Sony STR-DB1070 Service Manual - Page 39
STR-DB1070: AEP, UK, E and Chinese models, PC2581V MAIN Board IC603: STR-DB1070
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Page 39 highlights
IC307 MB90089F-G-238-BND (VIDEO Board (STR-DB1070)) YIN 1 CIN 2 VIN 3 AVCC 4 FSCO 5 VBLK 6 VCC 7 EXS 8 XS 9 HSYNC 10 VSYNC 11 EXHSYN 12 EXVSYN 13 VSS 14 ANALOG SWITCH 4 FSC CLOCK OSCILLATOR CIRCUIT VIDEO SIGNAL GENERATOR CIRCUIT FOR COLOR BURST SERIAL INPUT CONTROL DATA NTSC/PAL SIGNAL GENERATOR CIRCUIT H/V SEPARATE CIRCUIT DISPLAY MEMORY CONTROL VRAM VIDEO PHASE SYNC OUTPUT CONTROL CGROM CHARACTER DOT-CLOCK GENERATOR CIRCUIT 28 AVSS 27 YOUT 26 COUT 25 VOUT 24 CS 23 SIN 22 SCLK 21 TEST 20 VOC0 19 VOC1 18 VOC2 17 VOB 16 XD 15 EXD STR-DB870/DB1070 IC308 NJM2296D (VIDEO Board) IC750, 752 NJM2296D (S-VDIEO Board) V+ Vout2 SW1 Vin1 GND Vout3 SW2 Vin2 16 15 14 13 12 11 10 9 S6 S5 S1 S4 S3 S7 S2 12345678 Vout1 SW5 Vin5 SW3 Vin4 SW4 Vin3 V- IC309, 311 LA7213 (VIDEO Board (STR-DB1070: AEP, UK, E and Chinese models)) SYNC SEP V-SYNC SEP 1 23 45 IC403, 503, 603 µPC2581V (MAIN Board (IC603: STR-DB1070)) BIAS CIRCUIT PROTECTOR REG DRIVE PRE DRIVE PRE DRIVE DRIVE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 MUTE + VOUT1 - VOUT1 COMP1 MF1 IN1 GND IN2 NF2 COMP2 - VOUT2 + VOUT2 VCC1 VCC2 VEE V IN HD VSS VD VDD 39
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