Sony Trinitron KV-HA21M50 Series User manual

REVISION HISTORY BG2T
MODEL
KV-HA21M50
KV-HA21M60
KV-HA21M80
KV-HA21M80
KV-HA21M80/H
KV-HA21M81
KV-HA21P52
PA RT N O. : 9-872-274-03
NO. SUFFIX DATE SUPP / CORR DESCRIPTION
1 -01 2001/11 _ _ 1st Issue
2 -02 2002/6 Supp-1 Rear Cover Assy Suffix Change (Page 71)
3 -03 2003/5 Supp-2 Change Color for Thailand models
(Page 72, 73)
CHASSIS

MODEL COMMANDER DEST. CHASSIS NO.
CHASSIS
TRINITRON ® COLOR TV
SERVICE MANUAL BG2T
MODEL COMMANDER DEST. CHASSIS NO.
KV-HA21M50 RM-969 Malaysia SCC-U71D-A
KV-HA21M60 RM-969 Thailand SCC-U73L-A
KV-HA21M80 RM-969 E SCC-U68D-A
KV-HA21M80 RM-969 Vietnam SCC-U75B-A
KV-HA21M80/H RM-969 ME SCC-U67K-A
(DOLPHIN GRAY) (BLACK)
KV-HA21M81 RM-969 ME SCC-U67J-A
KV-HA21P52 RM-969 Thailand SCC-U73K-A
TV
123
46
789
-0
5
JUMP
SOUND
MODE
SPACE
SOUND
PROGR
2

–2 –
KV-HA21M50/HA21M60/HA21M80/
KV-HA21M80/H/HA21M81/HA21P52
RM-969
SPECIFICATIONS
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.
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 REMOVINGTHE
ANODE.
Note
Power requirements 220-240 V AC, 50/60Hz (KV-HA21M60/HA21P52)
110-240 V AC, 50/60 Hz (KV-HA21M50/HA21M80/
HA21M80/H/HA21M81)
Power consumption (W) Indicated on the rear of the TV
Television system B/G, I, D/K, M
Color system PAL, PAL 60, NTSC3.58, NTSC4.43, SECAM
Stereo Bilingual NICAM Stereo/Bilingual B/G, I, D/K; A2 Stereo/ Bilingual B/G (KV-HA21M60)
Teletext English, Arabic, French (KV-HA21M81 Only)
Channel coverage
B/G VHF: E2 to E12
UHF: E21 to E69
CATV: S01 to S03, S1 to S41
IUHF: B21 to B68
CATV: S01 to S03, S1 to S41 (Except KV-HA21P52)
D/K VHF: C1 to C12, R1 to R12
UHF: C13 to C57, R21 to R60
CATV: S01 to S03, S1 to S41, Z1 to Z39 (Except KV-HA21P52)
MVHF: A2 to A13
UHF: A14 to A79
CATV: A-8 to A-2, A to W+4, W+6 to W+84 (Except KV-HA21P52)
˘(Antenna) 75-ohm external terminal
Audio output (Speaker) 5W + 5W
Number of terminal
DVideo Input: 2* Output: 1 Phono jacks; 1 VP-P, 75 ohms * One input line available
≥Audio Input: 2* Output: 1 Phono jacks; 500 mVrms * One input line available
2(Headphone) Output: 1 Stereo minijack
Picture tube 21 in.
Tube size (cm) 54 Measured diagonally
Screen size (cm) 51 Measured diagonally
Dimension (w/h/d, mm) 639 ×458 ×490
Mass (kg) 26
Design and specifications are subject to change without notice.

–3 –
KV-HA21M50/HA21M60/HA21M80/
KV-HA21M80/H/HA21M81/HA21P52
RM-969
TABLE OF CONTENTS
SELF DIAGNOSTIC FUNCTION ................................... 4
1. GENERAL ................................................................. 7
2. DISASSEMBLY
2-1. Rear Cover Removal ............................................... 13
2-2. Speaker Removal .................................................... 13
2-3. Chassis Assy Removal ............................................ 13
2-4. Service Position ...................................................... 13
2-5. Terminal Bracket Removal ..................................... 13
2-6. Replacement Of Parts ............................................. 13
2-6-1. Replacement Of Light Guide ....................... 13
2-6-2. Replacement Of Power Button .................... 13
2-7 Picture Tube Removal ............................................. 14
3. SET-UP ADJUSTMENTS
3-1. Beam Landing ......................................................... 15
3-2. Convergence ............................................................ 16
3-3. Focus Adjustment.................................................... 18
3-4. G2 (SCREEN) and White Balance Adjustments ... 18
4. CIRCUIT ADJUSTMENTS
4-1. Adjustment With Commander ................................ 19
4-2. Adjustment Method ................................................ 19
4-3. Picture Quality Adjustment .................................... 25
4-4. Deflection Adjustment ............................................ 25
4-5. A Board Adjustment After IC003 (MEMORY)
Replacement ............................................................ 25
4-6. Picture Distortion Adjustment ................................ 26
Section Title Page Section Title Page
5. DIAGRAMS
5-1. Block Diagram ........................................................ 27
5-2. Circuit Boards Location .......................................... 29
5-3. Schematic Diagram ................................................. 30
(1) A3 Board Schematic Diagram .......................... 31
(2) A Board Schematic Diagram ............................ 33
(3) V2 Board Schematic Diagram .......................... 37
(4) CV Board Schematic Diagram ......................... 39
5-4. Voltage Measurement ............................................. 43
5-5. Waveforms .............................................................. 47
5-6. Printed Wiring Boards and Parts Location ............. 49
5-7. Semiconductors ....................................................... 53
6. EXPLODED VIEWS
6-1. Picture Tube and Chassis ........................................ 55
7. ELECTRICAL PARTS LIST.................................... 57

–4 –
KV-HA21M50/HA21M60/HA21M80/
KV-HA21M80/H/HA21M81/HA21P52
RM-969
The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER lamp will automati-
cally 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
•+B overcurrent
(OCP)
•Horizontal
deflection
overdrive
•White balance
failure (no
PICTURE)
•Vertical deflection
stopped
•Micro reset
Detected
Symptoms
•Power does not come on.
•No power is supplied to
the TV.
•AC power supply is faulty.
•Power does not come on.
•Load on power line is
shorted.
•Has entered standby state
after horizontal raster.
•Power line is shorted or
power supply is stopped.
•Vertical deflection pulse
is stopped
•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.
SELF DIAGNOSTIC FUNCTION
No. of times
STANDBY/TIMER
lamp flashes
Does not light
2 times
4 times
—
Self-diagnostic
display/Diagnostic
result
—
002:000 or
002:001~255
004:000 or
004:001~225
101:00 or
101:001~225
Probable
Cause
Location
•Power cord is not
plugged in.
•Fuse is burned out
F4601 (F)
•H.OUT Q801 is shorted.
(A board)
•-13V is not supplied.
(A board)
•IC 551 faulty (A board)
•Discharge CRT
(CV Board)
•Static discharge
•External noise