Sony STR-DB1070 - Fm Stereo/fm-am Receiver Service Manual page 39

IC307 MB90089F-G-238-BND (VIDEO Board (STR-DB1070))
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
H/V
EXHSYN 12
SEPARATE
EXVSYN 13
CIRCUIT
VSS 14
IC308 NJM2296D (VIDEO Board)
IC750, 752 NJM2296D (S-VDIEO Board)
V+ Vout2 SW1 Vin1 GND
16 15 14 13 12
S6
S1
S4
S5
S3
1 2 3 4 5
Vout1 SW5 Vin5 SW3 Vin4
IC403, 503, 603 PC2581V (MAIN Board (IC603: STR-DB1070))
PROTECTOR
REG DRIVE
DRIVE
5
1 2 3 4
ANALOG
SWITCH
VIDEO
SIGNAL
CONTROL
GENERATOR
CIRCUIT
FOR
COLOR
BURST
CONTROL
DISPLAY
MEMORY
CHARACTER
CONTROL
VRAM
DOT-CLOCK
GENERATOR
VIDEO PHASE SYNC
Vout3 SW2 Vin2
11 10 9
S7
S2
6 7 8
SW4 Vin3 V-
BIAS CIRCUIT
PRE PRE
DRIVE
DRIVE
6 8 9
7 10 11
28 AVSS
27 YOUT
26 COUT
25 VOUT
24 CS
SERIAL
INPUT 23 SIN
22 SCLK
DATA
21 TEST
20 VOC0
19 VOC1
OUTPUT
18 VOC2
17 VOB
CGROM
16 XD
15 EXD
CIRCUIT
IC309, 311 LA7213 (VIDEO Board
(STR-DB1070: AEP, UK, E and Chinese models))
SYNC V-SYNC
SEP SEP
1 2 3 4 5
12 13 14 15
STR-DB870/DB1070
39