Block Diagram - Key/Display Section - Sony STR-DE897 Service Manual

Q Q
3 7 6 3 1 5 1 5 0
4-6. BLOCK DIAGRAM — KEY/DISPLAY SECTION —
V SW1
V SW2
V SW3
VIDEO
E
V SW4
SECTION
(Page 18)
CTRL A1
FLASH
PROGRAMMING
T E
L 1 3 9 4 2 2 9 6 5 1 3
+3.3V
(STBY)
w w w
.
86 SW1
SYSTEM
87 SW2
CONTROL
IC1101 (3/4)
88 SW3
89 SW4
FL LAT 57
FL DATA 59
65 A1 IN
BUFFER
60
FL CLK
Q1102 64 A1 OUT
83
X1
X1101
16MHz
EEPROM
82 X0
IC1131
SDA
SDA 5 34
SIRCS 54
SCL
6 33 SCL
ENC A 29
S141
/ I ENC B 30
I
56
POWER KEY
VOL ENC A 45
CNP503
VOL ENC B 46
FLASH1
1
28 FLASH1
FLASH2
2 27 FLASH2
MD2
7 51 MD2
MD0
6 49 MD0 FUNCTION_JOG_1A 32
RESET
5 FUNCTION_JOG_1B 31
A/D0 38
IC1111
2 1 77 RSTX
RESET
A/D1 39
A/D2
40
x a o
y
i
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8
FL DISPLAY DRIVER
IC100
P1
61
I
I
P21 41
19 P51
G1
77
15 P15
I
I
17 P17
G16 62
2 XIN
P00,01
X101
22,23
8MHz P03-07
25-31
3 XOUT
P40,41
33-37
14
P43-47
REMOTE
SIRCS
CONTROL
1 OUT
RECEIVER
IC103
1
RV102
3 -/+
RV103
1
MASTER
3
VOLUME
RV104
1
INPUT
3
SELECTOR
Q Q
3 7 6 3
SW NETWORK
S100-106
SW NETWORK
S110-116
SW NETWORK
S120-126
u 1 6 3
.
19 19
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2 4
9 9 8
FL101
VACUUM
FLUORESCENT
DISPLAY
LED DRIVE
Q101,103-106,
108-116 14
D101,103-106,
108-116
1 5 1 5 0 8 9 2 4
m
c o
STR-DE897
2
9 9
9 8 2 9 9