SANGEAN H201
Instrukcja Serwisowa

TROUBLESHOOTING FLOW CHART
( 1 ) Power can not be turned on

No Check whether the C38 exceeds 2V DC. Yes

Check whether battery supply circuit is normal. Then replace the abnormal parts.

Press the power key and check whether the pin 56 of IC200 exceeds 2V DC. Yes

No Check whether the D203 is normal.

Check the Q200, Q207, and IC201 is normal.

( 2 ) Weak sensitivity in AM band

Check whether the IF waveform is normal. Yes

No

Check the IC1 circuit and adjust T1. Then replace the abnormal parts.

Check whether the tuning voltage range is normal. Yes

No

Check L4 and TC3 replace the abnormal

Do the alignment of 600KHz, 1400KHz minimize the tracking error?

No

Check L1 and TC1 replace the abnormal parts.

17