Daewoo DSC-30W60N, Руководство по обслуживанию

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Troubleshooting charts
DTV Channel Trouble
When NO Signal Searching is not display
Select Input Select on the Setup Menu, and Check
Check Signal Strength.
Check tuner power to pins 6, 11, and 15 of U101.
Check IF signal to pin 19 of U101. Check AGC to pin 3 of U101.
Check TS stream signal to pins 122,
123, 124, 125 of IC100.
Check B+, Clock and IIC Bus to
pins 94, 104, and 105 of IC100.
Check Please Back-end A/V function.
Change IC100
NO
Change Tuner
U101.
YES
NO
YES
NO NO
END
YES