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Chinese Model

2003I02-1

© 2003.09

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

— Continued on next page —

POWER OUTPUT

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

25 W + 25 W

2)

2)

(8 ohms 1 kHz, THD 10 %)

FRONT

1)

: 35 W/ch

CENTER

1)

: 35 W

SURR

1)

: 35 W/ch

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

25 W + 25 W

2)

20 W + 20 W

3)

2)

(8 ohms 1 kHz, THD 10 %)

FRONT

1)

: 35 W/ch

CENTER

1)

: 35 W

SURR

1)

: 35 W/ch

1)

 Depending on the sound field settings and thesource, there may be

no sound output.

2)

 Measured under the following conditions:

Power Requirements

230 V AC, 50 Hz

3)

 Measured under the following conditions:

Power Requirements

220 V AC, 50 Hz

Frequency response
TV/SAT, DVD, VIDEO:

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

Inputs (Analog)
TV/SAT, DVD, VIDEO:

Sensitivity: 250 mV
Impedance: 50 kilohms
S/N

4)

: 96 dB

(A, 250 mV

5)

)

4)

 INPUT SHORT (with sound field and tone bypassed).

5)

 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

S/N
Mono:

76 dB

Stereo:

70 dB

2

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.

·········································································· 3

······································································ 4

········································································ 5

3-1. Block Diagrams

– Main Section – ··························································· 6
– Display/Power Section – ············································ 7

3-2. Printed Wiring Board – Digital Section – ····················· 8
3-3. Schematic Diagram – Digital (1/2) Section – ··············· 9
3-4. Schematic Diagram – Digital (2/2) Section – ············· 10
3-5. Printed Wiring Board – Main/Standby Section – ········ 11
3-6. Schematic Diagram – Main (1/2) Section – ················ 12
3-7. Schematic Diagram – Main (2/2)/Standby Section – ·· 13
3-8. Printed Wiring Board – Display Section – ·················· 14
3-9. Schematic Diagram – Display Section – ····················· 15
3-10. IC Block Diagram ······················································· 16
3-19. IC Pin Function Descriptions ······································ 17

4-1. Front Panel Section ····················································· 21
4-2. Chassis Section ···························································· 22

······································· 23

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 damaged

by heat.

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
With 9-kHz tuning scale:

531 – 1602 kHz

Loop antenna

450 kHz

50 dB/m (at 999 kHz)

54 dB (at 50 mV/m)

Harmonic distortion 0.5% (50 mV/m, 400 Hz)
Selectivity

At 9 kHz: 35 dB

Power requirements

Power requirements

220 – 230 V AC, 50/60 Hz

Power consumption

Power consumption

130 W

0.3 W

Dimensions (w/h/d)
STR-SL50:

430 x 56 x 290 mm
including projecting parts and
controls

4.5 kg

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

3

This section is extracted
from instruction manual.

?/1

1

2

3

4

5

6

7

8

9

0

qs

qd

qa

Use this page to find the location of buttons
that are mentioned in the text.

 r

MUTING

qs

 R

 

 

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 +  buttons
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 received 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 TUNING
-  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
SELECTOR  buttons simultaneously, press the power  ?/1
button to turn on the main power. “TUN CHK” appears and the
tuner checking is performed.

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

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

SL

S   B

OPT

D.RANGE

dB

Hz

ft.

II

DTS

-2 AAC

MEMORY