KV-DB29M60 — Sony TV Service Manual (repair manual)

Model
KV-DB29M60
Pages
123
Size
6.88 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LEVEL 2
File
kv-db29m60.pdf
Date

View Sony KV-DB29M60 Service Manual online

TRINITRON 
®
 
COLOR TV
SERVICE MANUAL
CX1
CHASSIS
MODEL
COMMANDER   DEST.
CHASSIS NO.
KV-DB29M60/B
RM-GA001
Thailand
SCC-V27E-A
MODEL
COMMANDER   DEST.
CHASSIS NO.
RM-GA001
– 2 –
KV-DB29M60/B
RM-GA001
TABLE OF CONTENTS
SELF DIAGNOSTIC FUNCTION ..................................3
1. DISASSEMBLY
1-1.
Rear Cover Removal .................................................. 5
1-2.
Speaker Removal ....................................................... 5
1-3.
Chassis Assy Removal ............................................... 5
1-4.
Service Position ......................................................... 5
1-5.
Terminal Bracket Removal ........................................ 5
1-6.
F1 Board Removal ..................................................... 5
1-7.
DL1 Board Removal .................................................. 6
1-8.
H1 and H2 Boards Removal ...................................... 6
1-9.
D Board Removal ...................................................... 6
1-10. A1 and BH1 Boards Removal ................................... 6
1-11. Picture Tube Removal ................................................ 7
2. SERVICE JIG
2-1.
Jigs Required for Servicing ....................................... 8
3. CIRCUIT BOARDS LOCATION ...................................8
4. ADVANCE OPERATION
4-1.
"RESET" Function ..................................................... 9
5. SET-UP ADJUSTMENTS
5-1.
Beam Landing Adjustment ...................................... 10
5-2.
Convergence Adjustment ......................................... 11
5-3.
Focus Adjustment .................................................... 13
5-4.
G2 (SCREEN) Adjustments .................................... 13
5-5.
Sub Brightness Adjustment ..................................... 13
5-6.
White Balance Adjustment ...................................... 13
6. CIRCUIT ADJUSTMENTS
6-1.
Adjustments With Commander ............................... 15
6-2.
Adjustment Method ................................................. 16
6-3.
Picture Quality Adjustments .................................... 61
6-4.
Sub Hue/Col Adjustment ......................................... 61
6-5.
Deflection Adjustments ........................................... 63
6-6.
Picture Distortion Adjustment (1) ........................... 64
Section
Title
Page
Section
Title
Page
7. DIAGRAMS
7-1.
Block Diagram ......................................................... 65
7-2.
Schematic Diagram Information ............................. 66
7-2-1. A1 Board – (Block 001) ................................ 67
7-2-2. A1 Board – (Block 002) ................................ 69
7-2-3. A1 Board – (Block 003) ................................ 71
7-2-4. A1 Board – (Block 004) ................................ 73
7-2-5. BH1 Board – (Block 001) ............................. 74
7-2-6. BH1 Board – (Block 002) ............................. 76
7-2-7. C1 Board – (Block 001) ................................ 78
7-2-
8. C1 Board – (Block 002) ................................ 80
7-2-
9. D Board – (Block 001) ................................. 81
7-2-
10. D Board – (Block 002) ............................... 83
7-2-1
1. DL1 Board Schematic Diagram ................. 84
7-2-1
2. F1 Board Schematic Diagrams ................... 85
7-2-1
3. H1 Board Schematic Diagrams .................. 86
7-2-1
4. H2 Board Schematic Diagram .................... 88
7-2-1
5. VM1 Board Schematic Diagram ................ 89
7-3.
Voltage Measurement and Waveform ...................... 91
7-4.
Printed Wiring Boards ........................................... 101
7-5.
Semiconductors ...................................................... 111
8. EXPLODED VIEWS
8-1.
Picture Tube and Speaker Bracket ........................ 113
8-2.
Chassis ................................................................... 114
9. ELECTRICAL PARTS LIST ...................................... 115
OPERATING INSTRUCTIONS
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.
– 3 –
KV-DB29M60/B
RM-GA001
Detected
Symptoms
• Power does not turn on.
• No power is supplied to the
TV.
• AC power supply is faulty.
• Power does not turn on.
• Load on power line is
shorted.
• H pulse output is too high.
• Power does not come on.
• Vertical deflection pulse is
stopped.
• Vertical size is too small.
• Vertical deflection stopped.
• No raster is generated.
• CRT cathode current
detection reference pulse
output is small.
• TV Blank
• No Raster
• Power is shut down shortly,
after this return back to
normal.
• Detect Micro latch up.
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. 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 error occurs, the STANDBY/TIMER lamp will flash a 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 failure
• +B overvoltage
(OVP)
• Vertical deflection
failure
• White balance
failure (no
PICTURE)
• 5V/9V failure
• Micro reset
No. of times
STANDBY/TIMER
lamp flashes
Does not light
2 times
3 times
4 times
5 times
8 times
Self-diagnostic
display/Diagnostic
result
002:000 or
002:001~255
003:000 or
003:001~255
004:000 or
004:001~255
005:000 or
005:001~255
008:000 or
008:001~225
101:00 or
101:001~225
Probable
Cause
Location
• Power cord is not plugged in.
• Fuse is burned out F1601
(F1 Board)
• H.OUT Q6802 is shorted.
PS6606 open, PS6605 open.
(D board)
• PH6602 faulty.
D6644 faulty.
• 10.5V is not supplied.
(D board)
• V.OUT IC6800 faulty
D6817 faulty
R6852 open
R6851 open (D board)
• G2 is improperly adjusted.
• CRT problem.
• Video OUT IC9001, 9002,
9003 are faulty. (C1 board)
• IC4301 CXA2170Q
(A1 board) are faulty.
• 5V regulator (IC2601) faulty.
• 9V regulator (IC2600) faulty.
• CRT Discharge (C1 Board)
• Static discharge
• External noise
SELF DIAGNOSTIC FUNCTION
2. STANDBY INDICATOR BLINKING PROCESS
The example above represents for 4 times blink
Lamp OFF 3 seconds 
Lamp ON 300ms
Lamp OFF 300ms
3. STANDBY INDICATOR ON TV FRONT PANEL
Standby indicator
– 4 –
KV-DB29M60/B
RM-GA001
002 : 000
003 : 000
004 : 000
005 : 001
Numeral "0" means that no fault has been detected.
Numeral "1" means a fault has been detected.
008 : 002
101 : 000
SELF DIAGNOSTIC
Numeral "2" means two faults have been detected.
4. SELF DIAGNOSTIC SCREEN DISPLAY
5. HANDLING SELF DIAGNOSTIC SCREEN DISPLAY
6. SELF-DIAGNOSTIC CIRCUIT
[+B overcurrent OCP ]
Occurs when an overcurrent on the +B(135) line is detected by Q6804.
If Q6804 go to ON, the voltage to the pin57 of IC4301 go to "HIGH".
The unit will automatically turn off.
[High voltage protector of Horizontal Deflection]
Occurs when an overvoltage of horizontal pulse is detected by D6809.
If the voltage of anode D6809, Q6814 and D6808 goes to High, the voltage
to pin57 of IC4301 go to "HIGH".
The unit will automatically turn off.
[+B overvoltage OVP ]
Occurs when an overvoltage on the +B(135) line is detected by D6635 and
Q6611. If Q6611 go to ON, the voltage to pin6 of IC001 go to "HIGH". The
unit will automatically turn off.
[Vertical deflection failure]
Occurs when an absence of the vertical deflection pulse is detected by
Q6808 and R6910. Shut down the power supply.
[White balance failure]
If the RGB levels do not balance or become low level within 5 seconds. This
error will be detected by IC4301.
TV will stay on, but there will be no picture.
[5V/9V failure]
Occurs when 5V/9V is not supplied to Micon (IC001).
No raster will be detected or no picture.
5
8
No.
Description
Method
1.
Display self diagnostic screen
[Display] t [Channel    ] t [Volume    ] t [Power / TV]
Note: The above must be performed while TV is on standby mode.
2.
Stop standby flash
i) Turn off power switch on main.
ii) Unplug power cord from the outlet.
3.
Clear fault result
In self diagnostic screen, press 
[Channel    ] t 
-
Note: Diagnostic results display on screen is not automatically cleared. Therefore,
clear result after completion of repair.
4.
Quit self diagnostic screen
Turn off power switch of remote commander or main unit.
IC4301
RGB JUNGLE
CXA2170AQ
OVP
FROM
CRT (IK)
[V] Q6808, R6910
IC001
SYSTEM
SDA
SDA
9V
5V
IC004
MEMORY
IK_IN
H PROT
RED LED
5
24
57
7
6
V PROT  
56
[OCP] Q6804, D6821
[H] D6808, D6809
84
14,47,
82
Page of 123
Display

Download Sony KV-DB29M60 Service Manual (Repair Manual)

Here you can view online or download Sony KV-DB29M60 Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sony KV-DB29M60 TV. Information contained in Sony KV-DB29M60 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).