Hitachi P50XR01E, Руководство по обслуживанию

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P50XR01U/E P60XR01U/E
[Picture: DTT troubleshooting]
DTT (MAIN Tuner)
[IWP1] Pin4 (+3.3V)/5(+5.6V)
[IWP2] Pin2/3 (+5.6V)/7/8(+3.3V)
[IW02] Pin2 (+5.6V)/4(+3.3V)
[IW03] Pin1/3 (+2.5V)/5(+1.2V)
[IW04] Pin1/5 (+3.3V)/4(+2.5V)
Check DW01 of SLOT P C B lighting?
Change MAIN P C B or SLOT P C B
Yes
No
d
Are the voltages of
IWP1/IWP2/IW02/IW03IW04 of SLOT
P C B normal?
Change SLOT P C B
No
Yes
Are the signals of
pin10(SDA)/9(SCL)/18(IFD_OUT1)/1
9(IFD_OUT2) of UT01 of Terminal
P C B normal?
No
Yes
Change UT01 of Terminal P C B
Are the signals of
pin37(MCLKo)/35(Mdo0)/27(MoVAL)/26(M
oSYNC)/46(MPEG_PD7) of PW01 of
SLOT P C B normal?
No
Yes
Are the signals of
pin44(MCLKo)/45(Mdo_0)/46(MoVAL)/48(
MoSYNC)/61(MPEG_PDAT_7) of IW01 of
SLOT P C B normal?
No
Yes
Change SLOT P C B
Change MAIN P C B
If no improvement,
exchange SLOT P C B or EMP0 (FFC
cable).
Change MAIN P C B
If no improvement,
exchange FC8 P C B.