Sharp LC-22DV200E - Page 28

TROUBLESHOOTING GUIDE
THE PICTURE APPEARS,
BUT THE AUDIO DOES NOT
APPEARS. (AT RF MODE)
Is CD301 connected?
Is there signal at pins
1 and 4 of CD301?
Is there signal at pins 2
and 4 of IC301?
Connect CD301.
Change SP301 and SP302.
Check IC301 and peripheral
circuit.
Yes
Yes
Yes
No
No
E-2
Is there signal at pins 17
and 18 of IC4303?
Change TU5801.
Check IC4303 and peripheral
circuit.
Yes
No
No
Is there signal at pin 16
of TU5801?
Check IC800 and peripheral
circuit.
Yes
No
E-2