20
3
.
With picture but no sound.
If there is output from sound power amplification board
no
yes
yes
no
4
.
A certain channel is abnormal
1) AV no picture
With picture but no sound
Sound box damaged
Sound power amp. or other peripheral circuit have
problem. Check power supply, if SHUTDOWN pin
control is normal and if output short circuited or other
problems that cause protection to work.
check if input signal in sound power
amplification board
Measure if the sound input of the
present channel is normal
MSP3420 or other peripheral
circuit have problem
Check different levels of circuit
following input audio signal
channel
no
yes
Check if X7 has signal input
Check if N7 has clock signal output and
ITU-R 656 is normal?
There is problem from AV
socket to X7 channel
Check if N10 FLI2310
output is normal
N7 or other peripheral
circuit have problem
N10 FLI2310 or other
peripheral circuit have
problem
N15 or other peripheral
circuit have problem
yes no
no
yes
no
yes
Summary of Contents for PH-42R6
Page 1: ...PDP TELEVISION PH 42R6 Canada...
Page 11: ...9 Fig 1 1 Simplified functional block diagram of the MSP 34x0G...
Page 13: ...11 INTERNAL BLOCK DIAGRAM...
Page 26: ...Power board...
Page 27: ...Power board power board...
Page 39: ...APPENDIX Exploded view PH 42X6...
Page 42: ...603 PH42R60 10 Ver 1 0...