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MDX-C5960R/C5970/C5970R
SERVICE MANUAL German Model
MDX-C5960R
US Model
Canadian Model
E Model
MDX-C5970
AEP Model
UK Model
MDX-C5970R
Photo: MDX-C5960R
Model Name Using Similar Mechanism MDX-C7900/C7900R
Base Mechanism Type MG-164N-138
Optical Pick-Up Name KMS-241B/J1NP
SPECIFICATIONS
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FM/AM (MW/LW) MINIDISC PLAYER
MICROFILM
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NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electro- static break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care. NOTES ON LASER DIOD
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TABLE OF CONTENTS 1. GENERAL Location of controls ........................................................ 4 Resetting the unit ............................................................ 5 Detaching the front panel................................................ 5 Labelling the rotary commander..................................... 5 Using the rotary commander .......................................... 5 Adjusting the sound characterisitics ............................... 5 Attenuating the so
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SECTION 1 This section is extracted from instruction manual. GENERAL – 4 –
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SECTION 2 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. SUB PANEL 2 sub panel 1 five screws (PTT2.6 × 6) 1 screw (PTT2.6 × 6) MECHANISM DECK (MG-164N-138) 1 two screws (PTT2.6 × 4) 3 mechanism deck (MG-164N-138) 2 connector (CN200) – 10 –
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MAIN BOARD, HEAT SINK 5 eight screws (PTT2.6 × 10) 2 three screws (PTT2.6 × 6) (ground point) 1 two screws (PTT2.6 × 10) 6 heat sink 3 main board 4 insulating sheet SERVO BOARD 2 two screws (BVTT2 × 4) 2 two screws (BVTT2 × 4) 3 servo board 1 sensor flexible board (CN102) 1 flexible board (CN103) – 11 –
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MD COVER ASS’Y 1 four screws (B2 × 3) 3 MD cover ass’y shaft (MD cover guide) cassette holder A 2 Pushing the Cassette Holder toward the direction A with a screwdriver, etc., disengage the Shaft (MD Cover Guide) from the slot in the MD Cover Assy. Note: Take care not to scratch the optiocal Pick-up when pushing the Cassette Holder with a screwdriver. etc. FLOAT BLOCK 3 Pushing an arrow A part, raise the float block up ward at the front to release a lock. 1 tension spring (FL2) A float block
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LO MOTOR ASS’Y (LOADING) (M903) 4 Remove the bracket (LO) in the direction of the arrow A. A 5 LO motor ass’y (loading) 1 Remove solders of motor (M903) (M903) 2 tension spring (rack) 3 claw LEVER (LE) ASS’Y 2 stopper washer 2 lever (LE) ass’y 3 roller (GLE) 1 – 13 –
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HOLDER ASS’Y 4 Remove the holder ass’y in the direction of the arrow. 2 type-E stopring 1.5 1 spring (CHKG) 2 type-E stopring 1.5 2 type-E stopring 1.5 3 lever (lock R) 3 lever (lock L) 1 spring (CHKG) 2 type-E stopring 1.5 CHUCKING ARM ASS’Y 1 Remove the chucking arm ass’y in the direction of the arrow. holder ass’y – 14 –
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OPTICAL PICK-UP (KMS-241B/J1NP) 4 screw (B2 × 3) 6 bearing (SL) 5 feed screw ass’y 7 optical pick-up (KMS-241B/J1NP) 3 screw (K2 × 3) 1 two screws (K2 × 3) 2 shaft (SL2) SL MOTOR ASS’Y (SLED) (M902), SP MOTOR ASS’Y (SPINDLE) (M901) 4 screw (P1.7 × 1.8) 9 two screws (P1.7 × 1.8) 5 bracket (SL) 2 two screws (2 × 8) 6 SL motor ass’y (sled) (M902) !¼ retainer (SP) 7 screw 3 sensor board (B2 × 3) !Á SP motor ass’y 8 base (SL) (spindle) (M901) 1 Remove solders of motors (M901, M902) – 15 –
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SECTION 3 ELECTRICAL ADJUSTMENTS TEST MODE 3. Adjust with the volume RV2 on TU1 so that the “FM” indica- This set have the test mode function. In the test mode, FM Auto tion turns to “FM0” indication on the display window. Scan/Stop Level and AM (MW) Auto Scan/Stop Level adjustments But, in case of already indicated “FM0”, turn the RV2 so that can be performed easier than it in ordinary procedure. put out light “0” indication and adjustment. Display 1. Turn ON the regulat
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AM (MW) Auto Scan/Stop Level Adjustment RDS S-Meter Adjustment (MDX-C5960R/C5970R) Adjustment Location: Setting: Setting: – SET UPPER VIEW – [MODE] button (MDX-C5970): AM [SOURCE] button: FM [MODE] button (MDX-C5960R/C5970R): MW FM RF signal FREQUENCY SELECT switch: AM 10 k (E model) generator antenna jack (J1) 15 pF 0.01 μF 30 Ω set RV1 RDS S-Meter Adjustment (MDX-C5960R/C5970R) 65 pF Carrier frequency: 98.0 MHz Output level : 35 dB (56.2 μV) AM RF signal Mode : mono TU1 generator Modulation
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MDX-C5960R/C5970/C5970R SECTION 4 DIAGRAMS 15 IC301 (1/2) 4-1. BLOCK DIAGRAM – SERVO Section – TX • SIGNAL PATH EFMO ADDT 100 23 : MD PLAY FILI DIGITAL SIGNAL PROCESSOR, 59 EFM/ACIRC ENCODER/DECODER, PCO 58 SHOCK PROOF MEMORY CONTROLLER, PLL CLTV 61 SAMPLING ATRAC ENCODER/DECODER, 2M BIT D-RAM FILO RATE IC301 (1/2) 60 CONVERTER RF AMP, FOCUS/TRACKING ERROR AMP DIN IC302 DIGITAL 21 48 47 DOUT ASYO AUDIO 51 22 INTERFACE (Page 23) ASYI 52 I I DADT DADT, BCK, LRCK, FS256 COMPA- RFO AGCI RF 1 24 R
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MDX-C5960R/C5970/C5970R 4-2. BLOCK DIAGRAM – TUNER Section – FM B+ AM B+ TUNER B+ FM/AM TUNER UNIT TU1 J1 8 10 9 (FM/AM ANTENNA) FM 2 FM-ANT FM-LCH 18 (Page 23) E 1 AM-ANT FM-RCH 16 R-CH MUTING Q101 AM AM-DET (Page 23) 12 F 4 5 6 21 13 11 20 22 19 23 R-CH D5 MUTING CONTROL SWITCH (C5960R/C5970R) Q103 (C5960R/C5970R) RV1 FM RDS S-METER BUFFER AM OSC Q50 BUFFER B+ SWITCH Q4 BACKUP +5V FILTER Q51 FM B+ (C5970) 14 7 5 1 2 3 28 15 14 24 25 RDS DECODER FM/AM SIGNAL 5 IC102 SIGNAL METER BUFFER QUALIT
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MDX-C5960R/C5970/C5970R 4-3. BLOCK DIAGRAM – MAIN Section – • SIGNAL PATH : MD PLAY CNP300 (1/2) (L) : FM BUS INPUT SELECT, AUDIO IN : AM (MW/LW) ELECTRICAL VOLUME R-CH (R) IC300 : BUS AUDIO IN CNP300 (2/2) DADT, BCK, LOUDNESS VOLUME TONE OUT FL PDL SOFT LRCK, 11 CONTROL CONTROL CONTROL FADER 22 (L) MUTE VOUTL FRONT FS256 DATA SE2L CIRCUIT CIRCUIT CIRCUIT DADT (Page 20) 5 12 12 LINE OUT A MUTING BCK BCK INPUT DIGITAL NOISE SE1L 6 Q301 D/A INTERFACE FILTER SHAPER 1 (C5970/C5970R) LRCK LRCK LOU
