Sony KLV-32D300A / KLV-40D300A / KLV-46D300A (serv.man2) Service Manual ▷ View online
– 16 –
KLV-32/40/46D300A
RM-GA008
G3 Board Trouble shooting for Power Supply (KLV-40/46D300A)
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No Picture
Power LED
Light
or Blinking
F6000 or R6009
Open?
R6200
Open?
6 or 13 times
blinking
2 times
blinking
Power LED
(RED) blinking
Power LED
(GREEN)
blinking
CN6202 pin 10
(Power On)
Low
C6518_+
V>15V?
Signal PWB fail
B board
Check u-com
B board
Trouble shooting
for main converter
Check
St-by 3.3V line
St-by Secondary area fail
Check St-by 3.3V Line
St-by IC6200 or
near area fail
Q6502 or Q6503 short?
Low B error
Main converter
fail
Panel error
Inverter circuit
Check D1,D1/D2
PFC converter fail
Trouble shooting
for Inverter
Trouble shooting
for PFC converter
– 17 –
KL
V
V
-32/40/46D300A
RM-GA008
G3 Board Trouble shooting for PFC Converter (KLV-40/46D300A)
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
PFC out
CN6501 pin 3
Vout<10V?
at 100-220V
input
IC6500 pin_8
15V?
IC6500 pin_7
Pulse wave appear
Q6301_B
V>0.6V
C6205_+
V>15V?
Standby (IC6200) fail
Pri_Vcc fail
Check Q6502,Q6503
_G Waveform
PFC Converter Fail
G3
(Vout<350V)
F6000 open or
R6009 open or
Q6502,Q6503
fail
PFC OVP operate
Check IC6500
Check Q6303
– 18 –
KL
V
V
-32/40/46D300A
RM-GA008
G3 Board Trouble shooting for Main Converter (KLV-40/46D300A)
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Pulse wave form
appear
IC6100 pin_12
IC6100 pin_6
V>3V?
IC6100 pin_1
V>1.4V?
C6205_+
V>15V?
Saw wave form
appear at
IC6100 pin_3
IC6100 pin_8
V>15V?
R6110
Open?
IC6100 OCP operate
or Secondary circuit short
St-by P/S
Pri_Vcc fail
Check R6101
or Q6303
Check IC6100
Near area
Q6100,Q6101
fail
IC6100 fail or
PH6100,IC6150
fail
Main converter fail
3V
IC6100 Pin_6
Shut Down
– 19 –
KLV-32/40/46D300A
RM-GA008
Audio Trouble Shooting Chart
IC2009 (TPA3100D2)
Breakdown
Breakdown of Mute or
SD control circuit for
IC2009 (TPA3100D2).
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
Checked the power supply of audio.
AU_13V, Reg_12V.
Checked the FAULT signal of IC2009 (TPA3100D2).
In LOW, it is abnormal.
Checked the FAULT signal of IC2009 (TPA3100D2).
In LOW, IC breakdown, output short, and etc.
IC2010 (NJM3414AV) Breakdown.
MUTE circuit Breakdown
Headphone connector defect.
NO
IC2004 (NJM4558V) Breakdown.
MUTE circuit Breakdown.
Is the speaker signal
output from
IC2002 (CXD9890AQ)?
IC2003 (NJM4558V) Breakdown.
MUTE circuite Breakdown.
1
1
NO
NO
NO
NO
Checked of each input
terminal.
NO
NO
IC2006 (NJM4558V)
Breakdown!
or
Breakdown of circuit
in surrounding.
NO
Operation check of
HP_DET.
Is the head phone
signal output from
signal output from
IC2002 (CXD9890AQ)?
Is the LINE signal
output from
IC2002 (CXD9890AQ)?
Is the REC signal
output from
IC2002 (CXD9890AQ)?
Failer of 8
count
blinking?
Is the sound
output from the
headphone?
Is the sound
output from
LINE_OUT?
No sound
from
speaker.
No sound
from
REC_OUT.
No sound
from
LINE_OUT.
No sound
from Head
Phone.
Is the sound
output from
REC_OUT?
Is the MUTE pin of
IC2009 (TPA3100D2)
HIGH?
Is the SD pin of
IC2009 (TPA3100D2)
LOW?
Is the
Headphone
_DET
IC2002 (CXD9890AQ)
Breakdown!
or
Breakdown of circuit in
surrounding.
It is confirmed whether there
is signal that responds to the
input of
IC2002 (CXD9890AQ)
respectively.
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