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Sony TC-RE340 Srevice Manual
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Sony TC-RE340 Srevice Manual

Sony TC-RE340 Srevice Manual

Stereo cassette deck
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3 7 63 1515 0
SERVICE MANUAL
Dolby noise reduction and HX Pro headroom ex-
tension manufactured under license from Dolby
Laboratories Licensing Corporation.
HX Pro originated by Bang & Olufsen.
"DOLBY", the double-D symbol ;, and "HX PRO"
are trademarks of Dolby Laboratories Licensing Cor-
poration.
TE
L 13942296513
System
Recording system
4-track 2-channel stereo
Fast-winding time (approx.)
100 sec. (with Sony C-60 cassette)
Bias
AC bias
Signal-to-noise ratio (at peak level and weighted with Dolby
Type I tape, Sony Type I (NORMAL): 55 dB
Type II tape, Sony Type II (HIGH): 57 dB
Type IV tape, Sony Type IV (METAL): 58 dB
S/N ratio improvement (approximate values)
With Dolby B NR on: 5 dB at 1 kHz, 10 dB at 5 kHz
With Dolby C NR on: 15 dB at 500 Hz, 20 dB at 1 kHz
Harmonic distortion
0.4% (with Type I tape, Sony Type I (NORMAL):
160 nWb/m 315 Hz, 3rd H.D.)
1.8% (with Type IV tape, Sony Type IV (METAL):
250 nWb/m 315 Hz, 3rd H.D.)
www
.
http://www.xiaoyu163.com
TC-KE240/RE340
Photo: TC-RE340 (Black type)
NR off)
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u163
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http://www.xiaoyu163.com
2 9
8
Model Name Using Similar Mechanism
Tape Transport Mechanism Type
SPECIFICATIONS
Q Q
3
6 7
1 3
1 5
Frequency response (Dolby NR off)
Tape type
Type I tape, Sony Type I
(NORMAL)
Type II tape, Sony Type II
(HIGH)
Type IV tape, Sony Type IV
(METAL)
Inputs
Line inputs (phono jacks)
Sensitivity: 0.16 V
Input impedance: 47 kilohms
STEREO CASSETTE DECK
co
.
9 4
2 8
AEP Model
TC-KE240/RE340
UK Model
E Model
Australian Model
QQ :376315150
2007.05.12
手机:13942296513
NEW
KE240
TCM-230ASV1
RE340
TCM-230ASR4N
0 5
8
2 9
9 4
2 8
30 – 15,000 Hz (±3 dB, IEC),
20 – 16,000 Hz (±6 dB)
30 – 16,000 Hz (±3 dB, IEC),
20 – 17,000 Hz (±6 dB)
30 – 18,000 Hz (±3 dB, IEC),
20 – 19,000 Hz (±6 dB),
30 – 13,000 Hz (±3 dB, –4 dB
recording)
– Continued on next page –
m
9 9
TC-KE240
TC-RE340
9 9

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  • Page 1 Signal-to-noise ratio (at peak level and weighted with Dolby 30 – 13,000 Hz (±3 dB, –4 dB NR off) recording) Type I tape, Sony Type I (NORMAL): 55 dB Type II tape, Sony Type II (HIGH): 57 dB Inputs Type IV tape, Sony Type IV (METAL): 58 dB...
  • Page 2 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 PUB- LISHED BY SONY.

  • Page 3: Table Of Contents

    TC-KE240 ELECTRICAL ADJUSTMENTS UK model 3-042-502-1s ......12 AEP model 3-042-490-0s DIAGRAMS TC-RE340 Australian model 3-042-490-1s 7-1. Note for Printed Wiring Boards and Singapore model 3-042-490-2s Schematic Diagrams ............15 7-2. Printed Wiring Boards – HEAD RELAY (REC/PB)/ LEAF SW (REC/PB) Boards – ........18 7-3.

  • Page 4: General

    M button AUTO REC LEVEL indicator RED LEVEL knob POWER button DIRECTION MODE button RESET button MEMORY button EJECT button x button AUTO CAL button (TC-RE340) X button DOLBY NR knob W button BALANCE knob z button PHONES jack u163 http://www.xiaoyu163.com...

  • Page 5: Disassembly

    http://www.xiaoyu163.com SECTION 3 DISASSEMBLY 3 7 63 1515 0 Note: Follow the disassembly procedure in the numerical order given. CASE (410726) 3 case (410726) 1 two screws (case 3 TP 2) 2 screw (BVTT3 × 6) 1 two screws (case 3 TP 2) L 13942296513 FRONT PANEL SECTION 1 wire (flat type)
  • Page 6 http://www.xiaoyu163.com 3 7 63 1515 0 MECHANISM DECK (TCM-230ASV1: KE240) (TCM-230ASR4N: RE340) 4 mechanism deck (TCM-230ASV1: KE240) (TCM-230ASR4N: RE340) 1 Push the button (eject). 3 four screws (BVTP2.6 × 8) 2 lid (cassette) ass’y L 13942296513 MAIN BOARD 1 connector (CN701) 5 main board 2 screw (BVTP3 ×...
  • Page 7 http://www.xiaoyu163.com 3 7 63 1515 0 CASSETTE HOLDER (L) ASS’Y 2 lever (LOCK L) 1 step screw 7 loading spring (L) q; damper 3 screw (BVTT2 × 4) 9 two screws (BVTT2 × 5) 4 fulcrum plate (L) 6 fulcrum plate (R) 8 cassette holder (L) ass’y 5 screw (BVTT2 ×...
  • Page 8 http://www.xiaoyu163.com 3 7 63 1515 0 PINCH LEVER ASS’Y RE340 2 pinch lever (FWD) ass’y 4 pinch lever (REV) ass’y 3 claw 1 claw L 13942296513 FLYWHEEL ASS’Y 1 belt (FR2) RE340 3 flywheel (FWD) ass’y 6 flywheel (REV) ass’y 7 washer 4 washer u163...
  • Page 9 http://www.xiaoyu163.com 3 7 63 1515 0 MECHANICAL BLOCK ASS’Y (AMS) 2 two screws 2 two screws (BVTT2 × 3.5) (BVTT2 × 3.5) 3 mechanical block ass’y 1 torsion spring (AMS) 4 reverse slider RE340 L 13942296513 HEAD BASE ASS’Y (KE240), HEAD DECK ASS’Y (RE340), HEAD RELAY BOARD 3 tension spring (HEAD) 4 head base ass’y (KE240),...

  • Page 10: Mechanical Adjustments

    http://www.xiaoyu163.com SECTION 4 MECHANICAL ADJUSTMENTS 3 7 63 1515 0 1. Clean the following parts with a denatured-alcohol-moistened swab: record/playback/erase head pinch roller rubber belt capstan idler 2. Demagnetize the playback head with a head demagnetizer. 3. Do not use a magnetized screwdriver for the adjustments. 4.

  • Page 11: Service Mode

    PLAY II IV MPX FILTER C DOLBY NR ∞ – –30 –20 –10 –4 MPX FILTER B DOLBY NR no indication L 13942296513 figure 4 number indication *1) TC-RE340 only ∞ – –30 –20 –10 –4 figure 5 u163 http://www.xiaoyu163.com...

  • Page 12: Electrical Adjustments

    • Counter RESET & MEMORY Function 4. Change the REV playback mode and repeat the steps 1 to 3. [RESET] (1) Press the button to reset the counter. (TC-RE340 only) [REC ] (2) Press the button then the button to starts 5.

  • Page 13: Tc-Ke240

    3 7 63 1515 0 Adjustment Location: record/playback head Bias Consumption Current Adjustment (TC-RE340 only) Procedure: TC-KE240 LINE IN jack (J301) (no signal) digital voltmeter CS-413 blank tape 47 k Ω – adjustment screw TP301 3 2 1 TC-RE340 1.
  • Page 14 Playback Level RV221 (R-CH) Adjustment RV121 (L-CH) Record Level RV201 (R-CH) Adjustment RV101 (L-CH) (TC-KE240) Record Bias RV242 (R-CH) Adjustment RV142 (L-CH) (TC-RE340) TP301 Record Bias RV141 (L-CH) RV301 Adjustment RV241 (R-CH) Tape Speed Adjustment u163 T101 T201 L-CH R-CH...

  • Page 15: Note For Printed Wiring Boards And Schematic Diagrams

    http://www.xiaoyu163.com SECTION 7 DIAGRAMS 3 7 63 1515 0 7-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS Note on Printed Wiring Boards: Note on Schematic Diagram: • X : parts extracted from the component side. • All capacitors are in µF unless otherwise noted. pF: µµF •...
  • Page 16 http://www.xiaoyu163.com 3 7 63 1515 0 • Circuit Boards Location TRANS board LEAF SW board MAIN board POWER SW board DISPLAY board HEAD RELAY board HP board KEY board L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 17 7 Q333 (Collector) (REC mode) 28 Vp-p 6.5 Vp-p 9.8 µ s 580 ms 3 IC331 7, 8, qa, qs, (REC mode) 8 IC801 4 (XIN) (TC-RE340) L 13942296513 2.8 Vp-p 7 Vp-p 330 ns 9.8 µ s 4 Q332 (Base) (REC mode) 3.5 Vp-p...

  • Page 18: Printed Wiring Boards - Head Relay (Rec/Pb)/Leaf Sw (Rec/Pb) Boards

    http://www.xiaoyu163.com TC-KE240/RE340 3 7 63 1515 0 7-2. PRINTED WIRING BOARDS – HEAD RELAY (REC/PB)/LEAF SW (REC/PB) Boards – • See page 16 for Circuit Boards Location. MAIN BOARD CN301 (Page 19) L 13942296513 MAIN BOARD CN302 (Page 19) (PLAY) u163 http://www.xiaoyu163.com...

  • Page 19: Printed Wiring Board - Main Board

    http://www.xiaoyu163.com TC-KE240/RE340 3 7 6 3 1 5 1 5 0 7-3. PRINTED WIRING BOARD – MAIN Board – • See page 16 for Circuit Boards Location. • Semiconductor Location (Page 18) Ref. No. Location (Page 24) (Page 26) D341 D351 D352 D601...

  • Page 20: Schematic Diagram - Main Section (1/2)

    http://www.xiaoyu163.com TC-KE240/RE340 3 7 6 3 1 5 1 5 0 7-4. SCHEMATIC DIAGRAM – MAIN Section (1/2) – • See page 17 for Waveforms. (Page 25) (Page 1 3 9 4 2 2 9 6 5 1 3 (Page w w w u 1 6 3 (Page 21)

  • Page 21: Schematic Diagram - Main Section (2/2)

    http://www.xiaoyu163.com TC-KE240/RE340 3 7 6 3 1 5 1 5 0 7-5. SCHEMATIC DIAGRAM – MAIN Section (2/2) – • See page 27 for IC Block Diagram. (Page 20) 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...

  • Page 22: Printed Wiring Boards - Trans/Power Sw Boards

    http://www.xiaoyu163.com TC-KE240/RE340 3 7 6 3 1 5 1 5 0 7-6. PRINTED WIRING BOARDS – TRANS/POWER SW Boards – • See page 16 for Circuit Boards Location. 1 3 9 4 2 2 9 6 5 1 3 (Page 19) w w w u 1 6 3 http://www.xiaoyu163.com...

  • Page 23: Schematic Diagram - Trans/Power Sw Boards

    http://www.xiaoyu163.com TC-KE240/RE340 3 7 6 3 1 5 1 5 0 7-7. SCHEMATIC DIAGRAM – TRANS/POWER SW Boards – 1 3 9 4 2 2 9 6 5 1 3 (Page 20) The components identified by mark 0 or dotted line with mark 0 are critical for safety.

  • Page 24: Printed Wiring Board - Display Board

    http://www.xiaoyu163.com TC-KE240/RE340 3 7 6 3 1 5 1 5 0 7-8. PRINTED WIRING BOARD – DISPLAY Board – • See page 16 for Circuit Boards Location. (Page 19) 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...

  • Page 25: Schematic Diagram - Display Board

    http://www.xiaoyu163.com TC-KE240/RE340 3 7 6 3 1 5 1 5 0 7-9. SCHEMATIC DIAGRAM – DISPLAY Board – • See page 17 for Waveform. • See page 27 for IC Block Diagram. 1 3 9 4 2 2 9 6 5 1 3 (Page 20) w w w u 1 6 3...

  • Page 26: Printed Wiring Boards - Key/Hp Boards

    http://www.xiaoyu163.com 7-10. PRINTED WIRING BOARDS – KEY/HP Boards – • See page 16 for Circuit Boards Location. TC-KE240/RE340 3 7 6 3 1 5 1 5 0 (Page 19) (Page 19) 1 3 9 4 2 2 9 6 5 1 3 7-11.
  • Page 27 http://www.xiaoyu163.com 3 7 63 1515 0 • IC Block Diagrams IC304 MC14052BCP 2XCOM XCOM IC902 M35500BGP 32 31 30 29 28 27 26 25 24 23 DIG4 L 13942296513 DIG16/SEG9 DIG3 DIGITAL/SEGMENT DIGITAL DIG2 DIG17/SEG8 OUTPUT CIRCUIT OUTPUT CIRCUIT DIG1 SEG7 DIG0 SEG6...

  • Page 28: 7-12. Ic Pin Function Description

    “L”: playback, “H”: recording RECCAL 0 Recording calibration up/down control signal output to the CXA1878Q (IC301) “L”: down, “H”: up (high impedance: off) (TC-RE340 only) TC-KE240: Not used (open) RECCAL 1 GPCAL 0 Equalizer calibration up/down control signal output to the CXA1878Q (IC301) “L”: down, “H”: up (high impedance: off) (TC-RE340 only) TC-KE240: Not used (open)
  • Page 29 M, REC MUTING W (TC-KE240) keys input, (S921 to S923, S925 to S927) x, PAUSE X, AMS M H, m AMS h, REC MUTING W (TC-RE340) keys input System reset signal input from the reset signal generator (IC802) “L”: reset RESET “L”...

  • Page 30: Exploded Views

    http://www.xiaoyu163.com SECTION 8 EXPLODED VIEWS 3 7 63 1515 0 NOTE: • Items marked “*” are not stocked since they • -XX and -X mean standardized parts, so they The components identified by mark 0 or dotted line with mark may have some difference from the original are seldom required for routine service.
  • Page 31 X-4952-829-2 LID (CASSETTE) ASSY (SILVER) 1-769-976-11 WIRE (FLAT TYPE) (13 CORE) TCM-230ASR4N (RE340) 3-042-497-01 WINDOW (METER) 3-022-410-01 DAMPER 4-996-698-41 EMBLEM, SONY 3-019-450-01 PLATE (L), FULCRUM 3-931-429-21 BUTTON (POWER) (BLACK) X-3375-107-1 HOLDER (L) ASSY, CASSETTE (BLACK) 4-227-979-01 BUTTON (POWER) (SILVER) X-4952-717-1 HOLDER (L) ASSY, CASSETTE (SILVER)
  • Page 32 http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 (3) MECHANISM DECK SECTION-1 (4) MECHANISM DECK SECTION-2 (TCM-230ASV1) (KE240) (TCM-230ASR4N) (RE340) M1002 M1002 1 3 9 4 2 2 9 6 5 1 3 not supplied HRPE1 HRPE1 Ref. No. Part No.

  • Page 33: Electrical Parts List

    http://www.xiaoyu163.com HEAD RELAY (REC/PB) SECTION 9 ELECTRICAL PARTS LIST 3 7 63 1515 0 LEAF SW (REC/PB) MAIN NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they DISPLAY, HP, KEY, POWER SW, TRANS parts list may be different from the parts speci- are seldom required for routine service.
  • Page 34 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 DISPLAY, HP, KEY, POWER SW, TRANS Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C148 1-162-306-11 CERAMIC 0.01uF C316 1-126-960-11 ELECT (RE340) (KE240) C149 1-162-280-31 CERAMIC 82PF (KE240) C317 1-126-767-11 ELECT 1000uF C201...
  • Page 35 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 DISPLAY, HP, KEY, POWER SW, TRANS Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < CONNECTOR > * J601 1-764-188-11 JACK (SMALL TYPE) (DIA. 3.5) (CONTROL A1 II (IN)) CN301 1-691-770-11 PLUG (MICRO CONNECTOR) 8P * J602...
  • Page 36 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 DISPLAY, HP, KEY, POWER SW, TRANS Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R110 1-249-426-11 CARBON 5.6K 1/4W R242 1-247-883-00 CARBON 150K 1/4W (KE240) (RE340) R111 1-249-417-11 CARBON 1/4W 0 R243 1-219-153-11 FUSIBLE...
  • Page 37 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 DISPLAY, HP, KEY, POWER SW, TRANS Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R339 1-249-429-11 CARBON 1/4W R377 1-249-434-11 CARBON 1/4W (KE240) (RE340) R340 1-249-385-11 CARBON 1/6W R601 1-249-429-11 CARBON 1/4W (KE240)
  • Page 38 http://www.xiaoyu163.com MAIN 3 7 63 1515 0 DISPLAY, HP, KEY, POWER SW, TRANS Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark S925 1-771-349-21 SWITCH, KEYBOARD (m AMS, h) (RE340) R913 1-249-422-11 CARBON 2.7K 1/4W S926 1-771-349-21 SWITCH, KEYBOARD (REC MUTING W) R914 1-249-424-11 CARBON 3.9K...
  • Page 39 http://www.xiaoyu163.com 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark ************** HARDWARE LIST ************** 7-685-646-79 SCREW +BVTP 3X8 TYPE2 N-S 7-685-871-01 SCREW +BVTT 3X6 (S) 7-685-872-09 SCREW +BVTT 3X8 (S) 7-685-902-21 SCREW +PTPWH 2.6X8 (TYPE2) 7-685-851-09 SCREW +BVTT 2X4 (S) 7-628-254-15 SCREW +PS 2.6X6 7-623-505-01 LUG, 2...
  • Page 40 TC-KE240/RE340 3 7 63 1515 0 L 13942296513 u163 Sony Corporation 9-929-216-11 2000E057570-1 Audio Entertainment Group Printed in Hungary C 2000. 5 Published by HA Quality Assurance Dept. http://www.xiaoyu163.com...

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