Read Sony KF-42E200A / KF-50E200A / KF-55E200A (serv.man2) Service Manual online
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KF-42E200A/50E200A/55E200A
RM-GA007 RM-GA007 RM-GA007
SECTION 1
SELF DIAGNOSIS FUNCTION
1. Summary of Self-Diagnosis Function
- This device includes a self-diagnosis function.
- In case of abnormalities, the POWER/STANDBY indicator automatically blinks. It is
- In case of abnormalities, the POWER/STANDBY indicator automatically blinks. It is
possible to predict the abnormality location by the number of blinks. The Instruction
Manual describes blinking of the POWER/STANDBY indicator.
Manual describes blinking of the POWER/STANDBY indicator.
- If the symptom is not reproduced sometimes in case of a malfunction, there is recording of
whether a malfunction was generated or not. Operate the remote command to confirm the
matter on the screen and to predict the location of the abnormality.
matter on the screen and to predict the location of the abnormality.
2. Diagnosis Items and Prediction of Malfunction Location
- When a malfunction occurs the POWER/STANDBY indicator only blinks for one of the
following diagnosis items. In case of two or more malfunctions, the item which first
occurred blinks. If the malfunctions occurred simultaneously, the item with the lower
blink count blinks first.
occurred blinks. If the malfunctions occurred simultaneously, the item with the lower
blink count blinks first.
- The screen display displays the results regarding all the diagnosis items listed below.
The display "0" means that no malfunctions occurred.
Defected symptoms
La
Temp error
c
r err
mp ove
or
3
2 times
7 times
8 times
10 times
times
- Lamp cover is not
attached securely.
attached securely.
Diagnosis Item
Number of times
POWER/STANDBY
indicator blinks
Probable Cause
Location
Lamp driver error
5 times
- Lamp driver is faulty.
- No picture/No sound
Low B error
6 times
- SET12V is not
supplied.
supplied.
- No picture/No sound
- No picture/No sound
- No picture/No sound
- No picture/No sound
- Lamp for the light
source burns out.
source burns out.
n s
Fa
topped
4 times
- Fan1, Fan2, F an 3,
power is not supplied.
- Fan connector is not
attached securely.
power is not supplied.
- Fan connector is not
attached securely.
- No picture/No sound
Lamp error
LAMP-LED flashes
- No picture/No sound
- No picture/No sound
- No picture/No sound
Audio error
D-OVP error
ATSC OVP
- Fan caught wires or
harnnesses.
harnnesses.
- DC voltage is supplied
to Speaker.
- AU18V is not supplied.
to Speaker.
- AU18V is not supplied.
- Set temperature is high.
- Temp sensor connector
is not attached securety.
(CN7020 on HB board,
CN7180 on S2 board)
- Temp sensor connector
is not attached securety.
(CN7020 on HB board,
CN7180 on S2 board)
- Over voltage detection
for SET 12V.
for SET 12V.
- Voltage down detection
for SET 6V.
for SET 6V.
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