Sony HCD-HX50BTR Service Manual page 44

HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
• 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
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
VSS 2
CE 3
HCD-HX50BTR/HX70BTR/HX80R/HX90BTR
IC401 BA5826SFP-E2
1 28
VO1(–)
D.BUFF
27
2
VO1(+)
D.BUFF
LEVEL
D.BUFF
SHIFT 26
IN1 3 D.BUFF
LEVEL
SHIFT
25
RESET 4
24
THERMAL
SHUT-DOWN
REGULATOR
BIAS TRAP
23
REGB 5
VCC 22
REGOUT 6
VCC 21
MUTE
MUTE 7
20
GND 8
9
IN2'
19
IN2 10
LEVEL
LEVEL
SHIFT
D.BUFF
SHIFT
D.BUFF
18
VO2(+)
11
D.BUFF
D.BUFF
17
VO2(–) 12
GND 13
16
OPOUT
14
15
5 VOUT
4 NC
– DAB Board –
IC801 TK11133CSCL-G
GND
5
VO4(–)
OVER HEAT &
VO4(+)
OVER CURRENT
PROTECTION
CONTROL
–
CIRCUIT
IN4
+
BANDGAP
IN4'
REFERENCE
1 2 3
BIAS
– MAIN Board –
VCC
IC501 BD3499FV-E2
VCC
IN3'
A1 1
A2 2
B1 3
B2 4 INPUT
INPUT
IN3
SELECTOR GAIN
C1 5
C2 6
D1 7
D2 8
VO3(+)
SEL2 9
INVERTER
VO3(–)
SEL1 10
RESETt
VOL1 11
VOLUME
VOL2 12
OPIN
TC2 13
TC1 14
TREBLE/
BASS
IC506 BA00BC0WT-V5
VREF
–
DRIVER
+
OVP TSD OCP
1 2 3
44 44
IC802 MM3291CNRE
REGULATOR
VDD 1
4
GND 2
CE 3
IC503 MC14052BDTR2
IC510 MC14052BDTR2
2Y0 1
28 FIL
27 GND
2Y2 2
2-COM 3
PC BUS 26 SDA
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 –
+
4 5
BANDGAP
REFERENCE
1 2
5 VOUT
4 NC
16 VCC
15 1Y2
14 1Y1
13 1-COM
12 1Y0
11 1Y3
10 A
9 B
4
3