STR-DA2000ES, STR-DB2000 — Sony Audio Service Manual (repair manual)

Model
STR-DA2000ES STR-DB2000
Pages
127
Size
12.39 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
str-da2000es-str-db2000.pdf
Date

View Sony STR-DA2000ES / STR-DB2000 Service Manual online

SERVICE MANUAL
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC 
DISTORTION:
(STR-DA2000ES model of area code US 
only)
With 8 ohm loads, both channels driven, from 20 
– 20,000 Hz; rated 120 watts per channel 
minimum RMS power, with no more than 0.6% 
total harmonic distortion from 250 milliwatts to 
rated output.
Amplifier section
Rated Power Output at Stereo Mode
(8 ohms 20 Hz – 20 kHz, THD 0.6%) 120 W + 120 W
(4 ohms 20 Hz – 20 kHz, THD 0.6%) 100 W + 100 W
Reference Power Output
(8 ohms 20 Hz – 20 kHz, THD 0.6%)
FRONT
1)
: 120 W + 120 W
CENTER
1)
: 120 W
SURR
1)
: 120 W + 120 W
SURR BACK
1)2)
: 120 W + 
120 W
SURR BACK
1)3)
: 120 W
(4 ohms 20 Hz – 20 kHz, THD 0.6%)
FRONT
1)
: 100 W + 100 W
CENTER
1)
: 100 W
SURR
1)
: 100 W + 100 W
SURR BACK
1)2)
: 100 W + 
100 W
SURR BACK
1)3)
: 100 W
1) Depending on the sound field settings and the 
source, there may be no sound output.
2) Model of STR-DA2000ES only.
3) Model of STR-DB2000 only.
Frequency response
Inputs (Analog)
Inputs (Digital)
Outputs
EQUALIZER
PHONO
RIAA equalization curve
±0.5 dB
MULTI CHANNEL 
INPUT 1, 2, CD/
SACD, TAPE, MD/
DAT, DVD, TV/SAT, 
VIDEO 1, 2, 3
10 Hz – 40 kHz
±3 dB (8 ohms)
PHONO
S/N: 86 dB
MULTI CHANNEL 
INPUT 1, 2, CD/
SACD, TAPE, MD/
DAT, DVD, TV/SAT, 
VIDEO 1, 2, 3
S/N: 96 dB
DVD (Coaxial)
Impedance: 75 ohms
S/N: 100 dB 
(A, 20 kHz LPF)
DVD, TV/SAT, MD/
DAT, VIDEO3 
(Optical)
S/N: 100 dB
(A, 20 kHz LPF)
TAPE, MD/DAT 
(AUDIO OUT), 
VIDEO 1, 2 (AUDIO 
OUT)
Voltage: 150 mV
Impedance: 2.2 kilohms
FRONT L/R (STR-
DA2000ES only), SUB 
WOOFER
Voltage: 2 V
Impedance: 1 kilohm
Gain levels
±10 dB, 1 dB step
FM STEREO FM/AM RECEIVER
SPECIFICATIONS
STR-DA2000ES/DB2000
Ver. 1.4  2010.02
9-961-061-05
Sony Corporation
2010B05-1 Audio&Video Business Group
© 2010.02 Published by Sony Techno Create Corporation
US Model
Canadian Model
STR-DA2000ES
AEP Model
UK Model
E Model
STR-DB2000
– Continued on next page –
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 ,  DTS-ES Extended Surround , and  Neo:6  are trademarks of 
Digital Theater Systems, Inc.  
Photo: STR-DB2000
2
STR-DA2000ES/DB2000
FM tuner section
Tuning range
87.5 - 108.0 MHz
Antenna
FM wire antenna
Antenna terminals
75 ohms, unbalanced
Sensitivity
Mono:
18.3 dBf, 2.2 
µ
V/75 ohms
Stereo:
38.3 dBf, 22.5 
µ
V/75 ohms 
Useable sensitivity
11.2 dBf, 1 
µ
V/75 ohms
S/N
Mono: 76 
dB
Stereo: 70 
dB
Harmonic distortion at 1 kHz
Mono: 0.3%
Stereo: 0.5%
Separation
45 dB at 1 kHz
Frequency response
30 Hz – 15 kHz, 
+0.5/–2 dB
Selectivity
60 dB at 400 kHz
AM tuner section
Tuning range
STR-DA2000ES:
530 – 1,710 kHz
4)
(With 10-kHz tuning scale)
531 – 1,710 kHz
4)
(With 9-kHz tuning scale)
STR-DB2000:
531 – 1,602 kHz
(With 9-kHz tuning scale)
Antenna
Loop antenna
Usable sensitivity
50 dB/m (at 1,000 kHz or 999 
kHz)
S/N
54 dB (at 50 mV/m)
Harmonic distortion
0.5% (50 mV/m, 400 Hz)
Selectivity
At 9 kHz:
35 dB
At 10 kHz:
40 dB
4) You can change the AM tuning scale to 9 kHz or 10 
kHz. After tuning in any AM station, turn off the 
receiver. While holding down PRESET TUNING + 
or TUNING +, press ?/1. All preset stations will be 
erased when you change the tuning scale. To reset 
the scale to 10 kHz (or 9 kHz), repeat the procedure.
Video section
Inputs/Outputs
Video:
1 Vp-p, 75 ohms
S-video:
Y: 1 Vp-p, 75 ohms
C: 0.286 Vp-p, 75 ohms
COMPONENT VIDEO:Y: 1 Vp-p, 75 ohms
P
B
/C
B
/B-Y: 0.7 Vp-p, 75 
ohms
P
R
/C
R
/R-Y: 0.7 Vp-p, 75 
ohms
General
Power requirements
Power consumption
Power consumption (during standby mode)
1 W
Dimensions
430 
×
 161 
×
 400 mm
including projecting parts and 
controls
Mass (Approx.)
10 kg
Supplied accessories
FM wire antenna (1)
AM loop antenna (1)
STR-DA2000ES:
Remote commander RM-LG112 (1) 
R6 (size-AA) batteries (2)
STR-DB2000:
Remote commander RM-PP412 (1)
R6 (size-AA) batteries (2)
Design and specifications are subject to change 
without notice.
Area code
Power requirements
STR-DA2000ES
 
120 V AC, 60 Hz
STR-DB2000: AEP, UK
 
230 V AC, 50/60 Hz
STR-DB2000: Singapore, Malaysia
220-230 V AC, 50/60 Hz
Area code
Power consumption
Except STR-DA2000ES: Canadian
170 W
STR-DA2000ES : Canadian
300 VA
3
STR-DA2000ES/DB2000
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
0.15 
µ
F
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
SAFETY  CHECK-OUT
After correcting the original service problem, perform the follow-
ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE  TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a VOM
or battery-operated AC voltmeter. The “limit” indication is 0.75
V, so analog meters must have an accurate low-voltage scale.
The Simpson 250 and Sanwa SH-63Trd are examples of a pas-
sive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2 V AC range are suitable.  (See Fig. A)
ATTENTION  AU  COMPOSANT  AYANT  RAPPORT
À  LA  SÉCURITÉ!
LES  COMPOSANTS  IDENTIFIÉS  PAR  UNE  MARQUE  
0
SUR  LES  DIAGRAMMES  SCHÉMATIQUES  ET  LA  LISTE
DES  PIÈCES  SONT  CRITIQUES  POUR  LA  SÉCURITÉ
DE  FONCTIONNEMENT.  NE  REMPLACER  CES  COM-
POSANTS  QUE  PAR  DES  PIÈCES  SONY  DONT  LES
NUMÉROS  SONT  DONNÉS  DANS  CE  MANUEL  OU
DANS  LES  SUPPLÉMENTS  PUBLIÉS  PAR  SONY.
SAFETY-RELATED  COMPONENT  WARNING!!
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  PUB-
LISHED  BY  SONY.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 ˚C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 ˚C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges oc-
cur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
4
STR-DA2000ES/DB2000
1.
SERVICING  NOTES
...............................................
5
2.
GENERAL
Location of Controls .......................................................
8
3.
DISASSEMBLY
3-1. Disassembly Flow ...........................................................
9
3-2. Case ................................................................................. 10
3-3. Front Panel Section ......................................................... 10
3-4. Switching Regulator ........................................................ 11
3-5. MAIN Block .................................................................... 11
3-6. DIGITAL Board .............................................................. 12
3-7. D. AMP Board Section ................................................... 12
4.
TEST  MODE
.............................................................. 13
5.
ELECTRICAL  ADJUSTMENTS
......................... 15
6.
DIAGRAMS
6-1. Block Diagram
– AUDIO (ANALOG) (1/2) Section – ........................... 16
6-2. Block Diagram
– AUDIO (ANALOG) (2/2) Section – ........................... 17
6-3. Block Diagram
– AUDIO (DIGITAL) (1/3) Section – ............................ 18
6-4. Block Diagram
– AUDIO (DIGITAL) (2/3) Section – ............................ 19
6-5. Block Diagram
– AUDIO (DIGITAL) (3/3) Section – ............................ 20
6-6. Block Diagram  – PRE OUT Section – .......................... 21
6-7. Block Diagram  – POWER AMP Section – ................... 22
6-8. Block Diagram  – VIDEO Section – .............................. 23
6-9. Block Diagram  – PANEL Section – .............................. 24
6-10. Block Diagram  – POWER Section – ............................. 25
6-11. Note for Printed Wiring Boards
and Schematic Diagrams ................................................ 26
6-12. Schematic Diagram – 2CH. AU Board (1/3) .................. 27
6-13. Schematic Diagram – 2CH. AU Board (2/3) .................. 28
6-14. Schematic Diagram – 2CH. AU Board (3/3) .................. 29
6-15. Printed Wiring Board
– 2CH. AU Board (Component Side) – .......................... 30
6-16. Printed Wiring Board
– 2CH. AU Board (Conductor Side) – ............................ 31
6-17. Printed Wiring Board
– MULTI-VIDEO Board (Component Side) – ............... 32
6-18. Printed Wiring Board
– MULTI-VIDEO Board (Conductor Side) – ................ 33
6-19. Schematic Diagram – MULTI-VIDEO Board (1/4) – ... 34
6-20. Schematic Diagram – MULTI-VIDEO Board (2/4) – ... 35
6-21. Schematic Diagram – MULTI-VIDEO Board (3/4) – ... 36
6-22. Schematic Diagram – MULTI-VIDEO Board (4/4) – ... 37
6-23. Printed Wiring Board
– UP CONVERT Board (STR-DA2000ES only) – ........ 38
6-24. Schematic Diagram
– UP CONVERT Board (STR-DA2000ES only) – ........ 39
6-25. Printed Wiring Board – S-VIDEO Board – .................... 40
6-26. Schematic Diagram – S-VIDEO Board – ....................... 41
6-27. Printed Wiring Board
– DIGITAL Board (Component Side) – ......................... 42
6-28. Printed Wiring Board
– DIGITAL Board (Conductor Side) – ........................... 43
6-29. Schematic Diagram – DIGITAL Board (1/8) – .............. 44
6-30. Schematic Diagram – DIGITAL Board (2/8) – .............. 45
6-31. Schematic Diagram – DIGITAL Board (3/8) – .............. 46
TABLE  OF  CONTENTS
6-32. Schematic Diagram – DIGITAL Board (4/8) – .............. 47
6-33. Schematic Diagram – DIGITAL Board (5/8) – .............. 48
6-34. Schematic Diagram – DIGITAL Board (6/8) – .............. 49
6-35. Schematic Diagram – DIGITAL Board (7/8) – .............. 50
6-36. Schematic Diagram – DIGITAL Board (8/8) – .............. 51
6-37. Printed Wiring Board
– D. AMP Board (Component Side) – ............................ 52
6-38. Printed Wiring Board
– D. AMP Board (Conductor Side) – ............................. 53
6-39. Schematic Diagram – D. AMP Section (1/6) – .............. 54
6-40. Schematic Diagram – D. AMP Section (2/6) – .............. 55
6-41. Schematic Diagram – D. AMP Section (3/6) – .............. 56
6-42. Schematic Diagram – D. AMP Section (4/6) – .............. 57
6-43. Schematic Diagram – D. AMP Section (5/6) – .............. 58
6-44. Schematic Diagram – D. AMP Section (6/6) – .............. 59
6-45. Printed Wiring Board
– CIS Board (STR-DA2000ES only) – .......................... 60
6-46. Schematic Diagram
– CIS Board (STR-DA2000ES only) – .......................... 61
6-47. Printed Wiring Board – PANEL Section – ..................... 62
6-48. Schematic Diagram – PANEL Section – ........................ 63
6-49. Printed Wiring Board – HP-V3 Board – ........................ 64
6-50. Schematic Diagram – HP-V3 Board – ........................... 65
6-51. Printed Wiring Board – REG Board – ............................ 66
6-52. Schematic Diagram – REG Board – ............................... 67
6-53. IC Pin Function Description ........................................... 79
7.
EXPLODED  VIEWS
7-1. Case Section ................................................................... 91
7-2. Front Panel Section ........................................................ 92
7-3. Base Panel Section ......................................................... 93
7-4. Power Block Section ...................................................... 94
7-5. Tuner Section ................................................................. 95
7-6. Back Panel Section ......................................................... 96
7-7. Chassis Section .............................................................. 97
7-8. Boards Section ............................................................... 98
7-9. HEAT SINK Section ...................................................... 99
7-10. D. AMP Board Section .................................................. 100
8.
ELECTRICAL  PARTS  LIST
.............................. 101
Page of 127

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  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).