Sony SRF-HM01V Service Manual
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Sony SRF-HM01V Service Manual

Tv/weather/fm stereo/am pll synthesized headphone radio
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SERVICE MANUAL
Ver 1.0 2002.02
Time display: 12-hour system
Frequency range:
Band
Range
TV
2 - 13 ch
WEATHER
1 - 7 ch
FM
87.5 - 108 MHz
AM
530 - 1 710 kHz
531 - 1 710 kHz
Headphone type: Dynamic
Power output: 7 mW + 7 mW (at 10 % harmonic distortion)
Power requirements: 1.5V DC, one size AAA (R03) battery
Mass: Approx. 136 g (4.7 oz) incl. a battery
Supplied accessories: Operating instructions
Design
and specifications are subject to change without notice.
Sony Corporation
9-873-563-01
2002B0500-1
Personal Audio Company
C 2002.02
Published by Sony Engineering Corporation
SRF-HM01V
SPECIFICATIONS
Channel step
1 channel
1 channel
0.1 MHz
10 kHz
9 kHz
PLL SYNTHESIZED HEADPHONE RADIO
Battery Life (Approx. hours)
Sony alkaline size AAA (LR03) battery
Sony size AAA (R03) battery
* Measured by JEITA (Japan Electronics and Information Technology
Industries Association) standards.
The actual battery life may vary depending on the circumstance of the
unit.
TV/WEATHER/FM STEREO/AM
US Model
(JEITA*)
TV
WEATHER
FM
AM
33
33
37
57
14
14
16
26

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Summary of Contents for Sony SRF-HM01V

  • Page 1 Battery Life (Approx. hours) (JEITA*) Frequency range: WEATHER Band Range Channel step Sony alkaline size AAA (LR03) battery 2 - 13 ch 1 channel Sony size AAA (R03) battery WEATHER 1 - 7 ch 1 channel * Measured by JEITA (Japan Electronics and Information Technology 87.5 - 108 MHz...

  • Page 2: Table Of Contents

    SRF-HM01V TABLE OF CONTENTS Notes on chip component replacement • Never reuse a disconnected chip component. • Notice that the minus side of a tantalum capacitor may be dam- GENERAL ..............3 aged by heat. DISASSEMBLY Flexible Circuit Board Repairing 2-1.

  • Page 3: General

    SRF-HM01V SECTION 1 This section is extracted from instruction manual. GENERAL POWER ON/OFF Battery compartment lid Hook (L, R) Hang the hooks on your ears. Neckband Neckband (Left) TV/WB/FM SENS DX/LOCAL Driver Unit (Right) TUNE +* /– VOL* Display Light reflector (R, L)

  • Page 4: Disassembly

    SRF-HM01V SECTION 2 DISASSEMBLY • This set can be disassembled in the order shown below. 2-1. DISASSEMBLY FLOW 2-2. Microcomputer Board 2-4. Battery Board (Page 4) (Page 5) 2-3. MAIN Board (Page 5) 2-5 . Putting the Sheet (A) (Page 6) Note: Follow the disassembly procedure in the numerical order given.

  • Page 5: Main Board

    SRF-HM01V 2-3. MAIN BOARD Note: When installing MAIN board, fit lever (A) and switch (S1). 2 claw lever (A) 2 claw 3 MAIN Board 1 Remove nine solders. 2-4. BATTERY BOARD Note: When installing BATTERY board, 1 four screws fit lever (A) and switch (S401).

  • Page 6: Putting The Sheet (A)

    SRF-HM01V 2-5. PUTTING THE SHEET (A) Put the sheet (A) positioning its corner to the corner of C26 in the main board so that the pin of CF2 is completely covered. main board...

  • Page 7: Electrical Adjustments

    SRF-HM01V SECTION 3 ELECTRICAL ADJUSTMENTS 0 dB=1 µV AM VCO VOLTAGE ADJUSTMENT Adjustment Part Frequency Display Reading on Digital Voltmeter [AM] 1.30 ± 0.05 V 530 kHz Setting: 8.10 ± 1.00 V Confirmation 1710 kHz BAND: AM AM TRACKING ADJUSTMENT...
  • Page 8 SRF-HM01V MEMO...

  • Page 9: Diagrams

    SRF-HM01V SECTION 4 DIAGRAMS 4-1. BLOCK DIAGRAM – TUNER Section – SIGNAL PATH : FM/TV (2 − 6ch) AM BAND SWITCHING : TV (7 − 13ch) /WEATHER 10.7MHz : AM FM WIRE ANTTENA FM RF IN TV/FM/WB FM MIX 10.7MHz...

  • Page 10: Block Diagram - Main Section

    SRF-HM01V 4-2. BLOCK DIAGRAM – MAIN Section – AUDIO MASTER AMP RV101 IC201 −1 LOUT IN-L OUT-L SIGNAL PATH (HEADPHONE) NF-L : FM/TV (2 − 6ch) −2 (Page 9) ROUT IN-R OUT-R (HEADPHONE) NF-R OUT-C IN-C BST OUT MEGA BASS...

  • Page 11: Note For Printed Wiring Boards And Schematic Diagrams

    SRF-HM01V 4-3. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS • Waveforms – MAIN Board – – MICROCOMPUTER Board – Note on Printed Wiring Boards: Note on Schematic Diagram: 1 Q201 (Collector) 3 IC301 th (XIN) • All capacitors are in µF unless otherwise noted. pF: µµF •...

  • Page 12: Main Board (Component Side)

    SRF-HM01V 4-4. PRINTED WIRING BOARD – MAIN Board (Component Side) – FM WIRE ANTENNA BATTERY BOARD (Page 14) MAIN BOARD (COMPONENT SIDE) (HEADPHONE) R106 R113 E C B E C B C115 R117 R116 R105 E C B C106 • Semiconductor...

  • Page 13: Printed Wiring Board - Main Board (Conductor Side)

    SRF-HM01V 4-5. PRINTED WIRING BOARD – MAIN Board (Conductor Side) – TV/WB/FM SENS LOCAL MAIN BOARD (CONDUCTOR SIDE) (ANT) C116 (GND) Q103 BPF1 R207 T201 C206 R103 R202 R104 C203 R108 IC201 Q202 Q201 C108 E C B R101 C201...

  • Page 14: Printed Wiring Board - Battery Board

    SRF-HM01V 4-6. PRINTED WIRING BOARD – BATTERY Board – (HEADPHONE) BATTERY BOARD S401 POWER (11) 1-683-364- DRY BATTERY SIZE "AAA" (IEC DESIGNATION R03) 1PC. 1.5V MAIN BOARD (Page 12)

  • Page 15: Schematic Diagram - Battery/Main Boards

    SRF-HM01V 4-7. SCHEMATIC DIAGRAM – BATTERY/MAIN Boards – • • See page 11 for Waveforms. See page 19 for IC Block Diagrams. AM FERRITE-ROD (VT) ANTENNA (HEADPHONE) R112 4.7k 100k 100k 100p 220k R113 4.7k R116 KV1610S 1000p 470p 2SB1462...

  • Page 16: Microcomputer Board (Component Side)

    SRF-HM01V 4-8. PRINTED WIRING BOARD – MICROCOMPUTER Board (Component Side) – MICROCOMPUTER BOARD (COMPONENT SIDE) S302 S303 − TUNE LCD1 LIQUID CRYSTAL DISPLAY C313 C314 S306 BAND R329 C311 R328 R327 IC301 R326 R325 X301 R314 R324 R322 R321 R323...

  • Page 17: Printed Wiring Board - Microcomputer Board (Conductor Side)

    SRF-HM01V 4-9. PRINTED WIRING BOARD – MICROCOMPUTER Board (Conductor Side) – MICROCOMPUTER BOARD (CONDUCTOR SIDE) R330 C310 C309 Q302 Q301 R302 B C E B C E MAIN BOARD R303 R313 (Page 12) CN301 R304 R310 IC302 R306 R301 R305...

  • Page 18: Schematic Diagram - Microcomputer Board

    SRF-HM01V 4-10. SCHEMATIC DIAGRAMS – MICROCOMPUTER Board – • See page 11k for Waveform. CN301 R318 470k Q303 R332 D301 2SB1218 BAND1 RB521S B+ SWITCH BAND2 FM BAND R301 100k MONO/ST L302 22µH AM BAND C302 R303 L301 C321 R316...
  • Page 19 SRF-HM01V • IC Block Diagrams – MAIN Board – IC1 TA2154FN- (EL) BUFFER FM/AM/TV PW SW 1/8 OR 1/16 LEVEL BUFFER BUFFER FM MPX FM/TV BUFFER IC201 TA2123AF (EL) 36 35 – RF IN PW GND – OUT B PW B...

  • Page 20: 4-11. Ic Pin Function Description

    SRF-HM01V 4-11. IC PIN FUNCTION DESCRIPTION • MICROCOMPUTER BOARD IC301 TC9329FA-112 (SYSTEM CONTROLLER) Pin No. Pin Name Description 1 to 4 COM1 to COM4 Common drive signal output to the liquid crystal display 5 to 15 S1 to S11 Segment drive signal output to the liquid crystal display...

  • Page 21: Exploded Views

    SRF-HM01V SECTION 5 EXPLODED VIEWS NOTE: • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they may have some difference from the original are seldom required for routine service. Some one. delay should be anticipated when ordering •...

  • Page 22: Board Section

    SRF-HM01V 5-2. BOARD SECTION micro computer board LCD1 main board Note: Refer to “2-5. Putting the Sheet (A)” (page 6) for the place to put the sheet (A). Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark...

  • Page 23: 5-3. Cabinet (L) Section

    SRF-HM01V 5-3. CABINET (L) SECTION Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-910-063-01 SCREW (1.7X10) 3-236-801-01 TERMINAL (+), BATTERY 3-241-160-01 PAD (L), EAR 3-236-802-01 TERMINAL (-), BATTERY X-3381-330-1 CABINET (REAR) (L) ASSY 3-236-804-01 LID (SUB), BATTERY CASE...

  • Page 24: Electrical Parts List

    SRF-HM01V SECTION 6 BATTERY MAIN ELECTRICAL PARTS LIST NOTE: When indicating parts by reference • Due to standardization, replacements in the • Items marked “*” are not stocked since they number, please include the board. parts list may be different from the parts speci- are seldom required for routine service.
  • Page 25 SRF-HM01V MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-216-845-11 METAL CHIP 100K 1/10W < CERAMIC FILTER > 1-216-845-11 METAL CHIP 100K 1/10W 1-216-845-11 METAL CHIP 100K 1/10W 1-767-313-11 FILTER, CERAMIC (10.7MHz) 1-216-833-11 METAL CHIP...
  • Page 26 SRF-HM01V MICROCOMPUTER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-3021-762-A MICROCOMPUTER BOARD, COMPLETE < LIQUID CRYSTAL DISPLAY > ******************************** LCD1 1-804-537-11 DISPLAY PANEL, LIQUID CRYSTAL 1-694-858-11 CONDUCTIVE BOARD, CONNECTION 3-236-791-01 HOLDER (LCD) < TRANSISTOR >...
  • Page 27 SRF-HM01V Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark MISCELLANEOUS ************** 1-786-312-11 SWITCH, RUBBER KEY 1-823-749-11 WIRE, LEAD (6 CORE) 1-823-894-11 WIRE, LEAD (RITZ WIRE) 1-505-964-11 DRIVER (HEADPHONE) 1-505-964-11 DRIVER (HEADPHONE) ************************************************************ ACCESSORIES ************ 3-237-898-11 MANUAL, INSTRUCTION (ENGLISH)
  • Page 28 SRF-HM01V REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision...

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