Panasonic SA-PT850GC / SA-PT850GCS / SA-PT850GCT / SA-PT850GN / SA-PT850GS Service Manual / Supplement ▷ View online
1
Background
2
2
Block Diagram
3
3
Troubleshooting Guide
4
4
Part Location
5
SA-PT850GC
SA-PT850GCS
SA-PT850GCT
SA-PT850GN
SA-PT850GS
SA-PT850GCS
SA-PT850GCT
SA-PT850GN
SA-PT850GS
Colour
(K).......................Black Type
4.1.
SMPS P.C.B.
5
4.2.
D-Amp P.C.B.
6
5
D-Amp IC Configuration
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DVD Home Theater Sound System
Subject : F61 Troubleshooting Summary
Please file and use this supplement manual together with the service manual for
Model No. SA-PT850GC/GCS/GCT/GS-K, Order No. MD0705019CE
Model No. SA-PT850GN-K (SC-PT850WGN-K), Order No. MD0706011CE
Model No. SA-PT850GC/GCS/GCT/GS-K, Order No. MD0705019CE
Model No. SA-PT850GN-K (SC-PT850WGN-K), Order No. MD0706011CE
CONTENTS
Page
Page
ORDER NO. MD0711010SE
1 Background
This supplement illustrates the checking procedures when upon detecting the error code of “F61” after power up.This is to
troubleshoot Power P.C.B upon detecting the code.
troubleshoot Power P.C.B upon detecting the code.
2
SA-PT850GC / SA-PT850GCS / SA-PT850GCT / SA-PT850GN / SA-PT850GS
2 Block Diagram
Speaker Out
DC Detect
DC Detect
SUBWOOFER
CENTER
FRONT - R
FRONT - L
SURROUND - R
SURROUND - L
CENTER
FRONT - R
FRONT - L
SURROUND - R
SURROUND - L
– 30V Detect
SYS6V
FAN Detect
D-AMP P.C.B.
SMPS P.C.B.
MICON
DCDET
DCDET
DCDET
SYS6V
Temperature Detect
“F61” Detection Block at SMPS P.C.B. & D-Amp P.C.B.
3
SA-PT850GC / SA-PT850GCS / SA-PT850GCT / SA-PT850GN / SA-PT850GS
3 Troubleshooting Guide
The table below show the symptoms and checking items for troubleshooting the error code.
Symptom
Checking Items
Repair Items
Remarks
FL display blinking with
abnormal segment when
power ON the set or F61
abnormal segment when
power ON the set or F61
Check the soldering of the SMPS
P.C.B.
P.C.B.
· Is there any solder crack at area
(Q5860,Q5861, Q5862,TH5860,
QR5801)
QR5801)
· Check all the supply line 30V
Touch-up the solder crack area/
Change the defective parts.
Change the defective parts.
· Q5860,Q5861,Q5862,TH5860
= Temperature Detect
· QR5801 = 30V Detect
SMPS
P.C.B.
Refer to
Fig. 1
P.C.B.
Refer to
Fig. 1
First Power ON Display
immediate show F61 .
immediate show F61 .
Check Speaker output by using
multimeter,
· If there is a DC Voltage around
multimeter,
· If there is a DC Voltage around
30V
· Check Output IC (Pin 10 &
14)which have DC Voltage at
Speaker output short to
Vdd/Vss
Speaker output short to
Vdd/Vss
· If shorted that means D-Amp
damage already.
Change the defective parts.
P/N =
P/N =
For Configuration
Refer to table 1
Refer to table 1
C1BA00000487
D-AMP
P.C.B.
P.C.B.
Refer to
Fig. 2
Fig. 2
Power ON for awhile then
only trigger F61 .
(Symptom always happen)
only trigger F61 .
(Symptom always happen)
Check the fan connection
· If the fan not proper connected,
F61 will trigger when the
volume increase.
· If the fan is not working, check
for fan circuit
Re-connect the Fan to CN5501
Fan circuit: Q5640, Q5641,
Q5642, Q5644
Fan circuit: Q5640, Q5641,
Q5642, Q5644
D-AMP
P.C.B.
Refer to
Fig. 3
P.C.B.
Refer to
Fig. 3
4
SA-PT850GC / SA-PT850GCS / SA-PT850GCT / SA-PT850GN / SA-PT850GS
Display