Sony STR-K7200 - Av Receiver Component User manual

SERVICE MANUAL
Sony Corporation
Audio Business Gourp
Published by Sony Techno Create Corporation
STR-K7200
SPECIFICATIONS
MULTI CHANNELAV RECEIVER
9-887-947-01
2008B05-1
© 2008.02
US Model
Ver. 1.0 2008.02
• 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 (HDMITM) 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.
“BRAVIA” and are trademarks of Sony Corporation.
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.
Amplifier section
Power Output1)
Stereo mode (rated)
(6 ohms 1 kHz, THD 1%)
90 W + 90 W
Surround mode (reference)
(6 ohms 1 kHz, THD 10%)
RMS Output2)
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.
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 kHz3)
With 9-kHz tuning scale:
531 – 1,710 kHz3)
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.
Video section
Inputs/Outputs
Video: 1 Vp-p, 75 ohms
COMPONENT VIDEO:
Y: 1 Vp-p, 75 ohms
PB/CB: 0.7 Vp-p, 75 ohms
PR/CR: 0.7 Vp-p, 75 ohms
80 MHz HD Pass Through
– Continued on next page –

STR-K7200
2
Design and specifications are subject to
change without notice.
SAFETY-RELATED COMPONET WARNING!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH MARK 0ON 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 120 V AC, 60 Hz
Power output (DIGITAL MEDIA PORT)
DC OUT 5 V, 0.7A MAX
Power consumption 170 W
Power consumption (during standby mode)
0.3 W (when “CONTROL
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
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.
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. Acommercial 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-operatedAC 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 VAC range are suitable. (See
Fig. A)
Fig. A. Using an AC voltmeter to check AC leakage.
1.5 kΩ0.15 μFAC
voltmeter
(0.75 V)
To Exposed Metal
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
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 - DIGITALAB Board (1/5) -.......... 25
6-11. Schematic Diagram - DIGITALAB Board (2/5) -.......... 26
6-12. Schematic Diagram - DIGITALAB Board (3/5) -.......... 27
6-13. Schematic Diagram - DIGITALAB Board (4/5) -.......... 28
6-14. Schematic Diagram - DIGITALAB Board (5/5) -.......... 29
6-15. Printed Wiring Board
- DIGITALAB Board (Component Side) -..................... 30
6-16. Printed Wiring Board
- DIGITALAB Board (Conductor Side) - ...................... 31
6-17. Printed Wiring Board - XM Board -............................... 32
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
7. EXPLODED VIEWS
7-1. Front Panel Section......................................................... 65
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
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
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.
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.
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.

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
RTRERG RB


RHRIRK
Name Function
" /
(on/standby) Press toturnthereceiveron or off.
#SPEAKERS
(ON/OFF) Press to turn the speaker system on or off.
$Display The current status of the
selectedcomponentoralist
of selectable items appears
here.
%Remote sensor Receives signals from
remote commander.
&DISPLAY Press to select information
displayed on the display.
'INPUT MODE Press to select the input
mode when the same
componentsareconnected
to both digital and analog
jacks.
(MASTER
VOLUME Turn to adjust the volume level of all speakers at the
same time.
)MUTING Press to turn off the sound
temporarily.
PressMUTINGagainto
restore the sound.
*AUTO CAL Press to activate the Auto
Calibration function.
Name Function
+INPUT
SELECTOR Turn to select the input source to play back.
,2CH Press to select a sound
field.
A.F.D.
MOVIE
MUSIC
-TUNING +/– Press to scan a station.
.TUNING MODE Press to select the tuning
mode.
/MEMORY/
ENTER Press to store a station or enter the selection when
selecting the settings.
0VIDEO 2 IN/
PORTABLEAVIN
jacks
Connect to a portable
audio/video component
such as a camcorder or
video game.
1AUTO CAL MIC
jack Connects to the supplied optimizer microphone for
the Auto Calibration
function.
2PHONES jack Connects to headphones.
Receiver
Thia section is extracted from
instruction manual.

STR-K7200
5
About the indicators on the display
MEMORY
LCR
SL
S SR
SW
LFE D.RANGE
MONO
ST
COAX
HDMI
D
 DTSOPT
PLII CAT

PL

    
TRGR RE RRB
Name Function
"SW Lights up when the audio signal
is output from the SUB
WOOFER jack.
#LFE Lights up when the disc being
played back contains an LFE
(Low Frequency Effect)
channel and the LFE channel
signal is actually being
reproduced.
$DLights up when the receiver is
decoding Dolby Digital signals.
Note
When playing a Dolby Digital
formatdisc,besurethatyou
have made digital connections
and that INPUT MODE is set to
“AUTO”.
%PL/
PLII “PL”lightsupwhenthe receiver applies Pro Logic
processing to 2 channel signals
in order to output the center and
surround channel signals.
“PLII” lights up when the
ProLogicIIMovieorMusic
decoder is activated.
&OPT Lights up when INPUT MODE
is set to “AUTO” and the source
signal is a digital signal being
input through the OPTICAL
jack.
Name Function
*Tuner
indicators Lights up when using the receiver to tune in radio stations,
etc.
+Preset
station
indicators
Lights up when using the
receiver to tune in radio stations
you have preset. For details on
presetting radio stations, see.
,D.RANGE Lights up when dynamic range
compression is activated.
-COAX Lights up when INPUT MODE
isset to “AUTO” and the source
signal is a digital signal being
input through the COAXIAL
jack.
.HDMI Lights up when the receiver
recognizes a component
connected via an HDMI IN jack.
/Playback
channel
indicators
L
R
C
SL
SR
S
The letters (L, C, R, etc.)
indicate the channels being
played back. The boxes around
the letters vary to show how the
receiver downmixes the source
sound.
Front Left
Front Right
Center (monaural)
Surround Left
Surround Right
Surround (monaural or the
surround components obtained
by Pro Logic processing)
Example:
Recording format (Front/
Surround): 3/2.1
Sound Field: A.F.D. AUTO
LCR
SL SR
SW
'DTS Lights up when the receiver is
decoding DTS signals.
Note
When playing a DTS format
disc, be surethat you have made
digital connections and that
INPUT MODE is set to
“AUTO”.
(CAT Lights up when category mode
is set to “ONE CAT” during
XM Radio operation.
)MEMORY Lights up when a memory
function, such as Preset
Memory, etc., is activated.

STR-K7200
6
Rear panel
 
 
AM
HDMI
XM
SAT IN DVD IN BD IN OUT
SA-CD / CD / CD-R
OUT IN IN
L
R
Y
P
B /
C
B
P R /
C
R
DIGITAL
(ASSIGNABLE)
DMPORT
OPTICAL
OPTICAL
SAT
IN
DVD
IN
COAXIAL
ANTENNA
IN
TV
TV
SUB WOOFER
AUDIO
IN
VIDEO
IN
SAT
MONITOR
COMPONENT VIDEO
AUDIO
IN
VIDEO
IN
AUDIO
IN
VIDEO
IN
DVD
AUDIO
OUT AUDIO OUT
VIDEO
OUT VIDEO OUT
SAT IN DVD IN VIDEO 1 IN MONITOR OUT
VIDEO 1
DC5V
0.7A MAX
SURROUND CENTER
LR
FRONT
L
R
SPEAKERS
"DIGITAL INPUT/OUTPUT section
OPTICAL
IN jacks Connects to a DVD player, etc. The
COAXIAL jack
provides a better
sound quality.
COAXIAL IN
jack
HDMI IN/
OUT* jacks Connects to a DVD player, Blu-ray disc
player, etc. The
image is output to a
TV or a projector
while the sound can
be output from a TV
or/and speakers
connected to this
receiver.
#ANTENNA section
FM
ANTENNA
jack
Connects to the
supplied FM wire
antenna.
AM
ANTENNA
terminals
Connects to the
supplied AM loop
antenna.
XM terminal Connects to the XM
Mini-Tuner and
Home Dock (not
supplied).
$COMPONENT VIDEO INPUT/
OUTPUT section
Y,PB/CB,PR/CR
IN/OUT* jacks Connects to a DVD player, TV,
satellite tuner, etc.
You can enjoy high
quality image.
%SPEAKERS section
Connects to the
supplied speakers.
&AUDIO INPUT/OUTPUT section
AUDIO IN/
OUT jack Connects to a Super Audio CD
player, etc.
AUDIO OUT
jack Connects to the
supplied sub
woofer.
Green
(Y)
Blue
(PB/CB)
Red
(PR/CR)
White (L)
Red (R)
Black
* You can watch the selected input image when you
connect the HDMI OUT or MONITOR OUT jack
to a TV.
'VIDEO/AUDIO INPUT/OUTPUT
section
AUDIO IN/
OUT jacks Connects to a VCR, DVD player,
etc.
VIDEO IN/
OUT* jacks
(DMPORT
Connects to a
DIGITAL MEDIA
PORT adapter.
White (L)
Red (R)
Yellow

STR-K7200
7
You can use the supplied RM-AAU021
Remote Commander to operate the receiver
and to control the Sony audio/video
components that the remote is assigned to
operate.
Remote commander
123
46
78
0/10 ENTER
9
SYSTEM STANDBY
TV INPUT
SLEEP DMPORT
VIDEO 1 VIDEO 2 BD DVD
2CH A.F.D.
RETURN/EXIT
TV CH –
PRESET – TV CH + PRESET +
TUNING –
TV
TUNING +
FM MODE
MOVIE MUSIC
AMP MENU
CLEAR
DISPLAY MUTING
TV VOL
MASTER VOL
DVD/BD
MENU
AUTO CAL
D.TUNING
D.SKIP
THEATER
SAT TV SA-CD/CD TUNER


).N
9Y



5
>10
REPLAY ADVANCE
– CATEGORY +
CATEGORY MODE
MEMORY
0
RH
RK
RL
RI
RM
X
XB
RE







R

RT
RB

RG
MENU/HOME
TOOLS/
OPTIONS
TV

AV

Name Function
"TV /
(on/standby) Press TV /and TV (.)at the same time to turn the TV
on or off.
AV /
(on/standby) Presstoturnonoroffthe Sonyaudio/videocomponents
that the remote is assigned to
operate.
If you press /(#)atthe
same time, it will turn off the
receiver and other Sony
components (SYSTEM
STANDBY).
Note
The function of the AV /
switch changes automatically
each time you press the input
buttons ($).
# /
(on/standby) Press to turn the receiver on or off.
To turn off all Sony
components, press /and
AV /(")atthesametime
(SYSTEM STANDBY).
Name Function
'DVD/BD
MENU Press to display the menu of the DVD or Blu-ray disc on
the TV screen.Then, use 7,W,
#,Cand (1) to perform
menu operations.
AUTO CAL Press to activate the Auto
Calibration function.
(D.TUNING Press to enter direct tuning
mode.
D.SKIP Press to skip a disc when
using a multi-disc changer.
)AMP MENU Press to display the menu of
the receiver. Then, use 7,W,
#,Cand (1) to perform
menu operations.
*ENTER Press to enter the value after
selecting a channel, disc or
track using the numeric
buttons of the TV, VCR or
satellite tuner.
MEMORY Presstostoreastation.
+MUTING Press to turn off the sound
temporarily.
Press MUTING again to
restore the sound.
Press MUTING and TV (.)
at the same time to activate
the TV’s muting function.
,TV VOL
+a)/– Press TV VOL +/– and TV
(.) at the same time toadjust
the volume level of the TV.
MASTER
VOL +a)/– Press to adjust the volume
level of all speakers at the
same time.
%2CH Press to select a sound field.
A.F.D.
MOVIE
MUSIC
&THEATER Press to enjoy optimal image
suited for movies and to
output the sound from the
speakers connected to this
receiver automatically.
Note
This button will only function
if your TV is compatible with
Theater Mode.
Refer to the operating
instructions supplied with the
TV for details.
$Input buttons Press one of the buttons to
select the component you
want to use. When you press
any of the input buttons, the
receiver turns on. The buttons
are factory assigned to control
Sony components as follows.
You can change the button
assignments following the
steps in “Changing button
assignments”.
Button Assigned Sony
component
DMPORT DIGITAL MEDIA
PORT adapter
VIDEO 1 VCR (VTR mode 3)
VIDEO 2 VCR (VTR mode 2)
BD Blu-ray disc player
DVD DVD player
SAT Digital Satellite
Receiver
TV TV
SA-CD/CD Super Audio CD/
CD player
TUNER Built-in tuner

STR-K7200
8
Name Function
-/b) PresstoskipatrackoftheCD
player, DVD player or Blu-ray
disc player.
REPLAY /
ADVANCE Press to replay the previous scene or fast forward the
current scene of the VCR,
DVD player or Blu-ray disc
player.
N/.b) Press to
– search tracks in the forward/
reverse direction of theDVD
player.
– start fast forward/rewind of
the VCR, CD player or Blu-
ray disc player.
)a)b) Press to start playback of the
VCR,CD player,DVDplayer,
or Blu-ray disc player.
9b) Press to pause playback or
recording of the VCR, CD
player, DVD player or Blu-ray
disc player. (Also starts
recording with components in
recording standby.)
Yb) Presstostopplaybackofthe
VCR, CD player, DVD player
or Blu-ray disc player.
TV CH +/– PressTVCH+/–andTV(.)
at the same time to select
preset TV channels.
CATEGORY
+/– Press to select a category for XM Radio.
PRESET +/– Press to select
– preset stations.
– preset channels of the VCR
or satellite tuner.
TUNING +/– Press to scan a station.
CATEGORY
MODE Press to select the category mode for XM Radio.
FM MODE Press to select the FM
monaural or stereo reception.


.TV Press TV and the button with
orange printing at the same
time to enable TV operation.
/MENU/HOME Press to display the menu of
the VCR, DVD player,
satellite tuner or Blu-ray disc
player on the TV screen.
Press MENU/HOME and TV
(.) at the same time to
display the TV’s menu.
Then, use 7,W,#,Cand
(1) to perform menu
operations.
a)The number 5, MASTER VOL +, TV VOL +, and
)buttons have tactile dots. Use the tactile dots
as references when operating the receiver.
b)This button is also available for DIGITAL MEDIA
PORT adapter operation. For details on the
function of the button, refer to the operating
instructions supplied with the DIGITAL MEDIA
PORT adapter.
Notes
•Some functions explained in this section may not
work depending on the model.
•The above explanation is intended to serve as an
example only. Therefore, depending on the
component, the above operation may not be
possible or may operate differently than described.
3TOOLS/
OPTIONS Press to display and select the options of the DVD player or
Blu-ray disc player.
Press TOOLS/OPTIONS and
TV (.) at the same time to
display the options applicable
to the Sony TV.
4[Press to input the decimal
point for channel numbers of
the Digital CATV terminal.
Press [and TV (.)atthe
sametimeto inputthedecimal
point for the channel numbers
of the TV.
>10 Press to select track numbers
over 10 of the CD player.
CLEAR Press to clear a mistake when
you press the incorrect
numeric button.
5Numeric
buttons
(number 5a))
Press to
– preset/tune to preset
stations.
– select track numbers of the
CD player, DVD player or
Blu-ray disc player. Press
0/10 to select track number
10.
– select channel numbers of
the VCR or satellite tuner.
Press the numeric buttons and
TV (.) at the same time to
select the TV channels.
6TV INPUT PressTVINPUTandTV(.)
at the same time to select the
inputsignal(TVinputor
video input).
SLEEP Press to activate the Sleep
Timer function and the
duration which the receiver
turns off automatically.
1
7/W/#/C
After pressing DVD/BD
MENU ('), AMP MENU
()), or MENU/HOME (/
),
press 7,W,#or Cto selectthe
settings. Then, press to
enter the selection if you have
pressed DVD/BD MENU or
MENU/HOME previously.
Press also to enter the
selection of the receiver,
VCR, satellite tuner, CD
player, DVD player or Blu-
raydiscplayer.
2DISPLAY Press to select information
displayed on the TV screen of
the VCR, satellite tuner, CD
player, DVD player or Blu-
raydiscplayer.
Press DISPLAY and TV (.)
at the same time to display
TV’s information on the TV
screen.
0RETURN/
EXIT 0Press to
– return to the previous menu.
– exit the menu while the
menu or on-screen guide of
the VCR, DVD player,
satellite tuner or Blu-ray
disc player is displayed on
the TV screen.
PressRETURN/EXITandTV
(.) at the same time to return
to the previous menu or exit
the TV’s menu while the
menu is displayed on the TV
screen.
Name Function Name Function

STR-K7200
9
SECTION 3
DISASSEMBLY
• This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
Note: Follow the disassembly procedure in the numerical order given.
3-2. CASE
3-2. CASE
(Page 9)
3-3. BACK PANEL BLOCK
(Page 10)
3-4. FRONT PANEL BLOCK
(Page 10) 3-5. MAIN BLOCK (Page 11)
3-6. MAIN BOARD
(Page 11)
SET
two screws
(BVTP3
×8)
case
two screws
(BVST4
×8)
two screws
(BVST4
×8)



STR-K7200
10
3-3. BACK PANEL BLOCK
3-4. FRONT PANEL BLOCK
R screw
(BVTP3
×8)
RB screw
(BVTP3
×8)
RT five screws
(BVTP3
×8)
RT nine screws
(BVTP3
×8)
clamp
RH back panel block
wire (flat type) (17 core)
(CNS510)
connector
(CN102)
connector
(CNP103)
connector
(CN3509)
connector
(CNP912)
RG connector
(CNP911)
three connectors
(CNP504, CNP505, CNP512)
three connectors
(CNP902, CNP910, CNP913)
two connectors
(CNP203, CNP204)
RE two connectors
(CNS501, CNS502)
five screws
(BVTP3
×8)
three connectors
(CNP430, CNP500, CNP930)
three leads (with connector)
(TP202, TP790, TP2000)
connector
(CN790)
claw
claw
front panel section

STR-K7200
11
3-5. MAIN BLOCK
3-6. MAIN BOARD
two screws
(BV3)
main block
three screws
(BV3)
three connectors
(CNP430, CNP500, CNP930)
two connectors
(CNP921, CNP940)
connector
(CN790)
two screws
(BVTP3
×8)
R MAIN board
heatsink assy
Remove the
thirty solders.
ten screws
(transistor)
five transistor MN2488-OPY-MK
(Q653, Q703, Q753, Q803, Q853)
five transistor MP1620-OPY-MK
(Q654, Q704, Q754, Q804, Q854)
screw
(BV3)
wire route board
ten sheets

STR-K7200
12
SECTION 4
TEST MODE
TUNER AM STEP CHANGE (9 kHz/10 kHz) MODE
The AM tuning interval can be changed over 9 kHz or 10 kHz.
Procedure:
1. Press the [?/1] button to turn on the main power.
2. Turn the [INPUT SELECTOR] dial to select the “AM”.
3. Press the [?/1] button to turn off the main power.
4. While pressing the [TUNING MODE] button, press the [?/1]
button to turn on the main power.
5. The AM turning interval changed over 9 kHz or 10 kHz.
FL CHECK MODE
All fluorescent segments are tested. When this test is activated, all
segments turn on at the same time, then each segment turns on one
after another.
Procedure:
1. When pressing the [TUNING MODE] and [DISPLAY] but-
tons, press the [?/1] button to turn on the main power.
2. All segments turn on.
3. Turn the [INPUT SELECTOR] dial.
4. Test pattern 1 turn on.
5. Turn the [INPUT SELECTOR] dial once again.
6. Test pattern 2 turn on.
7. Turn the [INPUT SELECTOR] dial once again. All segments
turn off.
8. Every turning of the [INPUT SELECTOR] dial turns on each
segment one after another on the same order.
S.F. CLEAR MODE
The preset sound filed is cleared when this mode is activated. Use
this mode before returning the product to clients upon completion
of repair.
Procedure:
1. While pressing the [2CH] button, press the [?/1] button to turn
on the main power.
2. The message “S.F CLR.” appears and initialization is per-
formed.
VERSION CHECK MODE
When this mode is used the model, the destination and the software
version number are displayed.
Procedure:
1. While pressing the [SPEAKERS (ON/OFF)] and [DISPLAY] but-
tons, press the [?/1] button to turn on the main power.
2. The model, the distination and the software version number
appear.
KEY CHECK MODE
This mode is used to check the key.
Procedure:
1. While pressing the [SPEAKERS (ON/OFF)] and [2CH] but-
tons, press the [?/1] button to turn on the main power.
2. The message “REST 13” appears.
3. Every pressing of any button other than the [?/1] button counts
down the buttons. The buttons which are already counted once
are not counted again.
4. When all buttons are pressed, the message “REST 00” ap-
pears.
SWAP ALL MODE
When this mode is used, output the audio signal of front L/R chan-
nel to all channel.
Procedure:
1. While pressing the [MEMORY/ENTER)] and [DISPLAY]
buttons, press the [?/1] button to turn on the main power.
2. The message “DSP TEST” appears.
3. Press the [AMPMENU] button on the remote commander, and
the message “9_DSPTST” appears.
4. Press the [b] button on the remote commander to enter the
DSP test mode menu.
5. Press the [v] button on the remote commander twice to enter
the swap mode, and the message “SWP.AUTO” appears.
6. Press the [b] button on the remote commander twice to select
“SWP.[]ALL”.
SHIPMENT MODE
All preset contents are cleared when this mode is activated. Use
this mode before returning the product to clients upon completion
of repair.
Procedure:
1. While pressing the [SPEAKERS (ON/OFF)] and [MUSIC] but-
tons, press the [?/1] button to turn on the main power.
2. The message “CLEARING” appears.
DCAC FACTORY TEST MODE
DCAC Factory Test mode have two stages:
1. DCAC DSP Data Line Checking
2. DCAC board Checking
Factory Test System Setup
1. When power off :
While pressing the [MEMORY/ENTER] and [MOVIE] but-
tons, press the [?/1] button to turn on the main power .
“DCAC FTM” appears.
Afterward, press the [TUNING MODE] to start DCAC factory
test mode.
SPK Front Left
DCAC MIC
Receiver
DSP Data Line
Check
Start Pass Pass
Auto Cal Mic
Check END
MEMORY
LCR
SL
S SR
SB SBRSBL
SW
LFE
SP A
SP B
CAT
NEO:6 SAT D.RANGE
RDS ST
MONO
DTS-ES 96 / 24
HDMI COAX
D EX
 OPT 
PL II x

PL
dB
k Hz
mft.
MHz
L R
S
LFE
SP B NEO:6 SAT D.RANGE
RDS ST
MONO
DTS-ES
HDMI COAX
D EX

PL II x
k
m
MHz
MEMORY
C
SL SR
SB SBRSBL
SW
CAT
DTS
D

PL
dB
Hz
ft.
ST

STR-K7200
13
1. DCAC DSP Data Line Checking
After press the [TUNING MODE] button, DCAC Factory test
mode will start, below display will show:
“DCAC x” x = 1, 2, 3, 4
If there is error happen, below display will show:
“ERR SD0x” x = 1 →D1501 or R1530 problem
x = 2 →D1502 problem
x = 3 →D1503 problem
x = 4 →D1504 problem
2. DCAC board Checking
Connect front left speaker of the receiver and AUTO CAL micro-
phone. Turn [MASTER VOLUME] jog, there will be test tone
sound output from front left speaker, and the display will change
accordingly.
“AD - xxx” xxx = 0 to 255 (depends on loudness of test tone)
RE-BOX CLASSIFICATION TEST MODE
Procedure:
1. While pressing the [MEMORY/ENTER] and [INPUTMODE]
buttons, press the [?/1] button to turn on the main power.
2. The message “R.BOX[][][]XX” appears.
XX: times set powered on
VACS CONTROL TEST MODE
The VACS feature of the amplifier is turned off purposely.
Procedure:
1. While pressing the [MEMORY/ENTER] and [2CH] buttons,
press the [?/1] button to turn on the main power.
2. The message “VACS OFF” appears.

STR-K7200
14
SECTION 5
ELECTRICAL CHECK
FM AUTO STOP CHECK
signal
generator set
Procedure:
1. Turn on the set.
2. Input the following signal from signal generator to FM antenna
input directly.
Carrier frequency: A = 87.5 MHz, B = 98 MHz, C = 108 MHz
Deviation : 75 kHz
Modulation : 1 kHz
ANT input : 1 kHz
Note: Use 75 ohm coaxial cable to connect signal generator and the set.
You cannot use video cable for checking.
Use signal generator whose output impedance is 75 ohm.
3. Set to FM tuner function and scan the input FM signal with
automatic scanning.
4. Confirm that input frequency of A, B and C are detected and
automatic scanning stops.
When the station signal is received in good condition, automatic
scanning stops.

STR-K7200
STR-K7200
1515
6-1. BLOCK DIAGRAM - MAIN Section -
SECTION 6
DIAGRAMS
EEPROM
IC1131
SYSTEM CONTROLLER
IC1010 (1/4)
DIGITALOPTICAL
RECEIVER
IC1352
DIR_DO
DIR_DI
DIR_CLK
DIR_CE(LAT)
DIR ERROR
DIR_XMODE (RESET)
DIR_XSTATE
DIR DATA0
63
DATA0, BCK
LRCK, CKOUT
DOUT
7
SCKI 12
BCK
8LRCK
13 VINL
14 VINR
6
XMCK 20
DATAO 16
BCK 14
LRCK 15
CKOUT 13
AUDIO 24
46
TV OPT
IN
DIGITALOPTICAL
RECEIVER
IC1351
OPT SAT
IN
SCHMITT
TRIGGER
IC1303
DIGITALAUDIO
INTERFACE RECEIVER
IC1301
DIN2
J1301
5
COAX IN
DVD
DIGITAL
A/D CONVERTER
IC1401
21
22
X1301
12.288MHz
XOUT
XIN
DIRCKST
39
D1301
57
58
X1
X0
98 EEPROM DATA
78 EEPROM CLK
X1101
12.5MHz
A
•SIGNALPATH
: AUDIO (ANALOG)
: AUDIO (DIGITAL)
•R-ch is omitted due to same as L-ch.
DATASELECTOR
IC1302
1C2
5
1C3
3
1C1
6
DIN0
3
1Y 7
2
B
CKSEL0 DOUT DI CLK CE XMODE XSTATE ERROR
14
A
TC74HC153_A
36
TC74HC135_B
35
CEC DATA
SWITCH
Q1103 – 1106
HDMI_TX
HDMI_RX
HDMI RESET
104
103
103
29
CEC OUT
CEC IN 88
AUDIO
A_AUDIO
D_AUDIO
B
N
M
ERR C
CEC D
48 47 45 46 492938
RESET, TX, RX E
JSPDIF
R-CH
35 36 38 37 48 17 34
VIDEO 1 IN
VIDEO 1
VIDEO IN
VIDEO 2 IN/
PORTABLEAV IN
VIDEO
DVD
VIDEO IN
SAT
VIDEO IN
DMPORT_VIDEO 17
J1302 (1/2)
J210 (1/2)
J211 (1/2)
J298 (1/2)
DMPORT
VIDEO 1
VIDEO OUT
MONITOR
VIDEO OUT
J210 (2/2)
J220 (1/2)
J221
J211 (2/2)
VIDEOAMP
IC210
VIN3
7
VIN1
13
VIN5
3
VIN4
5
VIN2
9
VOUT1 1
VOUT2 15
SW1
14
SW2
10
SW3
4
SW4
6
SW5
2
34
V_SW1
33
V_SW2
32
V_SW3
31
V_SW4
D211
D210
: VIDEO
COMPONENT
VIDEO
VIDEOAMP
IC220
CH1 IN1
1
CH2 IN1
8
CH3 IN1
17
CH1 IN2
3
CH2 IN2
14
CH3 IN2
15
CH1 IN3
5
CH2 IN3
12
CH3 IN3
13
SW1
2
SW2
4
PS
23
35
COMP_S1
36
COMP_S2
37
PS(V-MUTE)
PB/CB
Y
PR/CR
DVD IN PB/CB
Y
PR/CR
SAT IN PB/CB
Y
PR/CR
J220 (2/2)
CH1 OUT 24
CH2 OUT 22
CH3 OUT 20
PB/CB
Y
PR/CR
COMPONENT
VIDEO
MONITOR OUT
(Page 16) (Page 17)
(Page 17)
(Page 18)
(Page 17)
(Page 17)
(Page 16)
(Page 16)

STR-K7200
STR-K7200
1616
6-2. BLOCK DIAGRAM - HDMI Section -
• SIGNAL PATH
: AUDIO (DIGITAL)
: VIDEO HDMI CONTROLLER
IC3519
CN3501
HDMI
SAT IN
A32
52 B32
51
7
9
A33
55 B33
54
4
6
A34
58 B34
57
1
3
A31
49 B31
48
10
DATA0+
DATA0–
DATA1+
DATA1–
DATA2+
DATA2–
CLOCK+
CLOCK–
SDA(5V)
SCL(5V)
+5V POWER
HOT PLUG DET
18
CEC 13
12
16
15
HDMI
INPUT
SELECTOR
IC3503
55
P5V_SELA
56
P5V_SELB
SDA3
45
19 HPD3
44
SCL3
46
CN3502
HDMI
DVD IN
A22
71 B22
70
7
9
A23
74 B23
73
4
6
A24
77 B24
76
1
3
A21
68 B21
67
10
DATA0+
DATA0–
DATA1+
DATA1–
DATA2+
DATA2–
CLOCK+
CLOCK–
SDA(5V)
SCL(5V)
+5V POWER
HOT PLUG DET
18
CEC 13
12
16
15 SDA2
63
19 HPD2
62
SCL2
64
CN3503
HDMI
VIDEO 2/
BD IN
A12
9B12
8
7
9
A13
12 B13
11
4
6
A14
15 B14
14
1
3
A11
6B11
5
10
DATA0+
DATA0–
DATA1+
DATA1–
DATA2+
DATA2–
CLOCK+
CLOCK–
SDA(5V)
SCL(5V)
+5V POWER
HOT PLUG DET
18
CEC 13
12
16
15 SDA1
2
19 HPD1
80
SCL1
3
RX_HPD1
HDMI RECEIVER
IC3511
HDMI
TRANSCEIVER
IC3513
Y1 34
Z1 35 51
50
Y2 31
Z2 32 55
54
Y3 28
Z3 29 59
58
Y4 25
Z4 26 63
RXC+
RXC–
RX0+
RX0–
RX1+
RX1–
RX2+
RX2–
DSDA
DSCL
62
41
PWR5V
44
42
CSDA
CSCL
39
40
SCL_SINK 38
HPD_SINK 40
xOE 42
SDA_SINK 39
S1 21
S2 22
S3 23
LEVEL
SHIFT
IC3501
(1/2)
LEVELSHIFT
IC3507
S [1]
S [2]
S [3]
SIGNALSELECTOR
IC3504
2Y2
22Y3
42Y1
53
2-COM
10 9
AB
21 51 52 53
S [1] S [2] S [3]
TMDS_S1 TMDS_S2 TMDS_S3
DATASELECTOR
IC3521 EEPROM IC3509
2Y1
52Y0
1
1Y1
14 1Y0
12
3
2-COM
13
1-COM
5SDA
6SCL
EEPROM1
10
A7
WP
35
TMDS_OEB
54
RX_RST
19
MUTE
65
RX_INT
20
TX_INT
43
TX_RST
42
CSCL
27
CSDA
28
124 – 121,117 – 114,
111 – 108, 105 – 99,
96 – 92
QE0 – QE23
79 – 75, 70 – 67 65 – 61, 58 – 49
D0 – D23
ODCK 119
HSYNC 128
VSYNC 1
DE 127
SPDIF 70
SD0 – SD3 4
24
MCK 79
SCK 76
WS 75
MUTE 67
RESET 89
INT 91
IDCK
66 HSYNC
1VSYNC
2DE
80
74 – 71
SPDIF
5
SD0 – SD3
MCK
6SCK
12 WS
11
10 – 7
TX0+ 30
TX0– 29 7
9
TX1+ 33
TX1– 32 4
6
TX2+ 36
TX2– 35 1
3
TXC+ 27
TXC– 26 10
HPD
DATA0+
DATA0–
DATA1+
DATA1–
DATA2+
DATA2–
CLOCK+
CLOCK–
SDA(5V)
SCL(5V)
HOT PLUG DET
CEC
18 19
12
16
15
13
DSDA 19
DSCL 20
INT 17
RESET 42
CSDA 44
CSCL 43
LEVEL
SHIFT
IC3501 (2/2)
LEVEL
SHIFT
Q3504
CN3504
HDMI
OUT
SPDIF
LRCK MCK BCK
SD0 – SD3
85
84
XTALIN
XTALOUT
X3501
28.322MHz
10RESET RESET, TX, RX
D
13
11
XIN
XOUT
X3502
10MHz
B+ SWITCH
Q3505-3507
F
G
E
33TX 34RX
CEC
MUTE
SD0-3, MCK,
BCK, LRCK
J
41TX_5VPWR K
5VPWR
(Page 15)
(Page 17)
(Page 15)
(Page 17)
(Page 15)
(Page 19)

STR-K7200
STR-K7200
1717
6-3. BLOCK DIAGRAM - DSP/XM Section -
A
M
DATA0, BCK, LRCK, CKOUT
GMUTE
LRCK
DATA0
SD1
INPUT SELECTOR
IC1008
2A0
3B0
CKOUT
5A1
6B1
SD0
BCK
SD2
SD3
11 A2
LRCK
BCK
10 B2
MCK
13 B3
Y0 4
Y1 7
Y2 9
S
1
Y3 12
14 A3
• SIGNAL PATH
D_AUDIO
F
DATASELECTOR
IC1017
1A
2B
Y5
A/B
6
C
HDMI_ERR
30
DSP_SELECT
22
SYSTEM CONTROLLER
IC1010 (2/4)
D FLIP-FLOP
IC1014
78 DPSIA
79 DPSIB
88 DPLRCK
INVERTER
IC1016
HDMI_RSRATE
50
94 DPFSCK
89 DPBCK
16 FLAG1
82 DPSIE
81 DPSID
80 DPSIC
DSP SPDIF(LAT)
65
DSP RESET
64
DSPINT
81
XSPIDS
XRESET
FLAG0
DSP
IC1009
D/ACONVERTER
IC1452
2MCK
3BCK
4 LRCK
9 DIN3
7 DIN1
8 DIN2
10 DIN4
VO1L 21
VO1R 22
VO2L 23
VO2R 24
VO3L 25
VO3R 26
DPDVLRCK
64
DPDVBCK
DPSOA
DPSOB
DPSOC
DPSOD
87
65
66
67
86
DSP SPICLK
: AUDIO (ANALOG)
: AUDIO (DIGITAL)
143
142
X1302
25MHz
XTAL
CLKIN
SD0-3, MCK, BCK, LRCK
97 XNONAUDIO
BAUDIO
ERR
115 DCAC_IN
122 121
15
75
DSP MOSI
74
DSP MISO
73
SPICLK
MOSI
MISO
125 121 126
DAC_ATC
26
DCAC_DSP_IN
82
DAC_DI
4
DACMUTE
27
11 13 14
M/I2S
MD/DM
MUTE
12
MC/IWL
LINEAMP
IC1404
LINEAMP
IC1405
LINEAMP
IC1406
5
SRCXIN
3
SCTXOUT
11
RESET∗
19
18 COMRXM
COMRXP
LINEAMP
IC104
XM RECEIVER
IC102
D/ACONVERTER
IC105
J101
XM
+D
-D 3
2
22
23 COMTXM
COMTXP
28
26
OSCIN
OSCOUT
X101
45.1584MHz
15
ML(MS)
1
2BCK
DATA∗
16
3SCK
LRCK
39
37
I2SSCLK
I2SDATA
7
VOUTL 8
VOUTR R-CH
XML
43
41
I2SOCLK
I2SLRCLK
14
MC 13
MD (MDI)
XMRESET
94
XMIXMO
92
XMMOXI
93
XMDACMD1
3
XMDACMC
1
XMDACMS
2
R-CH
R-CH
SL L, C, SW, SL
C
L
SW
R
P
•R-ch is omitted due to same as L-ch.
AUTO
CALMIC
J2000 MICAMP
IC2000
RESET SIGNAL
BUFFER
IC1005
62RESET_TRG
55INIT
RESET SIGNAL
GENERATOR
IC1007
RESET
SWITCH
IC1006
STBY +3.3V
D1504
(Page 15)
(Page 15)
(Page 16)
(Page 15)
(Page 15)
(Page 16)
(Page 18)
(Page 18)

STR-K7200
STR-K7200
1818
SYSTEM CONTROLLER
IC1010 (3/4)
10
DATA
11
CLK
L CH
R CH
DO
DI
INL1 (TUNER_L)
63
VOL_CLK
10
VOL_DA
11
27
LOUT 76
RECL1 29
FM 75Ω
COAXIAL
72
69
26
DVD
AUDIO IN
ANTENNA
TUNER (FM/AM)
AM
INL2 (DMPORT_L)
61
L+
R+ 14
13
CN1302 (2/3)
R-CH
CLINK_RX
CLINK_TX 6
5
CN1302 (3/3)
INPUT SELECTOR,
ELECTRICALVOLUME
IC400
R-CH
FMANT
GND
AMANT
GND
CLOCK
CE
TUN_DO
TUNER DATA
TUNER CLK
TUN_LAT
INL9
47
INL7
51
TV IN
J401 (1/2)
SA-CD/CD
CD-R IN
L
R
L
R
R-CH
R-CH
INL12
41
INL11
43
J403
SAT
AUDIO IN
L
R
L
R
R-CH
R-CH
VIDEO 2 IN/
PORTABLEAV IN
AUDIO
INL5
55
INL15
34
SLIN
68
CIN
70
SWIN
71
LIN
72
J298 (2/2) L
R R-CH
BUFFER
IC3002
117
SD TUNE SD
100
CLINK_RX
99 CLINK_TX
DET 7
101
C_LINK_DET
•SIGNALPATH
: TUNER
: AUDIO (ANALOG)
•R-ch is omitted due to same as L-ch.
A_AUDIO N
DMPORT
DMPORT
PXML
VIDEO 1
AUDIO IN
INL13
38
J404 (1/2) L
R R-CH
FLOUT 14
P_DET Q
SL
L, C, SW, SL
C
L
SW
R
J401 (2/2)
L
R
SA-CD/CD
CD-R OUT
R-CH
RECL2 27 J404 (2/2)
L
R
VIDEO 1
AUDIO OUT
R-CH
+VOUT1 2
NF1 5
-VOUT1 3
LIMITER
Q701, 702
BOOSTER
Q703
BOOSTER
Q704
CURRENT
DETECT
Q711, 712
IN1
6
POWERAMP
IC700
AF POWER
PROTECT
Q720
RELAY
DRIVE
Q350
RELAY
DRIVE
Q375
PROTECTOR
68 16 17
VACS_CTRL
119
PROTECT
SWITCH
Q320, 321, 325
SLOUT 18
+VOUT1 2
NF1 5
-VOUT1 3
LIMITER
Q801, 802
BOOSTER
Q803
BOOSTER
Q804
CURRENT
DETECT
Q811, 812
IN1
6
POWERAMP
IC800
AF POWER
PROTECT
Q820
COUT 16
+VOUT2 12
NF2 9
-VOUT2 11
LIMITER
Q651, 652
BOOSTER
Q653
BOOSTER
Q654
CURRENT
DETECT
Q661, 662
IN2
8
POWERAMP
IC600
AF POWER
PROTECT
Q670
SWOUT 15
+
−
+
−
RELAY
DRIVE
Q301 RY301
RY355
RY360
RY350
RY375
RELAY
DRIVE
Q360
R-CH
R-CH
+
−
+
−
R-CH
RELAY
DRIVE
Q355
+
−
HP_DETECT
HP_RY
SW RY
C/SUR/SB
12 13
FRONTARY
14
D1112
D1111
D1108
D1107
J790
PHONES
TB601
L
R
FRONT
TB604
L
R
SURROUND
SPEAKERS
TB607
CENTER
J405
SUB WOOFER
AUDIO OUT
6-4. BLOCK DIAGRAM - AUDIO Section -
(Page 17)
(Page 17)
(Page 15)
(Page 19)

STR-K7200
STR-K7200
1919
(AC IN)
F901
B+
B-
POWER AMP -45V
FL-20V
TU +9V
VIDEO +5V
DSP +3.3V
DSP +1.2V
HDMI +3.3V
HDMI +1.8V
XM VCC (+5V)
XM +3.3V
HDMI +5V
FL+5V
DMPORT +5V
VIDEO -5V
A-7V
A+5V
A+7V
SYS +3.3V
9
POWER_RY
25FUSE_DETECT
7
86XMDPOWER
HDMI_REG_CTL
SYSTEM CONTROLLER
IC1010 (4/4)
71 FL_DATA
70 FL_CLK
69 FLLAT
FLUORESCENT
INDICATOR TUBE DRIVER
IC100
7
DIN 8
CLK 9
STB
FLUORESCENT
INDICATOR
TUBE
FL101
SEG1 – SEG16,
SEG17
14 – 29, 31
GRID1 – GRID11
42 – 32
84 SIRCS_IN
ROTARY
ENCODER
RV101
LEVELSHIFT
IC101
REMOTE CONTROL
RECEIVER
IC103
INPUT
SELECTOR
I/
S109 – 112, 115
85 POWER KEY
113
AD_KEY1
S101 – 108
114
AD_KEY2
90
89 INPUT ENCODER A
S100
INPUT ENCODER B
ROTARY
ENCODER
RV102
MASTER
VOLUME 80
79 VOL_JOG (2B)
VOL_JOG (2A)
Q
83STOP
97SUBT
P_DET
K5VPWR
SUB POWER
TRANSFORMER
T904
RELAY DRIVE
Q901
RECT
D950 – 953
RECT
D910 – 913
RECT
D921
AC OFF DETECT
Q990
RY901
D990, 991
+3.3V
REGULATOR
IC1904
+5V
REGULATOR
IC201
+9V
REGULATOR
IC1902
+4.1V
REGULATOR
IC4100
+3.3V
REGULATOR
IC3527
+1.8V
REGULATOR
IC3528
+1.2V
REGULATOR
IC1002
+3.3V
REGULATOR
IC3526
+3.3V
REGULATOR
IC1013
+6.3V
REGULATOR
IC4001
+7V
REGULATOR
IC350
-20V
REGULATOR
Q930
B- SWITCH
Q500, 501
+5V
REGULATOR
IC1001
+5V
REGULATOR
IC3516
+5V
REGULATOR
IC1031
+5V
REGULATOR
IC1012
+5.5V
REGULATOR
IC106
B+ SWITCH
Q105, 106
+5V
REGULATOR
IC107
+3.3V
REGULATOR
IC101
MAIN POWER
TRANSFORMER
T901
PROTECT DETECT
IC565
RECT
D4001, 4002
-5V
REGULATOR
IC202
-7V
REGULATOR
IC352
F4002
F4001
RECT
D955
B+ SWITCH
Q951, 955
6-5. BLOCK DIAGRAM - POWER SUPPLY Section -
(Page 16)
(Page 18)

STR-K7200
STR-K7200
2020
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ωand 1/4W or less unless otherwise
specified.
• f: internal component.
• 2: nonflammable resistor.
• 5: flusible resistor.
• C: panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
• A: B+ Line.
• B: B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : TUNER
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
J: AUDIO (DIGITAL)
F: AUDIO (ANALOG)
f: TUNER
E: VIDEO
For Printed Wiring Boards.
Note:
• X: Parts extracted from the component side.
• Y: Parts extracted from the conductor side.
• f: Internal component.
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor.
C
BThese are omitted. E
Q
CEBThese are omitted.
Caution:
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts on the parts face side seen from
the pattern face are indicated.
Parts on the pattern face side seen from
the parts face are indicated.
• Circuit Boards Location
Caution:
Pattern face side:
(Conductor Side)
Pattern face side:
(Component Side)
Parts on the pattern face side seen from
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated. Note: The components identified by mark 0or dotted
line with mark 0are critical for safety.
Replace only with part number specified.
DISPLAY board
VIDEO board
MAIN board
DIGITAL AB board
TUNER (FM/AM)
XM board
HDMI board
DCDC CONVERTER board
STANDBY board
POWER board
DCAC board
HEADPHONE board
VIDEO 2 board