Schematic Diagram - Panasonic SA-HT720P Service Manual

20 Schematic Diagram

SCHEMATIC DIAGRAM-1
DVD MODULE(IN/OUT) CIRCUIT
TO
SPINDLE
MOTOR
ASSY
TO
OPTICAL
PICKUP
UNIT
: +B SIGNAL LINE : CD-DA SIGNAL LINE : MAIN SIGNAL LINE
IC8271
Spindle
Motor Drive
IC8251
Tracking Coil/Focus Coil
Traverse Motor Drive
QR8571
Switch
Q8550
Switch
Q8560
Switch
Q8562
Q8561
LD Drive
LD Drive
Q8552
LD Drive
Q8551
LD Drive
: DVD(VIDEO) SIGNAL LINE : DVD(AUDIO) SIGNAL LINE
IC8451
IC8111
Power Supply IC
IC8691
AND GATE LOGIC IC
IC8695
AND GATE LOGIC IC
45
TO
MAIN
CIRCUIT
(CN2004)ON
SCHEMATIC
DIAGRAM-3
QR8420
Muting Switch
TC8004 TC8010
K8004 K8009
SA-HT720P / SA-HT720PC