Panasonic PT-RZ470 Series Service Manual page 36

■ Remote controller does not work. (only rear side)
A Waveform of RM1601 pin 1 can be detected.
Replace A-PCB.
A
■ Remote controller does not work. (only front side)
R Waveform of RM3201 pin 1 can be detected.
Cable check of R1-V2 connector.
Cable check of A5-V1 connector.
Replace R-PCB.
R
■ SERIAL IN does not work.
Confirm the connection of RS-232C cable.(SERIAL IN)
When it was sent by the command, waveform
G
of IC4003 pin 13,15,17 can be detected.
G Replace G-PCB.
■ Control panel does not work.
When a main power supply is turned ON,
S
5 pins of S1 connector are 3.3V.
Cable check of A9-S1 connector.
S
Check voltage of S1 connector 2-4 pin.
S
Approx. 3V
Replace S-PCB.
S
OK
OK
OK
OK
OK
OK
OK
OK
OK
INF - 29
NG
A Check the RM1601 and its associated circuits.
NG
R Check circuit around RM3201.
NG
Replace cable.
NG
Replace cable.
NG
Connect it properly or replace RS-232C straight cable.
NG
G Check the IC4003 and its associated circuits.
NG
A A-PCB +3.3V line check.
NG
Replace cable.
NG
S-PCB +3.3V line check.
S