Sony STR-KG800 Service Manual page 51

IC220 NJM2586AM
CH1 IN1 1
SW1 2
BIAS
CONT2
CH1 IN2 3
SW2 4
BIAS
CH1 IN3 5
GND 6
BIAS
V+1 7
CH2 IN1 8
GND 9
BIAS
CONT2
CH2 IN2 10
GND 11
BIAS
CH2 IN3 12
BIAS
– DISPLAY Board –
IC100 PT6315
LED1 1
LED2 2
LED3 3
LED4 4
OSC 5 OSC
DOUT 6
DIN 7
SERIAL
INTERFACE
CLK 8
STB 9
KEY1 10
KEY2 11
6dB 75
AMP DRIVER
CONT1
24 CH1 OUT
23 PS
6dB 75
AMP DRIVER
CONT1
22 CH2 OUT
21 V+2
6dB 75
AMP DRIVER
CONT1
20 CH3 OUT
19 GND
18 V–2
17 CH3 IN1
BIAS 16 V–1
CONT2
15 CH3 IN2
14 GND
BIAS
13 CH3 IN3
BIAS
44 43
4-BIT LATCH
12-BIT SHIFT
REGISTER
KEY DATA MEMORY
(2 x 16 BITS)
TIMING GENERATOR
KEY SCAN
DISPLAY MEMORY 24-BIT OUTPUT
24 BITS x 12 WORDS LATCH
COMMAND DIMMING
DECODER CIRCUIT
12 13
42 41 40 39 38 37 36
12 4
GRID
DRIVER
8
8
DATA MULTIPLEXED
SELECTOR DRIVER
8
24 16
SEGMENT
DRIVER
14 15 16 17 18 19 20
STR-KG800
35 34
4
33 SEG19/GRID10
32 SEG18/GRID11
31 SEG17/GRID12
8
30 VEE
29 SEG16/KS16
28 SEG15/KS15
27 SEG14/KS14
16
26 SEG13/KS13
25 SEG12/KS12
24 SEG11/KS11
23 SEG10/KS10
21 22
51