KV-HA21M80 (serv.man3) — Sony TV Service Manual (repair manual)

Model
KV-HA21M80 (serv.man3)
Pages
47
Size
2.75 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-ha21m80-sm3.pdf
Date

View Sony KV-HA21M80 (serv.man3) Service Manual online

MODEL
COMMANDER DEST. CHASSIS NO.
CHASSIS
TRINITRON
®
 
COLOR TV
SERVICE MANUAL
BG2T
MODEL
COMMANDER   DEST.
CHASSIS NO.
KV-HA21M80
RM-969
Pakistan
TV
1
2
3
4
6
7
8
9
-
0
5
JUMP
SOUND 
MODE
SPACE 
SOUND
PROGR
2
– 2 –
KV-HA21M80
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 REMOVING THE
ANODE.
Note
Power requirements
110-240 V AC, 50/60 Hz
Power consumption (W) Indicated on the rear of the TV
Television system
B/G, I, D/K, M
Color system
PAL, PAL 60, SECAM, NTSC3.58, NTSC4.43
Channel coverage
B/G
VHF: E2 to E12
UHF: E21 to E69
CATV: S01 to S03, S01 to S41
I
UHF: B21 to B68
CATV: S01 to S03, S1 to S41
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
M
VHF: A2 to A13
UHF: A14 to A79
CATV: A-8 to A-2, A to W+4, W+6 to W+84
8
 (Antenna)
75-ohm external terminal
Audio output (Speaker)
5W + 5W
Number of terminal
D Video
Input: 2* Output: 1
Phono jacks; 1 V
P-P
, 75 ohms
* One input line available
9 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-HA21M80
RM-969
TABLE OF CONTENTS
SELF DIAGNOSIS FUNCTION ...................................... 4
1. GENERAL ................................................................. 7
2. DISASSEMBLY
2-1. Rear Cover Removal ............................................... 11
2-2. Speaker Removal .................................................... 11
2-3. Chassis Assy Removal ............................................ 11
2-4. Service Position ...................................................... 11
2-5. Terminal Bracket Removal ..................................... 11
2-6. Replacement Of Parts ............................................. 11
2-6-1. Replacement Of Light Guide ....................... 11
2-6-2. Replacement Of Power Button .................... 11
2-7. Picture Tube Removal ............................................. 12
3. SET-UP ADJUSTMENTS
3-1. Beam Landing ......................................................... 13
3-2. Convergence ............................................................ 14
3-3. Focus Adjustment .................................................... 16
3-4. G2 (SCREEN) and White Balance Adjustments ... 16
4. CIRCUIT ADJUSTMENTS
4-1. Adjustment With Commander ................................ 17
4-2. Adjustment Method ................................................ 17
4-3. Picture Quality Adjustment .................................... 23
4-4. Deflection Adjustment ............................................ 23
4-5. A Board Adjustment After IC003 (MEMORY)
Replacement ............................................................ 23
4-6. Picture Distortion Adjustment ................................ 24
Section
Title
Page
Section
Title
Page
5. DIAGRAMS
5-1. Block Diagram ........................................................ 25
5-2. Circuit Boards Location .......................................... 27
5-3. Schematic Diagram ................................................. 28
(1) A Board Schematic Diagram ............................ 29
(3) CV Board Schematic Diagrams ........................ 31
5-4. Voltage Measurement ............................................. 32
5-5. Waveforms .............................................................. 35
5-6. Printed Wiring Boards and Parts Location ............. 36
5-7. Semiconductors ....................................................... 39
6. EXPLODED VIEWS
6-1. Picture Tube and Chassis ........................................ 41
7. ELECTRICAL PARTS LIST .................................... 42
– 4 –
KV-HA21M80
RM-969
The units in this manual contain a self-diagnosis function. If an error occurs, the STANDBY (1) indicator will automati-
cally begin to flash. A description of the self-diagnosis function is explained in the instruction manual.
The number of times the STANDBY (1) indicator flashes translates to a probable source of the problem. 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. DIAGNOSIS TEST INDICATORS
When an errors occurs, the STANDBY (1) indicator will flash a set number of times to indicate the possible cause of the
problem. If there is more than one error, the indicator will identify the first of the problem areas.
Result for all of the following diagnosis items are displayed on screen. No error has occured if the screen displays a “0”.
Diagnosis
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 DIAGNOSIS FUNCTION
No. of times
STANDBY (1)
indicator flashes
Does not light
2 times
4 times
Self-diagnostic
display/Diagnosis
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
F600 (F)
• H.OUT Q801 is shorted.
(A board)
• -13V is not supplied.
(A board)
• IC 551 faulty (A board)
• Discharge CRT
(C Board)
• Static discharge
• External noise
Page of 47

Download Sony KV-HA21M80 (serv.man3) Service Manual (Repair Manual)

Here you can view online or download Sony KV-HA21M80 (serv.man3) Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sony KV-HA21M80 (serv.man3) TV. Information contained in Sony KV-HA21M80 (serv.man3) service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).