Pioneer GM-D505 Service Manual page 28

1
7.2 IC
A
*TDA7570
SGND 53
2.5V 54
MUTE 55
REF
STBY 56
Feed R in 57
B
-Vs3 58
-Vs4 59
-Vs+VRefr 60
CHANNEL RIGHT
C
SNR1 61
PROTECTIONS
SNR2 62
GNRS 63
GNR 64
D TDA7294V
2
3
4
10
MUTE
E
9
STBY
1
1 2 3 4
F
28
1
2
RIGHT
CHANNEL
SIGNAL
PROCESSING
INTERFACE
CHANNEL RIGHT CHANNEL LEFT
HSD +
LSD + HSD +
PROTECTIONS
PROTECTIONS
7 13
THERMAL S/C
SHUTDOWN PROTECTION
8 15
5 6 7 8 9 10 11 12
2
3
32 DGND
31 CD
30 CDsel2
TERM. OSC
29 CDsel1
28 FEED L in
CLIP
27 -Vs2
LEFT
CHANNEL
SIGNAL
PROCESSING
INTERFACE
26 -Vs1
25 -Vs+VRefl
CHANNEL LEFT
LSD +
24 SNL1
PROTECTIONS
23 SNL2
22 GNLS
21 GNL
IC's marked by * are MOS type.
Be careful in handling them because they are very
14
liable to be damaged by electrostatic induction.
6
13 14 15
GM-D505/XH/EW
3
4
4