24
8.0 -
REPAIR PROCEDURE FLOWCHART – AUDIO CIRCUIT
Models CR20310/29411
Check: IC450 pin 6
and 47 signals.
OK ?
Check IC 410
and around
components.
Connect the AV
Input signal.
OK ?
Check IC450 pin
29 signal .
Check : IC450
Pins 26 and 27.
OK ?
Check
R453 and R454
Replace
IC 450
No
No
No
Yes
Yes
Yes
Without sound
Check IC101
C404
IC101 pin 43
Signal.
OK ?
Models CR14300/20300
No
Yes
IC101 pin 28
Signal .
OK ?
Check IC
401 and Mute
Yes
C404
R445/430
No
Q430
C440/431R432
IC490 or VCC
IC101 C409
IC 490 pin
14 Signal.
OK ?
No
No
No
Yes
Yes
Yes
IC 490 pin 13
signal.
OK ?
IC101 pin 43
Signal.
OK ?
Содержание CR14300
Страница 11: ...13 5 2 BLOCK DIAGRAM OF IC 101 TDA9380 ...
Страница 12: ...14 5 3 BLOCK DIAGRAM OF IC 490 BU4052 ...
Страница 14: ...16 5 6 BLOCK DIAGRAM OF IC 450 STEREO DECODER ...
Страница 15: ...17 5 7 BLOCK DIAGRAM OF IC 430 LMC568 PLL SAP ____________________________________________ ...
Страница 64: ......
Страница 65: ......