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SERVICE MANUAL

AM/FM Stereo Tuner

Effective : December, 2002

S-0075A

CONTENTS

1  SPECIFICATIONS 

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2

2  ADJUSTMENTS AND CHECKS 

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3  EXPLODED VIEWS AND PARTS LIST 

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4  PC BOARDS AND PARTS LIST 

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NOTES

PC boards 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.

Содержание T-1D

Страница 1: ...PC boards 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 replaceme...

Страница 2: ... kHz 40 dB Signal to Noise Ratio Mono 72 dB Stereo 70 dB AM Tuner Section Tuning Range 522 kHz 1 620 kHz 9 kHz steps Usable Sensitivity 55 dB m Total Harmonic Distortion 0 8 at 85 dB m Signal to Noise Ratio 45 dB at 85 dB m General Power Requirements 230 V AC 50 Hz Power Consumption 8 W Dimensions W x H x D 435 x 102 x 270 mm Weight net 3 6kg Standard Accessories AM Loop Antenna x 1 FM Lead type A...

Страница 3: ...dulator Frequency counter Distortion analyser IMPORTANT 1 Check power source voltage 2 Set the function switch to band aligned 3 Keep the signal input as low as possible to adjust accurately 4 Modulation and modulation frequency Item Modulation Modulation frequency Band AM 30 400Hz FM 100 75KHz Dev 400Hz ADJUSTMENT POINT MAIN PCB T2 T3 2 T4 T5 TVR5 TVR4 TVR2 TVR1 TVR3 T1 TVC1 TVC2 TP1 L2 RF1 P5 P6...

Страница 4: ...e AM ANT Coil through the loop antenna Adjust for the indication of VTVM of the wave form of scope to be maximum BAND Step Frequency Adjust for Adjustment 1 630KHz Maximum sensitivity L2 T2 2 1422KHz Maximum sensitivity TVC2 3 Repeat steps 1 and 2 several times AM NO Frequency Adjust for Adjustment 1 97 8MHz L rejection T4 2 P5 GND 3 97 8MHz 97 8MHz TVR3 T5 L R rejection R rejection 3 FM 19kHz REJ...

Страница 5: ...T3 2 3 5 FM AM AUTO STOP LEVEL ADJUSTMENT FM SIGNAL GENERATOR Connect to FM ANT Jack FM IN through the dummy AM SIGNAL GENERATOR Connect to AM ANT Coil through the Loop antenna BAND STEP SIGNAL GENERATOR Adjust for Adjustment 1 97 8MHz 16dB Display ON TVR1 1 630KHz 74dB Display ON TVR2 AM FM TUNED TUNED 4 Repeat steps 1 and 2 Several times 97 8MHz Minimum T H D T1 TP1 TP1 NO Frequency Adjust for A...

Страница 6: ... 6 1 2 3 4 5 6 7 8 9 0 q w e r t y u i o p a s d f g 3 EXPLODED VIEWS AND PARTS LIST ...

Страница 7: ...230000 BOTTOM PLATE 78C266200000 15 9A09231700 BRACKER U TYPE 78C206000000 16 9A09525150 POWER PCB ASSY T1DB3852 17 9A09523800 UPPER COVER 78C287300000 18 9A09525050 TUNER PCB ASSY T1DB3850 19 9A09529600 B4231 PCB ASSY 60B4231 20 9A09231500 BUSHING SB4F 4 98BSB4F4 21 9A09503900 AC CORD 654H2E20B21S 22 9A09231300 HOLDER ANT 85A271 23 9A09523700 REAR PLATE 78C2839W0350 24 9A09502600 END CAP LIFT 76H...

Страница 8: ... 8 4 PC BOARDS AND PARTS LIST B4230 B4231 PCB B3850 PCB B3852 PCB ...

Страница 9: ... JACK J2 9A09245000 WAFER 5045 7P J3 9A09525900 WAFER 5045 8P J4 9A09244900 WAFER 5045 6P TUNER PCB ASSY REF NO PARTS NO DESCRIPTION J8 J10 9A09244800 WAFER 5045 2P JP1 9A09526000 ANT TERMINAL L1 9A09242600 CHOKE 2 2UH L2 9A09242800 I F T LA 003 P2 9A09244600 TERMNAL GND P5 P6 9A09244700 PIN 1 5x3 5x9 Q1 Q2 9A09240500 TR 2SC1815BL Q3 9A09240600 TR 2SA1015 Q4 9A09240500 TR 2SC1815BL Q5 9A09241600 T...

Страница 10: ...S NO DESCRIPTION 9A09525150 POWER PCB ASSY B3852 9A09245200 PCB B3850 B3852 B3853 9A09527900 KIT B3582 F3 9A09241200 FUSE HOLDER J5 TO J4 9A09245600 CONNECTOR ED 488 6P J9 9A09245400 WAFER 3963 3P2T T6 9A09245500 TRANSFORMER 10 ...

Страница 11: ...8 6 7 4 5 2 3 1 E D C B A SCHEMATIC DIAGRAM T 1D AM FM Stereo Tuner T T 1 1D D 1 st Issue August 2002 ...

Страница 12: ...8 6 7 4 5 2 3 1 E D C B A SCHEMATIC DIAGRAM T 1D AM FM Stereo Tuner T T 1 1D D 1 st Issue August 2002 ...

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