Self Diagnosis Function; Diagnostic Test Indicators - Sony KP-ES43HK1 Service Manual

The unit 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.

1-1. DIAGNOSTIC TEST INDICATORS

When an errors occurs, the STANDBY/TIMER lamp will flash a set 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 occurred if the screen displays a "0".
Diagnostic
No. of times
Item
STANDBY/TIMER
Description
lamp flashes
• Power does not Does not light
turn on
• +B overcurrent
(OCP)
• +B overvoltage
(OVP)
• Vertical deflection
failure
• White balance
failure
(no PICTURE)
• High Voltage
failure
• Audio Protection
• Micro reset
Note 1 : Refer to screen (G2) adjustment in section 4-2 of this manual.
KP- ES43HK1/ME1/MN1/SN1, ES48HK1/ME1/MN1/SN1,
SECTION 1

SELF DIAGNOSIS FUNCTION

Self-diagnostic
display/
Diagnostic result
2 times 002:000 or
002:001 ~ 255
3 times 003:000 or
003:001 ~ 255
4 times 004:000 or
004:001 ~ 255
5 times 005:000 or
005:001 ~ 255
6 times 006:000 or
006:001 ~ 255
7 times 007:000 or
007:001 ~ 255
101:000 or
101:001 ~ 255
ES53HK1/ME1/MN1/SN1,
Probable Cause Location
• Power cord is not plugged in.
• Fuse (F6001) is burned out.
(G, G1 board)
• H. OUT Q5104 is shorted.
• H. LIN Q5105 is shorted.
(D board)
• IC6002 faulty.
• 10.5 V is not supplied.
(G, G1 board)
• V. OUT IC5302 faulty.
• R5340 open
• R5341 open
(D board)
• G2 is improperly adjusted.
(Note 1)
• CRT problem.
• Video OUT IC7101 (CR
board), IC7201 (CG board),
IC7301 (CB board) are faulty.
• IC8306 (J1 board) and
IC4301 (E board) are faulty.
• No connection E board to CR
board.
• IC6301 (G, G1 bard) faulty.
• Power supply fails.
• IC1101 (A1 board) faulty.
•Discharge CRT
(CR, CG, CB boards)
• Static discharge
• External noise
– 5 –
ES61HK1/ME1/MN1/SN1K
Detected Symptoms
• Power does not come on.
• No power is supplied to the PJ.
• 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.
• +135 V is too high.
• There is picture but speaker
does not release sound.
• Power is shut down shortly,
after this return back to normal.
• Detect Micro latch up.
RM-961