Panasonic PT-RZ470 Series

INF - 22
6. 4. Troubleshooting
K
P
P
P
B B
* The letters in the left of inspection items indicate the P.C. Boards related to their respective descriptions.
* Please be sure to perform check, after assembling a lighting block completely.
■ Power does not turn ON. (The power indicator does not light in red.)
* If the top cover is not attached well, inter- lock will work.
A
A2 connector is removed and checked short-circuits.
1-2, 7-8, 11-12
A Replace A-PCB.
B
Confirm the short circuit of each parts.
Q9731(D-S),Q9732(D-S),Q9731(D-S),Q9732(D-S)
B Replace B-PCB.
Confirm each cable and connector connection.
K1～P1、P3～A2
Connect the connectors or install top cover properly.
Follow the section "A-PCB operation checks".
■ The projector does not change from standby mode to an operating mode.
(The power indicator does not change from red to green.)
Confirm the fuse. ⇒ F8101、F8201 Replace P-PCB.
P
・Confirm the short circuit of ZNR. ⇒Z8101, Z8102
・Confirm the short circuit of each parts.
D8101,D8106,D8107,Q8102(D-S),Q8103(D-S)
・Confirm the short circuit of each parts.
D8102,D8103,D8108,D8109
Replace P-PCB.
Confirm the fuse. ⇒ F9701 Replace B-PCB.
Follow the section "A-PCB operation checks".
Confirm the connection of each connectors. Connect properly.
A
A2 connector is removed and checked short-circuits.
1-2, 7-8, 11-12
A Replace A-PCB.
A
13 pin output voltage of A2 connector checks
whether it has changed from "Hi" to "Low".
OK
NG
NG
OK
①
OK
NG
NG
OK
NG
①
OK
NG
OK
NG
NG
OK
NG
OK
OK
②