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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 ยตF
1.5 k-ฆAC
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
AntennaLoop antenna
Intermediate frequency
450 kHz
Usable sensitivity50 dB/m (at 1,000 kHz or
999 kHz)
S/N54 dB (at 50 mV/m)
Harmonic distortion0.5% (50 mV/m, 400 Hz)
SelectivityAt 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 consumption98 W
Power consumption (during standby mode)
1.7 W
1.9 W
Dimensions (w/h/d)430 ร 83 ร 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
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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
ร- LA SรCURITร!
LES COMPOSANTS IDENTIFรS PAR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHรMATIQUES ET LA LISTE DES PIรCES SONT
CRITIQUES POUR LA SรCURITร DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIรSES SONY
DONT LES NUMรROS SONT DONNรS DANS CE MANUEL OU
DANS LES SUPPรMENTS PUBLIรS 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 ยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยท 4
2. TEST MODE ยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยท 5
3. DIAGRAMS ยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยท 7
3-1. Block Diagrams ยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยท 8
- Main Section - ยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยท 8
- Display/Power Section - ยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยท 9
3-2. Printed Wiring Board - Digital Section - ยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยท 10
3-3. Schematic Diagram - Digital Section (1/2) - ยทยทยทยทยทยทยทยทยทยทยทยท 11
3-4. Schematic Diagram - Digital Section (2/2) - ยทยทยทยทยทยทยทยทยทยทยทยท 12
3-5. Printed Wiring Board - Main Section (1/2) - ยทยทยทยทยทยทยทยทยทยทยทยท 13
3-6. Printed Wiring Board - Main Section (2/2) - ยทยทยทยทยทยทยทยทยทยทยทยท 14
3-7. Schematic Diagram - Main Section (1/3) - ยทยทยทยทยทยทยทยทยทยทยทยทยทยทยท 15
3-8. Schematic Diagram - Main Section (2/3) - ยทยทยทยทยทยทยทยทยทยทยทยทยทยทยท 16
3-9. Schematic Diagram - Main Section (3/3) - ยทยทยทยทยทยทยทยทยทยทยทยทยทยทยท 17
3-10. Printed Wiring Board - Panel Section - ยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยท 18
3-11. Schematic Diagram - Panel Section - ยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยท 19
3-12. Schematic Diagram - Video Section - ยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยท 20
3-13. Printed Wiring Board - Video Section - ยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยท 21
3-14. IC Block Diagrams ยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยท 22
3-15. IC Pin Function Descriptions ยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยท 25
4. EXPLODED VIEWS ยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยท 29
4-1. Front Panel Section ยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยท 29
4-2. Chassis Section ยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยท 30
5. ELECTRICAL PARTS LIST ยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยทยท 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 40ยฐC 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 350ยฐC.
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.