Read Sony MEX-XB100BT Service Manual online
MEX-XB100BT
46
• IC Block Diagrams
– MAIN Board –
IC402 BD3468FV-E2
IC402 BD3468FV-E2
IC702, 1001 BU33TD3WG-TR
IC703, 704 BU15TD3WG-TR
IC703, 704 BU15TD3WG-TR
IC501 BU4228F-STR
A1 1
INPUT SELECTOR
(1 SINGLE-END AND 5 STEREO ISO)
SUB GAIN
ADJUST
I2C BUS
LOGIC
2ND ORDER LOW-PASS FILTER
INPUT GAIN
OUTC
40
A2 2
BP1 3
BP2 4
CP1 5
CN 6
CP2 7
ISO
GND
AMP
ISO
GND
AMP
ISO
GND
AMP
ISO
GND
AMP
DP1 8
DN 9
DP2 10
ISO
GND
AMP
ISO
GND
AMP
EP1 11
EN 12
EP2 13
ISO
GND
AMP
ISO
GND
AMP
FP1 14
FN1 15
ISO
GND
AMP
FN2 16
FP2 17
MIN 18
BN 19
HIVOLB 20
ISO
GND
AMP
OUTS
39
OUTR1
38
OUTR2
37
OUTF1
36
OUTF2
35
INF2
34
IG1
28
IG2
27
VCCL
26
INF1
33
INR2
32
INR1
31
INS
30
INC
29
FADER
ATT
FADER
ATT
FADER
ATT
LEVEL
SHIFT
LEVEL
SHIFT
FADER
ATT
FADER
ATT
FADER
ATT
FADER
BOOST
BOOST
FADER
BOOST
BOOST
FADER
BOOST
BOOST
FADER
BOOST
BOOST
FADER
BOOST
BOOST
FADER
BOOST
BOOST
+
+
VREF
REG (4.15V)
25
GND
24
SDA
23
SCL
22
VCCH
21
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
MAIN GAIN
ADJUST
FRONT
SELECTION
REAR
SELECTION
SUB
SELECTION
–
+
VDD 2
GND 1
VOUT
4
CT
3
VREF
2
GND
1
VIN
VOUT
5
VOLTAGE
REFERENCE
3
STBY
NC
4
STANDBY
OVER CURRENT
PROTECTION
THERMAL
SHUTDOWN
+
–
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