Sony STR-DA1ES Service Manual page 48

STR-DA1ES/DB780
IC1501 AK4527K (DIGITAL Board)
44 43 42 41 40 39 38 37 36 35 34
SDOS 1
I2C 2
SMUTE 3
BICK 4
LRCK 5
AUDIO
SDTI1 6
INTERFACE
SDTI2 7
SDTI3 8
SDTO 9
FORMAT
DAUX 10
CONVERTER
DFS 11
12 13 14 15 16 17 18 19 20 21 22
IC1600 µPD16315GB-3BS (DISPLAY Board)
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
48
33 DZF2
32 RIN+
31 RIN–
INPUT
CIRCUIT
30 LIN+
29 LIN–
28 ROUT1
27 LOUT1
26 ROUT2
OUTPUT
CIRCUIT
25 LOUT2
24 ROUT3
23 LOUT3
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
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