Panasonic PT-RZ470 Series, Руководство по обслуживанию, Страница: 35 / 84

INF - 28
E
A
A A
A A
A FM
A
A
Check the output of IC1409.
L1414 : 12V, IC1406
⑪
: 3.3V, C1561 : 1.8V/0V,
L1406 : 1.8V, R1506 : 1.1V, C1582 : 5V/0V,
R1530 : 3.3V, R1672
：
3.3V
A Check the IC1409 and its associated circuits.
Replace A-PCB.
Check connector A1-FM1.
Replace DMD block.
●
D-PCB operation checks
D
Check the resistance value of DR1 connector 1-2 pin.
(more than 50kΩ)
Check the resistance value of DR2 connector 1-2 pin.
(more than 50kΩ)
D Replace D-PCB.
Check cable connection of the A1 connector. Connect it properly.
Check the clock frequency of X1402(20MH
ｚ
). Check the X1402 and its associated circuits.
Check the IC1405, IC1406 and IC1407. Replace IC1405, IC1406 or IC1407.
Check the A-PCB and B-PCB.
■
Network does not work.
DIGITAL LINK mode of NETWORK menu is "ETHERNET". Select the "ETHERNET", in DIGITAL LINK mode.
Projection image of DIGITAL LINK can be checked. Follow the section "DIGITAL LINK input checks".
D
Check the resistance value.
R9002, R9004, R9041, R9043, R9101, R9103,
R9141, R9143 (10
～
22KΩ)
D Replace D-PCB.
D
Check the resistance value.
R9201, R9203, R9251, R9253, R9301, R9303
(10
～
22KΩ)
D Replace D-PCB.
Check the IC2301 and its associated circuits.
NG
OK
NG
OK
NG
OK
NG
OK
NG
NG
OK
NG
OK
NG
YES
NO
NO
YES
YES
NO