Read Sony HT-7200DH / STR-K7200 Service Manual online
SERVICE MANUAL
Sony Corporation
Audio&Video Business Group
Published by Sony Techno Create Corporation
STR-K7200
SPECIFICATIONS
MULTI CHANNEL AV RECEIVER
9-887-947-02
2010B05-1
©
2010.02
US Model
Ver. 1.1 2010.02
• STR-K7200 is the receiver section in HT-7200DH.
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.
** Manufactured under license under U.S. Patent #’s: 5,451,942; 5,956,674; 5,974,380; 5,978,762; 6,487,535
& other U.S. and worldwide patents issued & pending. DTS and DTS Digital Surround are registered
trademarks and the DTS logos and Symbol are trademarks of DTS, Inc. © 1996-2007 DTS, Inc.
All Rights Reserved.
This receiver incorporates High-Definition Multimedia Interface (HDMI
* Manufactured under license from Dolby Laboratories. Dolby, Pro Logic, and the double-D symbol are
trademarks of Dolby Laboratories.
** Manufactured under license under U.S. Patent #’s: 5,451,942; 5,956,674; 5,974,380; 5,978,762; 6,487,535
& other U.S. and worldwide patents issued & pending. DTS and DTS Digital Surround are registered
trademarks and the DTS logos and Symbol are trademarks of DTS, Inc. © 1996-2007 DTS, Inc.
All Rights Reserved.
This receiver incorporates High-Definition Multimedia Interface (HDMI
TM
) technology.HDMI, the HDMI logo
and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC.
The XM name and related logo are registered trademarks of XM Satellite Radio Inc. All rights reserved.
“x.v.Color” and “x.v.Color” logo are trademarks of Sony Corporation.
The XM name and related logo are registered trademarks of XM Satellite Radio Inc. All rights reserved.
“x.v.Color” and “x.v.Color” logo are trademarks of Sony Corporation.
“BRAVIA” and are trademarks of Sony Corporation.
AUDIO POWER
SPECIFICATIONS
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.
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.
Amplifier section
Power Output
1)
Stereo mode (rated)
(6 ohms 1
(6 ohms 1
kHz, THD 1%)
90 W + 90 W
Surround mode (reference)
(6 ohms 1 kHz
(6 ohms 1 kHz
, THD 10%)
RMS Output
2)
FRONT: 140 W
per channel
CENTER: 140 W
SURROUND: 140 W
per channel
1)
Measured under 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.
surround speakers. Depending on the sound field
settings and the source, there may be no sound
output.
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
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
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 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
R
/C
R
: 0.7 Vp-p, 75 ohms
80 MHz HD Pass Through
– Continued on next page –
STR-K7200
2
Design and specifi cations are subject to
change without notice.
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
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.
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
General
Power requirements 120 V AC, 60 Hz
Power output (DIGITAL MEDIA PORT)
Power output (DIGITAL MEDIA PORT)
DC OUT
5 V, 0.7A MAX
Power consumption 170 W
Power consumption (during standby mode)
Power consumption (during standby mode)
0.3 W (when “CONTROL
FOR HDMI” in VIDEO
menu is set to “CTRL
OFF”)
FOR HDMI” in VIDEO
menu is set to “CTRL
OFF”)
Dimensions (w/h/d) (Approx.)
17 × 6 1/4 × 12 5/8 inches
(430 × 157.5 × 318 mm)
including projecting parts
and controls
including projecting parts
and controls
Mass (Approx.)
17 lb 4 oz (7.8 kg)
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.
aged by heat.
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.
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
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.
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)
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)
Fig. A. Using an AC voltmeter to check AC leakage.
1.5 k
Ω
0.15
μF
AC
voltmeter
(0.75 V)
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
STR-K7200
3
1.
SERVICING NOTES
............................................. 3
2. GENERAL
.................................................................. 4
3. DISASSEMBLY
3-1. Disassembly Flow .......................................................... 9
3-2. Case ................................................................................. 9
3-3. Back Panel Block ............................................................ 10
3-4. Front Panel Block .......................................................... 10
3-5. Main Block ..................................................................... 11
3-6. MAIN Board ................................................................... 11
3-2. Case ................................................................................. 9
3-3. Back Panel Block ............................................................ 10
3-4. Front Panel Block .......................................................... 10
3-5. Main Block ..................................................................... 11
3-6. MAIN Board ................................................................... 11
4.
TEST MODE
............................................................ 12
5.
ELECTRICAL CHECK
......................................... 14
6. DIAGRAMS
6-1. Block Diagram - MAIN Section - ................................... 15
6-2. Block Diagram - HDMI Section - ................................... 16
6-3. Block Diagram - DSP/XM Section - .............................. 17
6-4. Block Diagram - AUDIO Section - ................................. 18
6-5. Block Diagram - POWER SUPPLY Section - ................ 19
6-6. Printed Wiring Board - MAIN Board - ........................... 21
6-7. Schematic Diagram - MAIN Board (1/3) - ..................... 22
6-8. Schematic Diagram - MAIN Board (2/3) - ..................... 23
6-9. Schematic Diagram - MAIN Board (3/3) - ..................... 24
6-10. Schematic Diagram - DIGITAL AB Board (1/5) -.......... 25
6-11. Schematic Diagram - DIGITAL AB Board (2/5) -.......... 26
6-12. Schematic Diagram - DIGITAL AB Board (3/5) -.......... 27
6-13. Schematic Diagram - DIGITAL AB Board (4/5) -.......... 28
6-14. Schematic Diagram - DIGITAL AB Board (5/5) -.......... 29
6-15. Printed Wiring Board
6-2. Block Diagram - HDMI Section - ................................... 16
6-3. Block Diagram - DSP/XM Section - .............................. 17
6-4. Block Diagram - AUDIO Section - ................................. 18
6-5. Block Diagram - POWER SUPPLY Section - ................ 19
6-6. Printed Wiring Board - MAIN Board - ........................... 21
6-7. Schematic Diagram - MAIN Board (1/3) - ..................... 22
6-8. Schematic Diagram - MAIN Board (2/3) - ..................... 23
6-9. Schematic Diagram - MAIN Board (3/3) - ..................... 24
6-10. Schematic Diagram - DIGITAL AB Board (1/5) -.......... 25
6-11. Schematic Diagram - DIGITAL AB Board (2/5) -.......... 26
6-12. Schematic Diagram - DIGITAL AB Board (3/5) -.......... 27
6-13. Schematic Diagram - DIGITAL AB Board (4/5) -.......... 28
6-14. Schematic Diagram - DIGITAL AB Board (5/5) -.......... 29
6-15. Printed Wiring Board
- DIGITAL AB Board (Component Side) -..................... 30
6-16. Printed Wiring Board
- DIGITAL AB Board (Conductor Side) - ...................... 31
6-17. Printed Wiring Board - XM Board - ............................... 32
6-18. Schematic Diagram - XM Board - .................................. 33
6-19. Printed Wiring Boards
6-18. Schematic Diagram - XM Board - .................................. 33
6-19. Printed Wiring Boards
- MIC/HEADPHONE Section - ...................................... 34
6-20. Schematic Diagram - MIC/HEADPHONE Section - ..... 35
6-21. Printed Wiring Board - HDMI Board (Side A) - ............ 36
6-22. Printed Wiring Board - HDMI Board (Side B) - ............ 37
6-23. Schematic Diagram - HDMI Board (1/2) - ..................... 38
6-24. Schematic Diagram - HDMI Board (2/2) - ..................... 39
6-25. Printed Wiring Boards - VIDEO Section - ..................... 40
6-26. Schematic Diagram - VIDEO Section - .......................... 41
6-27. Printed Wiring Boards - PANEL Section - ..................... 42
6-28. Schematic Diagram - PANEL Section - .......................... 43
6-29. Printed Wiring Board - DCDC CONVERTER Board - .. 44
6-30. Schematic Diagram - DCDC CONVERTER Board - .... 45
6-31. Printed Wiring Board - STANDBY Board - ................... 46
6-32. Schematic Diagram - STANDBY Board - ...................... 47
6-21. Printed Wiring Board - HDMI Board (Side A) - ............ 36
6-22. Printed Wiring Board - HDMI Board (Side B) - ............ 37
6-23. Schematic Diagram - HDMI Board (1/2) - ..................... 38
6-24. Schematic Diagram - HDMI Board (2/2) - ..................... 39
6-25. Printed Wiring Boards - VIDEO Section - ..................... 40
6-26. Schematic Diagram - VIDEO Section - .......................... 41
6-27. Printed Wiring Boards - PANEL Section - ..................... 42
6-28. Schematic Diagram - PANEL Section - .......................... 43
6-29. Printed Wiring Board - DCDC CONVERTER Board - .. 44
6-30. Schematic Diagram - DCDC CONVERTER Board - .... 45
6-31. Printed Wiring Board - STANDBY Board - ................... 46
6-32. Schematic Diagram - STANDBY Board - ...................... 47
7.
EXPLODED VIEWS
7-1. Front Panel Section ......................................................... 65
7-2. Back Panel Section ......................................................... 66
7-3. MAIN
7-2. Back Panel Section ......................................................... 66
7-3. MAIN
Section
................................................................. 67
8.
ELECTRICAL PARTS LIST
.............................. 68
TABLE OF CONTENTS
SECTION 1
SERVICING NOTES
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
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
• 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.
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
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 fl ow)
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.
NOTE OF REPLACING THE IC3511 AND IC3513 ON
THE HDMI BOARD
IC3511 and IC3513 on the HDMI board cannot exchange with sin-
gle. When IC3511 and IC3513 on the HDMI board are damaged,
exchange the entire mounted board.
THE HDMI BOARD
IC3511 and IC3513 on the HDMI board cannot exchange with sin-
gle. When IC3511 and IC3513 on the HDMI board are damaged,
exchange the entire mounted board.
NOTE OF REPLACING THE IC1131 ON THE DIGITAL
AB BOARD
IC1131 on the DIGITAL AB board cannot exchange with single.
When IC1131 on the DIGITAL AB board is damaged, exchange
the entire mounted board.
AB BOARD
IC1131 on the DIGITAL AB board cannot exchange with single.
When IC1131 on the DIGITAL AB board is damaged, exchange
the entire mounted board.
STR-K7200
4
SECTION 2
GENERAL
Front panel
AUTO CAL MIC
SPEAKERS
(ON/OFF)
PHONES
VIDEO 2 IN/PORTABLE AV IN
VIDEO
L AUDIO R
MEMORY/
ENTER
TUNING
MODE
TUNING
2CH
A.F.D.
MOVIE
MUSIC
AUTO CAL
MUTING
DISPLAY
INPUT MODE
INPUT SELECTOR
MASTER VOLUME
R
RT
RE
RG
RB
RH
RI
RK
Name
Function
" /
(on/standby)
Press to turn the receiver on
or off.
or off.
# SPEAKERS
(ON/OFF)
Press to turn the speaker
system on or off.
system on or off.
$ Display
The current status of the
selected component or a list
of selectable items appears
here.
selected component or a list
of selectable items appears
here.
% Remote sensor Receives signals from
remote commander.
& DISPLAY
Press to select information
displayed on the display.
displayed on the display.
' INPUT MODE
Press to select the input
mode when the same
components are connected
to both digital and analog
jacks.
mode when the same
components are connected
to both digital and analog
jacks.
( MASTER
VOLUME
Turn to adjust the volume
level of all speakers at the
same time.
level of all speakers at the
same time.
) MUTING
Press to turn off the sound
temporarily.
Press MUTING again to
restore the sound.
temporarily.
Press MUTING again to
restore the sound.
* AUTO CAL
Press to activate the Auto
Calibration function.
Calibration function.
Name
Function
+ INPUT
SELECTOR
Turn to select the input
source to play back.
source to play back.
, 2CH
Press to select a sound
field.
field.
A.F.D.
MOVIE
MUSIC
- TUNING +/–
Press to scan a station.
. TUNING MODE
Press to select the tuning
mode.
mode.
/ MEMORY/
ENTER
Press to store a station or
enter the selection when
selecting the settings.
enter the selection when
selecting the settings.
0 VIDEO 2 IN/
PORTABLE AV IN
jacks
jacks
Connect to a portable
audio/video component
such as a camcorder or
video game.
audio/video component
such as a camcorder or
video game.
1 AUTO CAL MIC
jack
Connects to the supplied
optimizer microphone for
the Auto Calibration
function.
optimizer microphone for
the Auto Calibration
function.
2 PHONES jack
Connects to headphones.
Receiver
This section is extracted
from instruction manual.
from instruction manual.