Table of Contents
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Service Manual
Contents
Specifications ................................................................... 1
System connections ......................................................... 1
What to do if ..................................................................... 2
Laser beam safety precaution .......................................... 3
CD pick-up maintenance .................................................. 3
CD player adjustments ..................................................... 3
Tape adjustments ............................................................ 4
Tuner adjustments (XE) ................................................... 5
Tuner adjustments (KR & TW) ......................................... 6
(Cabinet & Chassis) ...................................................... 7
(Cabinet & Chassis) ...................................................... 8
(Tape mechanism) ........................................................ 13
(CD mechanism) ........................................................... 14
IC block diagram & description ........................................ 15
FL display description ...................................................... 19
Voltage Table ................................................................... 20
(FRONT for XE) ............................................................ 22
(FRONT for KR & TW) .................................................. 26
XE: This service manual consists of "DC-500U/XE" (Main unit : 129 615 00), "SX-BM500L/ XE" (Speaker system : 165 041 00)
& "SX-BM500R/XE" (Speaker system : 165 042 00).
KR: This service manual consists of "DC-500U/KR" (Main unit : 129 615 01), "SX-BM500L/ KR" (Speaker system : 165 041 01)
& "DC-BM500R/KR" (Speaker system : 165 042 01).
TW: This service manual consists of "DC-500U/TW" (Main unit : 129 615 07), "SX-BM500L /KR" (Speaker system : 165 041 01)
& "DC-BM500R/KR" (Speaker system : 165 042 01).
Micro Component System
ST ANDBY
/ ON
RDSMODE
MEMOR Y
F U L L L O G I C C O N T R O L / A U T O R E V E R S E
FUNCTION
M U L T I F U N C T I O N D I S P L A Y
PTYCHECK /
BASSXPANDER
SOUND PRESET
/
PRESET
PRESET +
M I C R O C O M P O N E N T S Y S T E M
PHONES
FILE NO.
DC-BM500
EJECT
CLOCK/TIME
TUNING +
TUNING -
TUNER/BAND
VOLUME
-
+
PTY SELECT
OPEN/CLOSE
PRODUCT CODE No.
129 614 00 (XE)
129 614 01 (KR)
129 614 07 (TW)
(CD) ............................................................................... 30
(TUNER for XE) ............................................................ 34
(TUNER for KR & TW) .................................................. 38
(AMPLIFIER for XE ) ..................................................... 42
(AMPLIFIER for KR ) ..................................................... 48
(AMPLIFIER for TW ) .................................................... 50
(FRONT for XE) ............................................................ 24
(FRONT for KR) ............................................................ 28
(FRONT for TW) ............................................................ 29
(CD) ............................................................................... 32
(CD TRAY LED & KOUTE) ........................................... 33
(TUNER for XE) ............................................................ 36
(TUNER for KR & TW) .................................................. 40
(POWER AMPLIFIER & PRE AMPLIFIER for XE) ....... 44
................................................................................... 46
(POWER SUPPLY ) ...................................................... 52
REFERENCE No.
(XE)
(KR)
(TW)
SM
5810247
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Table of Contents
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Summary of Contents for Sanyo DC-BM500
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Page 1: Table Of Contents
FILE NO. Service Manual DC-BM500 Micro Component System (XE) (KR) (TW) EJECT ST ANDBY CLOCK/TIME / ON TUNING + RDSMODE MEMOR Y TUNING - F U L L L O G I C C O N T R O L / A U T O R E V E R S E... -
Page 2: Specifications
SPECIFICATIONS Tuner General Reception frequency: Output power ......20 W x 2 FM :87.5 - 108.0 MHz (at 6 ohms, 10% distortion) (XE) AM : 522 - 1710 kHz (TW) Inputs ........VIDEO IN : 500 mV / 50k ohms 522 - 1710 kHz (9 kHz step) (KR) Outputs ........ -
Page 3: System Connections
SYSTEM CONNECTIONS (KR & TW) VIDEO (AUDIO) LOOP SPEAKERS MIN.) FM 75 RESET SPEAKERS MIN.) WHAT TO DO IF If the operation of the unit or display is not normal, even though the appropriate buttons have been pressed. Disconect the power cord from the AC outlet, then press "RESET" (rear of the unit) for at least 30 seconds. -
Page 4: Laser Beam Safety Precaution
Clean a lens with swab of the cotton which moistened it with alcohol, cleaning paper or cleaning disc appointed. Specified cleaning disc : LC-1 (Part code : 645 026 1961 ..manufactured by SANYO.) Show a clean procedure in the following in reference by swab of cotton. -
Page 5: Tape Adjustments
CD PLAYER ADJUSTMENTS (2) Checking the "eye" pattern (RF) 1. Switch "ON" the POWER. OSCILLOSCOPE 2. Connect an oscilloscope to TP1 (RF) and TP4 (VC). 3. Load the test disc. (VC) 4. Press the PLAY button. 5. Check to be sure that the "eye" pattern is at the center of waveform and that the diamond shape is clearly defined. -
Page 6: Tuner Adjustments (Xe)
TUNER ADJUSTMENTS (XE ONLY) • Use a plastic screw driver for adjustments. • MODE : ST (Stereo) • Speaker impedance : 6 ohm • TUNING FM : 87.5 - 108MHz, 50KHz MW: 522 - 1611 kHz, 9 kHz step 520 - 1611 kHz, 9 kHz step LW: 144 - 288 kHz, 9 kHz step Antenna : 75 unbalanced , Modulation : 1 kHz... -
Page 7: Tuner Adjustments (Kr & Tw)
TUNER ADJUSTMENTS (For KR & TW) • Use a plastic screw driver for adjustments. • MODE : ST (Stereo) • Speaker impedance : 6 ohm • TUNING FM : 87.5 - 108MHz, 50KHz step AM: 522 - 1710kHz (TW) 522 - 1710KHz (9KHz step) (KR) 520 - 1710KHz (10KHz step) (KR) Antenna : 75 unbalanced , Modulation : 1 kHz... -
Page 8: Exploded View (Cabinet & Chassis)
EXPLODED VIEW (CABINET & CHASSIS) N.S.P : Not supplied as service parts. - 7 -... -
Page 9: Parts List (Cabinet & Chassis)
PARTS LIST PRODUCT SAFETY NOTICE EACH PRECAUTION IN THIS MANUAL SHOULD BE FOLLOWED DURING SERVICING. COMPONENTS IDENTIFIED WITH THE IEC SYMBOL IN THE PARTS LIST AND THE SCHEMATIC DIAGRAM DESIGNATED COMPONENTS IN WHICH SAFETY CAN BE OF SPECIAL SIGNIFICANCE. WHEN REPLACING A COMPONENT IDENTIFIED BY , USE ONLY THE REPLACEMENT PARTS DESIGNATED, OR PARTS WITH THE SAME RATINGS OF RESISTANCE, WATTAGE OR VOLTAGE THAT ARE DESIGNATED IN THE PARTS LIST IN THIS MANUAL. - Page 10 PARTS LIST ELECTRICAL PARTS REF.NO. PART NO. DESCRIPTION REF.NO. PART NO. DESCRIPTION S6114 614 220 5471 SWITCH,TACT 645 050 3788 FLEXIBLE FLAT CABLE, 614 240 1002 SWITCH,TACT FRONT TO AMP 645 006 5958 SWITCH,PUSH 1P-1T 614 320 3292 ASSY,WIRE,AMP TO DECK MOTOR S6115 614 220 5471 SWITCH,TACT 614 310 8887 SPACER,RUBBER,POWER IC...
- Page 11 PARTS LIST PRE AMPLIFIER P.W.BOARD ASSY REF.NO. PART NO. DESCRIPTION 405 141 3307 TR KTC3198-GR REF.NO. PART NO. DESCRIPTION Q4930 405 155 0002 TR MPSA56 614 318 5109 ASSY,PWB,PRE AMP(Only Initial) (XE) Q4931 405 143 0007 TR KRC107M 614 319 1490 ASSY,PWB,PRE AMP(Only Initial) 405 000 3806 TR DTC114YS (KR, TW) Q4940...
- Page 12 PARTS LIST REF.NO. PART NO. DESCRIPTION REF.NO. PART NO. DESCRIPTION D2103 407 012 4406 DIODE 1SS133 Q4211 405 019 3804 TR 2SC536-G-NP D2104 407 012 4406 DIODE 1SS133 405 019 2708 TR 2SC536-F-NP D2151 407 012 4406 DIODE 1SS133 405 141 3208 TR KTC3198-Y D2153 407 105 1602 VARACTOR DI SVC342M-V 405 141 3307 TR KTC3198-GR...
- Page 13 PARTS LIST REF.NO. PART NO. DESCRIPTION REF.NO. PART NO. DESCRIPTION Q2452 405 036 3702 TR 2SA1564 405 078 2404 TR BN1A4P 405 151 5209 TR KRA107M Q2900 405 019 3804 TR 2SC536-G-NP 405 000 0904 TR DTA114YS 405 019 2708 TR 2SC536-F-NP 405 078 2404 TR BN1A4P 405 141 3208 TR KTC3198-Y Q2453...
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Page 14: Tape Mechanism
PARTS LIST REF.NO. PART NO. DESCRIPTION CN403 645 006 4760 HOLDER,FUSE,FUSE HOLDER 645 031 7903 HOLDER,FUSE,FUSE HOLDER CN411 614 320 3346 ASSY,WIRE,DG-POWERAMP 3P (XE) CN412 614 320 3353 ASSY,WIRE,DG-POWERAMP 5P D4010 407 148 6701 DIODE 1A3-I (XE) D4011 407 148 6701 DIODE 1A3-I (XE) D4012 407 148 6701 DIODE 1A3-I (XE) D4013... -
Page 15: (Cd Mechanism)
EXPLODED VIEW (CD MECHANISM) PM01 PM25 PM02 PM26 PM25 PM25 PM04 PM27 PM26 PM26 PM05 PM25 PM27 PM27 PM26 PM03 PM27 PM04 PM05 PM06 PM07 PM08 PM14 PM09 PM15 PM10 PM16 PM11 PM17 PM30 PM18 PM12 PM13 PM24 PM19 PM20 PM21 PM28 PM22... -
Page 16: Ic Block Diagram & Description
IC BLOCK DIAGRAM & DESCRIPTION IC101 LA9241ML (Servo Signal Processor) IC132 LB1641L (Bidirectional Motor Driver) Vcc1 BH1 PH1 LF2 VR REF1 Vcc2 DRF CE DAT CL CLK 54 53 VCC2 OUT2 RF DET INTER FACE FIN2 PRE- FIN1 DRIVE OUT1 DGND RFS- RF Amp... - Page 17 IC BLOCK DIAGRAM & DESCRIPTION IC460 AN7348K ( Play/Rec Pre Amp) IC470 BA7755A (Head Switch) A/Rec Mute PB Amp(L) Nor/Cro Amp(L) & Hi/Lo Logic PB Amp(R) Amp(R) A/Rec Mute HEAD CTRL1 Ripple CTRL2 Logic Rejection SWITCH Logic Rec/PB IC450 LC75342M (2 band equalizer) IC440 TDA7265 (Stereo Amplifier) LSELO LIN LTRE LBASS1 LBASS2...
- Page 18 IC BLOCK DIAGRAM & DESCRIPTION IC102 LC78622NE (Digital Signal Processor) No. Pin Name I/O Function No. Pin Name I/O Function TEST3 I Test pin. DEFI I Input terminal for detect signal of defect TEST4 I Test pin. I Input terminal for test. O The phase comparison output terminal for - Non connection.
- Page 19 IC BLOCK DIAGRAM & DESCRIPTION IC601 LC866540A-5Y58(XE,KR)5Y89(TW) (Micro Processor) Pin No Pin Name Symbol Function Pin No Pin Name Symbol Function 1 P06 AMBER_LED Output 51 S21/PC5 LCD Pin No14 AMBER_LED 52 S22/PC6 LCD Pin No15 2 P07 DSP Reset Signal DSP_RESET 53 S23/PC7 LCD Pin No16...
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Page 20: Fl Display Description
FL DISPLAY DESCRIPTION FL601 PIN No. CONNECTION P16 P15 PIN No. CONNECTION P14 P13 P12 P11 (2G~9G) - 19 -... -
Page 21: Voltage Table
VOLTAGE TABLE IC101 LA9241M (64PIN) UNIT:V VOL(V) 2.53 2.53 2.55 2.55 2.54 2.54 2.53 2.54 2.53 2.54 2.53 2.53 2.54 2.52 2.54 2.63 VOL(V) 2.54 2.52 2.54 2.46 2.46 2.46 2.54 2.54 2.54 2.64 2.31 4.97 0.75 VOL(V) 0.03 0.06 0.53 2.35 2.45... - Page 22 VOLTAGE TABLE IC601 LC866540A-5Y89 (100PIN) (for XE) UNIT:V VOL(V) 0.48 4.85 0.01 4.78 4.77 2.41 2.47 2.11 2.38 4.78 VOL(V) 4.87 4.87 2.44 4.84 4.86 -25.47 VOL(V) -25.45 -25.45 -25.45 -25.45 -25.45 -25.46 -25.45 -25.46 -25.49 4.78 -28.31 -11.65 -24.91 -21.6 -28.31 -18.2...
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Page 23: Schematic Diagram (Front For Xe)
SCHEMATIC DIAGRAM (FRONT for XE) This is a basic schematic diagram. - 22 - - 23 -... -
Page 24: (Front For Kr & Tw)
SCHEMATIC DIAGRAM (FRONT for KR & TW) This is a basic schematic diagram. - 26 - - 27 -... - Page 25 SCHEMATIC DIAGRAM (CD) PRODUCT SAFETY NOTICE Each precaution in this manual should be followed during servicing. Components identified with the IEC symbol ! ! ! in the parts list and the schematic diagram designated components in which safety can be of special significance.
- Page 26 WIRING DIAGRAM (CD TRAY LED & KOUTE) CD TRAY LED P.W.BOARD KOUTE P.W.BOARD - 33 -...
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Page 27: (Tuner For Xe)
SCHEMATIC DIAGRAM (TUNER for XE) PRODUCT SAFETY NOTICE Each precaution in this manual should be followed d u r i n g s e r v i c i n g . Components identified with the IEC symbol ! ! ! in the parts list and the schematic d i a g r a m d e s i g n a t e d... -
Page 28: (Tuner For Kr & Tw)
SCHEMATIC DIAGRAM (TUNER for KR & TW) This is a basic schematic diagram. - 38 - - 39 -... -
Page 29: (Amplifier For Xe )
SCHEMATIC DIAGRAM (AMPLIFIER for XE) PRODUCT SAFETY NOTICE Each precaution in this manual should be followed d u r i n g s e r v i c i n g . Components identified with the IEC symbol ! ! ! the parts list and the s c h e m a t i c d i a g r a m designated components in... -
Page 30: (Amplifier For Kr )
SCHEMATIC DIAGRAM (AMPLIFIER for KR) PRODUCT SAFETY NOTICE Each precaution in this manual should be followed d u r i n g s e r v i c i n g . Components identified with the IEC symbol ! ! ! in the parts list and the schematic d i a g r a m d e s i g n a t e d... -
Page 31: (Amplifier For Tw )
SCHEMATIC DIAGRAM (AMPLIFIER for TW) PRODUCT SAFETY NOTICE Each precaution in this manual should be followed d u r i n g s e r v i c i n g . Components identified with the IEC symbol ! ! ! in the parts list and the schematic d i a g r a m d e s i g n a t e d... - Page 32 WIRING DIAGRAM (POWER SUPPLY) POWER SUPPLY P.W.BOARD for XE POWER SUPPLY P.W.BOARD for KR POWER SUPPLY P.W.BOARD for TW - 52 -...
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Page 33: Wiring Connection
(6P) CN470 CN460 (10P) (28P) CN481 CN645 (2P) (10P) PHONES CD TRAY LED P.W.B CN604 (2P) CN612(12P) FL601 CN601 CN613 (28P) (6P) FRONT P.W.B TAPE MECHANISM SANYO Electric Co., Ltd. Nov./ '01 / 180 BB Printed in Japan Osaka, Japan... -
Page 34: Wiring Diagram (Front For Xe)
WIRING DIAGRAM (FRONT for XE) - 24 - - 25 -... -
Page 35: (Front For Kr)
WIRING DIAGRAM (FRONT for KR) - 28 -... -
Page 36: (Front For Tw)
WIRING DIAGRAM (FRONT for TW) - 29 -... - Page 37 WIRING DIAGRAM (CD) - 32 -...
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Page 38: (Tuner For Xe)
WIRING DIAGRAM (TUNER for XE) - 36 - - 37 -... -
Page 39: (Tuner For Kr & Tw)
WIRING DIAGRAM (TUNER for KR & TW) - 40 - - 41 -... -
Page 40: (Power Amplifier & Pre Amplifier For Xe)
WIRING DIAGRAM (POWER AMPLIFIER & PRE AMPLIFIER for XE) POWER AMPLIFIER P.W.BOARD PRE AMPLIFIER P.W.BOARD - 44 - - 45 -... -
Page 41: (Power Amplifier & Pre Amplifier For Kr & Tw )
WIRING DIAGRAM (POWER AMPLIFIER & PRE AMPLIFIER for KR & TW) POWER AMPLIFIER P.W.BOARD PRE AMPLIFIER P.W.BOARD - 46 - - 47 -...