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PORTABLE CD PLAYER
DPC-885
SERVICE MANUAL
Front glass
(B10-2397-04)
Cover *
(F07-)
Holder
(J19-5841-03)
[ Format ]
System.....................................................................................................................................Compact disc digital audio system
Laser .............................................................................................................................................................Semiconductor laser
[ Audio ]
Frequency response ..................................................................................................................................20 Hz ~ 20 kHz, ±3 dB
Headphone output (16 Ω, 1 kHz) ........................................................................................................................10 mW + 10 mW
(Headphone output level / impedance .........................................................................................................max. 450 mV / 2.2 Ω)
[For CHINA and Duty Free Shop in JAPAN]
Digital output optical....................................................................................................-21 dBm ~ -15 dBm (wave length 660 nm)
[For other countries]
LINE output level/impedance..................................................................................................................................550 mV/702 Ω
[ Power supply ]
External DC supply....................................................................................................................................................DC 4.5 ~ 6 V
Rechargeable batteries (NB - 130) x 2............................................................................................................................DC 2.4 V
Commercially-available alkaline batteries (LR6/AA) x 2....................................................................................................DC 3 V
Battery life (continuous repeat playback)
(Figures inside parentheses are the values when D.A.S.C. is ON.)
Commercially-available alkaline batteries (LR6/AA) x 2 ..........................................................................Approx. 17.5 (15) hours
Rechargeable batteries (NB-130) x 2.......................................................................................................Approx. 9.0 (8.0) hours
Dimensions (W x H x D) ...................................................................................132mm x 32mm x 153mm (5 - 3/16" x 1 - 1/4" x 6")
Weight (net)................................................................................................................................................................270 g (9.5 oz.)
1. KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without
notice.
Notes
2. Sufficient performance may not be exhibited at extremely cold locations (where water freezes.).
In compliance with Federal Regulations, following are
reproductions of labels on, or inside the product relating to laser
product safety.
Miniature phone jack
(E11-0278-05)

SPECIFICATIONS

KENWOOD-Crop. certifies this equipment conforms to DHHS
Regulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J.
DANGER : Laser radiation when open and interlock defeated.
AVOID DIRECT EXPOSURE TO BEAM
© 1997-9/B51-5352-00 (K/K) 3447
Packing
(G53-0073-04)
Illustration is K type.
* Refer to parts list on page 17.
Electric circuit module
(W02-2527-05)
Cap
(F09-0133-04)
Miniature phone jack
(E11-0371-05)
Cap
(F09-0132-04)

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Summary of Contents for Kenwood DPC-885

  • Page 1: Specifications

    Dimensions (W x H x D) ...................132mm x 32mm x 153mm (5 - 3/16" x 1 - 1/4" x 6") Weight (net)................................270 g (9.5 oz.) 1. KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice.
  • Page 2 DPC-885 CONTENTS/ACCESSORIES CONTENTS SPECIFICATIONS .........Top cover PC BOARD ..............7 CONTENTS/ACCESSORIES ........2 SCHEMATIC DIAGRAM ..........9 CIRCUIT DESCRIPTION ..........3 EXPLODED VIEW .............15 ADJUSTMENT .............6 PARTS LIST...............17 Accessories Stereo headphone....(1) AC adapter ......(1) Remote control......(1) (W01-0923-05) : M2 (W08-0658-05) : E...
  • Page 3: Circuit Description

    DPC-885 CIRCUIT DESCRIPTION 1. Main microprocessor : µPD78063GF-138 (X32-, IC3) 1-1 Microprocessor periphery block diagram IC 6 TRAVERSE UNIT KSM542DBA SHOCK PROOF IC 2 RL5C356 IC 1 CD-DSP+1bitDAC CD-ASP CXD3009Q MECHA. DRIVER CXA1982Q D-RAM IC 3 AUDIO OUTPUT uPD78063GF-138 u-COM...
  • Page 4 DPC-885 CIRCUIT DESCRIPTION 1-3 Pin description microprocessor : µPD78063GF-138 (X32-, IC3) Pin No. Name Function Not used SQCK Clock output for Q-data input of CXD3009Q SDTO DATA input to RL5C356 SDTI DATA output to RL5C356 CLOCK output to RL5C356 –...
  • Page 5 DPC-885 CIRCUIT DESCRIPTION Pin No. Name Function LINE Line out detection terminal HOLD HOLD switch on/off Laser diode output terminal LIDSW Cover open detection switch XWIH Write permission signal output for RL5C356 XEMP Read prohibition signal input for RL5C356 XWRE...
  • Page 6 DPC-885 ADJUSTMENT INPUT OUTPUT PLAYER ALIGNMENT ITEM ALIGN FOR FIG. SETTING SETTING SETTING POINT On the power from Apply the sensor Short the test land. Confirm 0.08 to 0.15 mW, section of optical that the display is when the diffraction LASER –...
  • Page 7 PC BOARD(Component side view) PC BOARD(Foil side view) (X32-3350-01): M2 (X32-3350-01): M2 (X32-3350-10): KPET (X32-3350-10): KPET (X32-3350-21): MX (X32-3350-21): MX Refer to the schematic diagram for the value of resistors and capacitors.
  • Page 8 MECHA ASS’Y(D40-1565-05):KSM-542DBA SPD. MOTOR FCS(+) FOS. COIL SPDL+ FCS(-) SPDL- TRK(+) TRK. COIL TRK(-) SLD. MOTOR SLED- SLED+ SHORT LAND SLTSW LMT. SW (X32-3350-XX) R205 15 14 13 12 11 10 4.7K C214 C213 2.9V IC10(1/2) R128 C128 COMPARATOR 2.5V 22u10 (DEFECT DET.) C202...
  • Page 9 R422 5.7V 2.2V 5.6V LIMITTER 3.1V 5.5V Q40-42 B.BOOST 5.00MHz B.B ON:0V Q47,48 3.1V OFF:2.7V PROTECTION R322 R329 2.7V 2.9V 2.9V AVR R321 4.7K ACADP.5.0V BATT.2.6V BATT.2.3V R342 4.7K R17 10K 12.6V 2.7V 2.7V 5.7V IC11 +2.9V 2.7V R305 C311 4.7K 0.01 VOLUME...
  • Page 10 CAUTION: For continued safety, replace safety critical components only with manufacturer's recommended parts PHONES DPC-885 (X32-335X-XX) R419 10K R423 (refer to parts list). indicates safety critical components. 1.6V DESTINATION C311, Q43, R211, R307,417, UNIT No. C310 Q35,39 Q36,38 R345 For continued protection against risk of fire, replace only...
  • Page 11 DPC-885 EXPLODED VIEW (MECHANISM) AA M2x2.5(BLK) : N09-3425-08 AB M2x8 : N09-3424-08 AC M1.7x1.8 : N39-1718-46 KSM-542DBA Parts with exploded view numbers larger than 700 are not supplied.
  • Page 12 DPC-885 EXPLODED VIEW (UNIT) DC IN OPEN/ CLOSE LINE OUT OPT. OUT PHONE ø2x8 : N09-2866-05 ø1.4x4 : N09-3399-05 ø1.6x3 : N09-2893-05 REMOTE ø2x12 : N09-3397-05 ø1.4x3 : N09-3369-05 DPC-885 Parts with exploded view numbers larger than 700 are not supplied.
  • Page 13 Add- Desti- Ref. No Parts No. Description Ref. No Parts No. Description ress nation marks Parts ress Parts nation marks DPC-885 J19-5842-04 HOLDER J21-6511-04 MOUNTING HARDWARE A02-1361-11 PLASTIC CABINET J21-6512-04 MOUNTING HARDWARE A09-0381-13 BATTERY COVER A10-3380-11 CHASSIS K29-6767-04 KNOB A10-3381-11...
  • Page 14 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 15 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 16 New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Add- Desti- Ref. No Parts No. Description ress Parts nation marks IC11 RN5RG29AA-TR ANALOGUE IC IC12...