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(No.MB207)1-11

3.1.7 Removing the tuner pack assembly

(See Fig.17~18)

• Prior to performing the following procedure, remove the metal

cover and the CD changer unit.

(1) Disconnect the card wire from the connector

CN1

on the

tuner pack assembly on the right side of the body.

(2) Remove the two screws

H

on the rear panel on the back

of the body.

Fig.17

Fig.18

Tuner pack

(CN1)

AUX & surround board

Rear panel

H

Rear panel

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Содержание MX-SK1

Страница 1: ...IO COMPACT DIGITAL VIDEO PHONES ACTIVE BASS EX EJECT EJECT DISC SELECT SELECT M X S K 3 COMPACT DIGITAL VIDEO VOLUME STANDBY ON FM MODE AUX SLEEP FM AM VIDEO INTRO PREV NEXT HIGHLIGHT ON SCREEN SET ENTER RETURN PBC STILL KEY CONTROL DISC 1 DISC 2 DISC 3 DISC REPEAT PROGRAM RANDOM PROGRAM CANCEL SOUND TURBO SOUND MODE ACTIVE BASS EX TAPE A KARAOKE MPX ECHO FADE MUTING TAPE B VOLUME REMOTE CONTROL S...

Страница 2: ...ic range 85 dB Signal to noise ratio 90 dB Wow and flutter Immeasurable Cassette deck Frequency response Normal type I 50 Hz to 14 000 Hz Wow and flutter 0 15 WRMS General Power requirement AC 110 V AC 127 V AC 220 V AC 230 V to AC 240 V adjustable with the voltage selector Power consumption 50 Hz 60 Hz 100 W at operation 20 W on standby Dimensions approx 270 mm x 306 mm x 433 5 mm W H D Mass appr...

Страница 3: ...ack control shafts etc to be sure the product is safe to operate without danger of electrical shock Do not use a line isolation transformer during this check Plug the AC line cord directly into the AC outlet Using a Leakage Current Tester measure the leakage current from each exposed metal parts of the cabinet particular ly any exposed metal part having a return path to the chassis to a known good...

Страница 4: ...condition of the laser diode in the optical pickup The tester s internal power source can easily destroy the laser diode 1 6 Handling the traverse unit optical pickup 1 Do not subject the traverse unit optical pickup to strong shocks as it is a sensitive complex unit 2 Cut off the shorted part of the flexible cable using nippers etc after replacing the optical pickup For specific details refer to ...

Страница 5: ... No MB207 1 5 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS ...

Страница 6: ...Fig 1 3 1 Remove the six screws A on the back of the main body 2 Remove the four screws B on each side of the body 3 Remove the metal cover from the body by lifting the rear part of the cover CAUTION Do not break the front panel tab fitted to the metal cover Fig 1 Fig 2 Fig 3 A A A B B ...

Страница 7: ...emove the CD tray fitting before removing the CD changer unit 1 Press the STANDBY button Press the OPEN CLOSE but ton to eject the CD trey 2 Move the CD trey fitting upward and release the joint a 3 Press the OPEN CLOSE button to insert the tray Fig 4 Fig 5 Fig 6 CD tray STANDBY ON button OPEN CLOSE button CD tray fitting Joint a Joint a CD tray ...

Страница 8: ...CD fitting 1 Disconnect the wire from connector CN13 on the main board 2 On the right side of the body disconnect the card wire from connector CN651 on the CD board in the bottom of the CD changer unit 3 Remove the four screws D attaching the CD changer unit on both sides of the body 4 Remove the three screws E on the back of the body 5 Move the CD changer unit in the direction of the arrow with p...

Страница 9: ... four screws F attaching the CD board on the bottom of the CD changer unit 2 Turn and move the CD board as shown in Fig 12 3 Disconnect the wire from the CD mechanism board 4 Solder the short circuit point on the CD pickup section 5 Disconnect the card wire from CN601 on the CD board Caution When reassembling unsolder the short circuit point after con necting the card wire to CN601 on the CD board...

Страница 10: ...e the band attaching the wire to the main board 3 Disconnect the wire from the connector CN214 on power transformer board 4 Remove the two screws G attaching the front panel as sembly on the bottom of the body 5 Remove the two joints d and e on the lower part of the sides using a screwdriver and remove the front panel as sembly toward the front Fig 14 Fig 15 Fig 16 Main board CN870 Speaker board C...

Страница 11: ...procedure remove the metal cover and the CD changer unit 1 Disconnect the card wire from the connector CN1 on the tuner pack assembly on the right side of the body 2 Remove the two screws H on the rear panel on the back of the body Fig 17 Fig 18 Tuner pack CN1 AUX surround board Rear panel H Rear panel ...

Страница 12: ...ure remove the metal cover and the CD changer unit 1 Disconnect the card wire from the connector CN411 CN711 on the on the AUX surround board on the right side of the body 2 Remove the screw J on the rear panel on the back of the body Fig 19 Fig 20 Tuner pack AUX surroud board CN411 Rear panel J Rear panel ...

Страница 13: ...ching the speaker board and the two screws M attaching the power transformer board on the back of the body 5 Remove the four screws N attaching the heat sink on the back of the body 6 Remove the screw P attaching the rear cover on the back of the body 7 Release the two joints f and g on the bottom of the rear panel using the screw driver then detach the rear panel backward Reference The rear panel...

Страница 14: ...e screw R attaching the speaker board 4 Move the speaker board in the direction of the arrow to re lease from the base chassis at the joint h and the two joints j Reference The speaker board comes off with the main board and the heat sink 5 Remove the screw T and the three screws U attaching the heat sink The heat sink comes off with the heat sink brack et 6 Detach the main board from connector CN...

Страница 15: ... attaching the power transformer board on the left side of the body 3 Remove the four screws B attaching the power transform er board 4 Push the cord stopper upward and remove 5 Disconnect the power cord from connector CN250 on the power transformer board and remove the band 6 Remove the power transformer assembly upward Fig 30 Fig 31 Fig 32 B CN250 CN214 Power transfomer board Power transfomer as...

Страница 16: ...sm assembly See Fig 33 34 1 Remove the eight screws D attaching the cassette mech anism assembly 3 2 2 Removing the LCD board See Fig 34 1 Disconnect the card wire from the connector CN880 on the LCD board 2 Remove the nine screws E attaching the LCD board Fig 33 Fig 34 D D D D Cassett mechanism assembly Front panel assembly E E E Cassett mechanism assembly CN880 Swithc board LCD board ...

Страница 17: ...the front of the front panel assembly 2 Remove the two screws D attaching the two wires on the bottom of the front panel assembly 3 Remove the ninteen screws F attaching the switch board 4 Unsolder the wire on the switch board at FW800 point Fig 35 Fig 36 Front panel assembly MIC level knob F F D F F D Cassette mechanism assembly Swithc board Volume board FW800 ...

Страница 18: ...g procedure remove the LCD board and the switch board 1 Pull out the volume knob from the front of the front panel assembly 2 Remove the nut from the front panel assembly 3 Release the volume board from the tab and remove Fig 37 Fig 38 Front panel assembly Nut Volume knob Volume board Tab Tab ...

Страница 19: ...w and draw the CD tray toward the front until it stops 2 Disconnect the card wire from connector CW2 of the motor board on the upper side of the CD changer unit 3 Push down the two tray stoppers and pull out the CD tray Reference When reassembling set each gear as shown in Fig 42 and in sert the CD trays as shown in Fig 43 Fig 39 Fig 40 Fig 41 Fig 42 CD tray Loading pulley gear CLOSE OPEN CD tray ...

Страница 20: ...1 20 No MB207 Fig 43 Fig 44 Fig 45 CD tray Tab Sensor board Tray motor CD tray m n Connector Spacer m n ...

Страница 21: ...e wire from connector on the sensor board 3 Pull out the spacer attaching the turn table at the part m 4 Push the tab of part m inward to release the turn table from the CD tray 5 Push the tab of part n inward to release the gear from the CD tray 6 On the upper side of the CD tray extend the tab p attach ing the tray motor and remove the tray motor in the direc tion of the arrow Fig 46 Fig 47 CD T...

Страница 22: ... side of the CD changer unit Do not stain the belt with grease 2 Release the three tabs q and the three tabs r upward on the backside of the CD changer unit 3 Release the three tabs t attaching the switch board 4 Unsolder the two soldering on the motor board and remove the motor Fig 48 Fig 49 Fig 50 Belt CD changer unit r g Switch board Solder section Motor board r g g Switch board t t ...

Страница 23: ... CD mechanism holder assembly as shown in Fig 52 2 Pull outward the two stoppers setting the shafts on both sides of the CD mechanism holder assembly and remove the CD mechanism holder assembly in the direction of the arrow Fig 51 Fig 52 Fig 53 Loading pulley gear CD mechanism holder assembly Stopper Stopper Loading pulley gear CD mechanism holder assembly CD mechanism holder assembly List map sli...

Страница 24: ...D mechanism holder assembly 1 Remove the four screws G attaching the CD mechanism assembly 2 Remove the four insulators Caution When reassembling attach the insulator to the correct posi tion Fig 54 Fig 55 CD mechanism holder assembly G G CD mechanism CD mechanism Insulator green Insulator red Insulator green Insulator red ...

Страница 25: ...ad from the connector CN31 on the head amplifier mechanism control board 4 Remove the flexible board from the chassis base 5 Remove the spring a from behind the playback recording eraser head 6 Loosen the reversing azimuth screw retaining the playback recording eraser head 7 Take out the playback recording eraser head from the front of the head mount 8 The playback recording eraser head should als...

Страница 26: ...bly hole P V and ditch O U and Q See Fig 4 and Fig 5 3 Fix the reversing azimuth screw 4 Attaching the spring a from back side of playback recording eraser head 5 Attaching the flexible board to the chassis base Fig 4 Fig 5 Fig 6 O P V Q U Direction lever Head mount assembly Head mount assembly Direction cover O P Q U Head mount Reverse azimuth screw R P E head or PB head Spring a Flexible board F...

Страница 27: ... Removing the capstan motor assembly See Fig 8 to Fig 10 1 Removing the 6 screws 2 retaining the capstan motor assembly 2 While raising the capstan motor remove the capstan belt from the motor pulley Caution Be sure handle the capstan belt so carefully that this belt will not be stained by grease and other foreign matter Moreover this belt should be hanged while referring to the capstan belt handl...

Страница 28: ...washers and fixing capstan shaft L and R and pull out the flywheel R and L respectively from behind the cassette mechanism Fig 12 Fig 13 3 4 7 Removing the reel pulse board and solenoid See Fig 14 1 Remove the five pawls d to h retaining the reel pulse board 2 From the surface of the reel pulse board parts remove the two pawls i and j retaining the solenoid Fig 14 3 3 Capstan motor Joint bracket F...

Страница 29: ... Fig 15 to Fig 17 1 Shift to left side forward direction the head mount assembly hole K of control cam into the hollow K of the mechanism sub assembly Fig 15 Fig 16 Fig 17 K K Control cam hole Mechanism sub assembly top side K Control cam top side hole K ...

Страница 30: ...andard measurement positions of volume and switch Power Standby Light STANDBY Indicator Sub woofer VOL Minimum Sound mode OFF Main VOL 0 Minimum Traverse mecha set position Disc 1 Mic MIX VOL MAX ECHO OFF Precautions for measurement 1 Apply 30pF and 33kohm to the IF sweeper output side and 0 082 F and 100kohm in series to the sweeper input side 2 The IF sweeper output level should be made as low a...

Страница 31: ...ection Head azimuth adjusting screw Forward side Head azimuth adjusting screw Forward side Head azimuth adjusting screw Reverse side Head azimuth adjusting screw Reverse side Playback head Playback recording and eraser heads or playback head Front panel assembly Head amplifier Mechanism control board VR301 Tape speed ADJ BIAS TP VR101 Bias ADJ L VR201 Bias ADJ R ...

Страница 32: ...tions Measurement method Standard values Adjusting positions Double tape speed Difference between the forward and reverse speed P mecha and R P mecha speed Wow flutter After setting to the double speed motor confirm that the frequency counter reading becomes 4 800 400 300Hz when the test tape VT712 3kHz has been play back with the playback mechanism When the test tape VT712 3kHz has been played ba...

Страница 33: ...for RcH so that the recording bias current values become 4 0 A TYP Mode Forward or reverse mode Recording mode Test tape AC 225 Measurement output terminal Both recording and headphone terminals AC 225 4 20 A LcH VR101 RcH VR201 LcH VR101 RcH VR201 Items Measurement conditions Measurement method Standard values Adjusting positions Items Measurement method Recording bias frequency Eraser current Re...

Страница 34: ...1 34 No MB207 SECTION 5 TROUBLESHOOTING This service manual does not describe TROUBLESHOOTING ...

Страница 35: ... No MB207 1 35 ...

Страница 36: ... No MB207 AV MULTIMEDIA COMPANY AUDIO VIDEO SYSTEMS CATEGORY 10 1 1chome Ohwatari machi Maebashi city 371 8543 Japan VICTOR COMPANY OF JAPAN LIMITED WPC Printed in Japan ...

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