Display Board - Sony STR-KS600PM Service Manual

STR-KS600PM/KS600PW
– DISPLAY Board –
IC700 µPD16315GB-3BS
LED1 1
LED2 2
LED3 3
LED4 4
OSC 5 OSC
DOUT 6
DIN 7
SERIAL
INTERFACE
8
CLK
STB 9
KEY1 10
KEY2 11
– SMPS Board –
IC820 SI-8033JF
OVER
CURRENT
REGULATOR
PROTECTOR
RESET
ON/OFF
OSC
SOFT
COMPARATOR
START
+
–
+
–
ERROR AMP
1
IC822 SI-3025KS-TL
VC 1
VIN 2
REGULATOR
THERMAL
BLOCK
SHUT DOWN
VO 3
SENSE 4
32
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
13
12
LATCH
&
DRIVER
OVER HEAT
PROTECTOR
VREF
2 3 4 5
8 GND
7 GND
6 GND
5 GND
42 41 38 37 36
40 39
12 4
GRID
DRIVER
8
8
MULTIPLEXED
DATA
SELECTOR DRIVER
8
24 16
SEGMENT
DRIVER
15 16 17 18 19 20
14
IC821 SI-8120S
REGULATOR
OSC RESET
+
–
COMPARATOR
+
–
ERROR AMP
1
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
OVER
CURRENT
PROTECTOR
LATCH
&
DRIVER
OVER HEAT
PROTECTOR
VREF
2 3
4 5