Karaoke Circuit - Hitachi DV-P250U Manual De Servicio

KARAOKE CIRCUIT

(Only available at DVD-5500/DVD-5300 models)
24
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NO MIC SOUND
IS THERE DISC
No
S O U N D ?
Yes
A R E
SIGNAL AT IC2401
No
1 7
?
Yes
A R E
SIGNAL AT IC2404
No
5 8
?
Yes
CHECK IC2404,
IC1201, IC1505 ETC.
NO ECHO/KEY
C O N T R O L E F F E C T
R E M O T E
C O N T R O L A C T I O N No
O K ?
Yes
CHECK IC1201 ETC.
N O S O U N D O U T P U T


C H E C K R O U T E
FROM MIC JACK
J1763/1764 TO
IC2401
3 5


CHECK IC2401 ETC.
CHECK MIC
VOLUME RV1762,
RV1763 ETC.
C H E C K R E M O T E
C O N T R O L L E R A N D
RECEIVE CONTROL
CIRCUIT ETC.
Chapter 1