DOWNLOAD Sony KLV-52X200A Service Manual ↓ Size: 11.07 MB | Pages: 127 in PDF or view online for FREE

KLV-52X200A (CH)    2-1

Trouble

YES

NO

Set Power

See 

1. No Power

YES

Self diagnosis

See

3. Self Diagnosis

NO

See

4. Audio Problem

See

5. Video problem

Audio

Video

YES

NO

Set re-boots

See

2. Reboot

1. No Power

1. No Power

When Set has no power (no LED action), these problem may be happ

When Set has no power (no LED action), these problem may be happ

ened ;

ened ;

-

-

Main Power Key does not work.

Main Power Key does not work.

-

-

TV Micro on AG has problem.

TV Micro on AG has problem.

-

-

Check H1 board (power key SW on it) and harness connection H1(CN

Check H1 board (power key SW on it) and harness connection H1(CN

3001) and 

3001) and 

AG(CN9201).

AG(CN9201).

-

-

Remote Commander does not work.

Remote Commander does not work.

-

-

Check RC battery,

Check RC battery,

-

-

Check H3 board (it has IR receiver) and harness connection H3(CN

Check H3 board (it has IR receiver) and harness connection H3(CN

3201) and 

3201) and 

AG(CN9201).

AG(CN9201).

-

-

TV Micro on AG has problem.

TV Micro on AG has problem.

In case of TV Micro on AG board does not work.

In case of TV Micro on AG board does not work.

-

-

Check STBY 5V power rail from G1. Refer 

Check STBY 5V power rail from G1. Refer 

“

“

Power Supply and Inverter

Power Supply and Inverter

”

”

document 

document 

more detail.

more detail.

-

-

TV Micro itself has problem. Replace AG board.

TV Micro itself has problem. Replace AG board.

KLV-52X200A (CH)    2-2

2. Set Reboots

2. Set Reboots

TV micro (on AG board) is monitoring WE Micro (on B board) and E

TV micro (on AG board) is monitoring WE Micro (on B board) and E

MMA (on FXE) 

MMA (on FXE) 

are alive or not like watch dog timer. When WEM or EMMA has not 

are alive or not like watch dog timer. When WEM or EMMA has not 

boot up, 

boot up, 

TVM try to re

TVM try to re

-

-

start. We can see chassis reboot at this case. Check B and FXE 

start. We can see chassis reboot at this case. Check B and FXE 

has correct power or not. 

has correct power or not. 

-

-

B board 

B board 

-

-

CN 4000 11V, 7V power and harness to G1

CN 4000 11V, 7V power and harness to G1

(52 : G2)

(52 : G2)

-

-

F4300, F4301, F4302, F4303, F4000 conduction.

F4300, F4301, F4302, F4303, F4000 conduction.

-

-

FXE board

FXE board

-

-

CN 7500

CN 7500

11V power. 

11V power. 

-

-

PS 7500 conduction.

PS 7500 conduction.

If power rail has no problem, replace B or FXE.

If power rail has no problem, replace B or FXE.

3. Self Diagnosis

3. Self Diagnosis

Communication Error (DTAU)

Communication Error (DTAU)

DIGCO

DIGCO

11

11

Power Error (DTAU)

Power Error (DTAU)

DIGBO

DIGBO

10

10

Audio Protector

Audio Protector

AUDIO

AUDIO

7

7

Panel Error

Panel Error

PANEL

PANEL

9

9

LowB Error

LowB Error

POWER_ER

POWER_ER

6

6

FAN Error

FAN Error

(Not Detected. Display Only)

(Not Detected. Display Only)

FAN

FAN

4

4

+B_OVP

+B_OVP

OVP

OVP

3

3

Panel Temp Error

Panel Temp Error

TEMP

TEMP

2

2

Contents

Contents

Display 

Display 

(Self Diagnosis mode )

(Self Diagnosis mode )

Red LED 

Red LED 

Blink

Blink

When self diagnosis happens, STBY (RED LED) blinks and 

the history can be seen on display by self diagnosis mode.

KLV-52X200A (CH)    2-3

This indicates high temperature inside chassis. IC9201 on AG Board Side is 
monitoring temperature and DE micro on B board is controlling IC9201.

When it happens;

- Check chassis environment

- Check around IC9201 and replace AG or B if temperature monitoring circuit
has problem.

- Check panel

3

3

-

-

1. Temp Error (RED 2 times blink)

1. Temp Error (RED 2 times blink)

This indicates OVP (Over Voltage Protection) of G board. TV Micro (IC9704, 
AG board) pin139 detects OVP and shuts down chassis power (STBY). See 
Power Supply and Inverterî document more detail.

3

3

-

-

2. OVP (RED 3 times blink)

2. OVP (RED 3 times blink)

KLV-52X200A (CH)    2-4

This indicates POWER Error, Low B error of 11V from G board. TV Micro 
(IC9704, AG board) pin150 detects POWER_ER and shuts down chassis 
power (STBY).

- Check CN4000 on B board 11V and F4000 has 11V or not. 11V to AG board 
comes this path.

- Check G board. See Power Supply and Inverterî document more detail.

3

3

-

-

3. POWER_ER (RED 6 times blink)

3. POWER_ER (RED 6 times blink)

This indicates Audio Error (Protection). It happens;

- IC8806 on AG board, Audio Amp detects over current, thermal shut down 
and/or low voltage of itself.

- DC voltage detected for speaker line.

Check above and replace AG board.

3

3

-

-

4. Audio Error (RED 7 times blink)

4. Audio Error (RED 7 times blink)