HT-SL7, HT-SL7A, STR-KSL7, STR-SL7, TA-KSL7 - Sony Audio Service Manual (repair manual)

Model
HT-SL7 HT-SL7A STR-KSL7 STR-SL7 TA-KSL7
Pages
41
Size
6.02 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
ht-sl7-ht-sl7a-str-ksl7-str-sl7-ta-ksl7.pdf
Date

View Sony HT-SL7 / HT-SL7A / STR-KSL7 / STR-SL7 / TA-KSL7 Service Manual online

STR-KSL7/SL7/TA-KSL7
US Model
STR-SL7
Canadian Model
E Model
STR-KSL7
AEP Model
UK Model
Chinese Model
TA-KSL7
SERVICE MANUAL
HOME THEATER SYSTEM
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-873-368-01
2001J1600-1
© 2001.10
SPECIFICATIONS
Ver 1.0  2001. 10
Photo : TA-KSL7
Dolby Laboratories Licensing Corporation.
“DOLBY” the double-D symbol ; “AC-3” and “PRO LOGIC”
are trademarks of Dolby Laboratories Licensing Corporation.
Amplifier section
POWER OUTPUT
Rated Power Output at Stereo mode
(8 ohms 1 kHz, THD 0.3 %)
80 W + 80 W
Reference Power Output
(THD 0.3 %)
Front
1)
: 80 W/ch
Center
1)
: 80 W
Surround
1)
: 80 W/ch
1) Depending on the sound field settings and the
source, there may be no sound output.
Frequency response
MICRO SP.:
150 Hz – 20 kHz
0/–3 dB
150 Hz (6 dB/oct)
Low cut Filter ON
NORMAL SP.:
20 Hz – 20 kHz
+/–0.5 dB
Outputs
FRONT L/R, CENTER, SURROUND L/R,
SUB WOOFER
Voltage: 2 V
Impedance: 1 kilohms
Video section
Inputs
S-video:
Y: 1 Vp-p, 75 ohms
C: 0.286 Vp-p, 75 ohms
Outputs
S-video:
Y: 1 Vp-p, 75 ohms
C: 0.286 Vp-p, 75 ohms
FM tuner section
Tuning range
87.5 – 108.0 MHz
Antenna terminals
75 ohms, unbalanced
Intermediate frequency
10.7 MHz
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
Inputs (Analog)
Sensitivity: 250 mV
Impedance: 50 kilohms
S/N
2)
: 80 dB
(A, 20 kHz LPF,
250 mV
3)
)
2) INPUT SHORT.
3) Weighted network, input level.
Inputs (Digital)
DVD (Coaxial)
Sensitivity: –
Impedance: 75 ohms
S/N: 96 dB
(A, 20 kHz LPF)
TV, AUX (Optical)
Sensitivity: –
Impedance: –
S/N: 96 dB
(A, 20 kHz LPF)
Inputs (Analog)
Sensitivity: 250 mV
Impedance: 50 kilohms
S/N
2)
: 95 dB
(A, 250 mV
3)
)
2) INPUT SHORT.
3) Weighted network, input level.
Inputs (Digital)
DVD (Coaxial)
Sensitivity: –
Impedance: 75 ohms
S/N: 95 dB
(A, 20 kHz LPF)
TV, AUX (Optical)
Sensitivity: –
Impedance: –
S/N: 95 dB
(A, 20 kHz LPF)
TA-KSL7 : AEP, UK models
EXCEPT TA-KSL7 : AEP, UK models
EXCEPT TA-KSL7
— Continued on next page —
• STR-KSL7 is the receiver section in HT-SL7.
TA-KSL7 is the amplifier section in HT-SL7A.
2
STR-KSL7/SL7/TA-KSL7
    After correcting the original service problem, perform the
following safety checks 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
    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 2V AC range are suitable. (See
Fig. A)
SAFETY  CHECK-OUT
To Exposed Metal 
Parts on Set
0.15 
µ
F
1.5 k
AC
Voltmeter
(0.75 V)
Earth Ground
Fig. A.  Using an AC voltmeter to check AC leakage.
AM tuner section
Tuning range
With 10-kHz tuning scale:
530 – 1710 kHz
With 9-kHz tuning scale:
531 – 1710 kHz
With 10-kHz tuning scale:
530 – 1610 kHz
With 9-kHz tuning scale:
531 – 1602 kHz
530 – 1610 kHz
531 – 1602 kHz
Antenna
Loop antenna
Intermediate frequency
450 kHz
Usable sensitivity
50 dB/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
4) You can change the AM tuning scale to 9 kHz 
10 kHz. After tuning in any AM station, turn off
the receiver. Hold down the + button and press the
 button. 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.
General
Power requirements
120 V AC, 60 Hz
110 – 120 V AC,
50/60 Hz
220 – 230 V AC,
50/60 Hz
230 V AC, 50/60 Hz
Power consumption
98 W
Power consumption (during standby mode)
1.7 W
1.9 W
Dimensions (w/h/d)
430 
×
 83 
×
 289 mm
including projecting parts
and controls
Mass (Approx.)
3.1 kg
US, Canadian models
E model
Mexican model
Malaysia, Singapore
models
STR-SL7 : US, STR-KSL7, Canadian, Mexican models
STR-SL7 : US, STR-KSL7, Canadian, Mexican models
TA-KSL7 : AEP, UK, Chinese models
STR-KSL7 : E model
STR-KSL7 : Malaysia, Singapore models
STR-KSL7 : Malaysia, Singapore models
STR-SL7 : US model
Supplied accessories
FM wire antenna (1)
AM loop antenna (1)
Remote commander RM-U305S (1)
R6 (size-AA) batteries (2)
Design and specifications are subject to change
without notice.
EXCEPT TA-KSL7
3
STR-KSL7/SL7/TA-KSL7
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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
MODEL IDENTIFICATION
— BACK PANEL —
PARTS No.
4-235-042-1s
4-235-042-2s
4-235-042-3s
4-235-042-4s
4-235-042-5s
4-235-042-7s
4-235-042-9s
MODEL
STR-SL7
:US model
STR-KSL7 :Canadian model
STR-KSL7 :Malaysia, Singapore model
STR-KSL7 :E model
STR-KSL7 :Mexican model
TA-KSL7
:AEP, UK model
TA-KSL7
:Chinese model
1. GENERAL
·········································································· 4
2. TEST MODE
······································································ 5
3. DIAGRAMS
········································································ 7
3-1. Block Diagrams ····························································· 8
– Main Section – ··························································· 8
– Display/Power Section – ············································ 9
3-2. Printed Wiring Board  – Digital Section – ·················· 10
3-3. Schematic Diagram  – Digital Section (1/2) – ············ 11
3-4. Schematic Diagram  – Digital Section (2/2) – ············ 12
3-5. Printed Wiring Board  – Main Section (1/2) – ············ 13
3-6. Printed Wiring Board  – Main Section (2/2) – ············ 14
3-7. Schematic Diagram  – Main Section (1/3) – ··············· 15
3-8. Schematic Diagram  – Main Section (2/3) – ··············· 16
3-9. Schematic Diagram  – Main Section (3/3) – ··············· 17
3-10. Printed Wiring Board  – Panel Section – ····················· 18
3-11. Schematic Diagram  – Panel Section – ······················· 19
3-12. Schematic Diagram  – Video Section – ······················· 20
3-13. Printed Wiring Board  – Video Section – ···················· 21
3-14. IC Block Diagrams ······················································ 22
3-15. IC Pin Function Descriptions ······································ 25
4. EXPLODED VIEWS
······················································ 29
4-1. Front Panel Section ····················································· 29
4-2. Chassis Section ···························································· 30
5. ELECTRICAL PARTS LIST
······································· 31
Parts No.
TABLE OF CONTENTS
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 viscous (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.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be damaged
by heat.
4
STR-KSL7/SL7/TA-KSL7
SECTION 1
GENERAL
This section is extracted
from instruction manual.
AUX 6 (18)
Cursor buttons (U/u) qh (14,
22–24)
Display qk (21)
DVD 3 (18)
LEVEL qj (22)
MASTER VOLUME qa (17, 18)
MULTI CH IN 8 (18)
MULTI CHANNEL DECODING
indicator 5
MUTING qd (18)
PHONES jack ql (18)
SET UP q; (14, 24)
SOUND FIELD +/– qs (19, 23)
SURR 9 (23)
TEST TONE qf (17)
TUNER 7 (18)
TV 4 (18)
VIDEO 2 (18)
?/1 (power) 1 (13, 17, 18, 23)
+/– qg (14, 22–24)
Main unit
1
2
3 456 7
8
9
q;
qa
qs
ql
qk
qj
qf
qg
qh
qd
Parts Identification
The items are arranged in alphabetical order.
Refer to the pages indicated in parentheses ( ) for details.

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Here you can view online and download Sony HT-SL7 / HT-SL7A / STR-KSL7 / STR-SL7 / TA-KSL7 Service Manual in PDF. HT-SL7 / HT-SL7A / STR-KSL7 / STR-SL7 / TA-KSL7 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony HT-SL7 / HT-SL7A / STR-KSL7 / STR-SL7 / TA-KSL7 Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.