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Kenwood DM-S500 Service Manual
Kenwood DM-S500 Service Manual

Kenwood DM-S500 Service Manual

Mini disc recorder
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MINI DISC RECORDER
DM-S500
SERVICE MANUAL
Indicator
(B12-0329-04)
ON/STANDBY
Knob
(K29-6835-12)
Miniature phone jack
(E11-0188-05)
SYSTEM
CONTROL
Optic receiving module
(W02-1181-05)
In compliance with Federal Regulations, following are reproduc-
tions of labels on, or inside the product relating to laser product
safety.
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
Dressing panel
Dressing panel
(A21-3622-03)
(A21-3620-02)
TIME
DISPLAY
MINI DISC RECORDER DM-S500
REC
REC
÷REC
LEVEL
INPUT
Knob
Front glass
(K29-6835-12)
(B10-2386-12)
LINE
DIGITAL IN
REC
PLAY
OPTICAL
IN
OUT
L
L
1
2
R
R
Phono jack
(E68-0120-05)
© 1997-11/B51-5398-00 (K/K) 2456
Dressing panel
(A21-3623-03)
0
1
¡
8
Dressing panel
Panel *
(A21-3621-03)
(A60-)
Metallic cabinet
(A01-3444-01)
* Refer to parts list on page 25.
Refer to DM-SE7/SE9 (B51-5395-00) and
DM-5090/9090 (B51-5387-00) service manu-
als if require circuit description.
Knob
(K29-6945-04)
4
¢
7
3
Knob
(K29-6835-12)
Power cord bushing
(J42-0083-05)
AC power cord *
(E30-)

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Summary of Contents for Kenwood DM-S500

  • Page 1 DM-5090/9090 (B51-5387-00) service manu- als if require circuit description. 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...
  • Page 2: Table Of Contents

    DM-S500 CONTENTS / ACCESSORIES / CAUTIONS Contents CONTENTS / ACCESSORIES / CAUTIONS....2 SCHEMATIC DIAGRAM ..........13 CONTROLS ..............3 EXPLODED VIEW .............23 ADJUSTMENT ............5 PARTS LIST...............25 PC BOARD ............... 10 SPECIFICATIONS ........Back cover Accessories Audio cord (2) System control cord (1)
  • Page 3: Controls

    Peak level indicator Play indicator Character information display Display For U.S.A. and Canada ¢ SHUTTLE TIME DISPLAY POWER MINI DISC RECORDER DM-S500 ON/STANDBY ON/STANDBY ¡ LEVEL INPUT ÷REC 8 9 0 8 REC LEVEL keys 1 ON/STANDBY ( ) key This key is used to adjust the recording level.
  • Page 4 Rec icon (¶) (optional) or receiver (optional) is the “GRC-100” or “GRC- This icon is used for recording. 150”, the DM-S500 unit should be controlled using the PGM icon remote control unit provided with this unit. This icon is used for program playback.
  • Page 5: Adjustment

    DM-S500 ADJUSTMENT 1. Test mode of the unit 1. Test mode of the unit 1-1 Setting of the test mode 2-3 Basic operation in test mode While pressing the [STOP] key, plug the AC power cord All operations are performed using the SHUTTEL (up/down), PLAY key and STOP key.
  • Page 6 DM-S500 ADJUSTMENT Note: Numerals on the display appear the error rate and 2-5 Other key function ADIP error. Function Description Plays back continuously when this key is pressed during 3. Terminating the continuous playback mode stop. Turn on and off the tracking servo when it is (1) Press the STOP key.
  • Page 7 DM-S500 ADJUSTMENT 2) In the test mode, perform the adjustment. After adjust- Adjustment : ment is completed, cancel the test mode. 1. Put the laser power meter on the objective lens of the optical pick-up. Connect the digital voltmeter to TP1 and...
  • Page 8 DM-S500 ADJUSTMENT 4. Press the PLAY key to display “EFBAL MO-W” and after 11. Press the PLAY key to display “EFB=##XSA” that press the PLAY key again to display momentarily and save the adjustment result in "EF=$##MOW". nonvolatile memory. After that, “EFBAL CHAN” is 5.
  • Page 9 DM-S500 ADJUSTMENT 7. Turn the SHUTTLE clockwise and detect the focus bias 3-8 Error rate confirmation value in which the C1 error rate becomes 220. 3-8-1 CD error rate confirmation 8. Press the PLAY key to display “b=## ####/”. Confirmation : 9.
  • Page 10: Pc Board

    PC BOARD(Component side view) MD MECHANISM UNIT MD CONTROL UNIT Refer to the schematic diagram for the value of resistors and capacitors.
  • Page 11 PC BOARD(Component side view) X14 E/5 X14 D/5 X14 B/5 (RED) (YEL) MTYPE AC115V AC230V (BLU) AC110-120V AC220-240V X14 C/5 X14-4702-70 A/5 Refer to the schematic diagram for the value of resistors and capacitors.
  • Page 12 4.7K < > RECORD 0V(0.3V) MEASUREMENT IMPOSSIBLE <0.3V> H+5V H+5V CN106 PLAYBACK DOUT PLAYBACK(DIGITAL OUTPUT) RECORD 3.0V RECORD(DIGITAL INPUT) C196 512FS GND LINE HGND +B LINE 5.1V -B LINE DM-S500(K) (1/3) M+5V C160 DM-S500 10u10 H+5V H+5V H+5V H+5V Y22-7501-00...
  • Page 13: Schematic Diagram

    (X25-6012-72) (A/3) H+5V H+5V H+5V H+5V H+5V H+5V 10 11 12 15 16 17 18 19 21 22 23 H GND IC26 BUFFER 512fs 1.1V R232 1.6V 100K C264 0.01 D OUT R235 5.1V H+5V 2.5V C263 0.01 3.4V 5.2V D IN 5.2V 5.2V...
  • Page 14 IC23 : TA8409S Q33,36 : UN5212 or DTA144EUA IC24,26 : TC74HCT7007AF DTC124EUA DTC114YUA IC25 : HD74HCT126FPEL : 2SA1048(Y,GR) or IC27 : TC74VHC125F 2SA1309A(Q,R) DTC143TU TC7SU04F LM431AIZ UN5216 D20-22,24-30, 501,502 : MA111 2SA1586 CXD2652AR 2SC4116 SYSTEM CONTROL DM-S500 DM-S500 (2/3) Y22-7501-00...
  • Page 15 (X25-6012-72) (B/3) X25-A/3 +7.5V +7.5V -CN3 R126 -6.5V -6.5V -6.5V IC3(1/2) VOLUME 7.5V 10u25 5.1V R11 2.7K R106 H+5V H+5V H.GND ADDT R12 2.7K 5.2V 10u25 X25-A/3 VLDATA -CN2 U.GND IC3(2/2) DOUT R117 OCLK -6.5V -6.5V VLLAT F.OFF M GND DARST C109 10u25...
  • Page 16 +B LINE -B LINE REMOTE SENSOR -50V R38 2.2 1/4W DM-S500 (3/3) R39 2.2 1/4W (X14- ) (B/5) CAUTION: For continued safety, replace safety critical components only with The DC voltage is an actual reading measured with a high impedance KAN03...
  • Page 17 DM-S500 EXPLODED VIEW (MD MECHANISM) : N39-1745-46 ø2.6x10 : N09-2817-05 M1.7x4.5 : N82-2004-46 M1.7x2 : N09-3104-05 ø2x4 : N89-2008-46 M1.7x3 : N09-3279-05 ø2x8 : N89-2606-45 ø2x6 : N09-4145-05 ø2.6x6(BLK) ADx2 (B/2) AFx2 X29-2580-00 (A/2) X33-1100-00 Slit When assembling a mechanism, adjust "slit A and slit B "...
  • Page 18 : N89-3006-46 ø3x8 (BLK) : N89-3008-45 (19P) X25-6012-72 : N89-2606-45 ø2.6x6(BLK) (A/3) (27P) ø3x18 : N89-3018-46 (13P) ø4x8 : N09-1729-05 (B/5) X14-4702-70 (A/5) (1/3) (C/5) (13P) (2/3) (1/2) (3/3) (2/2) TIME SHUTTLE DISPLAY LEVEL INPUT S 5 S 4 DM-S500...
  • Page 19 Ref. No Parts No. Description Ref. No Parts No. Description ress Parts nation marks ress Parts nation marks DM-S500 J19-3721-14 UNIT HOLDER J21-6480-04 MOUNTING HARDWARE A01-3444-01 METALLIC CABINET J42-0083-05 POWER CORD BUSHING A09-0356-08 BATTERY COVER J61-0101-05 WIRE BAND A21-3620-02 DRESSING PANEL...
  • Page 20 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 21 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 22 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 23: Exploded View

    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 24 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 2SJ278 2SK1764 DTC114EUA DIGITAL TRANSISTOR...