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AEP Model

STR-KSL40/SL40

UK Model

STR-KSL40

2003F02-1

© 2003.06

Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic” and the double-D symbol are
trademarks of Dolby Laboratories.

• STR-KSL40 is the receiver section in HT-SL40.

Photo : STR-SL40

Amplifier section
POWER OUTPUT
Models of area code CEL,CEK
Rated Power Output at Stereo Mode
(8 ohms 1 kHz, THD 0.7 %)

25 W + 25 W

2)

(8 ohms 1 kHz, THD 10 %)

FRONT

1)

: 35 W/ch

CENTER

1)

: 35 W

SURR

1)

: 35 W/ch

Models of other area code
Rated Power Output at Stereo Mode
(8 ohms 1 kHz, THD 0.7 %)

20 W + 20 W

2)

(8 ohms 1 kHz, THD 10 %)

FRONT

1)

: 30 W/ch

CENTER

1)

: 30 W

SURR

1)

: 30 W/ch

1) Depending on the sound field settings and the source, there may be
    no sound output.
2) Measured under the following conditions:

CEL, CEK

230 V AC, 50 Hz

Frequency response
TV/SAT, DVD, VIDEO:

10 Hz – 50 kHz
+0.5/–3 dB (with sound field and tone
by passed)

Inputs (Analog)
TV/SAT, DVD, VIDEO:

Sensitivity: 250 mV
Impedance: 50 kilohms S/N

3)

: 96 dB

(A, 250 mV

4)

)

3) INPUT SHORT (with sound field and tone by passed).
4) Weighted network, input level.

Inputs (Digital)
DVD (Coaxial)

Sensitivity: –
Impedance: 75 ohms
S/N: 100 dB
(A, 20 kHz LPF)

DVD, TV/SAT (Optical)

Sensitivity: –
Impedance: –
S/N: 100 dB
(A, 20 kHz LPF)

Outputs
SUB WOOFER

Voltage: 2 V
Impedance: 1 kilohms

Tone
Gain levels:

±6 dB, 1 dB step

Video section
Inputs
Video:

1 Vp-p, 75 ohms

Outputs
Video:

1 Vp-p, 75 ohms

87.5 – 108.0 MHz

75 ohms, unbalanced

10.7 MHz

Sensitivity
Mono:

18.3 dBf, 2.2 

µV/75 ohms

Stereo:

38.3 dBf, 22.5 

µV/75 ohms

11.2 dBf, 1 

µV/75 ohms

2

S/N
Mono:

76 dB

Stereo:

70 dB

Harmonic distortion at 1 kHz
Mono:

0.3%

Stereo:

0.5%

45 dB at 1 kHz

30 Hz – 15 kHz
+0.5/–2 dB

60 dB at 400 kHz

AM tuner section
Tuning range
Models of area code CEL, CEK
With 9-kHz tuning scale:

531 – 1602 kHz

Loop antenna

450 kHz

50 dB/m (at 999 kHz)

54 dB (at 50 mV/m)

0.5% (50 mV/m, 400 Hz)

At 9 kHz: 35 dB

CEL, CEK

230 V AC, 50/60 Hz

CEL, CEK 130 W

0.3 W

430 x 56 x 288 mm

including projecting parts and controls

4.5 kg

Supplied accessories (STR-SL40)
FM wire antenna (1)
AM loop antenna (1)
Remote commander RM-U40 (1)
R6 (size-AA) batteries (2)
Speakers plugs (5)
Hexagon wrench (1)

Design and specifications are subject to change without notice.

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.)

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 dam-

aged by heat.

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 NUM-
BERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLE-
MENTS PUBLISHED BY SONY.

Specifications ............................................................................  1

...................................................................... 3

................................................................. 4

3-1.   IC Pin Function Descriptions .................................. 6
3-2.   Block Diagrams – Main Section – ........................ 10
         Block Diagrams – Display/Power Section – ......... 11
3-3.   Printed Wiring Boards
         – Digital Section (Side A)– ................................... 12
         Printed Wiring Boards

                   – Digital Section (Side B)– ................................... 13

3-4.   Schematic Diagram – Digital Section (1/3)– ........ 14
3-5.   Schematic Diagram – Digital Section (2/3)– ........ 15
3-6.   Schematic Diagram – Digital Section (3/3)– ........ 16
3-7.   Printed Wiring Boards – Main Section– ............... 17
3-8.   Schematic Diagram – Main Section (1/2)– .......... 18
3-9.   Schematic Diagram – Main Section (2/2)– .......... 19
3-10. Printed Wiring Boards – Display Section– ........... 20
3-11. Schematic Diagram – Display Section– ............... 21
3-12. IC Block Diagrams ................................................ 22

4-1. Front Panel Section ................................................. 23
4-2. Cabinet Section ........................................................ 24

.................................... 25

3

This section is extracted
from instruction manual.

?/1

1

2

3

4

5

6

7

8

9

0

qs

qd

qa

Display 6
DVD (indicator) 3
INPUT SELECTOR 8
IR (receptor) 7
MASTER VOLUME 9
MUTING qs
PRESET TUNING +/– qd 
SOUND FIELD qa
TUNER (indicator) 5
TV/SAT (indicator) 4
VIDEO (indicator) 2

?/1 (power) 1
; PLII q;

4

* All preset contents are reset to the default setting.
* Procedure:

While depressing the  PLII  and the  PRESET TUNING +  but-
tons simultaneously, press the power  ?/1  button to turn on the
main power.  The message “FACTORY” appears and the present
contents are reset to the default values.

* This mode is installed in the Europe models only. When this

mode is used, the receiver scans the broadcasts that can be re-
ceived by the tuner, and sets up the broadcasts. Be sure to start
scanning after connecting the antenna.

* Procedure :
1. Check that the antenna is connected.
2. While depressing the  INPUT SELECTOR  button, press the

 ?/1  button to turn on the main power.

3. The message “AUTO-BETICAL SELECT” appears and the

receiver starts scanning.

* Either the micro speaker mode or normal speaker mode can be

selected.

* Procedure

While depressing the  MUTING  button, press the power  ?/1
button to turn on the main power. Either the message “MICRO
SP.” or “NORM. SP.” appears. Select the desired mode.

* The preset sound field is cleared when this mode is activated.

Use this mode before returning the product to clients upon
completion of repair.

* Procedure:

While depressing the  SOUND FIELD  button, press the power
 ?/1  button to turn on the main power.  The message
“SF. CLR” appears and initialization is performed.

* The all preset value is cleared when this mode is activated.
* Procedure :

While depressing the  PLII  and the  PRESET TUNING -  buttons
simultaneously, press the power  ?/1  button to turn on the main
power. The message “CLEARED” appears and clear all preset
value.

* The software version is displayed.
* Procedure:

While depressing the  SOUND FIELD  and the  PRESET TUN-
ING -  buttons simultaneously, press the power  ?/1  button to
turn on the main power.  The model name, destination and the
software version are  displayed.

* Button check
* Procedure:

While depressing the MUTING and the INPUT SELECTOR
buttons simultaneously, press the power  ?/1  button to turn on
the main power.
“REST 06” appears.
Every pressing of any button other than  ?/1  counts down the
buttons.  The buttons which are already counted once are not
counted again.  When all buttons are pressed “REST 00” appears.

* 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:

While depressing the   MUTING   and the   PRESET TUNING
-   buttons simultaneously, press the power  ?/1  button to turn
on the main power.

1. All segments turn on.

 VIDEO ,   DVD ,   TV/SAT  and  TUNER  LED turn on.

2. Press the  INPUT SELECTOR  button, confirm display

 VIDEO , and  TUNER  LED turn on.

3. Press the  INPUT SELECTOR  button, confirm display

 DVD  and  TV/SAT  LED turn on.

4. Press the  INPUT SELECTOR  button, all segments and LEDs

turn off.

5. Every pressing of the  INPUT SELECTOR  button turns on

each segment and LED one after another in the same order.

* Tuner check
* Procedure :

While depressing the  SOUND FIELD  and the  INPUT SE-
LECTOR  buttons simultaneously, press the power  ?/1  but-
ton to turn on the main power. “TUN CHK” appears and the
tuner checking is performed.

* DSP tests are performed.
* Procedure :

There are two different methods to enter the test mode.

(1) While depressing the  INPUT SELECTOR  and  PRESET

TUNING -  buttons simultaneously, press the power  ?/1
button to turn on the main power.

(2) When the set is turned on, by using the remote controller, press

the  ENTER  button three times, then press the  MAIN MENU
button one time and thenpress the  MUTING  button one time.

• Select the item by pressing Cursor button ( 

V  or  v ).

• Select the function by pressing Cursor button ( 

B  or  b ).

L

SW

SL

SR

SSB

C

R

 L F E

OPT COAX

RDS

MONO

ST

D.RANGE

dB

kHz
mft.

MHz

DIGITAL
PRO LOGIC II

DTS

MPEG-2 AAC

MEMORY

L

SW

SR

S

C

R

 L F E

COAX

RDS

MONO

ST

k
m

MHz

DIGITAL
PRO LOGIC

MPEG

SL

S   B

OPT

D.RANGE

dB

Hz

ft.

II

DTS

-2 AAC

MEMORY