Troubleshooting Flow Chart - Panasonic SC-ZT1GN Service Manual

9.2.

Troubleshooting Flow Chart

9.2.1. Main Unit (SU-ZT1)
Power Supply
Operation Switch
HDMI Input
Optical Input
Audio Input
HDMI Output
Audio Output
Output (SW
Headphone Output
No power supply Primary Fuse (F701 check
Power source checking
No Operation
Panel P.C.B Check
Connector FFC checking
Operation Failure
No Picture
HDMI Power Supply Checking
JW4205 CN2005
No Audio
IC5561, IC5562, IC5563 (Main P.C.B)
Connector FFC checking
CN2003, CN2004, CN4221
HDMI Error appears
No Audio
Connector FFC checking
Optical Input Jack JK4501, JK4502
CN4102 CN1002
No Audio
Power supply check (For audio circuit)
+7V Q5507, -7V Q5508
Input terminal signal checking
(JK4001 IC4001 Pin
No picture Same as HDMI Input check
No audio Same as Audio output check
No audio
Audio output signal checking
JK4003, JK4004, JK4005, JK4006
SW output signal check
No audio
JK4002
No audio Headphone Output signal check
CN4601 JK4611
Main P.C.B Power circuit check
D5502 Pin ,
IC5501 Pin , ,
IC5502 Pin ,
PC5501 Pin ,
Power Supply line checking:
D5505 IC5571 Pin
Switch P.C.B Check S4601
Main P.C.B IC8001-Pin 81
Main P.C.B check
FL Power Supply T5551 Pin
, , ,
FFC connector (CN4601)
HDMI P.C.B Check
IC2101, IC2201, IC2232
HDMI Micro-processor IC:IC2002
DSP P.C.B Check
IC1000, IC1001
Main P.C.B Check
Selector IC IC4001
DSP P.C.B check
IC1000, IC1001
Main P.C.B Check
IC4001, IC4101, IC4102
CN4101 (Pin 25,26),( Pin 28,29)
DSP P.C.B Check
)
IC1000, IC1001
Same as Audio Output check
Main P.C.B check
DSP output IC4201 IC4203
Selector Volume IC IC4001
Audio amp IC IC4301, IC4302
Main P.C.B check
IC4001, IC4303
Main P.C.B check
IC4001, IC4304
26
Main P.C.B
Micro-processor IC IC8001
Reset IC IC8003
Power Det IC IC8004
Main P.C.B
Micro-processor IC IC8001
Main P.C.B
Micro-processor IC IC8001
Main P.C.B
Micro-processor IC IC8001
Main P.C.B
Micro-processor IC IC8001
Same as Audio output check
Wireless output line
CN4701 Tx Module P.C.B
Micro-processor IC IC8001