Sony STR-DB2000 Service Manual page 70

STR-DA2000ES/DB2000
QQ
3 7 63 1515 0
– MULTI-VIDEO Board –
IC326, 341 TC9274N-016
VSS 1
S1 2
S2 3
S3 4
S4 5
S5 6
S6 7
S7 8
S8 9
S9 10
18BIT 18BIT
LATCH LATCH
S10 11
CIRCUIT CIRCUIT
(L-CH) (R-CH)
S11 12
S12 13
S13 14
S14 15
S15 16
S16 17
TE
L 13942296513
S17 18
S18 19
GND 20
LEVEL SHIFT & SHIFT REGISTER
CK 21
IC1241 MB90089F-G-238-BND
YIN 1
CIN 2
VIN 3
AVCC 4
FSCO 5
VBLK 6
VCC 7
4 FSC
EXS 8
CLOCK
OSCILLATOR
XS 9
CIRCUIT
NTSC/PAL
HSYNC 10 SIGNAL GENERATOR
CIRCUIT
VSYNC 11
www
H/V
EXHSYN 12
SEPARATE
EXVSYN 13
CIRCUIT
.
VSS 14
70
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IC1201 NJM2595M-TE2
42 VDD
VOUT1
40 S1
40 S2
39 S3
38 S4
37 S5
36 S6
35 S7
34 S8
33 S9
32 S10
31 S11
30 S12
29 S13
28 S14
27 S15
26 S16
25 S17
24 S18
23 STB
22 DATA
ANALOG
SWITCH
SERIAL
VIDEO
INPUT
SIGNAL
CONTROL
GENERATOR
CIRCUIT
FOR
DATA
COLOR
BURST
OUTPUT
CONTROL
DISPLAY
x ao u163
CGROM
y
MEMORY
CHARACTER
CONTROL
i
VRAM
DOT-CLOCK
VIDEO PHASE SYNC GENERATOR
CIRCUIT
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2 9
8
1
SW5 2
VIN5 3
SW3 4
VIN4 5
SW4 6
VIN3 7
V– 8
Q Q
3 6 7 1 3 1 5
IC1242 BA7622F-E2-A
28 AVSS
GND 1
27 YOUT
26 COUT
IN1 2
25 VOUT
IN2 3
24 CS
23 SIN
IN3 4
22 SCLK
21 TEST
20 VOC0
19 VOC1
18 VOC2
17 VOB
co
.
16 XD
15 EXD
9 4 2 8
6dB 75Ω
AMP DRIVER
16 V+
6dB 75Ω
AMP DRIVER
15 VOUT2
14 SW1
13 VIN1
12 GND
6dB 75Ω
AMP DRIVER
11 VOUT3
10 SW2
9 VIN2
0 5 8 2 9 9 4 2 8
75OHM
DRIVER
8 OUT1
75OHM
DRIVER
7 OUT2
75OHM
DRIVER
6 OUT3
5 VCC
m
9 9
9 9