STR-DA7100ES - Sony Audio Service Manual (repair manual)

US Model

Canadian Model

AEP Model

Taiwan Model

Korean Model

Chinese Model

2005L05-1
© 2005.12

– 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”, “Surround EX”, and the 
double-D symbol are trademarks of Dolby 
Laboratories.

** Manufactured under license from Digital 

Theater Systems, Inc. U.S. Pat.
No’s. 5,451,942; 5,956,674; 5,974,380; 
5,978,762; 6,226,616; 6,487,535 and other U.S. 
and world-wide patents issued and pending. 
“DTS”, “DTS-ES”, “Neo:6”, and “DTS 96/24” 
are trademarks of Digital Theater Systems, Inc. 
Copyright 1996, 2003 Digital Theater Systems, 
Inc. All Rights Reserved.

POWER OUTPUT AND TOTAL 
HARMONIC DISTORTION:
(Models of area code US only)
With 8 ohm loads, both channels driven, from 
20 – 20,000 Hz; rated 170 watts per channel 
minimum RMS power, with no more than 
0.15% total harmonic distortion from 250 
milliwatts to rated output.

Models of area code US, CND, TW:

POWER OUTPUT

Rated Power Output at Stereo Mode

1)

(8 ohms 20 Hz – 20 kHz, 
THD 0.15%):
170 W + 170 W

Reference Power Output at Stereo Mode

(4 ohms 20 Hz – 20 kHz, 
THD 0.15%):
170 W + 170 W

Reference Power Output

(8 ohms 20 Hz – 20 kHz, 
THD 0.15%)
FRONT

2)

: 170 W + 170 W

CENTER

2)

: 170 W

SURR

2)

: 170 W + 170 W

SURR BACK

2)

: 170 W + 

170 W

Reference Power Output

(4 ohms 20 Hz – 20 kHz, 
THD 0.15%)
FRONT

2)

: 170 W + 170 W

CENTER

2)

: 170 W

SURR

2)

: 170 W + 170 W

SURR BACK

2)

: 170 W + 

170 W

Models of area code AEP, KR, CH:

POWER OUTPUT

Rated Power Output in Stereo Mode

1)

(8 ohms 1 kHz, THD 
0.7%):
170 W + 170 W

Reference Power Output in Stereo Mode

(4 ohms 1 kHz, THD 
0.7%):
170 W + 170 W

Reference Power Output

(8 ohms 1 kHz, THD 
0.7%):
FRONT

2)

: 170 W + 170 W

CENTER

2)

: 170 W

SURR

2)

: 170 W + 170 W

SURR BACK

2)

: 170 W + 

170 W

2

0

 0

0

•

Abbreviation
CH : Chinese model
CND : Canadian model
KR : Korean model
TW : Taiwan model

Reference Power Output

(4 ohms 1 kHz, THD 
0.7%):
FRONT

2)

: 170 W + 170 W

CENTER

2)

: 170 W

SURR

2)

: 170 W + 170 W

SURR BACK

2)

: 170 W + 

170 W

1)

Depending on the sound field settings and the 
source, there may be no sound output.

2)

Measured under the following conditions:

Frequency response

Inputs (Analog)

Inputs (Digital)

Outputs

EQUALIZER

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 

Usable 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

Tuning range

Models of area code US, CND:

530 – 1,710 kHz

3)

(With 10-kHz tuning scale)
531 – 1,710 kHz

3)

(With 9-kHz tuning scale)

US, CND

120 V AC, 60 Hz

TW

110 V AC, 60 Hz

AEP

230 V AC, 50/60 Hz

KR

230 V AC, 60 Hz

PHONO

RIAA equalization curve 

±

 0.5 dB

Power Amp Block

10 Hz – 50 kHz

±

 3 dB (8 ohms)

PHONO

Sensitivity: 2.5mV
Impedance: 50kohms
S/N: 86dB (A, 20 kHz 
LPF)

MULTI CHANNEL
INPUT1/2, SA-CD/CD, 
TAPE, MD/DAT, DVD, 
TV/SAT, VIDEO1/2/3

Sensitivity: 150mV
Impedance: 50kohms
S/N: 96dB (A, 20 kHz 
LPF)

CH

230 V AC, 50 Hz

SA-CD/CD, DVD 
(Coaxial)

Impedance: 75ohms
S/N: 96dB (A, 20 kHz 
LPF)

SA-CD/CD, DVD,
TV/SAT, MD/DAT,
VIDEO 3 (Optical)

S/N: 96 dB
(A, 20 kHz LPF)

TAPE, MD/DAT
(REC OUT),
VIDEO1/2 (AUDIO OUT)

Voltage:150mV
Impedance: 10kohms

FRONT L/R, CENTER, 
SURROUND L/R, 
SURROUND BACK L/R, 
SUB WOOFER

Voltage: 2V
Impedance: 1kohms

Gain levels

±

10 dB, 1 dB step

Models of other area codes:

531 – 1,602 kHz
(With 9-kHz tuning scale)

Antenna

Loop antenna

Usable sensitivity

50 dB 

µ

/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

3)

You can change the AM tuning scale to either 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.

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
80 MHz HD Pass Through 
(When PROGRESSIVE 
OUT is set to “OFF”)

Pin

4 pins

Transmission speed S200 (Maximum data 

transmission speed 200 
Mbps)

Transmission protocol

A/M transmission protocol

Format (input)

Super Audio CD* (DSD 
PLAIN)
2 channel linear PCM 
(IEC-60958-3)
Sampling frequency: 44.1 
kHz

* Conforms to the copy protection technology of 

DTLA (Revision 1.3).

Power requirements

Power consumption

Power consumption (during standby mode)

1 W

AC outlets

Dimensions

430 

×

 175 

×

 470 mm

(17 

×

 7 

×

 18 

5

/

8

 in.)

including projecting parts 
and controls

Mass (Approx.)

23.5 kg (51 lb. 13 oz.)

FM wire antenna (1)
AM loop antenna (1)
AC power cord (1)
Remote commander RM-AAE003 (1)
LR6

  (size-AA) batteries (3)

Remote commander RM-US106A (1)
R6 (size-AA) batteries (2)

Design and specifications are subject to 
change without notice.

US, CND

120 V AC, 60 Hz

AEP

230 V AC, 50/60 Hz

TW

110 V AC, 60 Hz

KR

220 V AC, 60 Hz

US, AEP, TW, KR,
CH

250 W

CND

300 VA

US, CND

2 switched, 120 W/1A MAX

AEP

1 switched, 100 W MAX

TW, KR, CH

– (no AC outlet)

CH

220 V AC, 50 Hz

3

•

Never reuse a disconnected chip component.

•

Notice that the minus side of a tantalum capacitor may be

damaged by heat.

After correcting the original service problem, perform the following
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.

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 passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2 V AC range are suitable.  (See
Fig. A)

Ω

µ

4

................................................

5

................................................................... 13

3-1.

Disassembly Flow .......................................................... 18

3-2.

Case ................................................................................ 18

3-3.

Front Panel Assy ............................................................. 19

3-4.

Bottom Plate ................................................................... 20

3-5.

D-AMP Board Block ...................................................... 20

3-6.

DC Fan Block ................................................................. 21

3-7.

Back Panel Block ........................................................... 21

3-8.

Mother COM Board ....................................................... 22

.............................................................. 23

......................... 27

6-1.

Block  Diagram  – Audio Input Section – ...................... 61

6-2.

Block  Diagram  – Control Section – ............................. 62

6-3.

Block  Diagram  – i.LINK Section – .............................. 63

6-4.

Block  Diagram  – DSP Section – .................................. 64

6-5.

Block  Diagram  – Digital Audio Section – .................... 65

6-6.

Block  Diagram  – Audio Output Section – .................... 66

6-7.

Block  Diagram  – Power AMP Section – ...................... 67

6-8.

Block  Diagram  – SUB Section – .................................. 68

6-9.

Block  Diagram  – Video Input Section – ....................... 69

6-10. Block  Diagram  – CIS Display Section – ...................... 70
6-11. Block  Diagram  – HDMI Receiver Section – ................ 71
6-12. Block  Diagram  – HDMI Trasceiver Section – ............. 72
6-13. Block  Diagram  – Power Supply Section – ................... 73
6-14. Printed  Wiring  Board

– Digital Board (Component Side) – .............................. 74

6-15. Printed  Wiring  Board

– Digital Board (Conductor Side) – ............................... 75

6-16. Schematic  Diagram  – Digital Board (1/8) – ................. 76
6-17. Schematic  Diagram  – Digital Board (2/8) – ................. 77
6-18. Schematic  Diagram  – Digital Board (3/8) – ................. 78
6-19. Schematic  Diagram  – Digital Board (4/8) – ................. 79
6-20. Schematic  Diagram  – Digital Board (5/8) – ................. 80
6-21. Schematic  Diagram  – Digital Board (6/8) – ................. 81
6-22. Schematic  Diagram  – Digital Board (7/8) – ................. 82
6-23. Schematic  Diagram  – Digital Board (8/8) – ................. 83
6-24. Printed  Wiring  Board  – DSP Board – ......................... 84
6-25. Schematic  Diagram  – DSP Board – ............................. 85
6-26. Printed  Wiring  Board

– Analog Board (Component Side) – ............................. 86

6-27. Printed  Wiring  Board

– Analog Board (Conductor Side) – ............................... 87

6-28. Schematic  Diagram  – Analog Board (1/4) – ................ 88
6-29. Schematic  Diagram  – Analog Board (2/4) – ................ 89
6-30. Schematic  Diagram  – Analog Board (3/4) – ................ 90
6-31. Schematic  Diagram  – Analog Board (4/4) – ................ 91
6-32. Schematic  Diagram  – Ilink Section (1/10) – ................ 92
6-33. Schematic  Diagram  – Ilink Section (2/10) – ................ 93
6-34. Schematic  Diagram  – Ilink Section (3/10) – ................ 94
6-35. Schematic  Diagram  – Ilink Section Board (4/10) – ..... 95
6-36. Schematic  Diagram  – Ilink Section (5/10) – ................ 96
6-37. Schematic  Diagram  – Ilink Section (6/10) – ................ 97
6-38. Schematic  Diagram  – Ilink Section (7/10) – ................ 98
6-39. Schematic  Diagram  – Ilink Section (8/10)– ................. 99
6-40. Schematic  Diagram  – Ilink Section (9/10) – ................ 100
6-41. Schematic  Diagram  – Ilink Section (10/10) – .............. 101
6-42. Printed  Wiring  Board

– Ilink Board (Component Side) – ................................. 102

6-43. Printed  Wiring  Board

– ILINK Board (Conductor Side) – ................................ 103

6-44. Printed  Wiring  Board  – Conect Boards – .................... 104
6-45. Schematic  Diagram  – Video Board (1/3) – .................. 105
6-46. Schematic  Diagram  – Video Board (2/3) – .................. 106
6-47. Schematic  Diagram  – Video Board (3/3) – .................. 107
6-48. Printed  Wiring  Board

– Video Board (Component Side) – ............................... 108

6-49. Printed  Wiring  Board

– Video Board (Conductor Side) – ................................. 109

6-50. Printed  Wiring  Board

– S-video Board (Component Side) – ............................ 110

6-51. PPrinted  Wiring  Board

– S-video Board (Conductor Side) – .............................. 111

6-52. Printed  Wiring  Board  – Video3 Board – ..................... 112
6-53. Schematic  Diagram  – S-video Section – ...................... 113
6-54. Printed  Wiring  Board

– Mother COM Board (Component Side) – ................... 114

6-55. Printed  Wiring  Board

– Mother COM Board (Conductor Side) – ..................... 115

6-56. Schematic  Diagram  – Mother COM Board (1/3) – ...... 116
6-57. Schematic  Diagram  – Mother COM Board (2/3) – ...... 117
6-58. Schematic  Diagram  – Mother COM Board (3/3) – ...... 118
6-59. Printed  Wiring  Board

– D-AMP Board (Component Side) – ............................ 119

6-60. Printed  Wiring  Board

– D-AMP Board (Conductor Side) – .............................. 120

6-61. Schematic  Diagram  – D-AMP Board (1/4) – ............... 121
6-62. Schematic  Diagram  – D-AMP Board (2/4) – ............... 122
6-63. Schematic  Diagram  – D-AMP Board (3/4) – ............... 123
6-64. Schematic  Diagram  – D-AMP Board (4/4) – ............... 124
6-65. Printed  Wiring  Board  – Filter-l Boards – .................... 125
6-66. Schematic  Diagram  – Filter-l Board – .......................... 126
6-67. Printed  Wiring  Board  – Filter-R Boards – ................... 127
6-68. Schematic  Diagram  – Filter-R Board – ........................ 128
6-69. Printed  Wiring  Board

– SP-Term COM Board (Component Side) – ................ 129

6-70. Printed  Wiring  Board

– SP-Term Com Board (Conductor Side) – .................... 130

6-71. Schematic  Diagram  – SP-Term COM Board (1/3) – ... 131
6-72. Schematic  Diagram  – SP-Term COM Board (2/3) – ... 132
6-73. Schematic  Diagram  – SP-Term COM Board (3/3) – ... 133
6-74. Printed Wiring Board

– CIS Board (Component Side) – ................................... 134

6-75. Printed  Wiring  Board

– CIS Board (Conductor Side) – .................................... 135

6-76. Schematic  Diagram  – CIS Board – .............................. 136
6-77. Printed  Wiring  Board  – FL Board – ............................ 137
6-78. Schematic  Diagram  – FL Board – ................................ 138
6-79. Printed  Wiring  Board  – Panel Section – ...................... 139
6-80. Schematic  Diagram  – Panel Section – ......................... 140
6-81. Printed  Wiring  Board  – Regulator Sections – ............. 141
6-82. Schematic  Diagram  – Regulator Sections – ................. 142
6-83. Printed  Wiring  Board  – DC DIF Board – .................... 143
6-84. Schematic  Diagram  – DC DIF Boards – ...................... 144
6-85. Printed  Wiring  Board  – AC DIF Section – .................. 145
6-86. Schematic  Diagram  – AC DIF Section – ...................... 146

7-1.

Cover Section ................................................................. 165

7-2.

Front Panel Section-1 ..................................................... 166

7-3.

Front Panel Section-2 ..................................................... 167

7-4.

Chassis Section-1 ........................................................... 168

7-5.

Chassis Section-2 ........................................................... 169

7-6.

Chassis Section-3 ........................................................... 170

............................... 171