Read Sharp LC-32GD9EK (serv.man10) Service Manual online
45
LC-26GA5E
LC-32GA5E
LC-32GD9E
LC-37GD9E
Troubleshooting Table (continued)
30
LC-32/37GD8E/RU
LC-32/37BT8E/RU
TROUBLESHOOTING TABLE
(Continued)
YES
The unit does not enter the DTV mode. Or, the DTV menu does
not appear.
not appear.
NO
MAIN UNIT:
Check around the pin (1) of IC1710(FPGA).
Check around the pin (1) of IC1710(FPGA).
Go to "The unit does not enter the DTV mode. Or, the DTV menu
does not appear."
does not appear."
No video output during DTV reception.
Go to "No video output during DTV reception."
YES
NO
No audio output during DTV reception.
Go to "No audio output during DTV reception."
YES
DTV troubleshooting
NO
Digital UNIT:
Is a voltage supplied from IC4701(3.3V-REG)/IC4704(1.8V-REG)?
Is a voltage supplied from IC4701(3.3V-REG)/IC4704(1.8V-REG)?
D-TUNER UNIT:
Is a voltage of 5V supplied from IC205(SW) and IC206(SW)?
Is a voltage of 5V supplied from IC205(SW) and IC206(SW)?
Is a voltage applied to pin(20) (I2CSEL) of P202?
(High=3.3V)
(High=3.3V)
YES
Do X4001/X4002 oscillate?
Check peripheral circuits of IC4701/IC4704 and pin(7) of IC4701.
Check peripheral circuits of X4001/X4002.
Check peripheral circuits of IC205/IC206.
NO
YES
NO
Is CLK/DATA signal sent to pins (21) and (22) of P202 and pins (1)
and (13) of IC204 (COFDM).
and (13) of IC204 (COFDM).
YES
Check peripheral circuits of IC202(COFDM)/ IC4001(D-Processor).
NO
YES
NO
YES
Does X202 oscillate?
Check IC202(COFDM)/IC4001(D-Processor).
Check peripheral circuits of X202.
NO
YES
The unit does not enter the DTV mode. Or, the DTV menu does not appear.
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