T Board - Sony KF-50SX100K Service Manual

N BOARD : IC2502 BA7655AT
Vcc IN2 CTL2 OUT2
8 7 6 5
VCR2
VCR1
1 2 3 4
IN1 CTL1 OUT1 GND
N BOARD : IC2505 CXA1875AM
13 12 11
LEVEL CONVERTION
SDA 14
LEVEL
CONVERTION
SCL 15
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
• N BOARD WAVEFORMS
1 2 3
1.2Vp-p (H) 1.2Vp-p (H) 1.0Vp-p (H)
5 6
1.2Vp-p (H) 1.2Vp-p (H)
Schematic diagram
H1 H2 H4 T
? board
– 120 –
1 2
A
B
C
D
1 2 9 10
LEVEL CONVERTION
E
F
LATCH
–
+
Vcc
G
Vcc
REG
8 16
H
4
I
1.0Vp-p (H)
J
Schematic diagram
N
board /
3 4
5 6 7
– 121 –
10 11
8 9 12
– 122 –
15 16
13 14