Sony PMC-MD55 Service Manual page 177

– AU/JACK Board –
IC351 BH3863F-E2
24 23
DINAMIC
FILTER
BASS
TREBLE
0dB/6dB
BASS VOL
1 2 3
– CD MOTOR Board –
IC1001 BA6892FP-E2
28 27 26 25 24
CH3
VCC
MUTING
CH4
MUTING
–
+
–
+
THERMAL
SHUTDOWN
+
–
+
–
CH1
MUTING
CH2
MUTING
1 2 3 4 5
– CD O/C Board –
IC711 BA6289F-E2
8 7 6
THERMAL POWER
DRIVER
SHUTDOWN SAVE
1 2 3
22 21 20 19 18 17 16
DIGITAL
CONTROL
8
4 5 6 7
23 22 21 20 19 18 17 16 15
PVCC
DRIVER DRIVER
CH3 CH4
DRIVER DRIVER
CH2 CH1
PVCC
6 7 8 9 10 11 12 13 14
5
CONTROL
LOGIC
4
15 14
DINAMIC
FILTER
BASS
0dB/6dB
VOL BASS
9 10 11 12
– WOOFER AMP (A) Board –
IC812 TDA7296
BIPOLAR
TRANSCONDACTANCE
INPUT STAGE
–
+
1 2 3 4 5
– 107 –
13
TREBLE
THERMAL
SHUTDOWN
MOS SHORT
MOS GAIN &
LEVEL SHIFTING OUTPUT CIRCUIT
STAGE STAGE PROTECTION
STANDBY/
MUTE
BOOST-
STRAP
6 7 8 9 10 11 12 13 14 15