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KV-HS29M61/M90/M91, HS34M61/M90/M91, HS38M61/M90/M91
RM-997
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 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 occured if the screen displays a “0”.
Note 1: If a + B overcurrent is detected, stoppage of the vertical deflection is detected simultaneously.
The symptom that is diagnosed first by the microcontroller is displayed on the screen.
Note 2: Refer to screen (G2) Adjustment in section 3-4 of this manual.
SELF DIAGNOSTIC FUNCTION
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 amall.
• Vertical deflection stopped.
• Power line is shorted or
power supply is stopped.
• No raster is generated.
• CRT cathode current
detection reference pulse
output is small.
• H pulse output is too high.
• Low B (-10.5V) is too Low.
• There is picture but speaker
does not release sound.
• Power is shut down shorlty,
after this return back
tonormal
• Detect Micro latch up.
Probable
Cause
Location
• Power cord is not plugged
in.
• Fuse is burned out F1601
(F1 Board)
• H.OUT Q5030 is shorted.
• Q5003(PWM-OUT) is
shorted.
• PH 6502 faulty.
• 135V Line is overvoltage
supplied. (D board)
• V.OUT IC5004 faulty
D5001 faulty
D5002 faulty
D5035 faulty
D5036 faulty
R5173 or R5172 open.
• G2 is improperly adjusted.
(Note 2)
• CRT problem.
• Video OUT IC9001,9002,
9003 are faulty. (C1 board)
• IC4301 (E board) are faulty.
• No connection E board to
C1 board.
• C5064 is open circuit.
• CN5002(D board) is
disconnected.
• HOP circuit is failure.
• -10.2V Power Supply or
IC2601 or IC2602 are
failure.
• CN6101 (D board) is
disconnected
• Power Supply fails.
• IC2003, IC1204 faulty.
• Discharge CRT (C1 Board)
• Static discharge
• External noise
Diagnostic
Item
Description
• Power does not
turn on
• +B overcurrent
(OCP) or
• +B overvoltage
(OVP)
• Vertical deflection
failure
• White balance
failure
(no PICTURE)
• Horizontal
deflection failure
• Audio Protection
• Micro reset
Self-diagnostic
display/Diagnostic
result
—
002:000 or
002:001~255
003:000 or
003:001~255
004:000 or
004:001~225
005:000 or
005:001~225
006:000 or
006:001~225
007:000 or
007:001~22500
101:00 or
101:001~225
No. of times
STANDBY/TIMER
lamp flashes
Does not light
2 times
3 times
4 times
5 times
6 times
7 times
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