TEAC SRL-250-I Service manual

SR-L250i

HI-FI TABLE RADIO/CD

NOTES CONTENTS

PC board shown are viewed from parts side.

The parts with no reference number or no parts number

in the exploded views are not supplied.

As regards the resistors and capacitors, refer to the

circuit diagrams contained in this manual.

!

Parts marked with this sign are safety critical

components. they must be replaced with identical

components - refer to the appropriate parts list and

ensure exact replacement.

Parts of [ ] mark can be used only with the version designated.

[UK] - [UK]; [EUR]-Europe

1 SAFETY INFORMATION ... .... ... ... .... ... ... .... ... ... .... ... ... .... ... ... ... 2

2 SPECIFICATIONS ... ... .... ... ... .... ... ... .... ... ... .... ... ... .... ... ... .... ... ... .... .. 3

3 ADJUSTMENT AND CHECK ... ... ... .... ... ... .... ... ... .... ... ... .... ... 4

4 EXPLODED VIEW AND PARTS LIST ... .... ... ... .... ... ... .... 8

5 PC BOARDS AND PARTS LIST .. ... ... .... ... ... .... ... ... .... ... .. 24

6 WIRING DIAGRAM ... ... ... .... ... ... .... ... ... .... ... ... .... ... ... .... ... ... .... ... . 32

7 INCLUDED ACCESSORIES .... ... ... .... ... ... .... ... ... .... ... ... .... ... 34

SR-L250i

1 SAFETY INFORMATION

Optical pickup :

Type : DA23SR

Manufacturer : SANYO Electric Co.,Ltd.

Laser output : Less than 0.5mW on the objective lens

Wavelength : 760-800nm

2

2 SPECIFICATIONS

SR-L250i

TUNER SECTION

Frequency Range: FM: 87.50 MHz to 108.0 MHz (EUR)

76.0 MHz to 90.0 MHz, TV1 to TV3 (JP)

AM: 522 kHz to 1620 kHz (EUR)

522 kHz to 1629 kHz (JP)

SPEAKER SYSTEM Section

Type: 60 mm x 2

Impedance: 4 ohms

GENERAL

Total Output Power 4 W

Power Requirement AC 230V.50 Hz (EUR)

AC 100V.50/60 Hz (JP)

Power Consumption 20 W

Dimension (W x H x D ) 310 x 101 x 210 mm

Weight (net) 2.2 kg

Standard Accessories

Remote Control Unit (RC-1150W or RC-1150B) x1 (EUR)

(RC-1187W or RC-1187B) x1 (JP)

Battey for Remote Control Unit (AAA) x 2

Battey for Memory Backup (CR2032) x1

AM loop antenna x 1

Dock adapter x 6 (adapter "60GB(color) + photo 40/60GB" premounted)

Stereo mini plug cable x 1

AC Adapter x 1

Owner's Manual x 1

Warranty Card x 1 (EUR)

Design and specifications are subject to change without notice. Weight and dimensions are approximate. Illustrations may differ slightly from production models.

3

SR-L250i

3 ADJUSTMENTS AND CHECKS

3-1 TUNER SECTION

Use a screwdriver with a plastic or ceramic grip for all adjustment.

3-1-1 AM adjustment

1. Set the function switch to the TUNER position.

2. Set the BAND switch to the AM position.

3. Connect the test loop antenna across the output of the signal generator.

4. Connect the oscilloscope to the PHONES JACK terminal.

5. Connect the digital multimeter to R430/R453 on TUNER PCB.

6. Set the signal generator as listed in the alignment chart.

3-1-2 FM adjustment

1. Set the function switch to the TUNER position.

2. Set the BAND switch to the FM position.

3. Connect the signal generator output through a 75 ohm dummy antenna to "ANT" on MAIN PCB.

4. Connect the oscilloscope to the PHONES JACK terminal.

5. Connect the digital multimeter to R450/C404 on TUNER PCB.

6. Set the signal generator as listed in the alignment chart.

3-2 Adjustment Locations

4

3-2-1 AM TUNER

ACvoltmete

r

AM Signal generator

AM LOOP

Antenna

60CM

AM

S1

1K Ω

VT voltage

SR-L250i

PHONES

R453

R430

Digital multimeter

SR-L250i

SG SETTING

ITEM

Audio Modulation Frequency Output

1.VOLTAGE adjustment

2.IFT adjustment

3.ANT Coil adjustment

4.Adjustment 1KHz 30% 1404KHz 76dBuV 1404KHz Check

1KHz 30% 450KHz 76dBuV 603KHz L401 AM IFT coil

1KHz 30% 603KHz 76dBuV 603KHz L405 AM ANT coil

TUNER

SETTING

1620KHz(EUR) 1629KHz(JP)

522KHz Check

ADJUSTMENTS

L402 AM OSC coil VT 8.8-9.2V

MEASURING

POINTS. RESULT

Maximun output level

5

SR-L250i

Digital multimeter

75 ohm

FM Signal generator

A

C voltmeter

FM

SR-L250i

PHONES

C404

R450

VT voltage

1K Ω

3-2-2 FM TUNER

ITEM

Audio Modulation Frequency Output

1.VOLTAGE

2.ANT Coil 1KHz 22.5kHz

3.Adjustment 1KHz 22.5kHz

SG SETTING

90.1MHz (CUR) 78 MHz (JP)

106.1MHz (CUR) 88 MHz (JP)

76dBuV

TUNER

SETTING

108MHz (EUR) TV3 CH (JP)

87.5MHz (EUR) 76 MHz (JP)

90.1MHz (EUR) 78 MHz (JP)

106.1MHz (EUR) 88 MHz (JP)

MEASURING

ADJUSTMENTS

Check VT 7+/-0.5V

Check

POINTS. RESULT

Maximun output level

6

SR-L250i

7

SR-L250i

EXPLODE VIEW-1

4 EXPLODED VIEWS AND PARTS LIST

8

SR-L250i

EXPLODED VIEW-1

PARTS LIST

REF.NO TEAC PARTS NO. PARTS NO. DESCRIPTION REMARK

1-1 010-250B0900-R DUCT COVER <L> (COLOR:BLACK)

010 -230W0300-R DUC T COVER <L> (COLOR:WHITE)

1-2 010-250B1000-R DUCT COVER <R> (COLOR:BLACK)

010 -230W0400-R DUC T COVER <R> (COLOR:WHITE)

1-3 023-23010033-R SCREW

023 -23010031-R SCREW 3X10MM BB NI HD

1-4 044-R230i051-R SPEAKER PAPER TUBE 18X 2 2X80MM

1-5 035-R230i102-R DUCT COVER L/R EVA SHEET

1-6 010-230i0100-R SPEAKER BOX L

1-7 010-250i0200-R SPEAKER BOX R

1-8 035-R230i012-R R/L SPEAKER EVA WASHER

1-9 099-39R230i1-R ABSORB COTTON A

1-10 061-230i0400-R SPEAKER 2.5" 4 OHM 5-8W

1-11 024-43008033-R SCREW 3X8MM PWA BLACK HD

3X10MM BB BLACK HD

9

SR-L250i

EXPLODE VIEW-2

10

SR-L250i

EXPLODED VIEW-2

PARTS LIST

REF.NO TEAC PARTS NO. PARTS NO. DESCRIPTION REMARKS

2-1 039-250i1111-R CD DECK BASE 2-2 039-250i0110-R CD PICK UP:DA23SR 2-3 037-SR350300-R CD RUBBER 2-4 CD PICK UP HOLDER 1C 2-5 CD PICK UP HOLDER 2A

2-6 CD PICK UP HOLDER 3A 2-7 SCREW 2-8 100-250i1050-R CD PCB ASSY 2-9 023-42606032-R SCREW

2.0X6MM PWB NI HD

2.6X6MM BB ZMC HD

11

SR-L250i

EXPLODE VIEW-3

12

SR-L250i

EXPLODED VIEW-3 PARTS LIST

REF.NO TEAC PARTS NO. PARTS NO. DESCRIPTION REMARKS

3-1 SPEAKER BOX L ASSY 3-2 SPEAKER BOX R ASSY 3-3 023-23010033-R SCREW 3-4 023-23010032-R SCREW 3-5 CD DECK ASSY

3X10MM BB BLACK HD 3X10MM BB ZMC H D

3-6 023-23008032-R SCREW 3-7 100-250i1090-R CD DOOR SWITCH PCB ASSY 3-8 035-R230i022-R SPEAKER BOX EVA SHEET <A> 3-9 035-R230i032-R SPEAKER BOX EVA SHEET <B> 3-10 035-R230i042-R SPEAKER BOX EVA SHEET <C>

3-11 035-R230i052-R SPEAKER BOX EVA SHEET <D> 3-12 035-R230i062-R SPEAKER BOX EVA SHEET <E> 3-13 035-R230i072-R SPEAKER BOX EVA SHEET <F> 3-14 099-39R230i1-R ABSORB COTTON A 3-15 002-250B0100-R BOTTOM CASE PANEL (COLOR:BLACK)

002 -250W0100-R BOT TOM CASE PANEL (COLOR:WHITE) 3-16 023-23006032-R SCREW 3-17 100-230i2060-R MEMORY BATTERY PCB ASSY 3-18 020-300i0100-R MEMORY BATTERY SPRING (-VE) 3-19 020-300i0000-R MEMORY BATTERY SPRING (+VE)

3-20 010-250B0600-R MEMO RY BATTERY COVER (COLOR:BLACK) 010 -230W0600-R MEM ORY BATTERY COVER (COLOR:WHITE) 3-21 023-33010033-R SCREW 023 -33010031-R SCREW 3-22 037-230i0100-R RUBBER FOOT

3X8MM BB ZMC HD

3X6MM BB ZMC HD

3X10MM KB BLACK HD 3X10MM KB NI HD

13