5 Troubleshooting
5-3 No Picture (TV, Video 1, Video 2)
Does the signal appear at No
Check replace the tuner.
Pin 1 of CN300?
Yes
Does the signal appear No
Check related circuit of IC302.
at Pin 14, 16 of IC302?
Yes
Does the signal appear at Pin 61,No
Check related circuit of IC300.
62 and 63 of IC300?
Yes
Check X301 and replace mainboard.
MH15NS/MH17NS5-3 |