Service Manual
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.... • Notice that is 0.75 V, so analog meters must not exceed 0.5 mA (500 microamperes.). STR-DB870/DB1070 SAFETY-RELATED COMPONENT WARNING!! NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLI...AC voltmeter to use these instruments. 2. COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY...
.... • Notice that is 0.75 V, so analog meters must not exceed 0.5 mA (500 microamperes.). STR-DB870/DB1070 SAFETY-RELATED COMPONENT WARNING!! NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLI...AC voltmeter to use these instruments. 2. COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY...
Service Manual
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STR-DB870/DB1070 TABLE OF CONTENTS 1. GENERAL 6 3. DISASSEMBLY 3-1. S-VIDEO board, VIDEO Board, Tuner 9 3-4. Schematic Diagram - Schematic Diagram - DIGITAL Board (Conductor Side 21 5-9. S-VIDEO/VIDEO AU Boards 24 5-12. Schematic Diagram - Schematic Diagram - MAIN Board (2/3 28 5-16. Schematic Diagram - Printed Wiring Boards - Schematic Diagram - H.P/MUTING/POWER/SP/VIDEO 3 Boards 35 5-23. Schematic Diagram - Front Panel Section-1 56 6-3. Chassis Section-1 58 6-5. Chassis...
STR-DB870/DB1070 TABLE OF CONTENTS 1. GENERAL 6 3. DISASSEMBLY 3-1. S-VIDEO board, VIDEO Board, Tuner 9 3-4. Schematic Diagram - Schematic Diagram - DIGITAL Board (Conductor Side 21 5-9. S-VIDEO/VIDEO AU Boards 24 5-12. Schematic Diagram - Schematic Diagram - MAIN Board (2/3 28 5-16. Schematic Diagram - Printed Wiring Boards - Schematic Diagram - H.P/MUTING/POWER/SP/VIDEO 3 Boards 35 5-23. Schematic Diagram - Front Panel Section-1 56 6-3. Chassis Section-1 58 6-5. Chassis...
Service Manual
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...; Circled numbers refer to measure • Voltages are critical for electrolytics and tantalums. • All resistors are omitted. • A : B+ Line. • B : B- SECTION 5 DIAGRAMS STR-DB870/DB1070 5-1. BE Note on Schematic Diagram: • All capacitors are omitted. Parts on the pattern face side seen from the parts face are indicated. • Indication of transistor...
...; Circled numbers refer to measure • Voltages are critical for electrolytics and tantalums. • All resistors are omitted. • A : B+ Line. • B : B- SECTION 5 DIAGRAMS STR-DB870/DB1070 5-1. BE Note on Schematic Diagram: • All capacitors are omitted. Parts on the pattern face side seen from the parts face are indicated. • Indication of transistor...
Service Manual
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...FM 75Ω COAXIAL *FM/AM TUNER UNIT STEREO TUNED MUTING R CH GND L CH FM... DET OUT VDD 12V VDD 3.3V FMIF OUT GND DO CLOCK DATA CE *SUPPLIED AS THE ASSEMBLED BLOCK (Page 23) DVD/LD OPTICAL IN DIGITAL TV/SAT OPTICAL IN (DB870) MD/TAPE OPTICAL IN MD/DAT OPTICAL IN (DB1070... (US,CND) 15P (DB1070:AEP,UK,E,CH) 11P ...SYNC DB870:CND /DB1070 P/N GND_A1 CTRL A1...FB1401 21A DIGITAL OPTICAL RECEIVER IC1401 TORX179 R1406 100 ...OPTICAL RECEIVER IC1402 TORX178 DIGITAL OPTICAL RECEIVER IC1403... AUDIO INTERFACE RECEIVER IC1408 LC89056W-E...STR-DB870/DB1070 ...
...FM 75Ω COAXIAL *FM/AM TUNER UNIT STEREO TUNED MUTING R CH GND L CH FM... DET OUT VDD 12V VDD 3.3V FMIF OUT GND DO CLOCK DATA CE *SUPPLIED AS THE ASSEMBLED BLOCK (Page 23) DVD/LD OPTICAL IN DIGITAL TV/SAT OPTICAL IN (DB870) MD/TAPE OPTICAL IN MD/DAT OPTICAL IN (DB1070... (US,CND) 15P (DB1070:AEP,UK,E,CH) 11P ...SYNC DB870:CND /DB1070 P/N GND_A1 CTRL A1...FB1401 21A DIGITAL OPTICAL RECEIVER IC1401 TORX179 R1406 100 ...OPTICAL RECEIVER IC1402 TORX178 DIGITAL OPTICAL RECEIVER IC1403... AUDIO INTERFACE RECEIVER IC1408 LC89056W-E...STR-DB870/DB1070 ...
Service Manual
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... OUT 23 23 VIDEO Board - • See page 38 for Waveforms. • See page 38 for IC Block Diagrams. STR-DB870/DB1070 CN306 4P C318 1 50V C315 470 10V C314 470 10V (DB1070) R320 1k R321 1k R322 1k R329 10 R330 10 R333 4.7k VIDEO BUFFER IC305 BA7622F VCC COUT VOUT YOUT... 50V C329 100p IC307 MB90089F- SCHEMATIC DIAGRAM - 5-10. G-238-BND EXD XD VOB VOC2 VOC1 VOC0 TEST SCLK SIN CS VOUT COUT YOUT AVSS VSS EXVSYN EXHSYN VSYNC HSYNC XS EXS VCC VBLK FSCO AVCC VIN CIN YIN C319 0.1 CT302 20p C322 10p (DB1070:US,CND) JW301 DB1070:AEP, UK,E,CH C316 CT301...
... OUT 23 23 VIDEO Board - • See page 38 for Waveforms. • See page 38 for IC Block Diagrams. STR-DB870/DB1070 CN306 4P C318 1 50V C315 470 10V C314 470 10V (DB1070) R320 1k R321 1k R322 1k R329 10 R330 10 R333 4.7k VIDEO BUFFER IC305 BA7622F VCC COUT VOUT YOUT... 50V C329 100p IC307 MB90089F- SCHEMATIC DIAGRAM - 5-10. G-238-BND EXD XD VOB VOC2 VOC1 VOC0 TEST SCLK SIN CS VOUT COUT YOUT AVSS VSS EXVSYN EXHSYN VSYNC HSYNC XS EXS VCC VBLK FSCO AVCC VIN CIN YIN C319 0.1 CT302 20p C322 10p (DB1070:US,CND) JW301 DB1070:AEP, UK,E,CH C316 CT301...
Service Manual
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...C753 47p R758 75 R759 75 R760 75 R761 75 C760 10 50V C757 0.1 C767 0.1 C763 0.1 DB870:CND /DB1070 * CN751 19P (US,CND) 14P (DB1070:AEP,UK,E,CH) 10P (DB870:AEP,UK) (US,CND) CN751 * MBUS-STATUS-OUT MBUS-TV MBUS-DVD MBUS...) CN202 3P L VIDEO3 R (Page 35) 25 25 S-VIDEO/VIDEO AU Boards - • See page 38 for IC Block Diagrams. STR-DB870/DB1070 J753 MONITOR CTRL S IN J754 TV/SAT CTRL S STATUS IN J755 DVD/LD CTRL S OUT J756 VIDEO 1 CTRL S OUT (US,CND... IN C R750 1k C768 470p C765 470p GND R751 1k R752 1k CONTROL S I/O SWITCH IC751 NJM-2145D- SCHEMATIC DIAGRAM - 5-12.
...C753 47p R758 75 R759 75 R760 75 R761 75 C760 10 50V C757 0.1 C767 0.1 C763 0.1 DB870:CND /DB1070 * CN751 19P (US,CND) 14P (DB1070:AEP,UK,E,CH) 10P (DB870:AEP,UK) (US,CND) CN751 * MBUS-STATUS-OUT MBUS-TV MBUS-DVD MBUS...) CN202 3P L VIDEO3 R (Page 35) 25 25 S-VIDEO/VIDEO AU Boards - • See page 38 for IC Block Diagrams. STR-DB870/DB1070 J753 MONITOR CTRL S IN J754 TV/SAT CTRL S STATUS IN J755 DVD/LD CTRL S OUT J756 VIDEO 1 CTRL S OUT (US,CND... IN C R750 1k C768 470p C765 470p GND R751 1k R752 1k CONTROL S I/O SWITCH IC751 NJM-2145D- SCHEMATIC DIAGRAM - 5-12.
Service Manual
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... page 38 for safety. 5-14. I3 RELAY DRIVE R859 2.2k R860 10k Q808 2SC2785TP- SCHEMATIC DIAGRAM - I2 RELAY DRIVE R852 4.7k R853 10k Q826 2SC2785TP- RELAY DRIVE R830 10 (DB1070) R832 4.7k R831 10k (DB1070) R701 6.8k R451 6.8k R401 6.8k Q701 2SC3623A MUTING Q451 2SC3623A MUTING Q401 2SC3623A MUTING...identifiés par une marque 0 sont critiques pour la sécurité. Replace only with mark 0 are critical for IC Block Diagrams. STR-DB870/DB1070 (Page 18) CN807 21P TUNER-L GND TUNER-R GND FRONT-L GND FRONT-R GND SL GND SR GND C GND DB9-SB/DB8-W GND DB9...
... page 38 for safety. 5-14. I3 RELAY DRIVE R859 2.2k R860 10k Q808 2SC2785TP- SCHEMATIC DIAGRAM - I2 RELAY DRIVE R852 4.7k R853 10k Q826 2SC2785TP- RELAY DRIVE R830 10 (DB1070) R832 4.7k R831 10k (DB1070) R701 6.8k R451 6.8k R401 6.8k Q701 2SC3623A MUTING Q451 2SC3623A MUTING Q401 2SC3623A MUTING...identifiés par une marque 0 sont critiques pour la sécurité. Replace only with mark 0 are critical for IC Block Diagrams. STR-DB870/DB1070 (Page 18) CN807 21P TUNER-L GND TUNER-R GND FRONT-L GND FRONT-R GND SL GND SR GND C GND DB9-SB/DB8-W GND DB9...
Service Manual
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... (CHASSIS) R SURROUND L CENTER TM501 SPEAKERS IMPEDANCE USE 4-6Ω SURROUND BACK (CHASSIS) (CHASSIS) GP801 GND PLEATE C657 100p (DB1070) C607 100p CN803 4P R GND GND L (Page 35) Q824 2SC1815YGR +5V REGULATOR C814 100 16V C815 100 16V O ... by mark 0 or dotted Les composants identifiés par une marque 0 sont line with part number specified. STR-DB870/DB1070 5-15. RELAY DRIVE R820 10 RY803 -1 -2 R814 H5 4.7k D811 1SS133T-72 R818 10k R822 10 Q809...portant le numéro spécifié. SCHEMATIC DIAGRAM - MAIN Board (2/3) - • See page 38 for safety.
... (CHASSIS) R SURROUND L CENTER TM501 SPEAKERS IMPEDANCE USE 4-6Ω SURROUND BACK (CHASSIS) (CHASSIS) GP801 GND PLEATE C657 100p (DB1070) C607 100p CN803 4P R GND GND L (Page 35) Q824 2SC1815YGR +5V REGULATOR C814 100 16V C815 100 16V O ... by mark 0 or dotted Les composants identifiés par une marque 0 sont line with part number specified. STR-DB870/DB1070 5-15. RELAY DRIVE R820 10 RY803 -1 -2 R814 H5 4.7k D811 1SS133T-72 R818 10k R822 10 Q809...portant le numéro spécifié. SCHEMATIC DIAGRAM - MAIN Board (2/3) - • See page 38 for safety.
Service Manual
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...SCHEMATIC DIAGRAM - critiques pour la sécurité. par une pièce portant le numéro spécifié. Ne les remplacer que 29 29 Replace only with mark 0 are critical for IC Block Diagrams. (Page 27) STR-DB870/DB1070... B3 DATA B4 CLK B5 (CHASSIS) J301 4P L PHONO IN R L CD/SACD IN R (DB870) MD/TAPE (DB1070) MD/DAT J302 4P L OUT R L IN R R125 1k A1 R175 1k R126 2.2k R176 2.2k R127 1k A2...B5 R315 10 RY301 D301 1SS133T-72 Q301 2SC2785TPRELAY DRIVE R336 10k R337 4.7k C174 22 50V (DB1070) I1 I2 I3 R850 1k CN808 2P (Page 19) CN806 21P +15V -15V GND GND S-...
...SCHEMATIC DIAGRAM - critiques pour la sécurité. par une pièce portant le numéro spécifié. Ne les remplacer que 29 29 Replace only with mark 0 are critical for IC Block Diagrams. (Page 27) STR-DB870/DB1070... B3 DATA B4 CLK B5 (CHASSIS) J301 4P L PHONO IN R L CD/SACD IN R (DB870) MD/TAPE (DB1070) MD/DAT J302 4P L OUT R L IN R R125 1k A1 R175 1k R126 2.2k R176 2.2k R127 1k A2...B5 R315 10 RY301 D301 1SS133T-72 Q301 2SC2785TPRELAY DRIVE R336 10k R337 4.7k C174 22 50V (DB1070) I1 I2 I3 R850 1k CN808 2P (Page 19) CN806 21P +15V -15V GND GND S-...
Service Manual
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...remplacer que par une pièce portant le numéro spécifié. 31 31 STR-DB870/DB1070 R691 1k R690 4.7k D808 1SS133T-72 (Page 28) CN501 7P +OUT +OUT -OUT -OUT ...,622,672 4.7k (US,CND) 3.3k (AEP,UK) 10k (E,CH) * R803 22k(DB870) 33k(DB1070) R801 22k R803 * R863 Q801 22k 2SA988TP-P R804 10k C806 47p OVER LOAD DETECTOR R858 470k IC803(2/2) ...R618 1.8k Q604,605 CURRENT DETECT Q605 2SA988TP-P R619 15k D605 1SS133T-72 R622 * Q406 2SC1815GR- SCHEMATIC DIAGRAM - AF POWER R3507k11SS1D3535T6-72PROTECTOR C565 0.01 C566 10 50V D555 1SS133T-72 R574 15k R576 47k...
...remplacer que par une pièce portant le numéro spécifié. 31 31 STR-DB870/DB1070 R691 1k R690 4.7k D808 1SS133T-72 (Page 28) CN501 7P +OUT +OUT -OUT -OUT ...,622,672 4.7k (US,CND) 3.3k (AEP,UK) 10k (E,CH) * R803 22k(DB870) 33k(DB1070) R801 22k R803 * R863 Q801 22k 2SA988TP-P R804 10k C806 47p OVER LOAD DETECTOR R858 470k IC803(2/2) ...R618 1.8k Q604,605 CURRENT DETECT Q605 2SA988TP-P R619 15k D605 1SS133T-72 R622 * Q406 2SC1815GR- SCHEMATIC DIAGRAM - AF POWER R3507k11SS1D3535T6-72PROTECTOR C565 0.01 C566 10 50V D555 1SS133T-72 R574 15k R576 47k...
Service Manual
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... R1944 10k R1945 22k S1941 S1942 R1943 4.7k S1943 S1944 S1945 ON SCREEN (DB1070) FM/AM SHIFT R1931 2.2k R1932 4.7k R1933 10k - + PRESET TUNING R1934 22k...(DB870) 2ND ROOM (DB1070) + - DISP/SW Boards - • See page 38 for IC Block Diagrams. STR-DB870/DB1070 P02 P03 P04 P05 P06...DB1070) D1611 SEL6810A-TH12 DIMMER D1612 DIGITAL CINEMA SOUND D1613 6.1CH DECODING R1632 330 D1614 NIGHT MODE R1633 330 R1634 R1635 330 330 R1636 330 D1615 MULTI/2CH A.DIRECT D1616 2CH D1619 SEL5E20CTP15 MULTI CHANNEL DECODING R1638 220 R1637 56 D1617 MODE D1618 A.F.D. 5-20. SCHEMATIC...
... R1944 10k R1945 22k S1941 S1942 R1943 4.7k S1943 S1944 S1945 ON SCREEN (DB1070) FM/AM SHIFT R1931 2.2k R1932 4.7k R1933 10k - + PRESET TUNING R1934 22k...(DB870) 2ND ROOM (DB1070) + - DISP/SW Boards - • See page 38 for IC Block Diagrams. STR-DB870/DB1070 P02 P03 P04 P05 P06...DB1070) D1611 SEL6810A-TH12 DIMMER D1612 DIGITAL CINEMA SOUND D1613 6.1CH DECODING R1632 330 D1614 NIGHT MODE R1633 330 R1634 R1635 330 330 R1636 330 D1615 MULTI/2CH A.DIRECT D1616 2CH D1619 SEL5E20CTP15 MULTI CHANNEL DECODING R1638 220 R1637 56 D1617 MODE D1618 A.F.D. 5-20. SCHEMATIC...
Service Manual
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STR-DB870/DB1070 (Page 27) (Page 28) CN502 11P FSP,RY- Ne les remplacer que par une pièce portant le numéro spécifié. Les composants identifiés par une marque 0 sont critiques pour la sécurité. SCHEMATIC DIAGRAM - Replace only with mark 0 are critical for safety. RY... R483 1k R533 1k R583 1k R633 1k R683 1k R733 1k (CHASSIS) C471 100p 50V C421 100p 50V C436 100p R1704 1k REMOTE CONTROL RECEIVER IC1701 NJL63H400A S1703 DISPLAY S1702 DIMMER S1704 VCC GND OUT C1701 47 16V S1701 SPEAKERS OFF ON R1703 22k R1701 100 R1702 10 CN1701 11P...
STR-DB870/DB1070 (Page 27) (Page 28) CN502 11P FSP,RY- Ne les remplacer que par une pièce portant le numéro spécifié. Les composants identifiés par une marque 0 sont critiques pour la sécurité. SCHEMATIC DIAGRAM - Replace only with mark 0 are critical for safety. RY... R483 1k R533 1k R583 1k R633 1k R683 1k R733 1k (CHASSIS) C471 100p 50V C421 100p 50V C436 100p R1704 1k REMOTE CONTROL RECEIVER IC1701 NJL63H400A S1703 DISPLAY S1702 DIMMER S1704 VCC GND OUT C1701 47 16V S1701 SPEAKERS OFF ON R1703 22k R1701 100 R1702 10 CN1701 11P...
Service Manual
Page 37
... with mark 0 are critical for safety. Ne les remplacer que par une pièce portant le numéro spécifié. SCHEMATIC DIAGRAM - 5-24. STR-DB870/DB1070 CN51 5P SUB,T P.RY 8V GND STOP Q54 2SC2785 AC POWER DETECT EB51 (CHASSIS) R51 2.2k R52 10k Q51 2SC2785 POWER RELAY DRIVE... D.GND 8V (Page 28) * C917,918 0.033 250V (US,CND) 0.015 100V (AEP,UK.E,CH) D914 * C915,916 RBV-602 12000 71V (DB870) 3 15000 71V (DB1070) C917 * CN910 4P +B CT GND B GND 1 4 2 C915 * (US,CND) JW901 -B C916 * (AEP,UK,E,CH) C919 0.1 200V (AEP,UK,E,CH) F905 8A 125V R913 150 (US...
... with mark 0 are critical for safety. Ne les remplacer que par une pièce portant le numéro spécifié. SCHEMATIC DIAGRAM - 5-24. STR-DB870/DB1070 CN51 5P SUB,T P.RY 8V GND STOP Q54 2SC2785 AC POWER DETECT EB51 (CHASSIS) R51 2.2k R52 10k Q51 2SC2785 POWER RELAY DRIVE... D.GND 8V (Page 28) * C917,918 0.033 250V (US,CND) 0.015 100V (AEP,UK.E,CH) D914 * C915,916 RBV-602 12000 71V (DB870) 3 15000 71V (DB1070) C917 * CN910 4P +B CT GND B GND 1 4 2 C915 * (US,CND) JW901 -B C916 * (AEP,UK,E,CH) C919 0.1 200V (AEP,UK,E,CH) F905 8A 125V R913 150 (US...