Sony HT-7100DH / STR-K7100 Service Manual ▷ View online
1
SERVICE MANUAL
US Model
STR-K7100
MULTI CHANNEL AV RECEIVER
Amplifier section
Power Output
1)
Stereo mode (rated) (6 ohms, 1 kHz, THD 1%)
90 W + 90 W
Surround mode (reference) (6 ohms, 1 kHz, THD 10%)
RMS Output
2)
FRONT: 140 W/ch
CENTER: 140 W
SURROUND: 140 W/ch
CENTER: 140 W
SURROUND: 140 W/ch
1) Measured under the following conditions:
Area code
Power requirements
US
120 V AC, 60 Hz
2) Reference power output for front, center and surround
speakers. Depending on the sound field settings and the
source, there may be no sound output.
source, there may be no sound output.
SPECIFICATIONS
Inputs
Analog
Sensitivity: 800 mV/
50 kohms
Digital (Coaxial)
Impedance: 75 ohms
Outputs (Analog)
AUDIO OUT
Voltage: 800 mV/10 kohms
SUB WOOFER
Voltage: 2 V/1 kohm
Tone
Gain levels
±6 dB, 1 dB step
Reproduction frequency range:
28 – 20,000 Hz
FM tuner section
Tuning range
87.5 – 108.0 MHz
Antenna
FM wire antenna
Antenna terminals
75 ohms, unbalanced
Intermediate frequency
10.7 MHz
Ver. 1.0 2007.03
9-887-608-01
2007C04-1
© 2007.03
Sony Corporation
Home Audio Division
Published by Sony Techno Create Corporation
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 trademarks of
DTS, Inc.
“Dolby”, “Pro Logic” and the double-D symbol are
trademarks of Dolby Laboratories.
“DTS” and “DTS Digital Surround” are trademarks of
DTS, Inc.
This receiver incorporates High-Definition
Multimedia Interface (HDMI
Multimedia Interface (HDMI
TM
) technology.
HDMI, the HDMI logo and High-Definition
Multimedia Interface are trademarks or registered
trademarks of HDMI Licensing LLC.
Multimedia Interface are trademarks or registered
trademarks of HDMI Licensing LLC.
– Continued on next page –
The XM name and related logos are registered
trademarks of XM Satellite Radio Inc.
trademarks of XM Satellite Radio Inc.
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
With 6 ohm loads, both channels driven, from 120 – 20,000 Hz;
rated 90 watts per channel minimum RMS power, with no
more than 1% total harmonic distortion from 250 milliwatts
to rated output.
POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
With 6 ohm loads, both channels driven, from 120 – 20,000 Hz;
rated 90 watts per channel minimum RMS power, with no
more than 1% total harmonic distortion from 250 milliwatts
to rated output.
2
STR-K7100
AM tuner section
Tuning range
With 10-kHz tuning scale: 530 – 1,710 kHz
3)
With 9-kHz tuning scale: 531 – 1,710 kHz
3)
Antenna
Loop antenna
Intermediate frequency
450 kHz
3) 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 TUNING
MODE, 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.
the receiver. While holding down TUNING
MODE, 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
COMPONENT VIDEO:
Y: 1 Vp-p, 75 ohms
P
P
B
/C
B
: 0.7 Vp-p,
75 ohms
P
P
R
/C
R
: 0.7 Vp-p,
75 ohms
80 MHz HD Pass Through
80 MHz HD Pass Through
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 PUBLISHED BY SONY.
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 SONY.
General
Power requirements
Area code
Power requirements
US
120 V AC, 60 Hz
Power output (DIGITAL MEDIA PORT)
DC OUT:
5 V, 700 mA
Power consumption
Area code
Power consumption
US
170 W
Power consumption (during standby mode)
0.3 W
Dimensions (w/h/d) (Approx.)
430
× 157.5 × 316 mm
(17
× 6
1/4
× 12
1/2
inches)
including projecting parts
and controls
and controls
Mass (Approx.)
8.0 kg (17 lb 11 oz)
Design and specifications are subject to change
without notice.
without notice.
3
STR-K7100
MODEL IDENTIFICATION
— BACK PANEL —
Part No.
MODEL
PART No.
US
2-897-800-6s
1.5 k
Ω
0.15
µ
F
AC
voltmeter
(0.75 V)
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
SAFETY CHECK-OUT (US MODEL)
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.
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 microampers.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
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 microampers.).
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.
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” indica-
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are suit-
able. (See Fig. A)
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are suit-
able. (See Fig. A)
Fig. A. Using an AC voltmeter to check AC leakage.
•
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
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
• 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
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 viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
than ordinary solder so use caution not to let solder bridges
occur 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.
also be added to ordinary solder.
Notes on Chip Component Replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be damaged
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be damaged
by heat.
4
TABLE OF CONTENTS
1. GENERAL
Description and location of parts ............................................. 5
2. DISASSEMBLY
2-1. Case ..................................................................................... 8
2-2. Back Panel Section .............................................................. 9
2-3. Front Panel Section ............................................................. 9
2-4. DIGITAL Board ................................................................ 10
2-5. MAIN Board Section ........................................................ 10
2-6. STANDBY Board ............................................................. 11
2-2. Back Panel Section .............................................................. 9
2-3. Front Panel Section ............................................................. 9
2-4. DIGITAL Board ................................................................ 10
2-5. MAIN Board Section ........................................................ 10
2-6. STANDBY Board ............................................................. 11
3. TEST MODE
..................................................................... 12
4. FM TUNER CHECK
....................................................... 13
5. DIAGRAMS
5-1. Circuit Boards Location .................................................... 14
5-2. Block Diagram – Tuner/Audio Section – .......................... 15
5-3. Block Diagram – Digital Section – ................................... 16
5-4. Block Diagram – Video Section – ..................................... 17
5-5. Block Diagram – HDMI SW Section – ............................ 18
5-6. Block Diagram – XM Section – ........................................ 19
5-7. Block Diagram – Key/Display Section – .......................... 20
5-8. Block Diagram – Output/Power Section – ........................ 21
5-9. Printed Wiring Boards – Main Section – .......................... 23
5-10. Schematic Diagram – Main Section (1/2) – ...................... 24
5-11. Schematic Diagram – Main Section (2/2) – ...................... 25
5-12. Printed Wiring Board – Digital Section (1/2) – ................ 26
5-13. Printed Wiring Board – Digital Section (2/2) – ................ 27
5-14. Schematic Diagram – Digital Section (1/3) – ................... 28
5-15. Schematic Diagram – Digital Section (2/3) – ................... 29
5-16. Schematic Diagram – Digital Section (3/3) – ................... 30
5-17. Printed Wiring Boards – Video Section – ......................... 31
5-18. Schematic Diagram – Video Section – .............................. 32
5-19. Printed Wiring Board – HDMI SW Section – ................... 33
5-20. Schematic Diagram – HDMI SW Section – ..................... 34
5-21. Printed Wiring Board – XM Section – .............................. 35
5-22. Schematic Diagram – XM Section – ................................. 36
5-23. Printed Wiring Boards – DCAC, Power Key Section – .... 37
5-24. Schematic Diagram – DCAC, Power Key Section – ........ 37
5-25. Printed Wiring Board – Display Section – ........................ 38
5-26. Schematic Diagram – Display Section – ........................... 39
5-27. Printed Wiring Board – Power Section – .......................... 40
5-28. Schematic Diagram – Power Section – ............................. 40
5-29. Printed Wiring Board – DCDC Section – ......................... 41
5-30. Schematic Diagram – DCDC Section – ............................ 41
5-2. Block Diagram – Tuner/Audio Section – .......................... 15
5-3. Block Diagram – Digital Section – ................................... 16
5-4. Block Diagram – Video Section – ..................................... 17
5-5. Block Diagram – HDMI SW Section – ............................ 18
5-6. Block Diagram – XM Section – ........................................ 19
5-7. Block Diagram – Key/Display Section – .......................... 20
5-8. Block Diagram – Output/Power Section – ........................ 21
5-9. Printed Wiring Boards – Main Section – .......................... 23
5-10. Schematic Diagram – Main Section (1/2) – ...................... 24
5-11. Schematic Diagram – Main Section (2/2) – ...................... 25
5-12. Printed Wiring Board – Digital Section (1/2) – ................ 26
5-13. Printed Wiring Board – Digital Section (2/2) – ................ 27
5-14. Schematic Diagram – Digital Section (1/3) – ................... 28
5-15. Schematic Diagram – Digital Section (2/3) – ................... 29
5-16. Schematic Diagram – Digital Section (3/3) – ................... 30
5-17. Printed Wiring Boards – Video Section – ......................... 31
5-18. Schematic Diagram – Video Section – .............................. 32
5-19. Printed Wiring Board – HDMI SW Section – ................... 33
5-20. Schematic Diagram – HDMI SW Section – ..................... 34
5-21. Printed Wiring Board – XM Section – .............................. 35
5-22. Schematic Diagram – XM Section – ................................. 36
5-23. Printed Wiring Boards – DCAC, Power Key Section – .... 37
5-24. Schematic Diagram – DCAC, Power Key Section – ........ 37
5-25. Printed Wiring Board – Display Section – ........................ 38
5-26. Schematic Diagram – Display Section – ........................... 39
5-27. Printed Wiring Board – Power Section – .......................... 40
5-28. Schematic Diagram – Power Section – ............................. 40
5-29. Printed Wiring Board – DCDC Section – ......................... 41
5-30. Schematic Diagram – DCDC Section – ............................ 41
6. EXPLODED VIEWS
6-1. Case Section ...................................................................... 55
6-2. Front Panel Section ........................................................... 56
6-3. Back Panel Section ............................................................ 57
6-4. Chassis Section ................................................................. 58
6-2. Front Panel Section ........................................................... 56
6-3. Back Panel Section ............................................................ 57
6-4. Chassis Section ................................................................. 58
7. ELECTRICAL PARTS LIST
......................................... 59
STR-K7100
