HT-7000DH, STR-K7000 — Sony Audio Service Manual (repair manual)

Model
HT-7000DH STR-K7000
Pages
71
Size
7.16 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
ht-7000dh-str-k7000.pdf
Date

View Sony HT-7000DH / STR-K7000 Service Manual online

1
SERVICE MANUAL
US Model
STR-K7000
MULTI CHANNEL AV RECEIVER
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
0.7 % total harmonic distortion from 250
milliwatts to rated output.
Amplifier section
Power Output
 1)
(6 ohms 1 kHz, THD 10 %)
FRONT
 2)
:
140 W/ch
CENTER
 2)
:
140 W
SUR
 2)
:
140 W/ch
1) Measured under the following conditions:
Area code
Power requirements
US
120 V AC, 60 Hz
2) Depending on the sound field settings and the source,
there may be no sound output.
SPECIFICATIONS
Inputs (Analog)
MULTI CH IN,
Sensitivity: 800 mV
SA-CD/CD,
Impedance: 50 kohms
MD/TAPE, DVD,
VIDEO 1, 2, 3
Inputs (Digital)
DVD (Coaxial)
Sensitivity: —
Impedance: 75 kohms
VIDEO 1, 2
Sensitivity: —
(Optical)
Impedance: —
Outputs (Analog)
MD/TAPE (OUT),
Voltage: 800 mV
VIDEO 1 (AUDIO
Impedance: 10 kohms
OUT)
SUBWOOFER
Voltage: 2 V
Impedance: 1 kohms
Reproduction frequency range:
28 – 20,000 Hz
Tone
Gain levels
±6 dB, 1 dB step
Ver. 1.0  2006. 03
9-887-150-01
2006C04-1
© 2006. 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 Digital Theater Systems, Inc.
The XM name and related logos are registered
trademarks of XM Satellite Radio inc.
– Continued on next page –
• STR-K7000 is the multi
channel AV receiver
section in HT-7000DH.
2
STR-K7000
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 ?/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
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
General
Power requirements
Area code
Power requirements
US
120 V AC, 60 Hz
Power consumption
Area code
Power consumption
US
170 W
Power consumption (during standby mode)
0.2 W
Dimensions (w/h/d) (Approx.)
430 
× 157.5 × 316 mm
(16 
7/8
 
× 6 
2/8
 
× 12 
4/8
inches) including
projecting parts and
controls
Mass (Approx.)
8.0 kg (17 lb 11 oz)
Design and specifications 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  WHOSE
PART  NUMBERS  APPEAR  AS  SHOWN  IN  THIS  MANUAL  OR
IN  SUPPLEMENTS  PUBLISHED  BY  SONY.
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 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.
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)
Fig. A.  Using an AC voltmeter to check AC leakage.
3
STR-K7000
TABLE OF CONTENTS
1. GENERAL
Description and location of parts ............................................. 4
2. DISASSEMBLY
2-1.   Case ..................................................................................... 7
2-2.   Front Panel Section ............................................................. 8
2-3.   Back Panel Section .............................................................. 8
2-4.   DIGITAL Board .................................................................. 9
2-5.   MAIN Board Section .......................................................... 9
2-6.   STANDBY Board ............................................................. 10
3. TEST MODE
..................................................................... 11
4. DIAGRAMS
4-1.   Circuit Boards Location .................................................... 12
4-2.   Block Diagram – Tuner/Audio Section – .......................... 14
4-3.   Block Diagram – Digital Section – ................................... 15
4-4.   Block Diagram – Video Section – ..................................... 16
4-5.   Block Diagram – XM Section – ........................................ 17
4-6.   Block Diagram – Key/Display Section – .......................... 18
4-7.   Block Diagram – Power Section – .................................... 19
4-8.   Printed Wiring Boards – Main Section – .......................... 20
4-9.   Schematic Diagram – Main Section (1/3) – ...................... 21
4-10. Schematic Diagram – Main Section (2/3) – ...................... 22
4-11. Schematic Diagram – Main Section (3/3) – ...................... 23
4-12. Printed Wiring Board – Digital Section (1/2) – ................ 24
4-13. Printed Wiring Board – Digital Section (2/2) – ................ 25
4-14. Schematic Diagram – Digital Section (1/5) – ................... 26
4-15. Schematic Diagram – Digital Section (2/5) – ................... 27
4-16. Schematic Diagram – Digital Section (3/5) – ................... 28
4-17. Schematic Diagram – Digital Section (4/5) – ................... 29
4-18. Schematic Diagram – Digital Section (5/5) – ................... 30
4-19. Printed Wiring Boards
– Front B/Center Speaker Section – .................................. 31
4-20. Schematic Diagram
– Front B/Center Speaker Section – .................................. 32
4-21. Printed Wiring Boards – Video Section – ......................... 33
4-22. Schematic Diagram – Video Section – .............................. 34
4-23. Printed Wiring Board – HDMI Section – .......................... 35
4-24. Schematic Diagram – HDMI Section – ............................ 36
4-25. Printed Wiring Board – XM Section – .............................. 37
4-26. Schematic Diagram – XM Section – ................................. 38
4-27. Printed Wiring Board – ADCC Section – ......................... 39
4-28. Schematic Diagram – ADCC Section – ............................ 39
4-29. Printed Wiring Boards – Display Section – ...................... 40
4-30. Schematic Diagram – Display Section – ........................... 41
4-31. Printed Wiring Board – Power Section – .......................... 42
4-32. Schematic Diagram – Power Section – ............................. 43
5. EXPLODED VIEWS
5-1.   Case Section ...................................................................... 53
5-2.   Front Panel Section ........................................................... 54
5-3.   Back Panel Section ............................................................ 55
5-4.   Chassis Section ................................................................. 56
6. ELECTRICAL PARTS LIST
........................................ 57
4
STR-K7000
SECTION 1
GENERAL
This section is extracted
from instruction manual.
5
US
Gettin
g Sta
rted
Description and location of parts
Front panel
To remove the cover
Press PUSH.
When you remove the cover, keep it out of 
reach from children.
Getting Started
Receiver
?/1
AUTO CAL MIC
SPEAKERS
(OFF/A/B/A+B)
PHONES
VIDEO 3 IN/PORTABLE AV IN
VIDEO
L  AUDIO   R
MEMORY/
ENTER
TUNING 
MODE
TUNING
2CH
A.F.D.
MOVIE
MUSIC
MULTI CH IN
MUTING
DISPLAY
INPUT MODE
INPUT SELECTOR
MASTER VOLUME
MULTI CHANNEL DECODING
3
6
8
4
7
5
q;
9
qa
qs
qd
w;
qf
qg
qh
qj
qk
PUSH
ql
1
2
Name
Function
A
 
?
/
1
Press to turn the receiver on 
or off (page 29, 37, 38, 53, 
79).
B
SPEAKERS 
(OFF/A/B/A+B)
Press to select OFF, A, B, 
A+B of the front speakers 
(page 30).
C
Display
The current status of the 
selected component or a list 
of selectable items appears 
here (page 7). 
D
MULTI 
CHANNEL 
DECODING 
lamp
Lights up when multi 
channel audio is decoded 
(page 38). 
continued
6
US
Name
Function
E
Remote sensor
Receives signals from 
remote commander.
F
DISPLAY
Press to select information 
displayed on the display 
(page 67).
G
INPUT MODE
Press to select the input 
mode when the same 
components are connected 
to both digital and analog 
jacks (page 64).
H
MASTER 
VOLUME
Turn to adjust the volume 
level of all speakers at the 
same time (page 34, 35, 
37, 38).
I
MUTING
Press to mute the sound 
(page 35).
J
MULTI CH IN
Press to select the audio 
directly from the 
components connected to 
the MULTI CH IN jacks 
(page 35).
K
INPUT 
SELECTOR
Turn to select the input 
source to playback (page 
35, 37, 38, 54, 56, 64, 66, 
68).
L
MOVIE, 
 
MUSIC
Press to select sound fields 
(MOVIE, MUSIC) (page 
50).
M
A.F.D.
Press to select A.F.D. 
mode (page 48).
N
2CH
Press to select 2CH 
STEREO mode (page 52, 
53).
O
TUNING +/–
Press to scan a station 
(page 54, 55).
P
TUNING MODE
Press to select the tuning 
mode (page 56, 79).
Q
MEMORY/ENTER
Press to store a station or 
enter the selection when 
selecting the settings 
(page 29).
Name
Function
R
VIDEO 3 IN/
PORTABLE AV IN 
jacks
To connect a camcorder or 
video game (page 27, 35).
S
AUTO CAL MIC 
jack
Connects to the supplied 
ECM-AC2 optimizer 
microphone for the Auto 
Calibration function (page 
31).
T
PHONES jack
Connects to a headphone 
(page 75).
7
US
Gettin
g Sta
rted
About the indicators on the display
MEMORY
L
C
R
SL
S
SR
SW
LFE
SP A
SP B
CAT
STEREO MONO
D.RANGE
SLEEP OPT COAX
HDMI
DIGITAL
;
DTS
;
PRO LOGIC II
9
qf
qg
qs
qd
qa
q;
2
1
4
3
5
6
7
8
Name
Function
A
SW
Lights up when the audio signal 
is output from the SUB 
WOOFER jack.
B
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.
C
SP A/SP B
Lights up according to the 
speaker system used. However, 
these indicators do not light up 
if the speaker output is turned 
off or if a headphone is 
connected.
D ;
DIGITAL
Lights up when Dolby Digital 
signals are input.
Note
When playing a Dolby Digital 
format disc, be sure that you 
have made digital connections 
and that INPUT MODE is not 
set to “ANALOG” (page 64).
E ;
PRO 
LOGIC (II)
Lights up when the receiver 
applies Pro Logic processing to 
2 channel signals in order to 
output the center and surround 
channel signals. “; PRO 
LOGIC II” lights up when the 
Pro Logic II Movie or Music 
decoder is activated.
Note
Dolby Pro Logic and Dolby Pro 
Logic II decoding do not 
function for DTS format 
signals.
Name
Function
F
DTS
Lights up when DTS signals are 
input. 
Note
When playing a DTS format 
disc, be sure that you have made 
digital connections and that 
INPUT MODE is not set to 
“ANALOG” (page 64).
G
MEMORY
Lights up when a memory 
function, such as Preset 
Memory (page 55), etc., is 
activated.
H
Preset 
station 
indicators
Lights up when using the 
receiver to tune in radio stations 
you have preset. For details on 
presetting radio stations, see 
page 55.
I
Tuner 
indicators
Lights up when using the 
receiver to tune in radio stations 
(page 53), etc.
J
D.RANGE
Lights up when dynamic range 
compression is activated (page 
40).
K
HDMI
Flashes when you select 
“HDMI A.” in the VIDEO 
menu (page 65).
L
COAX
Lights up when INPUT MODE 
is set to “AUTO” and the source 
signal is a digital signal being 
input through the COAXIAL 
jack, or when INPUT MODE is 
set to “COAX IN” (page 64).
continued
8
US
Name
Function
M
OPT
Lights up when INPUT MODE 
is set to “AUTO” and the source 
signal is a digital signal being 
input through the OPTICAL 
jack, or when INPUT MODE is 
set to “OPT IN” (page 64).
N
SLEEP
Lights up when the sleep timer 
is activated (page 67).
O
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
L
C
R
SL
SR
SW
Page of 71
Display

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  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).