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MDX-C6400R/C6500R/C6500RX
SERVICE MANUAL AEP Model
MDX-C6400R/C6500R/C6500RX
Ver 1.2 2001.12
UK Model
MDX-C6500R/C6500RX
Photo: MDX-C6500R
Model Name Using Similar Mechanism NEW
Base Mechanism Type MG-164NZ-138
Optical Pick-up Name KMS-241C
SPECIFICATIONS
MD player section General
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Signal-to-noise ratio 90 dB Outputs Audio outputs*
Frequency response 10 – 20,000 Hz Power aerial relay control
Wow and flutter Below measurable limit lead
Power amplifier control
lead
Tuner section
Telephone ATT co
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TABLE OF CONTENTS NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT 1. GENERAL The laser diode in the optical pick-up block may suffer electro- Location of controls ........................................................ 3 static break-down because of the potential difference generated Installation ....................................................................... 4 by the charged electrostatic load, etc. on clothing and the human Connections ..............................
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+ T S P R R P S T - - - + D I C S S SECTION 1 This section is extracted from instruction manual. GENERAL Location of controls Setting the clock The clock uses a 24-hour digital indication. Example: To set the clock to 10:08 1 Press (MENU), then press either side of OPEN (DISC/PRST) repeatedly until “CLOCK” PTY DSPL appears. D-BASS MENU LIST TA -SEEK/AMS SOURCE AF SOUND ENTER REP SHUF MODE 1 2 3 4 56 OFF 1 Press (ENTER). MDX-C6500RX/C6500R /C6400R The hour indication flashes. Refer to the pages
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SECTION 2 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. SUB PANEL ASS’Y 1 screw (PTT2.6 × 5) 2 cover 4 two claws 5 sub panel ass’y 3 screw (PTT2.6 × 8) 4 claw 3 two screws (PTT2.6 × 8) 6 flexible flat cable (CNP811) 3 screw (PTT2.6 × 8) MECHANISM DECK (MG-164NZ-138) 3 two screws (PTT2.6 × 5) 4 bracket (MD) 5 mechanism deck (MG-164NZ-138) 1 screw 2 connector (PTT2.6 × 5) (CN101) 1 screw (PTT2.6 × 5) 9
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SERVO BOARD 2 two screws (BVTT2 × 4) 2 two screws (BVTT2 × 4) 3 servo board 1 sensor flexible board (CN102) 1 flexible board (CN103) MAIN BOARD 1 three ground point screws 2 three screws (PTT2.6 × 10) 3 main board 10
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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 in the direction of the arrow 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. HEAT SINK 2 two screws 1 three screws (PTT2.6 × 12) (PTT2.6 × 10) 1 screw (PTT2.6 × 10) C6500R/C6500RX 3 heat sink 1 two screws
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FLOAT BLOCK 3 Pushing an arrow A part, raise the float block up ward at the front to release a lock. 1 tension spring (FLOAT B) A float block lever (lock R) lever (lock L) 1 tension spring (FLOAT B) 2 two tension springs (FLOAT F) 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 bracket (LO) – bottom view – 12
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LEVER (LE) ASS’Y 2 stopper washer 2 lever (LE) ass’y 3 roller (GEAR E) 1 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 13
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CHUCKING ARM ASS’Y 1 Remove the chucking arm ass’y in the direction of the arrow. holder ass’y OPTICAL PICK-UP (KMS-241C/J1NP) 4 screw (B2 × 3) 6 bearing (SL) 5 feed screw ass’y 7 optical pick-up (KMS-241C/J1NP) 3 screw (K2 × 3) 1 two screws (K2 × 3) 2 guide shaft (OPT L) 14
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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) 0 bracket (SP) 7 screw 3 sensor board (B2 × 3) qa 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 This set have the test mode function. 1. Turn ON the regulated power supply. (The clock is displayed) Note: Press the [OFF] button, if the clock is not displayed. 2. Push the preset [4] button. 3. Push the preset [5] button. 4. Press the preset [1] button for more than two seconds. 5. Then the display indicates all lights, the test mode is set. 1. Push the [OFF] button. MD SECTION MD section adjustments ar
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MDX-C6400R/C6500R/C6500RX 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 19) ASYI 52 I I DADT DADT, BCK, LRCK, FS256 COMPA- RFO AGCI RF 1 24
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MDX-C6400R/C6500R/C6500RX 4-2. BLOCK DIAGRAM – TUNER Section – BU B+ TUNER +8.7V TUNER +5.6V FM/AM TUNER UNIT TU1 J1 11 5 16 (FM/AM ANTENNA) MPX 2 ANT-FM MPX 10 (Page 19) E 1 ANT-AM MUTING Q111 AM (Page 19) AM-DET 8 F 17 18 4 14 9 12 13 19 MUTING Q121 MUTING CONTROL SWITCH Q131 D131 IF-AM (Page 19) G DATA, CLOCK (Page 19) I RDS DECODER 5 IC51 SIGNAL QUALITY DECODER 4 SC SDA 57 kHz OUT RDS/RDBS IIC BUS CIN 9 CLOCKED INTERFACE 16 BAND-PASS 18 19 DEMODULATOR SLAVE SCL COMPARATOR REGISTER 10 MPX F
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MDX-C6400R/C6500R/C6500RX 4-3. BLOCK DIAGRAM – MAIN Section – (L) CNJ151 (1/2) INPUT SELECT, BUS ELECTRICAL VOLUME, FM MPX AUDIO IN IC151 (R) R-CH DADT, CNJ151 (2/2) BCK, FD1L LOUDNESS/ SOFT TONE LRCK, 3 VOUTL VOLUME MUTE CONTROL FS256 DADT DATA SEL OUTLF (Page 17) 5 12 1 30 (L) A MONO MIXER BCK BCK AM OUTLR FADER 6 11 29 VOUTR MUTING LRCK LRCK AUDIO OUT 4 9 R-CH MUTE LOUDNESS Q171 FRONT R-CH (R) (C6500R, C6500RX) MUTING Q271 FS256 XTI CLK MODE AMIF AM/FM 12 1 AUDIO OUT CONTROL CONTROL NOISE (
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MDX-C6400R/C6500R/C6500RX 4-4. BLOCK DIAGRAM – BUS CONTROL/POWER SUPPLY Section – REMOTE CONTROL CN701 MASTER CONTROLLER RECEIVER BUS CONTROL IN IC501 (3/3) IC951 (FOR SONY BUS) D708 CN601 (2/2) 3 SIRCS BUFFER SIRCS 24 SIRCS (POWER CONNECTOR) Q704 D673 6 ANT-R RESET SIGNAL D674 BU B+ GENERATOR 90 RSTX AMP-R IC652 86 HSTX 5 6 SW503 AMP+B BACK-UP B+ RESET 8 ANT+B POWER AMP D301 (IC611) B+ REGULATOR SONY BUS INTERFACE IC671 IC701 TUNER +8.7V 11 TU8.7V VCC 7 D2 2 RST RST RESET TUNER +5.6V TU5.6V
