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TROUBLESHOOTING GUIDE
GOOD PICTURE BUT NO SOUND
Replace FUSE RESISTOR (R517).
Check speaker and the
peripheral circuit.
Check Sound +B line.
Yes
Is the voltage at pin
1 corrector of Q351
DC12V ?
Yes
Yes
Is the voltage at CP301
changed with the volume
up or down key ?
No
No
No
No
Yes
Is FUSE RESISTOR
(R517) broken ?
Is the voltage at EMITTER
of Q357 DC15V ?
Check Q357, Q358 and the
peripheral circuit.
Check Q351, Q352 and the
peripheral circuit.
E-3
Содержание VX-T1470 PH
Страница 26: ...ELECTRICAL ADJUSTMENTS 38 9MHz Fig 3 3 D2 3...
Страница 77: ......
Страница 106: ...920074 Printed in Japan 2 11 IKENOHATA 1 CHOME TAITO KU TOKYO 110 8710 JAPAN TEL 03 3827 3111...