JVC KD-DV5000 Service Manual Download Page 20 | Manualshive

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1-20 (No.49879)

4.4

For the adjustment of the jitter after replacing the pickup

Connecting diagram 2 of extension cable

Procedure

Remove the screws attaching the backend board from the mechanism side, connect the backend board to the connectors (26pins/
20pins) on the main board.
After attaching the top chassis and front panel assemblies to the main board, attach the extension studs (STDV001-3P) on the
top chassis and then attach the mechanism assembly with the nuts.

Main board

Extension stud
STDV001-3P

FFC extension cable
EXTDV001-50PF

Backend board

Extension stud
STDV001-3P

Nut

Disconnect the FFC cable

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Summary of Contents for KD-DV5000

Page 1: ...MPANY OF JAPAN LIMITED No 49879 2003 8 DVD CD RECEIVER 49879 2003 8 KD DV5000 TABLE OF CONTENTS 1 PRECAUTION 1 3 2 SPECIFIC SERVICE INSTRUCTIONS 1 5 3 DISASSEMBLY 1 6 4 ADJUSTMENT 1 19 5 TROUBLE SHOOTING 1 23 Area Suffix E Continental Europe ...

Page 2: ... Level Impedance 2 0 V 20 kΩ load full scale Output Impedance 1 kΩ Color system NTSC Video output composite 1 Vp p 75 Ω TUNER SECTION Frequency Range FM 87 5 MHz to 108 0 MHz AM MW 522 kHz to 1620 kHz LW 144 kHz to 279 kHz FM Tuner Usable Sensitivity 11 3 dBf 1 0 µV 75 Ω 50 dB Quieting Sensitivity 16 3 dBf 1 8 µV 75 Ω Alternate Channel Selectivity 400 kHz 65 dB Frequency Response 40 Hz to 15000 Hz...

Page 3: ... formed during molding may be left over on some parts of the chassis Therefore pay attention to such burrs in the case of preforming repair of this system Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check ...

Page 4: ...rder to maintain quality during transport and before installation both sides of the laser diode on the replacement optical pickup are shorted After replacement return the shorted parts to their original condition Refer to the text Do not use a tester to check the condition of the laser diode in the optical pickup The tester s internal power source can easily destroy the laser diode 1 3 Handling th...

Page 5: ... No 49879 1 5 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS ...

Page 6: ... bottom cover See Fig 2 Prior to performing the following procedures remove the front panel assembly as required 1 Turn over the main body and remove the two screws A at taching the bottom cover 2 Release the two joints a two joints b and joint c Caution Do not damage the main board when releasing the joints using a screwdriver or a similar tool Fig 2 Front panel assembly Detach button Bottom cove...

Page 7: ... the following procedure remove the front panel and front chassis assemblies as required 1 From the left side of the main body remove the two screws D and three screws E attaching the heat sink Fig 5 3 1 5 Removing the rear bracket See Fig 6 Prior to performing the following procedures remove the bot tom cover 1 From the back side of the main body remove the three screws F five screws G two screws...

Page 8: ...ly Reference Remove the fan unit as required Disconnect the fan unit wire from the connector CN531 on the main board and remove the fan unit Fig 7 3 1 7 Removing the DVD mechanism assembly See Fig 8 Prior to performing the following procedure remove the front panel assembly bottom cover front chassis assembly heat sink rear bracket and main board 1 From the inside of the top chassis remove the thr...

Page 9: ...two screws R attaching the heat sink P See Fig 10 5 Release the two joints f and then release the two joints g See Fig 10 6 Disconnect the card wire from the connector CN506 on the back end board See Fig 10 7 Remove the four screws S and screw S attaching the back end board See Fig 10 8 Release the three joints h and then take out the back end board from the DVD mechanism assembly See Fig 11 Refer...

Page 10: ...s T attaching the rear cover See Fig 12 2 Release the ten joints i attaching the rear cover to the front panel assembly See Fig 13 3 Take out the front board from the front panel assembly See Fig 14 Note Do not lose the springs when removing the front board Fig 12 Fig 13 Fig 14 T T T T Rear cover Front panel assembly Joints i Joints i Rear cover Joint i Joint i Front board Front panel assembly Spr...

Page 11: ...e from connector CN10 on the front end board 3 Disconnect the flexible wire from connector CN201 on the front end board 4 Disconnect the flexible wire from connector CN202 on the front end board 5 Unsolder two soldering a on the front end board and dis connect the wire extending from the feed motor 6 Remove the three screws A attaching the front end board Caution As the flexible wire to be connect...

Page 12: ...rs on the front side 2 Remove the two floating springs on the bottom of the body 3 Move the mechanism section upward and remove from the chassis frame The three damper springs come off from the dampers Caution When reassembling reattach the damper spring to the damp er respectively and insert the three shafts on the bottom of the mechanism to the dampers Caution Before inserting the shaft to the d...

Page 13: ... 3 2 5 Reattaching the clamper unit See Fig 5 9 1 Attach the clamper spring to the clamper unit 2 Move the clamper unit to set the side joints e and f to each boss of the chassis base Make sure that part g is inserted to the notch of the chassis base 3 Move the clamper spring d to the outside of the bending part of the chassis base Caution When reattaching temporarily hook the end of the clamper s...

Page 14: ...y 3 Move the front unit toward the front to release joint h and release two joints i and j on the right side of the chassis base Then remove the front unit upward 4 Remove the two screws E attaching the switch board Reference You can remove the switch board only without removing the front unit Caution When reassembling attach the flexible wire extending from the switch board using a double tape Fi...

Page 15: ...f the body move the loading arm S A from the front side upward and release the bosses from the right and left joints k and l of the chassis base 2 Release the boss from notch m of the connect arm on the right side of the body and release the boss from notch n of the slide cam ass y on the left side Fig 13 Fig 14 k m l Loading arm SA k m l Loading arm SA n Side cam ass y Connect arm ...

Page 16: ...from the roller assem bly Caution After attaching the loading A ass y to the roller assembly at tach the rod L and R Attach the rods to the right and left col lars of the roller as shown in Fig 16 1 and Fig 16 2 When reattaching the rod L and R to the loading A ass y engage each joint as shown in Fig 15 As joint n of the rod L let the rod through n before reattaching it Fig 15 Fig 17 Joint n Joint...

Page 17: ... Caution When releasing the lead screw at joint p the L S collar comes off at the end of the lead screw When reassem bling reattach the L S collar to the lead screw and en gage joint p Caution When reattaching the L S collar reattach it to the point p of the lead screw and to the lod M Make sure that the L S collar is set on the lod M spring 4 Remove the screw G attaching the rack spring rack plat...

Page 18: ...e motor Fig 21 3 2 11 Removing the FL motor S A See Fig 22 23 Prior to performing the following procedure remove the front end board 1 Remove the feed TRI spring on the bottom of the body 2 Remove the two screws I attaching the FL motor SA 3 Remove the slit washer from the motor H ass y and pull out the worm wheel 4 Remove the two screws J attaching the FL motor Fig 22 Fig 23 H Spindl motor I FL M...

Page 19: ...d rear bracket onto the power amplifier IC and regulator IC respectively before supply the power If voltage is applied without attaching these parts the power amplifier IC and regulator IC will be destroyed by heat 4 3 For comfirmation of the Main board and mechanism movements Connecting diagram 1 of extension cable Power supply voltage DC14 4V 11V to 16V Load impedance 4 Ω 2 Speakers connection L...

Page 20: ...onnect the backend board to the connectors 26pins 20pins on the main board After attaching the top chassis and front panel assemblies to the main board attach the extension studs STDV001 3P on the top chassis and then attach the mechanism assembly with the nuts Main board Extension stud STDV001 3P FFC extension cable EXTDV001 50PF Backend board Extension stud STDV001 3P Nut Disconnect the FFC cabl...

Page 21: ... the measured jitter value is outside the 1 2 tolerance range perform the following adjustments Jitter value adjustment procedure Pickup horizontal level adjustment relative to the DVD recording surface For the adjustment tool use a 3 mm wrench and not a screwdriver this procedure will make the adjustment easier 1 Set the unit to the service mode and display a jitter value hex data on the LCD 2 Tu...

Page 22: ...6 7 8 142F 10 7 E28 13 6 2008 5 0 1A01 7 9 13FA 10 8 DF3 13 7 1FD2 5 1 19CC 8 0 13C5 10 9 DBE 13 8 1F9D 5 2 1996 8 1 1390 11 0 D89 13 9 1F68 5 3 1961 8 2 135A 11 1 D54 14 0 1F33 5 4 192C 8 3 1325 11 2 D1E 14 1 1EFE 5 5 18F7 8 4 12F0 11 3 CE9 14 2 1EC8 5 6 18C2 8 5 12BB 11 4 CB4 14 3 1E93 5 7 188C 8 6 1286 11 5 C7F 14 4 1E5E 5 8 1857 8 7 1250 11 6 C4A 14 5 1E29 5 9 1822 8 8 121B 11 7 C14 14 6 1DF4 ...

Page 23: ...s buttons b and c together so that the LCD displays the following AREA REGION VERSION RUNNING MODE CHECK MODE EXPERT MODE 2 Press button b three times in order to select CHECK MODE and then press button a so that the LCD displays the following CHECK MODE PRESS A D KEY Load the test DVD VT501 or VT502 this operation is not necessary if the disc has been loaded before starting this procedure and the...

Page 24: ...nning mode For use in running tests Press the DISC UP or DISC DW key Press the SEL key CHECK MODE is indicated on the LCD DVD unit check mode See section DVD check mode for details Press the DISC UP or DISC DW key Press the SEL key EXPERT MODE is indicated on the LCD DVD unit expert mode Press the DISC UP or DISC DW key Press the SEL key TEMPERATURE is indicated on the LCD Thermistor s temperature...

Page 25: ...pe Disc type 0 12 cm 1 8 cm Fixed at 0 SW1 status SW2 status SW3 status SW4 status REST SW status Example When a switch status error occurs during loading route 3 and the switch status is L L H H H 00111B 07H the error code and detailed error code become 09 3207 Route No EJECT route No 1 2 1 2 2 2 2 2 2 2 2 2 3 1 3 1 Chart 1 1 12cm Disc switch status transition SW1 2 3 4 1 1 1 1 0 1 1 1 0 0 1 1 0 ...

Page 26: ... SEL key INITIALIZE is indicated on the LCD Initialize user set data The system control EEPROM is initialized except for the loading ejection error history Press the DISC UP or DISC DW key Press the SEL key INITIALIZE ALL is indicated on the LCD Initialize all data to the factory setting The system control EEPROM is initialized entirely Press the DISC UP or DISC DW key Press the SEL key MEMORY CHE...

Page 27: ...sm adjustment Contents of EEPROM used by mechanism 0x00 0xFF displayed FWD Contents of EEPROM used by mechanism 0x00 0xFF displayed BWD Initialization of EEPROM contents used by the mechanism Search jitter measurement of the specified position of DVD SL Search jitter measurement of the specified position of opposite disc of the DVD DL Search jitter measurement of the specified position of parallel...

Page 28: ...OWER keep thgis order Push button indicate INITIALIZE on LCD Then push SEL button Indicate COMPLETED on LCD OK 3 Power OFF Push power button Power is OFF 5 3 Shipping position Final process 1 Confirm firm ware a Push 3 button at same time for a while SEL SRC POWER keep this order b Indicate on LCD AREA REGION Push SEL button c Confirm on LCD B E AREA is U A d Next push UP button e Confirm on LCD B...

Page 29: ... No 49879 1 29 ...

Page 30: ... No 49879 AV MULTIMEDIA COMPANY MOBILE ENTERTAINMENT CATEGORY 10 1 1chome Ohwatari machi Maebashi city 371 8543 Japan VICTOR COMPANY OF JAPAN LIMITED WPC Printed in Japan ...

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