Related Manuals for Sony SRF-T615
Summary of Contents for Sony SRF-T615
- Page 1 SRF-T615 SERVICE MANUAL Tourist Model Ver 1.0 1999.10 SPECIFICATIONS FM STEREO/AM PLL SYNTHESIZED RADIO MICROFILM...
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Page 2: Table Of Contents
TABLE OF CONTENTS Specifications ................1 Flexible Circuit Board Repairing • Keep the temperature of the soldering iron around 270°C during 1. GENERAL repairing. Location and Function of Controls ........2 • Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). -
Page 3: Disassembly
SECTION 2 DISASSEMBLY The equipment can be removed using the following procedure. Cover (JOG) (A) Lid, Battery Case Cabinet (Rear) Main Board Note : Follow the disassembly procedure in the numerical order given. 2-1. COVER (JOG) (A) 1 Screw (B1.7x9) Cover (JOG) (A) 3 Turn from upper side of the cover (JOG) (A),... -
Page 4: Cabinet (Rear)
2-3. CABINET (REAR) 1 Screw (1.7x9) Cabinet (rear) 2 Claw 2 Two claws 4 Knod (HOLD) 2 Two claws 5 Button (MENU) Cabinet (front) ASSY 2 Two claws 2-4. MAIN BOARD 1 Lead wire (Black) Terminal (+) (A), battery Terminal (–) (A), battery 2 Screws (1.4) Main board 3 Remove solder... -
Page 5: Adjustments
SECTION 3 ADJUSTMENTS • Repeat the procedures in each adjustment several times, and the TUNER SECTION 0dB = 1µ V frequency coverage and tracking adjustments should be finally done by the trimmer capacitors. AM Section AM IF ADJUSTMENT Band : AM Adjust for a maximum reading on level meter. - Page 6 FM VCO Adjustment Connect Location : Procedure : [MAIN BOARD] (SIDE A) C302 R203 FM RF signal C209 C208 generator C130 C133 0.01 µ F IC201 TP102 (RF IN) MAIN board frequency counter 1 µ F Carrier frequency : 98MHz R202 C205 IC201 4...
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Page 7: Diagrams
SECTION 4 DIAGRAMS 4-1. EXPLANATION OF IC TERMINALS IC502 µPD17073GB-925-9EU (SYSTEM CONTROL, LCD DRIVE) Pin No. Pin name Description — Not used (OPEN). EEPROM CS — Not used (OPEN). TV 4-12CH — Not used (OPEN). MUTE Audio mute signal output. —... - Page 8 Pin No. Pin name Description LCD5 Segment signal output for LCD. LCD6 Segment signal output for LCD. LCD7 Segment signal output for LCD. LCD8 Segment signal output for LCD. LCD9 Segment signal output for LCD. LCD10 Segment signal output for LCD. LCD11 Segment signal output for LCD.
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Page 9: Block Diagrams
4-2. BLOCK DIAGRAMS SRF-T615 • Signal path. : FM – 9 – – 10 – – 11 –... -
Page 10: Printed Wiring Boards
SRF-T615 4-3. PRINTED WIRING BOARDS Semiconductor Location J301 Ref. No. Location D101 D102 D103 [MAIN BOARD] (SIDE A) [MAIN BOARD] (SIDE B) D104 D301 D501 D601 D602 S502 S508 S510 S506 S505 S512 S509 IC101 LCD501 IC201 IC301 L303 R305 IC501 (–) -
Page 11: Schematic Diagram
4-4. SCHEMATIC DIAGRAM Refer to page 18 for IC Block Diagrams. SRF-T615 WAVEFORMS 1.7 Vp-p 75 kHz IC502 wk VOLT/DIV : 0.5 V AC X OUT TIME/DIV : 5 µsec 13.2 Vp-p 466 nsec VOLT/DIV : 2 V AC T601 TIME/DIV : 0.2 µsec... -
Page 12: Exploded View
SECTION 5 SECTION 6 MAIN EXPLODED VIEW ELECTRICAL PARTS LIST NOTE : NOTE : IC BLOCK DIAGRAMS • -XX, -X mean standardized parts, so they • The mechanical parts with no reference • Due to standardization, replacements in the • SEMICONDUCTORS When indicating parts by reference num- may have some difference from the original number in the exploded views are not... - Page 13 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C521 1-162-970-11 CERAMIC CHIP 0.01uF < LIQUID CRYSTAL DISPLAY > C523 1-162-970-11 CERAMIC CHIP 0.01uF C524 1-162-970-11 CERAMIC CHIP 0.01uF LCD501 1-803-791-11 DISPLAY PANEL, LIQUID CRYSTAL C525 1-162-970-11 CERAMIC CHIP 0.01uF <...
- Page 14 SRF-T615 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R505 1-218-965-11 RES,CHIP 1/16W < TRANSFORMER > R506 1-218-989-11 RES,CHIP 1/16W T101 1-416-019-11 TRANSFORMER, IF (AM) (AM IF) R508 1-218-965-11 RES,CHIP 1/16W T601 1-435-090-21 TRANSFORMER, DC-DC CONVERTER...