Service manual

Page 7
V25 / V27 Chassis Down to 1
Symptom
Most Likely
Other Possibilities
Video Problems, all Inputs & Menu bad.
Audio OK
PCB-SIGNAL PCB-CRTs, PCB-DM3
Video&Audio Problems. All signals bad. HV
is OK
PCB-DM3
PCB-SIGNAL
A
nalog Tuning problems. External Inputs &
Digital OK
PCB-SIGNAL
PCB-TERMINAL
A
nalog Tuning & External Inputs Problems.
Digital OK PCB-TERMINAL
PCB-SIGNAL
Digital Tuning problems. Analog OK
PCB-TUNER
PCB-DM3
1394 Problems
PCB-DM3
A
udio Problems. Speakers, Monitor A/V 1
& Audio 2 Bad
PCB-TUNER
A
udio Problems. Speakers, Monitor A/V 1
Bad. Audio 2 Good
PCB-DM3
Audio Problems. Speakers Bad. Monitor
A/V 1 & Audio 2 Good
PCB-SIGNAL
SPEAKERS
Control Problems
PCB-SIGNAL PCB-DM3
Control Problems (Front Panel)
PCB-CONTROL
Control Problems (Remote)
REMOTE
PCB-PREAMP
Won't power on. Power LED blinking
constantly. (Boot sequence incomplete.)
PCB-DM3
Bad connection between DM3 &
Signal PCBs.
Won't power on. Boot sequence repeats
every 30 seconds.
PCB-E2P
Shut Down Problems - Error Code 12
PCB-MAIN
Shut Down Problems - Error Code 21
PCB-MAIN
Shut Down Problems - Error Code 22
PCB-MAIN
Shut Down Problems - Error Code 23
Q5A37, PCB-MAIN
PCB-SIGNAL
Dead Set - Error Code 35
FAN
Bad connection between the
Fan and DM3
Dead Set
PCB-MAIN
Convergence/Geometry Problems
PCB-SIGNAL
V25 & V27 Symptom/Cause Information