DOWNLOAD Sony KV-DR34M97 Service Manual ↓ Size: 17.82 MB | Pages: 127 in PDF or view online for FREE

Model
KV-DR34M97
Pages
127
Size
17.82 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-dr34m97.pdf
Date

Sony KV-DR34M97 Service Manual ▷ View online

– 4 –
KV-DR34M97
RM-991
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 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)
• +B overvoltage
(OVP)
• Vertical deflection
failure
• White balance
failure (no
PICTURE)
• Horizontal
deflection failure
• Micro reset
No. of times
STANDBY/TIMER
lamp flashes
Does not light
2 times
3 times
4 times
5 times
6 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
006:000 or
006:001~225
101:00 or
101:001~225
Probable
Cause
Location
• Power cord is not plugged
in.
• Fuse is burned out F1601
(F1 Board)
• H.OUT Q6807 is shorted.
• H.IN Q6810 is shorted.
Q6802 shorted.
• PH6602 faulty.
D6644 faulty, R6651 open.
• 10.5V is not supplied.
(D board)
• V.OUT IC6800 faulty
D6816 faulty
D6817 faulty
D6824 faulty
R6852 open
R6851 open (D board)
• G2 is improperly adjusted.
(Note 2)
• CRT problem.
• Video OUT IC9001, 9002,
9003 are faulty. (C board)
• IC8306 (A board) and
IC4301 (A board) are faulty.
• C6831 is open circuit.
PS6606 open, PS6605
open. (D board)
• CRT Discharge (C Board)
• Static discharge
• External noise
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.
• 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.
• H pulse output is too high.
• Power is shut down shortly,
after this return back to
normal.
• Detect Micro latch up.
Note 1: Refer to screen (G2) Adjustment in section 5-5 of this manual.
SELF DIAGNOSTIC FUNCTION
– 5 –
KV-DR34M97
RM-991
2. DISPLAY OF STANDBY/TIMER LIGHT FLASH COUNT
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 off” 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
Lamp ON 0.3 sec.
Lamp OFF 3 sec.
Lamp OFF 0.3 sec.
2 times
3 times
4 times
5 times
6 times
Diagnostic Item
Flash Count*
+B overcurrent
2 times
+B overvoltage
3 times
V deflection stop
4 times
White balance failure
5 times
Horizontal Deflection Failure
6 times
* One flash count is not used for self-diagnostic.
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.
006 : 002
101 : 000
SELF DIAGNOSTIC
Numeral "2" means two faults have been detected.
STANDBY/SLEEP lamp
– 6 –
KV-DR34M97
RM-991
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
[+B overcurrent ªOCPº]
Occurs when an overcurrent on the +B(135) line is detected by Q6610
and Q6609.
If Q6610 and Q6609 go to ON, the voltage to the pin3 of IC001 go to UP.
The unit will automatically turn off.
[+B overvoltage ªOVPº]
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 UP. The
unit will automatically turn off.
[Vertical deflection failure]
Occurs when an absence of the vertical deflection pulse is detected by
Q6819 and R6832. 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.
[High voltage protector of Horizontal Deflection]
Occurs when an overvoltage of horizontal pulse is detected by D6809 and
IC6801.
If the voltage of anode D6830, Q6800 and D6825 goes to High, the
voltage to pin34 of IC4301 go to UP. The unit will automatically turn off.
IC4301
RGB JUNGLE
CXA2150AQ
OVP OCP
FROM
CRT (IK)
[V] Q6819, R6832
IC001
SYSTEM
SDA
SDA
IC003
MEMORY
IKIN
H PROT
LED 1
5
58
34
54
3
6
V PROT  
35
[H] D6825, D6830
– 7 –
KV-DR34M97
RM-991
1 Sixteen screws
     (+BVTP 4 
× 16)
2 Rear cover
SECTION 1
DISASSEMBLY
1-1.
REAR COVER REMOVAL
1-2.
3D SPEAKER BOX REMOVAL
1-3.
SPEAKER REMOVAL
1-4.
CHASSIS ASSY REMOVAL
1-5.
DH BOARD REMOVAL
1 Two screws
     (TP + TWH 4 
× 25)
2 3D Speaker 
box assy
1-6.
SERVICE POSITION
1 Two hooks
2 DH Board
1 Two screws
     (+BVTP 4 
× 16)
2 Two screws
     (Washer Head) 
     (+P4x16)
3 Two screws
     (+BVTP 4 
× 16)
Page of 127
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Sony KV-DR34M97 Service Manual ▷ Download

  • DOWNLOAD Sony KV-DR34M97 Service Manual ↓ Size: 17.82 MB | Pages: 127 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony KV-DR34M97 in PDF for free, which will help you to disassemble, recover, fix and repair Sony KV-DR34M97 TV. Information contained in Sony KV-DR34M97 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.