Sony STRDB725, STRDB825 free download

File name Sony-STRDB725_825 rec.pdf

STR-DB725/DB825 SERVICE MANUAL AEP Model UK Model Photo: STR-DB825 SPECIFICATIONS -- Continued on next page -- FM STEREO/FM-AM RECEIVER MICROFILM ­1­ STR-DB725/DB825 3-3. SCHEMATIC DIAGRAM ­ VIDEO INPUT SECTION ­ · See page 43 for IC Block Diagrams. (Page 21) (Page 32) (Page 21) (Page 17) ­ 13 ­ ­ 14 ­ STR-DB725/DB825 3-5. SCHEMATIC DIAGRAM ­ INPUT SECTION ­ · See page 43 for IC Block Diagrams. (Page 22) (Page 21, 22) (Page 22) (Page 37) (Page 25) (Page 26) (Page 32) (Page (Page 14) 37) (Page 31, 32) (Page 33) ­ 17 ­ ­ 18 ­ STR-DB725/DB825 3-7. SCHEMATIC DIAGRAM ­ S-VIDEO SECTION ­ · See page 43 for IC Block Diagrams. (Page 18) (Page 14) (Page 14) (Page 18) (Page 18) ­ 21 ­ ­ 22 ­ STR-DB725/DB825 3-9. SCHEMATIC DIAGRAM ­ SPEAKER SECTION ­ · See page 43 for IC Block Diagrams. (Page 18) (Page 31) (Page 38) (Page 38) (Page 18) (Page 41) (Page 31) (Page 37) (Page 37) ­ 25 ­ ­ 26 ­ STR-DB725/DB825 3-12. SCHEMATIC DIAGRAM ­ DISPLAY SECTION ­ · See page 11 for Waveforms. · See page 46 for IC Pin Function. (Page 33) (Page 34) (Page 34) (Page 34) (Page 26) (Page 38) (Page 26) (Page 17,18) (Page 14) (Page 17) ­ 31 ­ ­ 32 ­ STR-DB725/DB825 3-13. SCHEMATIC DIAGRAM ­ FRONT PANEL SECTION ­ (Page 32) (Page 32) (Page 32) (Page 31) (Page 18) ­ 33 ­ ­ 34 ­ STR-DB725/DB825 3-15. SCHEMATIC DIAGRAM ­ POWER AMP SECTION ­ (Page 25) (Page 18) (Page 25) (Page 17) (Page 41) (Page 41) (Page 25) (Page 31) (Page 26) ­ 37 ­ ­ 38 ­ STR-DB725/DB825 3-17. SCHEMATIC DIAGRAM ­ TRANS SECTION ­ (Page 38) (Page 38) (Page 26) ­ 41 ­ 3-19. IC BLOCK DIAGRAMS IC001, 601, 701 uPC2581V BIAS CIRCUIT PROTECTOR REG 1 MUTE DRIVE 2 +VOUT1 3 ­VOUT1 4 COMP1 PRE DRIVE 5 NF1 6 IN1 7 GND PRE DRIVE 8 IN2 9 NF2 10 COMP2 DRIVE 11 ­VOUT2 12 +VOUT2 13 VCC1 14 VCC2 IN 15 VEE 9 NC IC106 BA6208 SWITCH MOTOR DRIVE SWITCH MOTOR DRIVE REG 1 NC 2 INPUT 1 3 INPUT 2 4 NC 5 GND 6 Vcc 7 OUTPUT 2 8 OUTPUT1 IC251 NJM2296D 16 V+ Vout2 15 SW1 14 Vin1 13 12 GND Vout3 11 SW2 10 Vin2 9 S6 S1 S4 S5 S7 S2 S3 1 Vout1 2 SW5 3 Vin5 4 SW3 5 Vin4 6 SW4 7 Vin3 V8 IC302 LC7822 1 IN 2 3 OUT 4 5 IN 6 7 OUT 8 9 IN 10 OUT VEE 11 12 LEVEL SHIFT 30 29 IN 28 27 OUT 26 25 IN 24 23 OUT 22 21 20 OUT 19 VDD DI CONTROL CE 13 14 LATCH 18 RESET 17 S CL 15 SHIFT RESISTOR 16 VSS ­ 43 ­ 36 35 34 33 32 VDD 31 30 29 28 27 26 AGND 25 24 23 22 21 20 OSC PDM-COUT PDM SRA1-8K R+DELAY P B INV-PHASE R B L-R 20KH-L.P.F. 20K DEC 20K 20K 20K R B L+R -6dB R B B-NR R-STEREO P B 5K/7K-L.P.F. L+DELAY VOL/MUTE RS-TRIM LS-TRIM VREF 14 VSS 1 2 CLK 3 DATA 4 ENABLE 5 6 7 DC-LS 8 9 DC-IN VCC 10 11 L-IN 12 R-IN 13 S-IN 15 FCL-IN 16 FCR-IN 17 18 FCLS-IN FCRS-IN DCUT L-R-RCT L+R-RCT IC401 CXA8079S CT-OUT2 CM-CAP MIXOUT FCC-IN2 ENABLE R-BPF1 R-BPF2 R-BPF3 CT-IN2 R-OUT S-OUT C-OUT L-OUT DCUT OSC1 DATA CLK VCS-TH RS-OUT 19 VCS1 LS-OUT DC-RS R-OUT DC-OT IC400 CXA8081S L-OUT NR-R NR-C 48 47 46 45 44