Sony CMT-HX3 Service Manual page 156

HCD-HX3/HX5/HX7
• IC Block Diagrams
– CD Board –
IC201 TK63115SCL-G@GT
VIN 1
THERMAL &
OVER CURRENT
PROTECTION
–
VOLTAGE
GND 2
REFERENCE
+
5 VOUT
ON/OFF
VCONT 3 4 NC
CONTROL
IC401 BA5826SFP-E2
28
1 GND
VO1(–)
D.BUFF
27 VO4(–)
2
VO1(+)
D.BUFF
D.BUFF LEVEL
SHIFT 26 VO4(+)
IN1 3 D.BUFF
LEVEL
SHIFT
25
IN4
4
RESET
24
IN4'
THERMAL
SHUT-DOWN
REGULATOR
BIAS TRAP
23
5 BIAS
REGB
22 VCC
VCC
6
REGOUT
VCC 21 VCC
MUTE
MUTE 7
20 IN3'
GND 8
IN2' 9
19 IN3
IN2 10
LEVEL
LEVEL
SHIFT
D.BUFF
SHIFT
D.BUFF
18 VO3(+)
VO2(+) 11
D.BUFF
D.BUFF
17 VO3(–)
VO2(–)
12
GND 13
16 RESETt
OPOUT
14
15 OPIN
HCD-HX3/HX5/HX7
– MAIN Board –
IC302 PST3629NR
OUT 1
VDD 2
–
+
VREF
GND 3
IC304 R2S15904SP
28 27 26 25
MUTE
INPUT INPUT
SELECTOR SELECTOR
1 2 3 4 5
46 46
5 CD
4 NC
24 23 22 21 20 19 18 17
TONE CONTROL
MCU
L-CH BASS/TREBLE
I/F
REF
MODE
SURROUND
SELECTOR
MUTE
INPUT GAIN
CONTROL
INPUT GAIN
CONTROL
TONE CONTROL
R-CH BASS/TREBLE
6 7 8 9 10 11 12
16 15
13 14