing [MUTING] then [0]. 8) Set back 49 'ABL' and IF 'VP2' service mode to original data. 2.b) SUB BRIGHT ADJUSTMENT 1) Set to service mode. 2) Set 49(ABL) and IF (VP2) service mode to 00 3) Input a staircase signal of black to white from the pattern generator. 4) BRIGHTNESS .... 50%. PICTURE ............ MINIMUM 5) Select OE 'SBR' with [1] and [4], and adjust OE 'SBR' level with [3] and [6] so that the second stripe from the right is dimly lit. 6) Write into the memory by pressing [MUTING] then [0]. 7) Set back 49 (ABL) and IF (VP2) service mode to original data.
FOCUS
SCREEN
White
FLYBACK TRANSFORMER (T503)
second from the right
3-4. G2 (SCREEN) AND WHITE BALANCE ADJUSTMENTS 1. G2 (SCREEN) ADJUSTMENT
Black
1) Set the PICTURE to normal. 2) Put to VIDEO input mode without signals. 3) Connect R, G and B of the C board cathode to the oscilloscope. 4) Adjust BRIGHTNESS to obtain the cathode voltage to the value below. 5) Adjust G2 (screen) on the FBT until picture shows the point before cut off.
Cathode setting voltage: 175 V ± 2 (VDC)
0V
17
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
SECTION 4 CIRCUIT ADJUSTMENTS
4-1. ADJUSTMENT WITH COMMANDER
Service adjustments to this model can be performed using the supplied Remote Commander RM-968 and RM-969. e. OTHER FUNCTION VIA REMOTE COMMANDER 7, All the data becomes the values in memory. 8, 5, 2, All user control goes to the standard state. Service data initialization (Be sure not to use usually.) Copy and write all data. Write 50Hz adjustment data to 60Hz or vice versa.
a. ENTERING SERVICE MODE With the unit on standby
n [DISPLAY] n 5 n VOL (+) n [POWER]
[MUTE], -
This operation sequence puts the unit into service mode. The screen display is :
Item Adjustment Item No Data
4-2. ADJUSTMENT METHOD
Item Number 00 HPS This explanation uses H Shift as an example. 1. Select "00 HPS" with the 1 and 4 buttons. 2. Raise/lower the data with the 3 and 6 buttons. 3. Select the optimum state. (The standard is 1F for PAL reception.) 4. Write with the [MUTING] button. (The display changes to WRITE.) 5. Execute the writing with the - button. (The WRITE display will be changed to red color while excuting, and back to SERVICE.) Example on screen display :00 HPS 33 SERVICE 50 GREEN
Mode
Depends on signal
00
HPS
33 00
SERVICE 000A
50
PAL,SECAM:50 NTSC :60
080S 1.6C (KV-HA21M80) 083S (KV-HA21N70/ HA21N80)
Total Power-On time (hours)
Software version
Suffix No (OEM Code)
b. METHOD OF CANCELLATION FROM SERVICE MODE Set the standby condition (Press [POWER] button on the commander), then press [POWER] button again, hereupon it becomes TV mode. c. METHOD OF WRITE INTO MEMORY 1) Set to Service Mode. 2) Press [1] (UP) and [4] (DOWN), to select the adjustment. 4) Press [MUTING] button to indicate WRITE on the screen. 5) Press [0] button to write into memory. d. MEMORY WRITE CONFIRMATION METHOD 1) After adjustment, pull out the plug from AC outlet, and then plug into AC outlet again. 2) Turn the power switch ON and set to Service Mode. 3) Call the adjusted items again to confirm adjustments were made. 1, 4 3, 6 Select the adjustment item. Raise/lower the data value. Writes. Executes the writing.
Adjusted with [3] and [6] buttons. 00 HPS 33 WRITE 50 GREEN
Write with [MUTING] 00 HPS 33 WRITE 50 RED The WRITE display then the display returns to green SERVICE
Write executed with [0]
Use the same method for all Items. Use 1 and 4 to select the adjustment item, use 3 and 6 to adjust, write with [MUTING], then execute the write with -. Note : 1. In [WRITE], the data for all items are written into memory together. 2. For adjustment items that have different standard data between 50Hz or 60Hz, be sure to use the respective input signal after adjustment.
[MUTING]
-
18
Adjustment Item Table (KV-HA21M80)
Function Table & Note Register No. (Bit Range) Device Name (Slave Address) TDA8843/44(8A) 03 (5-0) 04 (5-0) 05 (5-0) 06 (5-0) 07 (5-0) 08 (5-0) 09 (5-0) 0A (5-0) 0B (5-0) 16 (5-0) 50/60Hz 17 (5-0) 0C (5-0) 0D (5-0) 0E (5-0) 10 (5-0) TV/Video/Teletext 12 (5-0) 12 (5-0) TV/Video TV/Video 50/60Hz 50/60Hz TV/Video/Teletext TV/Video/Teletext TV/Video/Teletext 02 (5-0) 0F (5-0) 11 (5-0) 11 (5-0) 00 (3-2) 13 (5-0) 13 (6) 01 (7-6) 01 (5) 01 (3) TV/Video/Teletext TV/Video/Teletext PAL/NTSC/SECAM 10 (6) 10 (7) 1A (7-4) Dynamic/Others Dynamic/Others Dynamic/Others
Functionality
Init.
Range
No. 50/60Hz 50/60Hz 50/60Hz 50/60Hz 50/60Hz 50/60Hz 50/60Hz 50/60Hz 50/60Hz
Name
00
HPS
2A
3F
H Position
01
HSZ
1F
3F
H Size
02
PAP
1F
3F
Pin Amplitude
03
CPN
1F
3F
Corner Pin
04
TLT
1F
3F
Tilt
05
VSL
26
3F
V Slope
06
VAP
0F
3F
V Amplitude
07
SCO
0F
3F
S Correction
08
VPS
1F
3F
V Shift
09
VZM
19
3F
Vertical Zoom
0A
VSC
1F
3F
Vertical Scroll
0B
RDR
1F
3F
R Drive
0C
GDR
25
3F
G Drive
0D
BDR
25
3F
B Drive
0E
SBR
58
7F
Sub Brightness
0F
PMX
20
3F
Picture Maximum Data
10
PMI
04
3F
Picture Minimum Data
11
SHU
07
0F
Sub Hue
12
SSH
01
03
Sub Sharpness
13
SC1
20
3F
Sub Color Lower
14
SC2
08
3F
Sub Color Higher
15
FO
00
03
01 Time Constant
16
AGT
00
3F
AGC Take Over
19
17
VSW
00
01
Video Mute Switch
18
FOR
03
03
Forced Field Frequency
19
DL
00
01
De-interlace
1A
POC
00
01
Fixed 01 Synchro. Mode
1B
COR
01
01
Noise Coring
1C
RBL
00
01
RGB Blanking
1D
YDL
0A
0F
Y-Delay
1E
VP1
00
FF
Extra Bits (see specified pages)
1F
VP2
01
FF
Extra Bits (see specified pages)
20
VP3
0F
FF
Extra Bits (see specified pages) MSP3417G(80)
21
WST
15
FF
W/G Stereo Threshold
22
WBT
EC
FF
W/G Bilingual Threshold
23
WLL
05
FF
W/G Monaural Threshold
24
WAC
01
0F
W/G Agreement Count
25
WDL
30
FF
W/G Search Delay
26
NDL
20
FF
NICAM Search Delay
RM-969
27
SDL
10
FF
Stereo Status Read Delay BB (7) BB (6-1) BB (9) 83 (5) 0E (7-0) 0E (7-0) 0E (7-0) 0E (7-0)
28
AGC
01
01
AGC Switch auto/constant
29
REL
28
3F
AGC Gain at Constant Mode
2A
CRM
00
01
Carrier Muting on/off
2B
ACO
01
01
Audio Clock-out on/off
2C
FP
1B
7F
FM Prescale for B/G, I, D/K
2D
FPM
32
7F
FM Prescale for M
2E
FH
36
7F
FM Prescale for HDEV (non-M)
2F
FHM
65
7F
FM Prescale for HDEV (M)
KV-HA21M80/HA21N70/HA21N80
RM-968
Adjustment Item Table
Function Table & Note Register No. (Bit Range) Device Name (Slave Address) 0E (7-0) 10 (7-0) 21 (10-3) 00 (14-8) M System/non-M/Video 01 (3-0) TDA7438(88) 02 (5-0) M System only
Functionality
Init.
Range
No.
Name
RM-969
30
WGP
1C
7F
W/G Prescale
31
NIP
7F
7F
NICAM Prescale
32
ERR
50
FF
Auto FM Switch Threshold
33
VOL
6D
7F
DFP Volume Maximum
34
ING
00
0F
Input Gain
35
VOM
00
3F
Volume Output Gain
36
BCS
01
03
Bass Center Shift
37
TCS
02
03
Treble Center Shift SAA5264(58)
KV-HA21M80/HA21N70/HA21N80
RM-968
38
TXH
2A
FF
Horizontal Display Position
39
TXV
27
3F
Vertical Display Position (line offset from V-sync)
3A
THD
00
7F
H-sync Active Edge Shift
3B 00 : Positive, 01 : Negative 00 : Positive, 01 : Negative
TVD
3F
7F
V-sync Active Edge Shift
3C
HPL
01
01
H-sync Polarity Configuration
3D
VPL
01
01
V-sync Polarity Configuration
3E
FPL
01
01
Field Polarity Configuration
00 : V-sync second half line, 01 : V-sync first half line 00 : Auto, 01 : Default, 02 : Fastext, 03 : Top Mode
3F
FMD
00
03
Force Mode
40
TBR
08
0F
Set Teletext RGB Brightness
41
NOP
01
0F
National Option Table Configuration
42
TCH
01
03
Twisted Character Set Configuration Other Control
20
00 : B/G, 01 : I, 02 : D/K, 03 : M
43
BKP
00
3F
Picture Data at Blanking OFF
44
ODL
10
FF
Power ON Delay
45
OSH
0A
3F
OSD H Position
46
TSY
00
03
TV System at Auto Preset
47
DKS
01
01
D/K Stereo enable/disable
48
MUT
00
01
Muting on/off at No Sync
49
ABL
01
01
Bright ABL Switch
4A
SCM
01
01
SECAM Trap active/inactive
4B
SLS
01
01
Activate SL.OR.IFI Sync
4C
SSV
02
07
Space Sound Volume Step Up
4D
VPW
35
7F
Timer of Video Processor start up wait
4E
OP1
2F
FF
Optional Flags 0 (see specified pages)
4F
OP2
0F
FF
Optional Flags 1 (see specified pages)
50
OP3
00
FF
Optional Flags 2 (see specified pages)
NOTE · Standard data listed on the Adjustment Item Table are reference values, therefore it may be different for each model and for each mode. · Note for Different Data Those are the standard data values written on the microprocessor. Therefore, the data values of the modes and stored respectively in the memory. In case of a device replacement, adjustment by rewriting the data value is necessary for some items.
Adjustment Item Table (KV-HA21N80/N70)
Function Table & Note Register No. (Bit Range) Device Name (Slave Address) TDA8843/44(8A) 03 (5-0) 04 (5-0) 05 (5-0) 06 (5-0) 07 (5-0) 08 (5-0) 09 (5-0) 0A (5-0) 0B (5-0) 16 (5-0) 50/60Hz 17 (5-0) 0C (5-0) 0D (5-0) 0E (5-0) 10 (5-0) TV/Video/Teletext 12 (5-0) 12 (5-0) TV/Video TV/Video 50/60Hz 50/60Hz TV/Video/Teletext TV/Video/Teletext TV/Video/Teletext 02 (5-0) 0F (5-0) 11 (5-0) 11 (5-0) 00 (3-2) 13 (5-0) 13 (6) 01 (7-6) 01 (5) 01 (3) TV/Video/Teletext TV/Video/Teletext PAL/NTSC/SECAM 10 (6) 10 (7) 1A (7-4) Dynamic/Others Dynamic/Others Dynamic/Others
Functionality
Init.
Range
No. 50/60Hz 50/60Hz 50/60Hz 50/60Hz 50/60Hz 50/60Hz 50/60Hz 50/60Hz 50/60Hz
Name
00
HPS
24
3F
H Shift
01
HSZ
23
3F
H Size
02
PAP
21
3F
Pin Amplitude
03
CPN
29
3F
Corner Pin
04
TLT
20
3F
Tilt
05
VSL
20
3F
V Slope
06
VAP
1D
3F
V Amplitude
07
SCO
20
3F
S Correction
08
VPS
20
3F
V Shift
09
VZM
19
3F
Vertical Zoom
0A
VSC
20
3F
Vertical Scroll
0B
RDR
25
3F
R Drive
0C
GDR
25
3F
G Drive
0D
BDR
25
3F
B Drive
0E
SBR
4B
7F
Sub Brightness
0F
PMX
27
3F
Picture Maximum Data
10
PMI
05
3F
Picture Minimum Data
11
SHU
05
0F
Sub Hue
12
SSH
01
03
Sub Sharpness
13
SC1
1F
3F
Sub Color Lower
14
SC2
0B
3F
Sub Color Higher
15
FO
00
03
01 Time Constant
16
AGT
30
3F
AGC Take Over
17
VSW
00
01
Video Mute Switch
18
FOR
00
03
Forced Field Frequency
21
M System/non-M/Video M System only 00: B/G, 01: I, 02: D/K, 03: M
19
DL
00
01
De-interlace
1A
POC
00
01
Fixed 01 Synchro. Mode
1B
COR
00
01
Noise Coring
1C
RBL
00
01
RGB Blanking
1D
YDL
08
0F
Y-Delay
1E
VP1
00
FF
Extra Bits (see specified pages)
1F
VP2
01
FF
Extra Bits (see specified pages)
20
VP3
08
FF
Extra Bits (see specified pages) 01 (3-0) 02 (5-0) TDA7438 (88)
21
ING
00
0F
Input Gain
22
VOM
01
3F
Volume Output Gain
23
BCS
01
03
Bass Center Shift
24
TCS
01
03
Treble Center Shift Other Control
25
BKP
00
3F
Picture Data at Blanking OFF
26
ODL
10
FF
Power ON Delay
27
OSH
0A
3F
OSD H Position
28
TSY
00
03
TV System at Auto Preset
29
DKS
01
01
D/K Stereo enable/disable
2A
MUT
00
01
Muting on/off at No Sync
RM-969
2B
ABL
00
01
Bright ABL Switch
2C
SCM
00
01
SECAM Trap active/inactive
2D
SLS
00
01
Activate SL. OR. IFI Sync
2E
SSV
02
07
Space Sound Volume Step Up
2F
VPW
28
7F
Timer of Video Processor start up wait
KV-HA21M80/HA21N70/HA21N80
RM-968
Adjustment Item Table (KV-HA21N80/N70)
Function Table & Note Register No. (Bit Range) Device Name (Slave Address)
Functionality
Init.
Range
No.
Name
RM-969
30
SCA
01
01
Shipping Condition of Cable on/off
31
SCH
01
7F
Shipping Condition of Channel Number
32
OP1
2F
FF
Option Flag 0 (see below)
33
OP2
0F
FF
Option Flag 1 (see below)
34
OP3
00
FF
Option Flag 2 (see below)
KV-HA21M80/HA21N70/HA21N80
RM-968
NOTE · Standard data listed on the Adjustment Item Table are reference values, therefore it may be different for each model and for each mode. · Note for Different Data Those are the standard data values written on the microprocessor. Therefore, the data values of the modes and stored respectively in the memory. In case of a device replacement, adjustment by rewriting the data value is necessary for some items.
22
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
ITEM INFORMATION (KV-HA21M80) No. 1E VP1 Item KV-HA21M80 BCO OSO SBL HBL FCO FFI 0 0 BCO 0 OSO 0 SBL 0 HBL 0 FCO 0 00(4) 18(7) 0B(7) 02(7) 1B(0) 1A(1) FFI 0
Switch-on behaviour 1=Switch -on of picture via internal delay 0=Without delay 1=Switch off in vertical overscan 0=Switch-off undefind Service blanking 1= on 0= off RGB Blanking Mode 1 = wide blanking, 0 = normal blanking Forced Color-on 1=no colour killer 0=normal colour killer function Fast filler IF-PLL 1=increased time constant 0=normal time constant
No. 1F VP2 Item KV-HA21M80 MAT DS DSA EBS BLS BKS 0 0 MAT 0 DS 0 DSA 0 EBS 0 BLS 0 0E(7) 1A(3) 1A(2) 1A(0) 18(4) 18(3) BKS 1
PAL-SECAM-/NTSC Matrix 1 =PAL matrix, 0=adapted to standard Dynamic skin control on/off 1= on 0= off Dynamic skin control angle 1=correction angle 117 degrees 0=correction angle 123 degrees Extended Blue Stretch 1= on 0= off Blue stretch 1= on 0= off Black stretch 1= on 0= off
No. 20 VP3 Item KV-HA21M80 BB AKB BPS CB ACL BB 0 AKB 0 BPS 0 CB 0 ACL 1 CL2 0 CL1 0 18(0) 02(6) 19(6) 18(5) 19(5) CL0 0
Blue back when no video signal is identified 1= on 0= off Black current stabilisation 1=not active 0=active Bypass of chroma base-band delay line 1=bypassed 0=active Chroma bandpass centre frequency 1= 1.1x Fsc 0=Fsc Automatic colour limiting 1= active 0= not active CL2 0 0 0 0 1 1 1 1 CL1 0 0 1 1 0 0 1 1 CL0 0 1 0 1 0 1 0 1 Cathode Drive amplitude 57V 63V 70V 77V 84V 91V 99V 107V
No. 4E OP1 Item KV-HA21M80 HA ME Vol AV Input COMB (for NTSC model) HA ME VOL 0 0 AV Input 1 COMB 0 B/G 1 I 1 D/K 1 M 1
Tone controller Volume curve setting. 00 = no AV Input model 10 = 2 AV Input model
1 = for HA(ME), 0 = for HA(GE)
01 = 1 AV Input model 11 = Not available
1 = Enable external comb filter, 0 =Disable external comb filter
Other optional function will be enabled if the corresponding bit is set to 1.
23
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
No. 4F OP2 Item KV-HA21M80 No NICAM US ST 1 V-Curve (for monaural model) XTAL SEL No NICAM 0 US ST 0 HDEV 0 I V-Curve 0 1 XTAL SEL 1 SECAM 1 2nd Lang. 1
1 = NICAM search is disable in any TV system, 0 = NICAM search operates (Reserved for NTSC model) 1 = using common volume curve for every mode and every TV system 0 = another volume curve available for video mode and M system 00 = only 4.43 XTAL 10 = not used 01 = only 3.58 XTAL 11 = both 4.43 and 3.58 XTAL
Other optional function will be enabled if the corresponding bit is set to 1.
No. 50 OP3 Item KV-HA21M80 Pict Rot. 0 Auto TV Sys. 0 No Bal. 0 SPC SOUND 0 Korean ST 0 VM 0 H.K. Bil. 0 Thai Bil. 0
No Bal. (for AV stereo model) SPC SOUND Korean ST H.K. Bil. (for monaural model)
1 = no balance in analog select items, 0 = balance included
1 = Space Sound available, 0 = not available (Reserved for NTSC model) 1 = NICAM bilingual available (No NICAM stereo), 0 = not available
Other optional function will be enable if the corresponding bit is set to 1.
24
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
ITEM INFORMATION (KV-HA21N80/N70) No. 1E VP1 Item KV-HA21N70 KV-HA21N80 BCO OSO SBL HBL FCO FFI No. 1F VP2 Item KV-HA21N70 KV-HA21N80 MAT DS DSA EBS BLS BKS No. 20 VP3 Item KV-HA21N70 KV-HA21N80 BB AKB BPS CB ACL BB 0 0 AKB 0 0 BPS 0 0 CB 0 0 ACL 1 1 CL2 0 0 CL1 0 0 18(0) 02(6) 19(6) 18(5) 19(5) CL0 0 0 0 0 0 0 MAT 0 0 DS 0 0 DSA 0 0 EBS 0 0 BLS 0 0 0E(7) 1A(3) 1A(2) 1A(0) 18(4) 18(3) BKS 1 1 0 0 0 0 BCO 0 0 OSO 0 0 SBL 0 0 HBL 0 0 FCO 0 0 00(4) 18(7) 0B(7) 02(7) 1B(0) 1A(1) FFI 0 0
Switch-on behaviour 1=Switch -on of picture via internal delay 0=Without delay 1=Switch off in vertical overscan 0=Switch-off undefind Service blanking 1= on 0= off RGB Blanking Mode 1 = wide blanking, 0 = normal blanking Forced Color-on 1=no colour killer 0=normal colour killer function Fast filler IF-PLL 1=increased time constant 0=normal time constant
PAL-SECAM-/NTSC Matrix 1 =PAL matrix, 0=adapted to standard Dynamic skin control on/off 1= on 0= off Dynamic skin control angle 1=correction angle 117 degrees 0=correction angle 123 degrees Extended Blue Stretch 1= on 0= off Blue stretch 1= on 0= off Black stretch 1= on 0= off
Blue back when no video signal is identified 1= on 0= off Black current stabilisation 1=not active 0=active Bypass of chroma base-band delay line 1=bypassed 0=active Chroma bandpass centre frequency 1= 1.1x Fsc 0=Fsc Automatic colour limiting 1= active 0= not active CL2 0 0 0 0 1 1 1 1 CL1 0 0 1 1 0 0 1 1 CL0 0 1 0 1 0 1 0 1 Cathode Drive amplitude 57V 63V 70V 77V 84V 91V 99V 107V
No. 32 OP1 Item KV-HA21N80 KV-HA21N70 HA ME Vol AV Input COMB (for NTSC model) HA ME VOL 0 0 0 0 AV Input 1 1 COMB 0 0 B/G 1 1 I 1 1 D/K 1 1 M 1 1
Tone controller Volume curve setting. 00 = no AV Input model 10 = 2 AV Input model
1 = for HA(ME), 0 = for HA(GE)
01 = 1 AV Input model 11 = Not available
1 = Enable external comb filter, 0 =Disable external comb filter
Other optional function will be enabled if the corresponding bit is set to 1.
25
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
No. 33 OP2 Item KV-HA21N70 KV-HA21N80 No NICAM (Multi Model Only) US ST 1 V-Curve (for monaural model) XTAL SEL No NICAM 0 0 US ST 0 0 HDEV 0 0 I V-Curve 0 0 1 1 XTAL SEL 1 1 SECAM 1 1 2nd Lang. 1 1
1 = NICAM search is disable in any TV system, 0 = NICAM search operates
(Reserved for NTSC model) 1 = using common volume curve for every mode and every TV system 0 = another volume curve available for video mode and M system 00 = only 4.43 XTAL 10 = not used 01 = only 3.58 XTAL 11 = both 4.43 and 3.58 XTAL
Other optional function will be enabled if the corresponding bit is set to 1.
No. 34 OP3 Item KV-HA21N70 KV-HA21N80 Pict Rot. 0 0 Auto TV Sys. 0 0 No Bal. 0 0 SPC SOUND 0 0 Korean ST 0 0 VM 0 0 H.K. Bil. 0 0 Thai Bil. 0 0
No Bal. (for AV stereo model) SPC SOUND Korean ST H.K. Bil. (Multi Model Only) Thai. Bil. (Multi Model Only)
1 = no balance in analog select items, 0 = balance included
1 = Space Sound available, 0 = not available (Reserved for NTSC model) 1 = NICAM bilingual available (No NICAM stereo), 0 = not available
Other optional function will be enable if the corresponding bit is set to 1.
26
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
OPERATION GUIDE SERVICE MODE How to set up new NVM (or initialize already written one) (1) AC ON (2) Enter Service Mode - describing below how to enter (3) Push the commander button "5" and "0" sequentially (only set initial data into RAM, but not write them into NVM yet) (4) Push the commander button "2" and "0" sequentially (copy the data into all NVM area - all wide modes and 50/60Hz respectively) (5) Push the commander button "8" and "0" sequentially (initialize user data, select program 1 and exit Service Mode) (6) Select TV system and execute Auto Preset How to enter Service Mode · At power ON, push the commander button "test" and "TV ON" sequentially · At stand-by, push the commander button "display", "5", "vol +" and "power" sequentially How to exit Service Mode · Push the commander button "other ON" or power (AC) OFF How to increment/decrement items and data · Items : push the commander button "1" / "4" · Data : push the commander button "3" / "6" (not write into NVM) Other operations · Write data into NVM - push the commander button "mute" and "0" sequentially · Read data from NVM - push the commander button "7" and "0" sequentially · Copy 50Hz data into 60Hz area - push the commander button "display" and "0" sequentially SELF DIAGNOSIS MODE How to enter Self Diagnosis Mode · At stand-by, push the commander button "display", "5", "vol-" and "power" sequentially How to exit Self Diagnosis Mode · Push the commander button "other ON" or power (AC) OFF Other operations · Clear data and Write into NVM - push the commander button "8" and "0" sequentially HOTEL TV MODE How to enter Hotel TV Mode ON stage · At stand-by, push the commander button "display", "MUTE", "vol +" and "power" sequentially · The Hotel TV setup display, where the maximum level of the volume can be applied (=35 or above) · Write data into NVM - push the commander button "mute" and "0" sequentially How to enter Hotel TV Mode OFF stage · At stand-by, push the commander button "display", "MUTE", "vol -" and "power" sequentially · Write data into NVM - push the commander button "mute" and "0" sequentially Modification Note (KV-HA21M80) The item including the new addition is yellow. 1. The flag was added to bit 7 of OP1. This is the flag which chooses the volume curve used by HA (ME) model. (V2. IC). Modification Note (KV-HA21N80/HA21N70) The item including the new addition is yellow.
27
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
4-3. PICTURE QUALITY ADJUSTMENT SUB COLOR ADJUSTMENT
1. Select Video. 2. Input a PAL color-bar. 3. Set to the following condition: PICTURE 100%, BRIGHTNESS 50%, COLOR 50% 4. Connect an oscilloscope to pin 1 (B OUT) of CN300, A board. 5. Set to Service Mode and select 13 `SC1' with 1 and 4 of the commander then adjust to VB2=VB3=VB4 with 3 and 6. 6. Press [MUTING] ¡ - of the commander to write the data. 7. Adjust 13 `SC1' as step 2 to 5 when receiving NTSC color-bar.
VB1 VB2 VB3 VB4
4-4. DEFLECTION ADJUSTMENT
NORMAL MODE (50Hz) 1. Set to Service mode. 2. Input PAL color bar. 3. Using the 1 and 4 button, select category GEO (Service Mode). 4. Raise/lower the data using the 3 and 6 buttons. Select and adjust the following items to obtain optimum image. Service Item GEO : 00 01 02 03 04 05 06 07 08 HPS HSZ PAP CPN TLT VSL VAP SCO VPS H POSITION H SIZE PIN AMPLITUDE CORNER PIN TILT V SLOPE VERTICAL AMPLITUDE S CORRECTION V SHIFT
VB2 = VB3 = VB4
VB2 = VB3 = VB4 (Difference is within 70mV)
SUB HUE ADJUSTMENT
1. Select Video. 2. Input a NTSC 3.58, color-bar into Video/TV mode. 3. Set the following condition: PICTURE 100%, BRIGHTNESS 50%, COLOR 50% 4. Connect an oscilloscope to pin 1 (B OUT) of CN300, A board. 5. Select 11"SHU" with 1 and 4 of the commander by setting to Service Mode and adjust to VB1=VB2=VB3=VB4 with 3 and 6 .
VB1 VB3 VB2 VB4
NORMAL MODE (60Hz) 5. Input 525/60Hz signal. 6. Using the 1 and 4 buttons select category GEO (Service Mode). 7. Select and adjust the following items to obtain obtimum image. Raise/lower the data with the 3 and 6 buttons. Service Item GEO : 00 01 02 03 04 05 06 07 08 HPS HSZ PAP CPN TLT VSL VAP SCO VPS H POSITION H SIZE PIN AMPLITUDE CORNER PIN TILT V SLOPE VERTICAL AMPLITUDE S CORRECTION V SHIFT
4-5. A BOARD ADJUSTMENT AFTER IC003 (MEMORY) REPLACEMENT
VB1 = VB2 = VB3 = VB4
6. 7. 8. 9.
The highest level of VB1,VB2,VB3,VB4 must be aligned at the same line. Ideal difference level between VB2 and VB3 should be within ± 110mV. Press [MUTING] ¡ - of the commander to write the data. Select TV channel with NTSC 3.58 and repeat 3 to 5. Press [MUTING] ¡ - of the commander to write the data. Single system model with NTSC 4.43, select TV channel with NTSC 4.43 and repeat 3 to 5.
1. 2. 3.
4.
5.
Enter to Service Mode. Press commander buttons 5 and - (Data Initialize), and 2 and - (Data Copy) to initialize the data. Call each item number and check if the respective screen shows the normal picture. In cases where items are not well adjusted, rectify the fine adjustment. Write the data per each item number ([MUTING] +-). Select item numbers 4E `OP0', 4F `OP1', 50 `OP2' and respectively set the bit per model with command buttons 3 and 6 . Press commander buttons 8 and - (Test Normal) to return to the data that was set on the shipment from the factory. (This will also cancel Service Mode.)
28
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
4-6. PICTURE DISTORTION ADJUSTMENT
Item Number 00 08
00 HPS (H POSITION)
01
HSZ (H SIZE)
02
PAP (PIN AMPLITUDE)
03
CPN (CORNER PIN)
04
TLT (TILT)
05
VSL (V SLOPE)
06
VAP (VERTICAL AMPLITUDE)
07
SCO (S CORRECTION)
08
VPS (V SHIFT)
29
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
SECTION 5 DIAGRAMS
5-1. BLOCK DIAGRAM
A
POWER SUPPLY, DEFLECTION, AUDIO AND VIDEO PROCESSING, AUDIO/VIDEO INPUT/OUTPUT, MICROCOMPUTER
Q405 BUFFER Q404 BUFFER
J400 VIDEO
MONITOR OUT
CV (RGB AMPLIFIER)
Q712 R DRIVE Q706 R AMP
L (MONO) Q403 BUFFER R Q402 R MUTE Q401 L MUTE
VIDEO VIDEO IN 1 (FRONT) L (MONO) R
Q709 IK LIMIT J701 Q711 Q705 G AMP 10 9 8 6 Q708 IK LIMIT H2 200V H1 1 5 RV702 G2
6 VIDEO VIDEO IN 1 (REAR) L (MONO) R 7 L IN
8 L OUT 27 5 L IN L OUT 7 J200 HEADPHONE
G DRIVE
3 CN701
V901 PICTURE TUBE
IC201 TONE CONT
9 R IN 2 TVR 3 TVL R OUT 26 MUTE 8
IC203 AUDIO OUT
2 R IN R OUT 12 CN200
Q710 B DRIVE
Q704 B AMP
AUDIO IN L AUDIO IN R CN301 6 2 L IF
4 L1 MON OUT L 6 1 R1 MON OUT R 8 TVR SDA SCL 22 21 2
SPACE SOUND
SP L SP R
Q707 IK LIMIT
MONITOR OUT L MONITOR OUT R R G B IK CN300 3 2 1 5 CN703 3 2 1 5 R G B IK +9V
Q101 BUFFER
Q103, 104 TU100 Q102 IF AGC TU U/V L/H IF BUFFER SWF100 Q306, 308 DK SW FILTER +9V Q304 CT365,CF365 SYNC FILTER Q300 CT360,CF360 SYNC FILTER Q303 CT345,CF345 SYNC FILTER Q305 CT355,CF355 SYNC FILTER +B +11V IC604 +9V REG +18V 17 16 15 14 13 11 D601 T601 2 3 4 5 8 7 OVP 1 DRIVE 2 OSC 7 6 LATCH F601 2 T600 S600 1 AC IN
CN601
IC001 SYSTEM CONTROLLER
59 L/H 60 U/V 38 VC MUTE 11 R 51 G 50 B 49 Q315 G BUFFER 17 55 48 49 54
Q307, 310 I SW
IC601 REG SW
9
Q105 Q106 VC FILTER VC AMP Q100 BUFFER
IC301 Y/C JUNGLE
Q311, 313 CVBS IN DEEMP IF IN IF IN AGC R OUT G OUT B OUT IK 21 20 19 18 M SW
IC003 MEMORY
IICLK1 55 IIDAT1 53 6 CLK 5 DAT
Q309, 312 B/G SW Q301, 303 SYNC FILTER
8
CH + S006
CH S003
41 KEY1 40 KEY2
IF OUT 6 41 SSCP/FBT
IC002 +5V REG
VOL + S001 VOL S005 +9V OUT 5 1 IN RESET 4 +5V 36 RESET
HSYNC 47 HSYNC 25
+5V
CN302 1 6 3 4
TV/VIDEO S004 R M-SW SDA SCL
SEL S002 35 EXTAL X101 +5V D001 TIMER 34 XTAL Q001 LED DRIVE 3 TIMER D/K I M B/G 2 3 4 1 SIRCS 26
IC004 IR DET
1 2 X358 3.58MHz 34 3.58 X443 4.43MHz
CVBS IN INT SIF IN R-Y OUT B-Y OUT
13 1 30 29 Q319
T503 FBT
2 4 1 7 9 10 Q004 H PROT Q800 H DRIVE FV T801 5
PH600 PHOTO COUPLER
3 6 11 4
IC602 ERROR AMP
1 2 2 1 CN500 200V 1000V H1 D804, D851 DUMPER Q801 H OUT H+ H+ 1 2 DY1 H+ H HDY H H V 3 4 5 VDY V+ V 1 5
CVBS OUT 38
BUFFER +135V 13V
CN001 1 2 3 4 R G B BLK
Q002 LED DRIVE NICAM ST/BY 6 RESP/ NICAM
35 4.43/3.58 HOR OUT EAST/WEST VERT POS VERT NEG 23 24 25 26 R IN G IN B IN IN SW
40 45 46 47
+15V
6 7
SDA SCL
54 IIDAT0 BRT ABL 56 IICLK0 VPULSE VSYNC HDSW 12 BLK
42 17 48 27
B-Y 31 R-Y 32 7 SCL 8 SDA 13
IC850, IC851 PIN CONT
3 1
Q802 PIN OUT
L802
S801 H SENT
ABL 22 EHTX-RAY 50
D1505
IC551 V OUT
D591 Q561 X RAY D561 +135V HV 7 1 5 V+
DY ASS'Y
6
2
CN002 VP
3 6
HP VIDEO 4
30
31
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
5-2. CIRCUIT BOARDS LOCATION
CV BOARD
A BOARD
32
KV-HA21M80/HA21N70/HA21N80
RM-969 RM-968
5-3. SCHEMATIC DIAGRAM
Note: · All capacitors are in µF unless otherwise noted. · All electrolytic capacitors are rated at 50V unless otherwise noted. · All resistors are in ohms. k = 1000, M = 1000k · Indication of resistance which does not have rating electrical power is as follows. Pitch: 5 mm Rating electrical power 1/4W (CHIP: 1/10W) · · · · · : nonflammable resistor. : internal component. : panel designation or adjustment for rrepair. All variable and adjustable resistors have characteristic curve B unless otherwise noted. Redings are taken with a color-bar signal input. no mark : COMMON ( ) : PAL [ ] : NTSC 3.58 Readings are taken with a 10 M digital multimeter. Voltage are dc with respect to ground unless otherwise noted. Voltage variations may be noted due to normal production tolerances. All voltage are in Volt. : Cannot be measured. Circled numbers are waveform references. : B +bus. : B bus. ÷ : signal path. ¢
· · · · · · · · ·
Reference information RESISTOR : RN : RC : FPRD : FUSE : RS : RB : RW : COIL : LF-8L CAPACITO