Sanyo FISHER V95 I Mechanism Technical Information Download | Manualshive

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Summary of Contents for FISHER V95 I Mechanism

Page 1: ...AD AND ACE HEAD I4 L 3 7 CAPSTAN MOTOR 15 3 8 LOADING MOTOR ASSEMBLY AND WORM GEARASSEMBLY 16 3 9 PINCH ROLLERPRESSURE MECHANISM 16 3 10 L GUIDE LEVERASSEMBLY AND LOAD LEVERASSEMBLY 18 3 11 BT LEVERASSEMBLY 18 3 12 REELDRIVE MECHANISM 19 3 13 BRAKES 20 3 14 GUIDES 22 3 15 WHEEL GEAR 2 MAIN CAM AND MODE SWITCH 23 3 16 CRESCENTSLIDE 24 3 17 S LOAD GEAR T LOAD GEAR S LOAD LEVERASSEMBLY AND T LOAD LEV...

Page 2: ...o 0 0 0 0 0 0 0 0 0 Tape path The life of parts varies Cylinder drum o 0 0 0 0 0 0 0 0 0 enormously depending on the system environment in which the part 0 0 0 0 0 0 0 0 0 is used Cleaner roller assembly 0 0 0 0 0 Pinch roller o 0 0 0 0 0 0 0 0 0 Reel table o OA o OA o Drive Reel belt o 0 0 0 0 0 0 0 0 0 system Relay gear Pulley shaft Gaar shaft A A A A A Loading motor 0 0 0 0 0 Back tension o Q o...

Page 3: ...of the lever load assembly 7 Torque dial gauge VHJ OO04 Used tomeasurereel winding torque 8 Cassette torque meter VHJ 0016 Used to measure backtensiontorque 9 Load lever assembly height adjustment tool VHJ 0102 Used to adjust the height of the load lever assembly 10 Torque gauge screwdriver VHJ 0014 Used to adjust the tightening torque of screws 11 3 mm dia bit for torque screwdriver VHJ 0045 Used...

Page 4: ...g it take note of the pin number of the connector NOTE 1 Do not place the mechanism upright as shown in Fig 1 2 2 when inserting ejecting the cassette NOTE 2 For NTSC models be sure to connect the VM I PWB assembly and CP I PWB assembly 2 AN OVERVIEW OF THE MECHANISM 2 1 NAMES OF THE MAIN PARTS 2 1 1 CASSEITE MECHANISM ASSEMBLY A Under fl CP I PWB assembly Mechanism unit Fig 1 2 2 e lever pring ni...

Page 5: ...l belt Capatan motor aaaembly Al 1 Harneaa mounting Pinch cam gear II YY LX o Mode switch S8001 II N AA Brake control lever h Main cam Clutch chanrae Ievar c c_enta ide b4lLXil73 Brake ac t lever I i Fig 2 1 2 Stator Rotor T load gear z S load gear Crescent mounting T load lever eeaembly S load lever aasembly BT spring lever assembly MC 1 PWB aaaambly Whael gear 2 Wheel gear 1 aeaembly I Reel pull...

Page 6: ... mode column are the codes on the crescent slide MODE SWITCH OUTPUT TABLE HEX SW DATA SW DATA2 DATA 1 x f z o 5 OV H H H 5V 1 5 OV H H L Ov 2 2 5V H L H 5V 3 2 5V H L L Ov 4 3 4V L H H 5V 5 3 4V L H L Ov 6 2 OV L L H 5V 7 2 OV L L L Ov APPEARANCE OF MODE SWITCH AND RELATIONSHIP BETWEEN MODE POSITIONS FF REvv EJECT E STIL IN CZXY Fig z z l 6 ...

Page 7: ...HOW TO CHECK THE MECHANISM MODE POSITION You can tell which mode the mechanism is currently in by The edge of the looking at the codes and marking lines on the crescent crescent mounting Crescentlmounting slide ontheunderside of the mechanism chassis The edae is the reference line of the crescent mounting is used as the reference line as v shown in Fig 2 2 2 and the marking lines and symbols indic...

Page 8: ...rotation of the loading motor before beginning front unloading Rotate the capstan motor with your hand wind the slacked part of the tape and rotate the loading motor in the EJECT direction again NOTE 1 When carrying out front loading release the lock by pressing down the tray lock lever and the lid opener lever of the cassette mechanism assembly shown in Fig 3 2 2 in the direction of the arrow NOT...

Page 9: ...1A k Screw VM I VP 1 Yi PWB assembly Fig 3 2 l 3 3 CASSEITE DRIVE MECHANISM 3 3 1 CASSEITE MECHANISM ASSEMBLY See Figs 3 3 l and 3 3 2 1 Put the VCR into EJECT mode 2 Remove the two screws 3 Lift up the back of the cassette mechanism assembly slightly and remove the two hooks on the front ASSEMBLY NOTES 1 2 3 4 The cassette mechanism assembly and the mechanism chassis should both be fitted in EJEC...

Page 10: ...ove the cassette mechanism assembly referring to section 3 1 Remove the two clamps and take out the under _ frame pulling it towards you Press down the tray lock lever and the lid opener lever and loosen the tray lifting it away from you In this state press the clampo and remove the door opener Iever Remove the two clamps and take out the stand L Be careful not to exert too much force on the clamp...

Page 11: ...y refer to section 3 3 1 and align the start rack gear with the pinion gear Front rack gear ap ply grease to y Ins de of groove J Shaft Front rack x gear assembly Clamp A y 2 1 fl Spring p Y Special screw Start rack gear apply grease to mslde of groove Flg 3 3 5 Positio ing mark Positioning mark lMain cam 3 4 CLEANER ROLLER ASSEMBLY See Fig 3 4 1 1 Remove the clamp and take out the cleaner lever W...

Page 12: ...r drum and the lower cylinder assembly lower drum must be aligned The CH 1 head on the upper cylinder assembly bears _ a code such as 2N2S V 2N4N or 4H6N as shown in Fig 3 5 3 The CH I on the lower cylinder assembly has a round hole o as shown in Fig 3 5 4 Assemble the parts so that the round hole l is next to the code on the upper cylinder assembly 2 Be careful not to scratch the tape path surfac...

Page 13: ...ion 4 3 and do the switching position adjustment of the servo circuit lScrew Bracket shaDe varies e5 model Cyiinder I I_ mounting 3 5 3 CYLINDER MOTOR ROTOR AND STATOR See Fig 3 5 6 1 Refer to section 3 5 2 and remove the cylinder unit 2 If you have removed the mechanism unit remove the screw and remove the cylinder earth assembly 3 Remove the two screws the rotor and the spacer 4 Remove the three...

Page 14: ...BLY ACE HEAD See Fig 3 6 1 1 Unplug the connector from the audio R P head assembly ACE head 2 Remove the two screws and the audio RIP head assembly ACE head ASSEMBLY NOTES 1 2 3 4 Align the holeo on the audio R P head assembly ACE head with the pin on the chassis unit After assembly check that the clamp on the cleaner roller assembly has snapped into the mounting of the audio R P head assembly ACE...

Page 15: ...s then remove the harness mounting 0 3 Remove the reel belt 4 Remove the three screws and the capstan motor ASSEMBLY NOTES 1 Check that connector is inserted in the CP I PWB assembly 2 When fitting the three screwso use the torque gauge screwdriver VHJ 0014 Give the screws a tightening torque of 3 5 kglcm 3 After assembly clean the capstan shaft with a soft cloth or chamois Screws 1 CaDstan shaft ...

Page 16: ...larity of the lead wires the orange wire is the positive terminal and the gray wire is the negative terminal After soldering the lead wires adjust them so that they do not touch the friction gear assembly Worm gear assembly p Damper Apply Loading motor assembly rease Lead wires Clamps Ii Gray N negative L Orange positive _ Clamp 3 9 PINCH ROLLER PRESSURE MECHANISM 3 9 1 PINCH ROLLER LEVER ASSEMBLY...

Page 17: ... 0101 to the outside of the shaft and all over the top cam of the pinch cam gear 2 Check that the positioning mark on the mode u switch isalignedwith the arrow on the MC 1 PWB assembly as shown in Fig 3 9 3 Then align the triangular mark on the pinch cam gear with the arrow on the MC 1 PWB assembly After that align the round hole on the pinch lift cam with the indentation on the pinch cam gear If ...

Page 18: ...cial nut Load lever 7 o assembly Load lever assembly L guide lever spring o assem b L guide act lever pin i Shaft Cam groov e Stopper 1 2 3 4 5 Refer to section 3 2 and remove the mechanism unit Refer to section 3 3 1 and remove the cassette mechanism assembly Remove the BT spring Remove the clamp on the underside of the mechanism chassis then remove the BT lever assembly Remove the clamp on the b...

Page 19: ...remove the reel pulley 3 Remove the two screws then remove the clutch mounting assembly ASSEMBLY NOTES 1 Align the two holes with the shafts l and Be careful not to press part A of the clutch mounting assembly against the band brake assembly 2 After assembly make sure that the clamp on the clutch change lever has snapped into the chassis x WScrews Part A 79 1 i Hole 0 Hole R v _ Clutch mounting as...

Page 20: ... spring Fig 3 12 4 3 13 BRAKES 3 13 1 S BRAKE ASSEMBLY T BRAKE ASSEMBLY T BRAKE ACT SLIDE See Fig 3 13 l 1 Refer to section 3 3 1 and remove the cassette _ mechanism assembly 2 Remove the two clamps o then remove the T brake act slide Note You can remove the S brake assembly and the T brake assembly without removing the T brake act slide 3 Remove the brake spring o 4 Remove the two clamps simultan...

Page 21: ...oove of the crescent slide Before fitting the wheel gear 1 align the hole with the hole on the mechanism chassis Refer to section 3 15 and align the wheel gear 2 Pin rn _ Whe gear ft Fig 3 13 2 1 2 3 4 5 ASSEMBLY See Figs 3 13 3 and 3 13 4 Refer to section 3 16 and remove the crescent slide Refer to section 3 12 1 and remove the friction gear assembly Slide the S brake act slide in the direction o...

Page 22: ... in the PLAY direction until tape loading is completed Shift the S incline mounting assemblyo slightly in the direction of the arrow then remove it from the S load lever assembly Shiftthe Tincline mounting assembly slightly in the direction of the arrow then remove it from the T load lever assembly ASSEMBLY NOTES 1 Apply grease VHJ 0100 to the rail top underside and sides on the mechanism chassis ...

Page 23: ...hat the sixth tooth space left of part is aligned with the triangular mark on the pinch cam gear After aligning part refer to section 3 9 2 and check the positioning of the mode switch the pinch cam gear and the pinch lift cam Beforehand remove the soldering from the soldered part of the MC 1 PWB assembly in order to prevent the mode switch being warped Solder the mode switch after tightening the ...

Page 24: ...NOTES 1 2 3 4 Apply grease VHJ O1OO to the points and in Fig 3 16 1 and to the crescent slide shown in Fig 3 16 2 Before fitting the crescent slide refer to section 3 13 3 and align the arrow on the S brake act slide with the arrow on the mechanism chassis Then refer to Fig 3 17 3 and check that the S load gear andthe Tload gear have completed tape unloading When assembling the parts raise the rig...

Page 25: ...isassemble the components as the T load spring will spring out ASSEMBLY NOTES 1 Apply grease VHJ 0100 to the shafts and parts A shown in Fig 3 17 l Then apply grease VHJ 0100 to the parts shown in Fig 3 17 2 2 When fitting the S load gear and the T load gear align them in the tape loaded state as shown in Fig A in Fig 3 17 3 Again after completing tape unloading on these gears check that they are ...

Page 26: ...2 1 Refer to sections 3 12 2 and 3 12 4 then remove the clutch mounting assembly the T soft brake assembly and the take up reel assembly 2 Refer to section 3 13 2 then remove the wheel gear 2 the wheel gear 1 and the brake control lever 3 Remove the soldering from the MC 1 PWB assembly then remove the photo diode reel sensor ASSEMBLY NOTES 1 When assembling the parts align the cut on the photo dio...

Page 27: ...e up reel assembly on the take up side with your hand so that the reel sensor does not respond After switching to FF mode wait for at least 10 seconds and then measure the torque value of the reel table on the take up side It should be at least 600g cm lock torque After switching to PLAY mode wait for at least 10 seconds and then measure the torque value of the reel table on the take up side It sh...

Page 28: ...g the CH 2 probe into contact with the switching pulse SW P test point While adjusting the tape path set the trigger at the low side of the switching pulse SW P in order to observe the output waveform on the CH 1 side of the video head NOTE The contact point for the oscilloscope varies from one model to another so to find the correct point for your model refer to the figure entitled Test point for...

Page 29: ... 4 c it may happen that when you tighten the S guide roller the wrapper waveform does not disappear but sinks into the flat part as shown in Fig 4 3 4 d If this happens the status shown in Fig 4 3 4 c is normal so loosen the S guide roller then tighten it again until the envelope waveform is as shown in Fig 4 3 4 c Check that at the tracking centre the output of the front half of the envelope wave...

Page 30: ...o head Control head 2 I forhontalpositionadjustment See Fig 4 3 6 1 2 3 4 5 6 7 Play the alignment tape NTSC VHJ 0006 PAL VHJ 0009 Press the tracking buttons channel and channel simultaneously and set the tracking to the centre Using an oscilloscope observe the waveform of the video head output Loosen the two fixed screws on the audio RIP head ACE head by between 20 and 30 anticlockwise Using a sl...

Page 31: ...re not more than 20 of the value at the point where the envelope waveform amplitude is at its maximum Check that the envelope waveform is activated immediately when you switch from PLAY to R SEARCH or from R SEARCH to PLAY Check that there is no slack in the tape next to the pinch roller Check that the envelope waveform is activated immediately when you switch to PLAY from FF REW F SEARCH R SEARCH...

Page 32: ... JanJ 95 l1500 Printedin Japan SANYO Electric Co Ltd Osaka Japan ...

Page 33: ...A Mechanism mode EJECT G 1 Distinguished by whether the EP switch is ON or OFF Horizontal shift section Vertical shift section INITIAL Cleaner roller assembly ON Sfl mounting incline assembly pressure begins S mounting incline assembly pressure ends I the mechanism mode column are the codes on the crescent slide The principal mode switching states of the mechanism u 1 REVIEW IDLER pOS 2 Pinchrolle...

Page 34: ...F OFF S and T incline mounting assembly LO UNLO Cleaner roller assembly OFF OFF OFF ON ON OFF OFF OFF OFF OFF OFF d 2 2 3 HOW TO CHECK THE MECHANISM MODE POSITION You can tell which mode the mechanism is currently in by The edge of the looking at the codes and marking lines on the crescent crescent mounting Crescent mounting slide on the underside of the mechanism chassis The edge of the crescent ...

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