DOWNLOAD Sony KV-AR29M90B Service Manual ↓ Size: 13.08 MB | Pages: 96 in PDF or view online for FREE

Model
KV-AR29M90B
Pages
96
Size
13.08 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kv-ar29m90b.pdf
Date

Sony KV-AR29M90B Service Manual ▷ View online

– 4 –
KV-AR29M90B
RM-W104
2. DISPLAY OF STANDBY/(1) indicator FLASH
COUNT
3. STOPPING THE STANDBY/(1) indicator FLASH
Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY/(1) 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 occurence of failure on the screen for confirmation.
[To Bring Up Screen Test]
In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:
[display] / channel [5] / volume [-] / Power 
 / TV 
˘
Note that this differs from entering the service mode (volume  [+]).
Self-Diagnostic screen display
Diagnosis Item
Flash Count*
+B overcurrent
2 times
I-Prot
4 times
IK (AKB)
5 times
HV Protect
8 times
* One flash count is not used for self-diagnosis.
Lamp OFF 3 sec 
Lamp ON 300ms
Lamp OFF 300ms
2 : 000
3 : N/A
4 : 000
5 : 001
3 : 000
8
101 : N/A
SELF DIAGNOSTIC
Numeral "0" means that no fault was detected.
Numeral "1" means the number of a fault occurrence (1~255).
 STANDBY u indicator
– 5 –
KV-AR29M90B
RM-W104
5. HANDLING OF SELF-DIAGNOSTIC SCREEN DISPLAY
Since the diagnosis 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-diagnosis 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 when the self-diagnostic screen is
displayed, as shown below:
Channel [8]
/ [ENTER]
[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-DIAGNOSIS CIRCUIT
[+B overcurrent OCP ]
Occurs when an overcurrent on the +B (135V) line is detected by pin 32 of IC001
(A Board). If the voltage of pin 97 of IC001 (A Board) is less than 1V when V.SYNC is
more than HV, the unit will automatically go to standby.
[I-Port]
Occurs when an absence of the vertical deflection pulse is detected by pin 13 of IC001
(A Board).
[IK $AKB%]
If the RGB levels* do not balance within 15 sec after the power is turned on, this error
will be detected by IC001 (A Board). TV will stay on, and indicator will start to Blink 5
times.
[HV Protect]
Occurs when IC001 internal HV protect detects an abnormal H-Pulse (frequency) due
to unproper power supply to IC001. TV cuts off high voltage power of anode CRT. No
picture will be detected eg IC607, IC604 go faulty.
* (Refers to the RGB levels of the AKB detection Ref pulse that detects 1K.)
A BOARD
IC001
Y/CHROMA JUNGLE
A BOARD
IC503
V.OUT
A BOARD
IC001
SYSTEM
A BOARD
IC003
MEMORY
FROM
C BOARD
IC751 PIN 5
IK
EHTO
RED LED
DISPLAY
SDA1
V.GUARD
SDA
5
F.B-PLS
3
116
45
97
7
A BOARD
FROM
Q511
COLLECTOR
30
– 6 –
KV-AR29M90B
RM-W104
SECTION 1
DISASSEMBLY
1-1.
REAR COVER REMOVAL
1-2.
SPEAKER REMOVAL
1-5.
TERMINAL BRACKET AND J1 BOARD
REMOVAL
1-6.
F BOARD REMOVAL
1-3.
CHASSIS ASSY REMOVAL
1-4.
SERVICE POSITION
1 Nine screws
     (+BVTP 4 
× 16)
     Type 2  TT(B)
2 Rear cover
1 Two screws
     Washer head
     (+P 4 
× 16)
1 One screws
     (+BVTP 3
×12)
     Type 2  TT(B)
6 Two hooks 
2 One screws
     (+BVTP 3 
× 12)
     Type 2  TT(B)
7 J Board
4 Two screws
     (+BVTP 3 
× 12)
     Type 2  TT(B)
3 One screws
     (+BVTP 4 
× 16)
     Type 2  TT(B)
5 Terminal bracket
2 F Board
3 One Hook
1 One screws
     (+BVTP 3 
× 12)
– 7 –
KV-AR29M90B
RM-W104
1-7.
D3 BOARD REMOVAL
1-8.
H1 AND H2 BOARDS REMOVAL
1-9.
A BOARD REMOVAL
1 Four Hooks
2 D3 Board
2 H1 Board    
1 Five Hooks     
5 Three Hooks     
4 Cover, H
3 H2 Board
1 Four screws
     (+BVTAP 3 
× 12)
2 Four Hooks
3 A Board
4 Two screws
     (washer head)
     (+P 3 
× 12)
Page of 96
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Sony KV-AR29M90B Service Manual ▷ Download

  • DOWNLOAD Sony KV-AR29M90B Service Manual ↓ Size: 13.08 MB | Pages: 96 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony KV-AR29M90B in PDF for free, which will help you to disassemble, recover, fix and repair Sony KV-AR29M90B TV. Information contained in Sony KV-AR29M90B 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.