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Kenwood LD-K300V Service Manual
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Kenwood LD-K300V Service Manual

Video-cd ld player
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VIDEO-CD LD PLAYER
LD-K300V
SERVICE MANUAL
Miniature phone jack
(E11-0200-05)
Indicator
(B12-0316-04)
Escutcheon
(B07-2359-12)
COMPACT
COMPACT
DIGITAL VIDEO
DIGITAL VIDEO
ON/STANDBY
MIC
2
1
MIC CONTROL
Phono jack
(E11-0366-05)
Foot
(J02-1188-03)
Phono jack
(E63-0130-05)
VIDEO
OUTPUT
2/R
AUDIO
OUTPUT
Dolby AC - 3
RF OUT
SYSTEM
CONTROL
Phono jack
Miniature phone jack
(E63- 0116-05)
(E11-0188-05)
Refer to LVD-290 service manual (B51-5233-00), if you
require the semiconductor description (X32, IC9 9 MPEG
u-COM) and disassembly for repair in detail.
Panel
(A19-0865-01)
VIDEO CD LD PLAYER LD-K300V
MIC LEVEL
MIC1
MIC2
Knob
(K29-6688-02)
Phono jack
Power cord busing
(E63-0122-05)
(J42-0083-05)
1/L
AC power cord
(E30-2717-05)
1997-8/B51-5333-00 (K) 2337
Dressing panel
(A21-1966-03)
KEY CONTROL
I
È
i
Front glass
Knob
(B10-2361-13)
(K29-6687-03)
Attention !
To avoid firing or other accident, the repair (in clouding
replacement of fuse) of the switching power supply
P.C.B. (W02-2568-35) is prohibited.
In case of the repair (defective P.C.B.), please replace
the complete P.C.B. with new one.
Knob
Panel
(K29-6689-02)
(A60-1155-11)
°
RF
VIDEO CD
AC - 3 O UT
0
AUTO
OPEN
PAUSE
AUTO
AUDIO
MONITOR
DIGITAL
¢
4
PREVIOUS
NEXT
6
KARAOKE
ECHO LEVEL
7
POWER
-ON–OFF
Knob
Foot
(K27-2233-04)
(J02-1188-03)
Metallic cabinet
(A01-3440-01)

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Summary of Contents for Kenwood LD-K300V

  • Page 1 Panel Dressing panel Knob Panel (B12-0316-04) (A19-0865-01) (A21-1966-03) (K29-6689-02) (A60-1155-11) Escutcheon (B07-2359-12) ° VIDEO CD AC - 3 O UT VIDEO CD LD PLAYER LD-K300V AUTO OPEN PAUSE AUTO AUDIO MONITOR DIGITAL ¢ COMPACT COMPACT PREVIOUS NEXT DIGITAL VIDEO DIGITAL VIDEO...

  • Page 2: Table Of Contents

    LD-K300V CONTENTS / ACCESSORIES / CAUTIONS Contents CONTENTS / ACCESSORIES / CAUTIONS....2 EXPLODED VIEW ............26 ADJUSTMENT ............3 PARTS LIST..............28 PC BOARD ..............5 PARTS DESCRIPTIONS ..........37 SCHEMATIC DIAGRAM ..........9 SPECIFICATIONS ........Back cover Accessories Audio cord (2) Video cord (1) System control cord (1)

  • Page 3: Adjustment

    LD-K300V ADJUSTMENT MAIN UNIT(X34-1033) INPUT OUTPUT PLAYER ALIGNMENT ALIGN ITEM FIG. SETTING SETTING SETTING POINT Frame No.19,001 Connect the STILL (Still image) Minimize the TV monitor to the crosstalk on the video output. *Frame No.23,402 screen. TILT LD TEST DISC...
  • Page 4 LD-K300V ADJUSTMENT MECHANISM ADJUSTMENT PROCEDURE INPUT OUTPUT PLAYER ALIGNMENT ALIGN ITEM FIG. SETTING SETTING SETTING POINT Connect an Tangential nut Maximize the RF oscilloscope to CN3 (Turn within ± 4 <1> TANGENTIAL CD TEST DISC PLAY signal (eye pattern) pin 6 (EFM). (MAIN clicks) amplitude.

  • Page 5: Pc Board

    PC BOARD(Component side view) LD player unit (X34-1033-00) Refer to the schematic diagram for the value of resistors and capacitors.

  • Page 6: Schematic Diagram

    PC BOARD(Component side view) Sub-circuit unit (X13-7400-20) Video unit (X35-2170-20) Display unit (X25-5983-00) Refer to the schematic diagram for the value of resistors and capacitors.
  • Page 7 (X34-1033-00) (1/2) MECHA ASS'Y (X92-1621-01) R591 10 TILT SENSOR PICKUP(V-SF1B) 1/4W LD FEM TILT LED (X93-1000-03) RF AMP PD IN 3.8V TILT PD IN 2.4V R357 100 R501 0.3V C515 TILT PD OUT PD OUT ANALOG RF -0.4V RF GND SIGNAL AMP -3.4V 1K(B)
  • Page 8 C501 R505 15K R503 R504 C502 4.9V 5.0V C512 C505 R575 100K R540 C569 C514 4.9V 220K A MUTE 0.047 120uH 120uH IC26 0.5V DRIVE INVETER FM AUDIO DEMODULATION R535 C548 R543 220K R574 -2.6V 5.0V 100K 4.9V R383 -2.8V R542 -1.9V C508...
  • Page 9 220u10 2SK163 HM62256BLFP12T TC74HCT7007AFE NJM2058M 2.5V TC74HCU04AF TC74HC00AFE TC74HC14AFE TC74HC74AF 4.9V CA0002AM NJU3715G LC78630E LA9420M PD0192A RF GND V OUT X32-2/2 NJM4565L PD0011A-SP TC4053BF LA9425 uGND +14V +14V +14V +14V 14V GND -14V -14V -14V -14V LD-K300V LD-K300V(M) (1/4) Y22-7123-00...
  • Page 10 (X34-1033-00)(2/2) RF GND V OUT X34-1/2 uGND -29V -29V -29V -29V +14V +14V 14V GND -14V -14V C604 0.01 C609 100u35 5.0V 5.0V R617 -27.8V 4.9V 2.6V INVERTER (L MUTE) C612 R635 C608 R632 100u10 4.9V 0.01 2.53V -27.7V DOSINH SLIDER D613 4.9V...
  • Page 11 10 1/4W 5.0V A/D INPUT 4.8V VIDEO SIGNAL DROPOUT L.P.F.BUFFER DEMODULATION INPUT BUFFER 2.2V 5.0V 4.8V 1.3V VCC2 0.9V 0.047 56uH 2.2V 27uH 27uH 2.9V 0.8V 0.2V -0.6V Q13-15 2.9V 2.2V GND2 SIGNAL C583 0.01 470P 2.3V MIC SW 2.2V R510 220 1.7V R530 220...
  • Page 12 Q75,76 : UN5112 or DTA1576(R,S) -CN1 IC31 : NJU3715G IC33 : PST993D-T : DA204U IC34 : M38199MF-066FP D2,10,609 : 1SS33 or HSS104 : DAP202U D613 : MA110 SIGNAL LINE -CN202 GND LINE +B LINE -B LINE LD-K300V LD-K300(M) (2/4) Y22-7123-00...
  • Page 13 (X35-2170-20) 3.3V AVR +3.4V +3.4V 3.4V 4.9V 3.4V +3.4V 1.3V 13.5MHz VOE_ 3.0V 3.4V +3.4V VDD 3 1.6V VCLK 1.8V 3.2V 1.7V 1.4V 0.4V EMPH X34-2/2 4.9V DA-LRCK RESET_ -CN13 DA-BCK DA-DATA CD-C2PO 2.5V DA-EMPH CD-LRCK R65 220 1.7V CD-DATA DATA R66 220 2.5V...
  • Page 14 3.0V DSEL 3.6V 3.6V 3.8V 3.6V 3.8V R26 56K 0.2V 1.8V 1.7V 4.9V IC RESET_ 3.0V 4.9V DRAM ɇ 4.7V 1.7V 4.8V R24 56K 4.9V 4.9V 2.6V 2.4V 0.4V 3.7V 3.6V 3.4V 0.8V 4.9V C5 0.1 LD-K300V(M) (3/4) LD-K300V Y22-7123-00...
  • Page 15 SPINDLE MOTOR (X25- ) (C/6) (X25- ) (B/6) -10.0V SYSTEM MIC1 0.1u50 (1/2) CONTROL SDATA X34-1/2 SBUSY MIC SW -CN11 R12 100 R19 27K C14 0.01 CONTROL SGND C7 120P C9 0.1 MIC1 R21 100 X34-2/2 C8 120P C10 0.1 MIC2 -CN9 R20 27K...
  • Page 16 EDIT AUTO PAUSE REPEAT TOTAL AUTO OPEN AC-3 (7G~1G) ECHO DOWN ECHO UP VOL2 UP VOL2 DOWN AUTO VOL1 UP AUTO VOL1 DOWN OPEN AUTO KARA/NOR. PAUSE AUDIO MONITOR IC RESET IC RESET 4.9V REMOTE SENSOR LD-K300V (4/4) LD-K300V Y22-7123-00...

  • Page 17: Exploded View

    LD-K300V EXPLODED VIEW (CD MECHANISM) 25x2 ANx4 AJx2 (X25-) (B/2) AAx2 ASx2 (J26-) ø 2x5 : N89-2005-46 (A/2) (X34-) ø 2.6x8 : N09-2769-05 (E/7) ø 2.6x12 : N09-2809-05 ø 3x14 : N09-2811-05 (X34-) ø 4x15.6 : N09-2812-05 (F/7) WASHER : N19-0366-04...
  • Page 18 M4x8(BLK) N86-4008-45 ø3x8 N89-3008-46 ø3x18 N89-3018-46 ø3x8(BLK) N89-3008-45 PUSH RIVET N29-0067-05 AUTO PAUSE OPEN AUTO AUDIO DIGITAL MONITOR MIC LEVEL KEY CONTROL ECHO MIC1 MIC2 LEVEL S 9 S 8 S 7 S 6 S 5 S 2 LD-K300V KARAOKE...
  • Page 19 Desti- Add- Desti- Ref. No Parts No. Description Ref. No Parts No. Description ress nation marks Parts ress Parts nation marks LD-K300V 2D,2E J02-1188-03 FOOT J19-2598-05 HOLDER A01-3440-01 METALLIC CABINET J19-2808-05 HOLDER A29-0865-01 PANEL J19-3721-14 UNIT HOLDER A60-1155-11 PANEL J42-0083-05...
  • 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 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 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 25 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 26 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 27 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 28: Parts Descriptions

    LD-K300V PARTS DESCRIPTIONS...

  • Page 29: Specifications

    Allowable operating temperature range ....5°C~40°C Allowable operating humidity range ......5%~90% (condensation should not form) KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice. Note: Component and circuit are subject to modification to insure best operation 14-6,Dogenzaka 1-chome, Shibuya-ku, Tokyo, 150 Japan under differing local conditions.