Read Sony STR-DE400 Service Manual online
35
STR-DE400
IC203 NJM2279D
1
3
V1
2
S1
13
S1
8
+5V
9
11
M
10
MON
5
VOUT
6
GND
4
S2
7
GND
14
-5V
V2
V3
12
75
Ω
4.45k
Ω
4.14k
Ω
75
Ω Driver
6.3dB
6dB Amp
20k
Ω
20k
Ω
75
Ω
4.45k
Ω
4.14k
Ω
75
Ω Driver
6.3dB
6dB Amp
20k
Ω
20k
Ω
20k
Ω
– DISPLAY Board –
IC100 PT6315
1
2
3
4
5
4-bit latch
24-bit output latch
12-bit shift register
Data selector
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
Serial
interface
OSC
Timing generator
key scan
Display memory
24 bits x 12 words
Key data memory
(2 x 16 bits)
Command decoder
segment driver
Grid driver
Multiplexed driver
39
40
41
42
43
44
LED1
LED2
LED3
LED4
OSC
DOUT
DIN
CLK
STB
KEY1
KEY2
VSS
VDD
SEG1/KS1
SEG2/KS2
SEG3/KS3
SEG4/KS4
SEG5/KS5
SEG6/KS6
SEG7/KS7
SEG8/KS8
SEG9/KS9
SEG10/KS10
SEG20/GRID9
SEG21/GRID8
SEG22/GRID7
SEG23/GRID6
SEG24/GRID5
GRID4
GRID3
GRID2
GRID1
VDD
VSS
SEG11/KS11
SEG12/KS12
SEG13/KS13
SEG14/KS14
SEG15/KS15
SEG16/KS16
VEE
SEG17/GRID12
SEG18/GRID11
SEG19/GRID10
– VIDEO Board –
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