Sony CMT-BX1 Service Manual page 49

– BT Board –
IC903 XC6213B332MR
VIN 1
ON/OFF
CONTROL
CURRENT
LIMIT
VSS 2
CE 3
– MAIN Board –
IC304 R2S15904SP
28 27 26
MUTE
INPUT
SELECTOR
1 2 3
IC308 MM1615ANLE
5
BIAS
REFERENCE
–
+
THERMAL
SHUTDOWN
1 2 3
+
–
VOLTAGE
REFERENCE
25 24
MODE
SELECTOR
INPUT GAIN
INPUT
CONTROL
SELECTOR
4 5 6 7
4
CURRENT
LIMITTER
DRIVER
HCD-BX5BT/CBX1/CBX3
– USB Board –
IC915 R5523N001B-TR-F
EN 1
5 VOUT
4 NC
UVLO
GND 2
THERMAL
SHUTDOWN
FLG 3
23 22 21 20 19 18
MCU
I/F
REF
SURROUND
MUTE
INPUT GAIN
CONTROL
8 9 10 11
IC309 MC14052BDTR2
2Y0 1
2Y2 2
2-COM 3
2Y3 4
2Y1 5
INH 6
GND 7
GND 8
GATE CURRENT
CONTROL LIMIT
FLAG
DELAY
17 16 15
TONE CONTROL
L-CH BASS/TREBLE
TONE CONTROL
R-CH BASS/TREBLE
12 13 14
16 VCC
15 1Y2
14 1Y1
13 1-COM
12 1Y0
11 1Y3
10 A
9 B
5 OUT
4 IN
47