Sony STR-ZA5000ES Service Manual page 77

• IC Block Diagrams
– ANALOG Board –
IC241 MM1839A50NRE
CONT 1 BIAS
CURRENT
LIMIT
–
+
THERMAL
VOLTAGE
SHUTDOWN
REFERENCE
GND 2
NC 3
IC251, 281 BD34702KS2
46 45 44 43
Main
Sub1
Sub2
SBLIN 47
48
SBRIN
49
SLIN
SRIN 50
Mode
selector
CIN 51
52
SWIN
53
FLIN
54
FRIN
FR FL SW
Volume Volume Volume
55
GND
ADC
ADCL 56
57
ADCR
GND 58
GND 59
GND 60
61
GND
GND 62
63
GND
CHIP 64 Logic
1 2 3 4 5 6 7
5 VIN
REGULATOR
4 VOUT
42 41 40 39 38 37 36
Mode Mode Mode
selector selector selector
7.1 ch OUT +32dB ~
-95dB,-INF/0.5dB step
C SR SL SBR SBL
Volume Volume Volume Volume Volume
8 9 10 11 12 13 14 15
35 34 33
32
INR7
31 INL7
30
INR8
29
INL8
28
GND
Rec
27
RECR
26
RECL
Rec Selector
Sub
25 SUBR
24
SUBL
Sub Selector
SUBOUT
+6dB~-16dB/1 dB step
23
GND
-6dB~-56dB/2dB step
MUTE
HP OUT
22 GND
FRONT/MUTE
21 GND
20
GND
16 17 19
18
STR-ZA5000ES
77