Sony HCD-HX50BTR Service Manual page 44

HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
Q Q
3 7 6 3 1 5 1 5 0
• 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
– USB Board –
IC915 R5523N001B-TR-F
5 OUT
T E
L 1 3 9 4 2 2 9 6 5 1 3
GATE CURRENT
EN 1
CONTROL LIMIT
4 IN
UVLO
FLAG
GND 2
DELAY
THERMAL
SHUTDOWN
FLG 3
– BT Board –
IC903 XC6213B332MR
VIN 1
ON/OFF
CONTROL
+
CURRENT
LIMIT
–
VOLTAGE
REFERENCE
w w w
VSS 2
CE 3
HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
IC401 BA5826SFP-E2
1
VO1(–)
D.BUFF
2
VO1(+)
D.BUFF
D.BUFF LEVEL
SHIFT
IN1 3 D.BUFF
LEVEL
SHIFT
4
RESET
THERMAL
SHUT-DOWN
REGULATOR
BIAS TRAP
REGB 5
VCC
6
REGOUT
VCC
MUTE
MUTE 7
GND 8
9
IN2'
IN2 10
LEVEL
LEVEL
SHIFT
D.BUFF
SHIFT
D.BUFF
VO2(+)
11
D.BUFF
D.BUFF
VO2(–)
12
GND 13
OPOUT 14
5 VOUT
4 NC
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8
– DAB Board –
IC801 TK11133CSCL-G
28 GND
5
27 VO4(–)
OVER HEAT &
26 VO4(+)
OVER CURRENT
PROTECTION
CONTROL
–
25 CIRCUIT
IN4
+
BANDGAP
24 IN4'
REFERENCE
1 2 3
23
BIAS
22 VCC – MAIN Board –
IC501 BD3499FV-E2
21 VCC
20 IN3'
A1 1
A2 2
B1 3
B2 4 INPUT INPUT
19 IN3
GAIN
C1 5 SELECTOR
C2 6
D1 7
Q Q
3 7 6 3
D2 8
18 VO3(+)
SEL2 9
INVERTER
17 VO3(–)
SEL1 10
16 RESETt
VOL1 11
VOLUME
VOL2 12
15 OPIN
TC2 13
TC1 14
TREBLE/
BASS
IC506 BA00BC0WT-V5
VREF
–
DRIVER
+
OVP TSD OCP
1 2 3
u 1 6 3
.
44 44
2 4
9 9 8
IC802 MM3291CNRE
REGULATOR
VDD 1 5
4
GND 2
CE 3 4
IC503 MC14052BDTR2
IC510 MC14052BDTR2
2Y0 1
28 FIL
27 GND
2Y2 2
2-COM 3
26 SDA
PC BUS
1 5 1 5 0 8 9 2 4
LOGIC
25 SCL
2Y3 4
2Y1 5
24 VCC
INH 6
23 OUT1
GND 7
SURROUND
GND 8
22 SB1
21 SR
20 SB2
19 OUT2
18 BCB1
17 BCA1
16 BCA2
15 BCB2
IC507 TK11150CSCL-G
VCC
5
OVER HEAT &
OVER CURRENT
PROTECTION
CONTROL
–
CIRCUIT
m
+
4 5
BANDGAP
c o
REFERENCE
1 2
2
9 9
VOUT
NC
16 VCC
15
1Y2
14 1Y1
9 8 2 9 9
13 1-COM
12 1Y0
11 1Y3
10 A
9 B
4
3