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

Fm stereo/fm-am receiver
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STR-DB870/DB1070
SERVICE MANUAL
Ver 1.0 2001.04
This receiver incorporates Dolby* Digital and Pro Logic Surround
and the DTS** Digital Surround System.
* Manufactured under license from Dolby Laboratories.
"Dolby", "Pro Logic" and the double-D symbol are trademarks
of Dolby Laboratories.
** "DTS" and "DTS Digital Surround" are registered trademarks
of Digital Theater Systems, Inc.
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
With 8 ohm loads, both channels driven, from
20 – 20,000 Hz; rated 100 watts per channel
minimum RMS power, with no more than
0.09 % total harmonic distortion from 250
milliwatts to rated output (Models of area code
U only).
Amplifier section
POWER OUTPUT
Models of area code U, CA
Rated Power Output at Stereo Mode
(8 ohms 20 Hz – 20 kHz, THD 0.09 %)
100 W + 100 W
(4 ohms 20 Hz – 20 kHz, THD 0.09 %)
90 W + 90 W
Reference Power Output
(8 ohms 20 Hz – 20 kHz, THD 0.09 %)
1)
STR-DB1070:
FRONT
:100 W + 100 W
CENTER
1)
SURR
: 100 W + 100 W
SURR BACK
1)
STR-DB870:
FRONT
: 100 W + 100 W
CENTER
1)
SURR
: 100 W + 100 W
(4 ohms 20 Hz – 20 kHz, THD 0.09 %)
1)
STR-DB1070:
FRONT:
CENTER
SURR
1)
: 90 W + 90 W
SURR BACK
1)
STR-DB870:
FRONT
:90 W + 90 W
CENTER
1)
SURR
: 90 W + 90 W
Sony Corporation
9-873-842-11
2001D0500-1
Home Audio Company
C 2000.4
Shinagawa Tec Service Manual Production Group
Photo: STR-DB870

SPECIFICATIONS

Models of other area code
Rated Power Output at Stereo Mode
(8 ohms 1 kHz, THD 0.7 %)
STR-DB1070:
STR-DB870:
(4 ohms 1 kHz, THD 0.7 %)
STR-DB1070:
STR-DB870:
Reference Power Output
(8 ohms 1 kHz, THD 0.7 %)
STR-DB1070:
STR-DB870:
(4 ohms 1 kHz, THD 0.7 %)
STR-DB1070:
STR-DB870:
1)
: 100 W
1)
: 100 W
(8 ohms 20 Hz – 20 kHz, THD 0.09 %)
STR-DB1070:
1)
: 100 W
90 W + 90 W
STR-DB870:
1)
: 90 W
1)
: 90 W
1)
: 90 W
(4 ohms 20 Hz – 20 kHz, THD 0.09 %)
STR-DB1070:
2)
100 W + 100 W
3)
90 W + 90 W
2)
100 W + 100 W
STR-DB870:
2)
90 W + 90 W
3)
80 W + 80 W
1) Depending on the sound field settings and the
2)
100 W + 100 W
source, there may be no sound output.
2) Measured under the following conditions:
2)
Area code
FRONT
1)
: 100 W + 100 W
E
1)
CENTER
: 100 W
CN, SP, CEL, KR
SURR
1)
: 100 W + 100 W
1)
SURR BACK
: 100 W
TW
FRONT
1)
: 100 W + 100 W
3) Measured under the following conditions:
1)
CENTER
: 100 W
SURR
1)
: 100 W + 100 W
Area code
CN
FRONT
1)
: 90 W + 90 W
1)
CENTER
: 90 W
SURR
1)
: 90 W + 90 W
Frequency response
1)
SURR BACK
: 90 W
FRONT
1)
: 100 W + 100 W
PHONO
1)
CENTER
: 100 W
SURR
1)
: 100 W + 100 W
CD/SACD, TAPE,
MD/DAT, MD/TAPE,
FRONT
1)
: 90 W + 90 W
1)
CENTER
: 90 W
TV/SAT, DVD/LD,
SURR
1)
: 90 W + 90 W
VIDEO 1, 2, 3
SURR BACK
1)
: 90 W
1)
FRONT
: 90 W + 90 W
1)
CENTER
: 90 W
SURR
1)
: 90 W + 90 W
FM STEREO/FM-AM RECEIVER
US Model
E Model
Chinese Model
STR-DB1070
Canadian Model
AEP Model
UK Model
STR-DB870/DB1070
1)
FRONT
: 80 W + 80 W
CENTER
1)
: 80 W
1)
SURR
: 80 W + 80 W
1)
SURR BACK
: 80 W
1)
FRONT
: 90 W + 90 W
CENTER
1)
: 90 W
1)
SURR
: 90 W + 90 W
Power requirements
240 V AC, 50 Hz
230 V AC, 50 Hz
110 V AC, 60 Hz
Power requirements
220 V AC, 50 Hz
RIAA equalization curve
0.5 dB
10 Hz – 100 kHz
3 dB (with sound field,
equalizer, and bass boost
bypassed)
– Continued on next page –

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  Summary of Contents for Sony STR-DB1070 - Fm Stereo/fm-am Receiver

  • Page 1: Specifications

    – Continued on next page – STR-DB870: FRONT :90 W + 90 W CENTER : 90 W SURR : 90 W + 90 W FM STEREO/FM-AM RECEIVER Sony Corporation 9-873-842-11 2001D0500-1 Home Audio Company C 2000.4 Shinagawa Tec Service Manual Production Group...
  • Page 2 STR-DB870/DB1070 Inputs (Analog) Separation Power consumption 45 dB at 1 kHz PHONO Sensitivity: 2.5 mV Area code Power consumption Frequency response 30 Hz – 15 kHz, Impedance: 50 kilohms STR-DB1070: 300 W +0.5/–2 dB : 86 dB (A, 2.5 mV STR-DB1070: 420 VA MULTI CH IN (1, 2), Sensitivity: 150 mV...
  • Page 3 SONY PARTS WHOSE PART NUMBERS APPEAR AS DE FONCTIONNEMENT. NE REMPLACER CES COM- SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- POSANTS QUE PAR DES PIÈCES SONY DONT LES LISHED BY SONY. NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
  • Page 4: Table Of Contents

    STR-DB870/DB1070 TABLE OF CONTENTS SERVICING NOTES ..........5 GENERAL ..............6 DISASSEMBLY 3-1. Disassembly Flow ............8 3-2. Case ................. 9 3-3. S-VIDEO board, VIDEO Board, Tuner ......9 3-4. VIDEO AU Board ............10 3-5. DIGITAL Board .............. 10 3-6.
  • Page 5: Servicing Notes

    STR-DB870/DB1070 SECTION 1 SERVICING NOTES • MODEL IDENTIFICATION – Rear Panel – PART No. Model PART No. DB1070 : US model 4-233-610-0 DB1070 : Canadian model 4-233-610-1 DB1070 : Malaysia and 4-233-610-2 Singapore models DB1070 : Chinese model 4-233-610-3 DB1070 : AEP and UK models 4-233-610-5 DB1070 : 120 V AC area and 4-233-610-7...
  • Page 6: General

    STR-DB870/DB1070 SECTION 2 This section is extracted from instruction manual. GENERAL LOCATION OF CONTROLS – Front Panel – 1 2 3 0 qa qs qf qg qh qk ql rd rs 2CH qg (30) ENTER wh (43) NAME ed (43) EQ e;...
  • Page 7 STR-DB870/DB1070 – Rear Panel – qgqh 1 DIGITAL jack qa PRE OUT jack 2 ANTENNA terminal qs IMPEDANCE SELECTOR switch 3 CONTROL A1 II jack qd MULTI CH IN jack (STR-DB870) 4 MONITOR jack MULTI CH IN 2 jack (STR-DB1070) 5 TV/SAT jack qf MULTI CH IN 1 jack (STR-DB1070) 6 DVD/LD jack...
  • Page 8: Disassembly

    STR-DB870/DB1070 SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. 3-1. DISASSEMBLY FLOW 3-2. CASE (Page 9) 3-3. S-VIDEO BOARD, VIDEO BOARD, TUNER (Page 9) 3-4. VIDEO AU BOARD (Page 10) 3-5. DIGITAL BOARD (Page 10) 3-6.
  • Page 9: Case

    STR-DB870/DB1070 Note: Follow the disassembly procedure in the numerical order given. 3-2. CASE 3 case assy 1 two screws 1 two screws (flat head) (flat head) 1 two screws (flat head) 1 two screws (flat head) 3-3. S-VIDEO BOARD, VIDEO BOARD, TUNER 2 wire (flat type) (11 core) (DB870: AEP, UK models) 1 connector wire (flat type) (15 core) (DB1070: EXCEPT US, Canadian models)
  • Page 10: Video Au Board

    STR-DB870/DB1070 3-4. VIDEO AU BOARD 3 VIDEO AU board 1 wire (flat type) (9 core) (CN201) 2 two screws (BV/RING) 3-5. DIGITAL BOARD 2 connector (CN1106) 3 two screws 2 connector (CN1107) (BVTP3 2 connector (CN1108) 6 DIGITAL board 1 wire (flat type) (31 core) (CN1101) 5 two connectors (CN1102, 1103)
  • Page 11: Main Board

    STR-DB870/DB1070 3-6. MAIN BOARD 1 connector 1 connector (CN802) (CN804) 1 connector (CN805) 1 connector (CN803) 4 screw (BVTP3 4 screw (BVTP3 3 two screws (BVTP3 2 five screws 3 two screws (BV/RING) (BVTP3 7 ten screws 6 five connector (transistor) (CN501, 551, 451, 401, 601, 651) 6 connector (CN810)
  • Page 12: Test Mode

    STR-DB870/DB1070 SECTION 4 TEST MODE Factory Set Mode AM Channel Step 9 kHz/10 kHz Selection Mode All preset contents are reset to the default setting. (US, Canadian and E Models) Procedure: Either the 9 kHz step or 10 kHz step can be selected for the AM [SET UP] [DIMMER] While pressing the...
  • Page 13: Diagrams

    STR-DB870/DB1070 SECTION 5 DIAGRAMS 5-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS Note on Printed Wiring Board: Note on Schematic Diagram: • X : parts extracted from the component side. • All capacitors are in F unless otherwise noted. pF: •...
  • Page 14 STR-DB870/DB1070 • Circuit Boards Location SP board DC2 board VIDEO board POWER board S-VIDEO board H.P board DIGITAL board VIDEO 3 board SW board BIAS board MUTING board V.SWITCH board (120 V AC area and 240 V AC area in E models) AC board DC1 board VIDEO AU board...
  • Page 15: Schematic Diagram - Digital Board (1/5)

    STR-DB870/DB1070 5-2. SCHEMATIC DIAGRAM – DIGITAL Board (1/5) – • • See page 38 for Waveforms. See page 38 for IC Block Diagrams. *FM/AM TUNER UNIT STEREO TUNED RDS DECODER MUTING C1306 C1307 R CH R1304 C1308 R1303 IC1303 BU1924F L1201 L CH +12V REGULATOR...
  • Page 16: Schematic Diagram – Digital Board (2/5)

    STR-DB870/DB1070 5-3. SCHEMATIC DIAGRAM – DIGITAL Board (2/5) – • See page 38 for Waveform. S-RAM IC1602 IDT71V016S C1609 C1607 C1606 C1611 R1605 C1602 (Page 17) R1607 C1614 R1612 R1611 AUDIO DSP2 C1616 C1601 IC1601 CXD9616R R1609 R1601 FB1604 R1606 4.7k C1603 (Page 15)
  • Page 17: Schematic Diagram - Digital Board (3/5)

    STR-DB870/DB1070 5-4. SCHEMATIC DIAGRAM – DIGITAL Board (3/5) – • See page 38 for Waveform. (Page 15) +32V +3.3V RESET SIGNAL R1810 POWER R1799 GENERATOR SIRCS SP ON/OFF FL CLK (US,CND,E,CH) FL LAT FL CLR C1706 C1719 C1707 X1701 16.5MHz FL DATA LED CLK R1736...
  • Page 18: Schematic Diagram - Digital Board (4/5)

    STR-DB870/DB1070 5-5. SCHEMATIC DIAGRAM – DIGITAL Board (4/5) – • • See page 38 for Waveform. See page 38 for IC Block Diagram. (Page 15) (Page16) (Page 17) C1506 C1504 C1510 R1505 C1502 C1501 S-RAM IC1502 IDT71V016S R1508 X1501 13.5MHz C1515 R1566 C1509...
  • Page 19: Schematic Diagram - Digital Board (5/5)

    STR-DB870/DB1070 5-6. SCHEMATIC DIAGRAM – DIGITAL Board (5/5) – • See page 38 for IC Block Diagrams. (Page 15) (Page 17) (DB1070) R1212 FB1201 C1214 4700p C1205 10 50V C1206 C1213 (Page C1212 C1208 R1280 8.2k IC1202 PCM1748 D/A CONVERTER R1204 C1210 C1201...
  • Page 20: Printed Wiring Board - Digital Board (Component Side)

    STR-DB870/DB1070 5-7. PRINTED WIRING BOARD – DIGITAL Board (Component Side) – • See page 14 for Circuit Boards Location. • Semiconductor Location Ref. No. Location DIGITAL BOARD (COMPONENT SIDE) D1701 D-11 D1702 F-13 D1703 G-13 D1801 B-14 D1801 D1802 B-16 C1320 D1802 L1201...
  • Page 21: Printed Wiring Board - Digital Board (Conductor Side)

    STR-DB870/DB1070 5-8. PRINTED WIRING BOARD – DIGITAL Board (Conductor Side) – • See page 14 for Circuit Boards Location. COAXIAL • Semiconductor (Page 22) Location (Page 36) *SUPPLIED AS THE DC2 BOARD VIDEO BOARD *FM/AM TUNER UNIT Ref. No. Location CN903 CN303 ASSEMBLED BLOCK...
  • Page 22: Printed Wiring Board - Video Board

    STR-DB870/DB1070 5-9. PRINTED WIRING BOARD – VIDEO Board – • See page 14 for Circuit Boards Location. • Semiconductor Location Ref. No. Location D301 J301 D303 COMPONENT VIDEO D304 VIDEO BOARD MONITOR TV/SAT DVD/LD J302 J305 J304 IC301 VIDEO 2 VIDEO 1 IC302 MONITOR...
  • Page 23: Schematic Diagram - Video Board

    STR-DB870/DB1070 5-10. SCHEMATIC DIAGRAM – VIDEO Board – • • See page 38 for Waveforms. See page 38 for IC Block Diagrams. R329 R330 CN301 (US,CND) Q305 R347 R333 (DB1070:AEP,UK,E,CH) FL305 2SC2785 3.9k 4.7k (DB870:AEP,UK) BUFFER IC310 CN301 74ACT08 (US,CND) C375 FB303 MBUS-STATUS-OUT...
  • Page 24: Printed Wiring Boards - S-Video/Video Au Boards

    STR-DB870/DB1070 5-11. PRINTED WIRING BOARDS – S-VIDEO/VIDEO AU Boards – • See page 14 for Circuit Boards Location. S-VIDEO BOARD VIDEO AU BOARD J201 J202 MONITOR TU/SAT DVD/LD VIDEO 1 VIDEO 2 VIDEO 1 J751 J750 J752 J753 J754 J755 J756 TV/SAT DVD/LD...
  • Page 25: Schematic Diagram - S-Video/Video Au Boards

    STR-DB870/DB1070 5-12. SCHEMATIC DIAGRAM – S-VIDEO/VIDEO AU Boards – • See page 38 for IC Block Diagrams. C768 470p C765 470p J753 MONITOR R750 CTRL S J754 CN751 TV/SAT (US,CND) R751 CTRL S (DB1070:AEP,UK,E,CH) STATUS IN (DB870:AEP,UK) CN751 J755 CONTROL S (US,CND) I/O SWITCH DVD/LD...
  • Page 26: Printed Wiring Board - Main Board

    STR-DB870/DB1070 5-13. PRINTED WIRING BOARD – MAIN Board – • See page 14 for Circuit Boards Location. • Semiconductor Location J302 J305 MAIN BOARD (DB1070) (DB1070) MD/TAPE (DB870) MULTI CH IN (DB870) MULTI CH IN 1 TM501 J303 Ref. No. Location MD/DAT (DB1070)
  • Page 27: Schematic Diagram - Main Board (1/3)

    STR-DB870/DB1070 5-14. SCHEMATIC DIAGRAM – MAIN Board (1/3) – • See page 38 for IC Block Diagrams. CN807 TUNER-L TUNER-R R833 FRONT-L FRONT-R R651 R551 R601 R501 (DB1070) R451 R401 6.8k 6.8k 6.8k 6.8k 6.8k 6.8k R826 R701 6.8k C518 C519 100p Q701...
  • Page 28: Schematic Diagram - Main Board (2/3)

    STR-DB870/DB1070 5-15. SCHEMATIC DIAGRAM – MAIN Board (2/3) – • See page 38 for IC Block Diagrams. (Page 31) (Page 31) CN550 CN500 HP-CONT RY806 H.P GND H.P R R864 R825 Q811 Q812 2SA988TP-P BA1F4M-TP MUTING MUTING H.P L DRIVE (Page 35) ON/OFF C561...
  • Page 29: Schematic Diagram - Main Board (3/3)

    STR-DB870/DB1070 5-16. SCHEMATIC DIAGRAM – MAIN Board (3/3) – • See page 38 for IC Block Diagrams. (Page 27) (Page 28) CN101 LOUT ROUT (Page 19) -15V CN808 (US,CND) (Page 25) (AEP,UK,E,CH) DATA IC104(2/2) (AEP,UK,E,CH) M5218AP-22 R115 C112 C115 2.2k 100p R122 CN806...
  • Page 30: Printed Wiring Board - Bias Board

    STR-DB870/DB1070 5-17. PRINTED WIRING BOARD – BIAS Board – • See page 14 for Circuit Boards Location. BIAS BOARD MAIN (DB1070) BOARD CN809 (Page (DB1070) (DB1070) 1-681-115- (11) MAIN BOARD MAIN BOARD MAIN BOARD MAIN BOARD MAIN BOARD MAIN BOARD CN500 CN550 CN450...
  • Page 31: Schematic Diagram - Bias Board

    STR-DB870/DB1070 5-18. SCHEMATIC DIAGRAM – BIAS Board – R540 R542 R515 C513 R525 4.7k 4.7k 220p CN501 Q504 2SA988TP-P R526 * R422,472,522,572,622,672 +OUT R527 R516 4.7k (US,CND) Q506 6.2k Q540 R518 2SC1815GR- 3.3k (AEP,UK) 2SC4495 1.8k +OUT AF POWER (E,CH) R541 BIAS PROTECTOR...
  • Page 32: Printed Wiring Boards - Disp/Sw Boards

    STR-DB870/DB1070 5-19. PRINTED WIRING BOARDS – DISP/SW Boards – • See page 14 for Circuit Boards Location. (Page 21) DIGITAL BOARD CN1101 DISP BOARD R1637 C1607 R1638 CN1601 CN1602 JW22 Q1602 R1640 JW94 JW25 D1619 JW30 MULTI CHANNEL JW88 JW27 JW23 DECODING JW33...
  • Page 33: Schematic Diagram - Disp/Sw Boards

    STR-DB870/DB1070 5-20. SCHEMATIC DIAGRAM – DISP/SW Boards – • See page 38 for IC Block Diagrams. R1602 R1601 FL1601 IC1601 FLUORESCENT INDICATOR TUBE ML9261 R1640 D1617 MODE D1611 D1618 SEL6810A-TH12 A.F.D. DIMMER D1612 FL DISPLAY D1615 C1601 DRIVE DIGITAL MULTI/2CH D1601 D1604 D1606...
  • Page 34: Printed Wiring Boards - H.p/Muting/Power/Sp/Video 3 Boards

    STR-DB870/DB1070 5-21. PRINTED WIRING BOARDS – H.P/MUTING/POWER/SP/VIDEO 3 Boards – • See page 14 for Circuit Boards Location. PRE OUT J701 J403 (DB870) SUB WOOFER CENTER J401 J402 (DB1070) TM502 SUB WOOFER SURROUND BACK SURROUND FRONT FRONT (Page 32) SPEAKERS IMPEDANCE USE 4-16 DISP BOARD CN1603...
  • Page 35: Schematic Diagram - H.p/Muting/Power/Sp/Video 3 Boards

    STR-DB870/DB1070 5-22. SCHEMATIC DIAGRAM – H.P/MUTING/POWER/SP/VIDEO 3 Boards – CN502 FSP,RY- RV1801 R834 ROTARY ENCODER FUNCTION CN1801 PRE,RY- J402 C503 22 50V RY808 R433 C553 22 50V C403 22 50V R483 D1801 (Page 27) C453 22 50V FRONT SEL5821A C603 22 50V AUDIO SPLIT R533...
  • Page 36: Printed Wiring Boards - Power Supply Section

    STR-DB870/DB1070 5-23. PRINTED WIRING BOARDS – POWER SUPPLY Section – • See page 14 for Circuit Boards Location. • Semiconductor Location Ref. No. Location CNJ1 AC OUTLET DC1 BOARD (US, CND, E2, E3, TW, CH) F905 (US, CND) C917 C918 R913 AC BOARD FH955...
  • Page 37: Schematic Diagram - Power Supply Section

    STR-DB870/DB1070 5-24. SCHEMATIC DIAGRAM – POWER SUPPLY Section – (E2,E3) 10A 125V (US,CND) T4AL 250V (AEP,UK,E,CH) 2.2k 2SC2785 1SS133T POWER RELAY DRIVE (EXCEPT E2,E3,TW) CN51 SUB,T 10A 125V (US,CND) P.RY T2.5AL 250V (AEP,UK,MY,SP,KR,CH) 1000 11EQS04 1SS133T 11ES2 2SA1015 (E2,E3,TW) CNJ1 STOP (EXCEPT E2,E3) AC OUTLET...
  • Page 38 STR-DB870/DB1070 • Waveforms • IC Block Diagrams – DIGITAL Board – – VIDEO Board – IC101 TC9274N-016 (MAIN board) IC102 TC9273N-004 (MAIN Board) 1 IC1303 qf (XO) qa IC304 qa IC105 TC9273N-013 (MAIN Board (STR-DB1070)) IC201 TC9273N-014 (VIDEO AU Board) 1.3 Vp-p 4 Vp-p 231 ns...
  • Page 39 STR-DB870/DB1070 IC307 MB90089F-G-238-BND (VIDEO Board (STR-DB1070)) AVSS YOUT ANALOG COUT SWITCH VOUT AVCC FSCO SERIAL VIDEO INPUT SIGNAL CONTROL VBLK GENERATOR SCLK CIRCUIT VCC 7 4 FSC DATA TEST CLOCK COLOR OSCILLATOR BURST CIRCUIT VOC0 NTSC/PAL VOC1 OUTPUT HSYNC SIGNAL GENERATOR CONTROL VOC2 CIRCUIT...
  • Page 40 STR-DB870/DB1070 IC401, 501, 601, 701 TC94A07P (MAIN Board) IC751 NJM2145D (S-VIDEO Board (US and Canadian models)) TRIM VOLUME TRIM VOLUME 20 VDD 0-+24dB/ 0-+24dB/ 1dB STEP 1dB STEP OUT1 INH1 TRIM 19 TRIM DECODER DECODER & & INH2 LATCH CIRCUIT LATCH CIRCUIT TRIM 18 TRIM...
  • Page 41 STR-DB870/DB1070 IC1201 PCM1604Y/2K (DIGITAL Board) 36 35 34 33 MODE CONTROL INTERFACE VCC3 AGND3 SCKI CLOCK VCC4 MANAGER SCKO AGND4 VCC5 AGND5 VCC6 LRCK CONVERTER AGND6 TEST VCOM1 MULTI-FUNCTION VCOM2 MULTI- SERIAL LEVEL INPUT OVER SAMPLING DIGITAL CONVERTER INTERFACE DIGITAL DGND FILTER 2CH LPF...
  • Page 42 STR-DB870/DB1070 IC1407 TC7WH157FU (TE12R) IC1408 LC89056W-E (DIGITAL Board) (DIGITAL Board) SELECT 11 1 1A 2 STROBE INPUT INPUT OUTPUT AUDIO C BIT PA/PB DETECT DETECT EMPHA 11 12 OUTPUT SAMPLING INPUT XSEL FREQUENCY MICROCOMPUTER MODE0 INPUT INTERFACE OUTPUT MODE1 LOCK XOUT X’...
  • Page 43: Ic Pin Function Description

    STR-DB870/DB1070 5-25. IC PIN FUNCTION DESCRIPTION DIGITAL BOARD IC1201 PCM1604Y/2K (D/A CONVERTER) Pin No. Pin Name Description 1 to 6 ZER01 to ZER06 Not used (open) AGND — Ground terminal (for analog) — Power supply terminal (+5V) VOUT6 Analog negative signal output to the line amp (IC1261) VOUT5 Analog negative signal output to the line amp (IC1261) VOUT4...
  • Page 44 STR-DB870/DB1070 DIGITAL BOARD IC1408 LC89056W-E (DIGITAL AUDIO INTERFACE RECEIVER) Pin No. Pin Name Description DISEL Input data select terminal (fixed at “L”) DOUT EIAJ data and parity output terminal Not used (open) DIN0 Amp integrate data input from the select switch (IC1406) DIN1 Amp integrate data input terminal Not used (fixed at “L”) DIN2...
  • Page 45 STR-DB870/DB1070 DIGITAL BOARD IC1501 CDX9617R (AUDIO DSP1) Pin No. Pin Name Description — Ground terminal XRST Reset signal input from the system controller (IC1703) EXTIN Master clock input terminal Not used (fixed at “L”) Sampling frequency select signal input terminal Not used (fixed at “L”) VDDI —...
  • Page 46 STR-DB870/DB1070 Pin No. Pin Name Description WMD0 External memory wait mode setting terminal (fixed at “H”) PAGE2 External memory page select signal output terminal Not used (open) — Ground terminal PAGE1, PAGE0 52, 53 External memory page select signal output terminal Not used (open) BOOT Boot mode control signal input terminal Not used (fixed at “L”) BTACT...
  • Page 47 STR-DB870/DB1070 DIGITAL BOARD IC1601 CXD9616R (AUDIO DSP2) Pin No. Pin Name Description VDDI — Power supply terminal (+2.5V) EXTIN Not used (fixed at “L”) WMD1, WMD0 3, 4 External memory wait mode setting terminal (fixed at “H”) MOD1 Mode select signal input terminal “L”: 384fs, “H”: 256fs MOD0 Mode select signal input terminal “L”: single chip mode, “H”: can not use —...
  • Page 48 STR-DB870/DB1070 Pin No. Pin Name Description SDO1, SDO2 60, 61 Audio serial data output to the D/A converter (IC1201) KFSIO Audio clock signal (384fs/256fs) in/out terminal LRCKO L/R sampling clock signal output to the D/A converter (IC1201, 1202) BCKO Bit clock signal output to the D/A converter (IC1201, 1202) VDDI —...
  • Page 49 STR-DB870/DB1070 Pin No. Pin Name Description Error signal output to the system controller (IC1703) — Not used (open) Address signal output to the S-RAM (IC1602) 123 to 125 D4 to D2 Two-way data bus terminal Not used (open) VDDE — Power supply terminal (+3.3V) —...
  • Page 50 STR-DB870/DB1070 DIGITAL BOARD IC1703 MB91154PMT2-G-102-E1 (SYSTEM CONTROLLER) Pin No. Pin Name Description H.P IN Headphone detect signal input from the HP jack (J749) “H”: active SP A RY Front speaker A relay drive signal output terminal “H”: relay on H/P RY Headphone relay drive signal output terminal “H”: relay on WOOFER RY Woofer speaker relay drive signal output terminal “H”: relay on...
  • Page 51 STR-DB870/DB1070 Pin No. Pin Name Description M STATUS STATUS (M BUS) control signal output to the select switch (IC751) D.POWER Power ON/OFF control signal output terminal (digital section power) V.POWER Power ON/OFF control signal output terminal (video section power) — Ground terminal 45, 46 Not used (fixed at “L”...
  • Page 52 STR-DB870/DB1070 Pin No. Pin Name Description HACN1 Host acknowledge signal input from the audio DSP1(IC1501) XRST1 Reset signal output to the audio DSP1 (IC1501) PLL initialize signal output to the audio DSP1 (IC1501) ADC : RST Reset signal output to the A/D converter (IC1101) DACINT Reset signal output to the D/A converter (IC1201) DA1LAT...
  • Page 53 STR-DB870/DB1070 Pin No. Pin Name Description Key input terminal (A/D input) S1702, 1703, 1941 to 1945 (DIMMER, DISPLAY, ON SCREEN (DB1070), FM/AM, SHIFT, PRESET TUNING – /+) Key input terminal (A/D input) S1911 to 1918 (EQUALIZER, STREAM INFO (DB870)/ 2ND ROOM (DB1070), TEST TONE, TUNING +/–, SLEEP (US, Canadian, E, Chinese models)/RDS/PTY (AEP, UK models) FM MODE, MEMORY) Key input terminal (A/D input) S1901 to 1908 (ENTER, >, <, LEVEL, SUR, EQ, NAME, SET UP)
  • Page 54 STR-DB870/DB1070 VIDEO BOARD IC307 MB90089F-G-238-BND (OSD DRIVER) Pin No. Pin Name Description Y (luminance) signal input from the Y switch (IC752) C (color) signal input from the C switch (IC750) Composite video signal input from the video select (IC308) AVCC —...
  • Page 55: Exploded Views

    4-233-626-11 KNOB (F14B) (GOLD) 4-970-123-51 FOOT (F50180S) (EXCEPT US, CND/SILVER) 4-233-626-21 KNOB (F14B) (SILVER) 4-970-123-61 FOOT (F50180S) (GOLD) 4-985-642-01 CUSHION 4-942-568-41 EMBLEM (NO.5), SONY (BLACK) * 12 X-4950-431-1 CASE ASSY (BLACK) 4-942-568-51 EMBLEM (NO.5), SONY (GOLD) 4-942-568-61 EMBLEM (NO.5), SONY (SILVER)
  • Page 56: Front Panel Section-1

    STR-DB870/DB1070 6-2. FRONT PANEL SECTION-1 Front panel section-2 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-233-627-01 PANEL, FRONT (DB1070: CND, E2, E3, US) 4-217-729-01 KNOB (JOG) (BLACK) 4-233-627-11 PANEL, FRONT (for BLACK) (DB1070: AEP, UK) 4-217-729-11 KNOB (JOG) (GOLD) 4-233-627-21 PANEL, FRONT (for SILVER) 4-217-729-21 KNOB (JOG) (SILVER)
  • Page 57: Front Panel Section-2

    STR-DB870/DB1070 6-3. FRONT PANEL SECTION-2 not supplied supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-4953-673-1 BASE ASSY, PANEL (DB1070: CND, E2, E3, US) 4-233-621-11 BUTTON (ON SCREEN) (GOLD) (DB1070) X-4953-674-1 BASE ASSY, PANEL (for BLACK) 4-233-621-21 BUTTON (ON SCREEN) (SILVER)(DB1070) (DB1070: AEP, UK) 4-913-587-81 BLACKET, YOKE...
  • Page 58: Chassis Section-1

    STR-DB870/DB1070 6-4. CHASSIS SECTION-1 T901 supplied not supplied The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. not supplied Les composants identifiés par une marque 0 sont critiquens pour la sécurité.
  • Page 59: Chassis Section-2

    STR-DB870/DB1070 6-5. CHASSIS SECTION-2 not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied The components identified by Les composants identifiés par une mark 0 or dotted line with marque 0 sont critiques pour la not supplied mark 0 are critical for safety.
  • Page 60: Electrical Parts List

    STR-DB870/DB1070 SECTION 7 ELECTRICAL PARTS LIST NOTE: The components identified by • Due to standardization, replacements in the • Items marked “*” are not stocked since they mark 0 or dotted line with mark 0 are critical for safety. parts list may be different from the parts speci- are seldom required for routine service.
  • Page 61 STR-DB870/DB1070 BIAS Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-4476-487-A BIAS BOARD, COMPLETE (DB870: AEP, UK) C663 1-128-813-11 CERAMIC 220PF A-4476-499-A BIAS BOARD, COMPLETE (US) (DB1070) A-4476-512-A BIAS BOARD, COMPLETE C665 1-136-153-00 FILM 0.01uF (CH, E2, E3, KR, MY, SP, TW) (DB1070) A-4476-528-A BIAS BOARD, COMPLETE (DB1070: AEP, UK) C666...
  • Page 62 STR-DB870/DB1070 BIAS Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark Q456 8-729-281-53 TRANSISTOR 2SC1815-GR R477 1-249-433-11 CARBON 1/4W Q490 8-729-026-08 TRANSISTOR 2SC4495 R490 1-249-425-11 CARBON 4.7K 1/4W Q504 8-729-140-82 TRANSISTOR 2SA988-PAFAEA Q505 8-729-140-82 TRANSISTOR 2SA988-PAFAEA R491 1-249-417-11 CARBON 1/4W R492...
  • Page 63 STR-DB870/DB1070 BIAS Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R641 1-249-417-11 CARBON 1/4W C916 1-137-666-12 ELECT 15000uF R642 1-249-429-11 CARBON 1/4W (DB1070) C917 1-137-350-11 MYLAR 0.015uF 100V R665 1-249-425-11 CARBON 4.7K 1/4W (AEP, CH, E, UK) (DB1070) 0 R666 1-240-855-11 CARBON...
  • Page 64 STR-DB870/DB1070 DIGITAL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < CONNECTOR > A-4476-481-A DIGITAL BOARD, COMPLETE (DB870: CND) A-4476-496-A DIGITAL BOARD, COMPLETE (DB870: AEP, UK) CN904 1-784-922-11 PIN, CONNECTOR 5P A-4476-508-A DIGITAL BOARD, COMPLETE CN905 1-785-101-11 PIN, CONNECTOR 3P (DB1070: CND, US) CN906...
  • Page 65 STR-DB870/DB1070 DIGITAL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C1204 1-127-719-11 ELECT MELF 220uF C1252 1-163-012-00 CERAMIC CHIP 0.0018uF 5% (DB870/DB1070: CH, CND, E, US) C1253 1-163-257-11 CERAMIC CHIP 180PF C1204 1-135-710-11 ELECT 220uF (DB1070: AEP, UK) C1254 1-128-858-11 ELECT 22uF...
  • Page 66 STR-DB870/DB1070 DIGITAL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C1318 1-119-824-11 ELECT MELF 10uF C1505 1-165-319-11 CERAMIC CHIP 0.1uF (DB870: AEP, UK) C1506 1-165-319-11 CERAMIC CHIP 0.1uF C1318 1-135-743-11 ELECT 10uF C1507 1-165-319-11 CERAMIC CHIP 0.1uF (DB1070: AEP, UK) C1508...
  • Page 67 STR-DB870/DB1070 DIGITAL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C1716 1-165-319-11 CERAMIC CHIP 0.1uF D1802 8-719-988-61 DIODE 1SS355TE-17 C1717 1-165-319-11 CERAMIC CHIP 0.1uF C1718 1-165-319-11 CERAMIC CHIP 0.1uF D1803 8-719-053-18 DIODE 1SR154-400TE-25 C1719 1-165-319-11 CERAMIC CHIP 0.1uF <...
  • Page 68 STR-DB870/DB1070 DIGITAL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark IC1803 8-759-450-47 IC BA05T R1212 1-216-025-11 RES-CHIP 1/10W IC1804 8-759-445-59 IC BA033T (DB1070) IC1805 8-759-835-63 IC NJM2391DL1-26-TE1 R1220 1-216-071-00 METAL CHIP 8.2K 1/10W IC1806 8-759-445-59 IC BA033T R1221 1-216-053-00 METAL CHIP 1.5K...
  • Page 69 STR-DB870/DB1070 DIGITAL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R1412 1-216-067-00 METAL CHIP 5.6K 1/10W R1413 1-216-065-00 RES-CHIP 4.7K 1/10W R1667 1-216-295-11 SHORT R1414 1-216-073-00 RES-CHIP 1/10W R1701 1-216-073-00 RES-CHIP 1/10W R1702 1-216-073-00 RES-CHIP 1/10W R1415 1-216-073-00 RES-CHIP 1/10W...
  • Page 70 STR-DB870/DB1070 DIGITAL DISP Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R1807 1-216-045-00 METAL CHIP 1/10W R1755 1-216-025-11 RES-CHIP 1/10W R1756 1-216-073-00 RES-CHIP 1/10W R1808 1-216-073-00 RES-CHIP 1/10W R1757 1-216-295-11 SHORT 0 (DB1070) R1809 1-216-073-00 RES-CHIP 1/10W R1758 1-216-073-00 RES-CHIP...
  • Page 71 STR-DB870/DB1070 DISP MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark D1608 8-719-075-60 LED SELS5823C-TP15 < ROTARY ENCODER > (CD/SACD (DB870), MD/DAT (DB1070) D1609 8-719-075-60 LED SELS5823C-TP15 (TUNER) RV1601 1-418-773-11 ENCODER, ROTARY (MASTER VOLUME) D1610 8-719-075-60 LED SELS5823C-TP15 (PHONO) ************************************************************** D1611 8-719-313-50 LED SEL6810A-TH12 (DIMMER)
  • Page 72 STR-DB870/DB1070 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C126 1-128-825-11 CERAMIC 2200PF C409 1-135-667-11 ELECT 220uF (DB1070) (DB1070: AEP, UK) C127 1-128-825-11 CERAMIC 2200PF C410 1-128-809-11 CERAMIC 100PF (DB1070) C411 1-107-597-11 CERAMIC 22PF 500V C128 1-127-868-11 CERAMIC 2200PF...
  • Page 73 STR-DB870/DB1070 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C518 1-135-708-11 ELECT 47uF C651 1-135-744-11 ELECT 22uF (DB1070: AEP, UK) (DB1070: AEP, UK) C519 1-128-809-11 CERAMIC 100PF C652 1-128-813-11 CERAMIC 220PF C520 1-136-163-00 MYLAR 0.068uF C654 1-128-858-11 ELECT 22uF...
  • Page 74 STR-DB870/DB1070 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark IC602 8-759-636-74 IC M5218AP-22 C810 1-128-883-11 ELECT 22uF 100V IC603 8-759-326-52 IC uPC2581V (DB870/DB1070: CH, CND, E, US) IC701 8-759-835-76 IC TC94A07P (DB1070) C810 1-135-727-11 ELECT 22uF 100V (DB1070: AEP, UK)
  • Page 75 STR-DB870/DB1070 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark Q601 8-729-141-30 TRANSISTOR 2SC3623A-LK R134 1-247-887-00 CARBON 220K 1/4W Q602 8-729-051-92 TRANSISTOR 2SD2560 (DB1070) (DB1070) Q602 8-749-010-25 IC MN2488-OPY-M (DB870) R135 1-249-417-11 CARBON 1/4W Q603 8-729-051-93 TRANSISTOR 2SB1647 (DB1070) R151 1-249-417-11 CARBON...
  • Page 76 STR-DB870/DB1070 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R411 1-249-439-11 CARBON 1/4W 0 R562 1-249-405-11 CARBON 1/4W F 0 R563 (EXCEPT DB1070: AEP, UK) 1-249-405-11 CARBON 1/4W F R411 1-249-494-11 CARBON 1/2W 0 R564 1-233-352-41 ENCAPSULATED COMPONENT 0.22 5W (DB1070: AEP, UK) 0 R412...
  • Page 77 STR-DB870/DB1070 MAIN MUTING POWER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 0 R809 1-215-889-00 METAL OXIDE 1-681-100-11 MUTING BOARD (CND, US) ************* 0 R809 1-215-890-11 METAL OXIDE (CH, E) < CONNECTOR > 0 R810 1-249-381-11 CARBON 1/4W F * CN1801 1-695-808-11 CONNECTOR, PC BOARD 8P 0 R811...
  • Page 78 STR-DB870/DB1070 S-VIDEO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-4476-478-A S-VIDEO BOARD, COMPLETE (DB870: CND) J751 1-537-943-11 CONNECTOR (DIN) 1P A-4476-493-A S-VIDEO BOARD, COMPLETE(DB870: AEP, UK) (MONITOR S-VIDEO OUT) (DB870) A-4476-506-A S-VIDEO BOARD, COMPLETE J751 1-779-800-11 CONNECTOR (DIN) (MONITOR S-VIDEO OUT) (DB1070: CND, US) (DB1070)
  • Page 79 STR-DB870/DB1070 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-681-105-11 SP BOARD A-4476-470-A SW BOARD, COMPLETE (DB870) A-4476-501-A SW BOARD, COMPLETE (DB1070) ********* ******************* < CAPACITOR > < CONNECTOR > C403 1-128-858-11 ELECT 22uF C421 1-128-809-11 CERAMIC 100PF CN1901 1-784-806-11 HOUSING, CONNECTOR (PC BOARD) 13P C431...
  • Page 80 STR-DB870/DB1070 VIDEO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark S1912 1-762-875-21 SWITCH, KEYBOARD (STREAM INFO (DB870), C314 1-126-935-11 ELECT 470uF 2ND ROOM (DB1070)) (DB1070) C315 1-126-935-11 ELECT 470uF S1913 1-762-875-21 SWITCH, KEYBOARD (TEST TONE) (DB1070) S1914 1-762-875-21 SWITCH, KEYBOARD C316...
  • Page 81 STR-DB870/DB1070 VIDEO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C359 1-127-888-11 CERAMIC 0.1uF D304 8-719-911-19 DIODE 1SS199-25 (DB1070: AEP, CH, E, UK) C360 1-127-888-11 CERAMIC 0.1uF < FERRITE BEAD/NOISE FILTER > C361 1-126-916-11 ELECT 1000uF 6.3V (DB1070: AEP, CH, E, UK) FB303...
  • Page 82 STR-DB870/DB1070 VIDEO VIDEO 3 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R304 1-247-804-11 CARBON 1/4W R335 1-247-804-11 CARBON 1/4W (CND, US) (DB1070: AEP, CH, E, UK) R305 1-247-804-11 CARBON 1/4W (CND, US) R336 1-247-804-11 CARBON 1/4W (DB1070: AEP, CH, E, UK) R306...
  • Page 83 STR-DB870/DB1070 VIDEO 3 VIDEO AU V.SWITCH Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < JACK > 1-681-106-11 V.SWITCH BOARD (E2, E3) ************** J298 1-770-571-11 JACK BLOCK, PIN (L TYPE) 3P (VIDEO 3 INPUT VIDEO/AUDIO) 1-533-217-31 HOLDER, FUSE J299 1-784-808-11 TERMINAL, S (VIDEO 3 INPUT S-VIDEO) <...
  • Page 84 STR-DB870/DB1070 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-501-374-11 ANTENNA, LOOP (AM) 1-501-594-11 ANTENNA (FM) 1-777-172-11 CORD, CONNECTION (CONTROL S CONNECTING CORD) (CND,US) 1-777-560-11 CORD, CONNECTION (AUDIO/VIDEO/ CONTROL S CONNECTING CORD) (CND, US) 1-793-184-21 CONNECTOR (F TYPE ADAPTOR) (CND, E2, E3, US) 4-228-696-01 COVER, BATTERY (for RM-U305A) (DB870: AEP, UK)
  • Page 85 STR-DB870/DB1070 MEMO...
  • Page 86: Revision History

    STR-DB870/DB1070 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 2001.04...

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