Sony hcd-hdx501W Service Manual page 79

QQ
3 7 63 1515 0
IC303, 304 MC14052 BDR2
2Y0 1
2Y2 2
2-COM 3
2Y3 4
2Y1 5
INH 6
GND 7
GND 8
IC310 MM1508XNRE
SW 1
OUT 2
6dB
DRIVER
TE
VCC L 13942296513 3
IC804 µPD16315GB-3BS
LED1 1
LED2 2
LED3 3
LED4 4
OSC
OSC 5
DOUT 6
7
DIN
SERIAL
www
INTERFACE
CLK 8
STB 9
KEY1 10
KEY2 11
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16 VCC
15 1Y2
14 1Y1
13 1-COM
12 1Y0
11 1Y3
10 A
9 B
6 IN1
5 GND
4 IN2
CLAMP CLAMP
BIAS
4-BIT LATCH
12-BIT SHIFT
KEY DATA MEMORY
(2 x 16 BITS)
TIMING GENERATOR
KEY SCAN
DISPLAY MEMORY 24-BIT OUTPUT
24 BITS x 12 WORDS
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COMMAND
DECODER
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2 9
8
IC309 MM1228XFBE
VIN1 1
SW1 2
VIN2 3
CTL3 4
– FL Board –
IC802 BU2099FV
CONTROL
CIRCUIT
Q Q
3 6 7 1 3 1 5
1 2 3 4
44 43 42 41 40 39
12 4
REGISTER
8
8
DATA
SELECTOR
8
24 16
LATCH
co
DIMMING
CIRCUIT
.
12 13 14 15 16
HCD-HDX500/HDX501W
9 4 2 8
GND
8
VOUT
7
VCC
6
BIAS
5 IN3
20 19 18 17 16 15 14 13 12 11
12 BIT
SHIFT
REGISTER
OUTPUT
12 BIT
BUFFER
0 5 8 2 9 9 4
STORAGE
(OPEN DRAIN)
REGISTER
5 6 7 8 9 10
38 37 36 35 34
4
GRID
DRIVER
33 SEG19/GRID10
32 SEG18/GRID11
31 SEG17/GRID12
8
MULTIPLEXED
30 VEE
DRIVER
29 SEG16/KS16
28 SEG15/KS15
27 SEG14/KS14
16
SEGMENT
m
DRIVER
26 SEG13/KS13
25 SEG12/KS12
24 SEG11/KS11
23 SEG10/KS10
17 18 19 20 21 22
9 9
2 8 9 9
79