Ic Block Diagrams - Sony KF-50SX200 Service Manual

4-6. IC BLOCK DIAGRAMS

• A (1/4) BOARD IC1401, 1902
• A (4/4) BOARD IC1004
• M (2/3) BOARD IC9101
• N BOARD IC2505
• S BOARD IC4705
CXA1875AM
13 12 11
LEVEL CONVERTION
SDA
14
LEVEL
CONVERTION
15
SCL
PC DECODER
POWER
ON
RESET
LATCH LATCH LATCH LATCH LATCH
DAC DAC DAC DAC DAC
AMP AMP AMP AMP AMP
3 4 5 6 7
• A (3/4) BOARD IC2003, 2004
TDA7269A
+VS
3
MUTE / ST-BY 5
L + IN 7
4 L OUT
8 L -IN
GND 9
10
R -IN
2 R OUT
R + IN 11
1 6
R-VS L-VS
1 2 9 10
LEVEL CONVERTION
LATCH
–
+
Vcc
Vcc
REG
8 16
• BB (2/6) BOARD IC306
• BB (5/6) BOARD IC505
TLC2932IPWR
VCO VCO VCO VCO PFD
VDD R BIAS IN GND INHIBIT INHIBIT NC
14 13 12 11 10 9 8
VCO
PFD
1/2 DIVIDER
1 2 3 4 5 6 7
LOGIC SELECT VCO FIN-A FIN-B PFD LOGIC
VDD OUT OUT GND
• BB (6/6) BOARD IC707
74VHC123ASJX
16 15 14 13 12 11 10 9
Q
CLR
Q
Q
CLR
Q
1 2 3 4 5 6 7 8
• M (1/3) BOARD IC9100
LM393PS
OUT A 1 8 Vcc
A
NF A 2 7 OUT B
B
IN A 3 6 NF B
GND 4 5 IN A
– 76 –
KF-50SX200/50SX200K/50SX200U
K
• BB (6/6) BOARD IC703
MC14538BFEL
16 VDD
VDD
1-C
1 15 2-C
VDD
1-CR 2
R
C
R
C
2-CR
14
Q
Q
Q
RD
Q
RD
1-RD 3
13 2-RD
1-CK 4
1-CK 12
5 2-CK
1-Q
6 11 2-CK
1-Q 7 10 2-Q
GND 8 9 2-Q
• J (4/5) BOARD IC8452
TDA2822D013TR
Vcc
2
IN1(+) 8
1 OUT1
IN1(–) 7
IN2(+) 6
3 OUT2
IN2(–) 5
4
GND
• N BOARD IC2502
BA7655AT
Vcc IN2 CTL2 OUT2
8
7 6 5
VCR2
VCR1
1 2 3 4
IN1 CTL1 OUT1 GND
RM-905