JVC SR-DVM70AG Скачать руководство пользователя страница 14 | Manualshive

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1-14 (No.YD049)

4.3

Mechanism timing chart

See following table (Table 4-3-1).

Table 4-3-1

POLE BASE

ROTARY ENCODER

-20

CTL PLATE

MAIN BRAKE(SUP)

MAIN BRAKE(TU)

SUB BRAKE

PINCH ROLLER

EXIT GUIDE ARM

TENSION ARM

BAND ARM PLATE

CLUTCH LOCK

CENTERRING ARM

ROTARY
ENCODER

[2]

[1]

[3]

MAIN CAM

0

0

SUB CAM

ON

OFF

S/REV

PLAY

FF/REW

ON 1

ON 2

OFF

ON 1

ON 2

OFF

ON

OFF

ON(REV MODE PRESS UP)

ON(PLAY MODE)

OFF

OFF

ASSY

HALF LOADING

ON

OFF

OFF 2

OFF 1

ON

OFF 2

OFF 1

ON

SUP CENTRRING

S/REV

C-IN

ASSEMBLY

S. FF

LOADING END

PLAY

REV

STOP

FF/REW

0

15

33.33

40

40

15

166.66

140

140

193.33

160

160

226.66

185

185

273.33

220

220

306.66

245

245

36

17

169.66

87

190.33

196.33

223.66

229.66

270.33

276.33

303.66

30.33

36.33

MODE

PARTS

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Содержание SR-DVM70AG

Страница 1: ... CABLE SAT TV DVD PR NEXT PREVIOUS PAUSE REC REC MODE REMAIN DISPLAY ON SCREEN SLOW SLOW PLAY SELECT STOP CLEAR NAVIGATION TOP MENU RETURN ENTER MENU TV CBL SAT STANDBY ON TV TV AV VIDEO TV AUX CANCEL MEMO MARK PROGRAMME EDIT DUBBING LIVE JUMP SET UP SAT AUDIO SUBTITLE VPS PDC ANGLE LIVE CHECK PROGRESSIVE SCAN EJECT EJECT DISPLAY OPERATE DV HDD DVD REC MODE INSTANT REPLAY AUDIO DUB INSERT S VIDEO ...

Страница 2: ...S video output Y 1 0 Vp p 75 Ω C 0 3 Vp p 75 Ω DV 4 pin for DV IN OUT Component video output Y 1 0 Vp p 75 Ω CB CR PB PR 0 7 Vp p 75 Ω Corresponding to copy protection Remote Input Ø3 5 mm Digital audio output Optical 18 dBm 660 nm Coaxial 0 7 Vp p 75 Ω Corresponding to Dolby Digital and DTS Digital Surround Bit stream Selectable in digital audio output setting menu VIDEO AUDIO DVD deck Recording ...

Страница 3: ... 9 When a power cord has been replaced check that 10 15 kg of force in any direction will not loosen it Fig 1 1 2 10 Also check areas surrounding repaired locations 11 Products using cathode ray tubes CRTs In regard to such products the cathode ray tubes themselves the high volt age circuits and related circuits are specified for compli ance with recognized codes pertaining to X ray emission Conse...

Страница 4: ...lug prongs and externally ex posed accessible parts Use an AC voltmeter to measure across both terminals of load Z See Fig 1 1 9 and follow ing Fig 1 1 12 Fig 1 1 9 5 Grounding Class 1 model only Confirm specified or lower grounding impedance between earth pin in AC inlet and externally exposed accessible parts Video in Video out Audio in Audio out or Fixing screw etc Measuring Method Connect mill...

Страница 5: ...use the inner package carton only for transporting an HDD Do not stack package cartons one upon another 1 2 2 Handling an HDD in the stand alone status When handling an HDD on a hard workbench place an anti static mat rubber sheet or similar object on the hard surface to prevent any impacts occurring between the HDD and bench Do not stack the HDDs one upon another Do not knock an HDD with a hard o...

Страница 6: ...etween the workbench and the board assembly For the disassembly procedure of the major parts and details of the precautions to be taken see Removing the major parts If there are wire connections from the Main board and Mechanism assemblies to the other major parts be sure to remove them including wires connected to the major parts first before performing step 2 When carrying out diagnosis and repa...

Страница 7: ...ease set the unit to the user RCU mode after replacing the EEPROM Fig 2 3a User Jig RCU mode 2 3 1 Changing Remote Control Code 1 Slide the TV CABLE SAT DVD switch to DVD 2 Press the number key 1 of the remote control unit while pressing the SET UP button of the remote control unit Then press the ENTER button and then release the SET UP button 3 Press the POWER button on the unit to turn off the u...

Страница 8: ...Main Main Main Main Main CN3104 CN3102 CN5504 CN2201 CN2101 CN1405 CN5502 CN7108 CN7109 CN7121 CN7126 CN5304 CN5303 CN5301 CN5302 CN7127 CN3103 CN2602 CN701 CN901 CN951 CN952 CN1502 CN4001 CN1501 CN5501 CN5404 CN2601 CN501 CN3104 Operation jack Display switch DVD unit DVD unit HDD Junction Digital Digital Digital Digital DV jack Junction HDD Main Fun motor DV Main Junction Junction Junction Juncti...

Страница 9: ...BOARD ASSY CN2101 SWITCHING REGLATOR BOARD ASSY JUNCTION BOARD ASSY CN5504 CN5304 CN5501 CN7107 CN5303 CN5302 FAN CN5001 CN7106 CN4001 DV MAIN BOARD ASSY CN5403 CN5404 CN2601 CN501 CN3014 CN1001 CN3701 CN1503 CN1501 CN3501 CN5506 CN5501 CN902 CN951 CN701 CN901 CN2002 MAIN BOARD ASSY REAR JACK BOARD ASSY CN7127 CN1405 FW851 CN852 CN1003 NOTE WHEN YOU FIX ANY PWB WITH THE SCREW PUT IT ON THE JIGS NO...

Страница 10: ...t DV MAIN 14 Main board assembly 11 DV mechanism assembly j 5 DV jack board assembly 8 Junction board assemly 4 Digital board assembly S5a S4a S4a S4a S8a CN5001 CN5302 6 Switching regulator board assembly 7 HDD 7 SHEET 7 Bracket HDD S7a S7a S7a S7b S7b S7b S6a S6a S6a S3a S3a S3a S3a S3b S3b 3 Bracket 3 DVD unit 9 Rear jack board assembly 10 Rear cover S10a S9a S10a S10a L10a L10a L10a S10b S1a S...

Страница 11: ...embly such as screws washers and springs and the points 6 Notes for disassembly assembly 7 For the phase alignment in disassembly assembly and the parts which require phase adjustments after assembly see 4 7 Mechanism phase check adjustment 4 1 4 Screws and washers used in disassembly assembly of the mechanism assembly Table 4 1 2 shows the symbols and part numbers of the screws and washers used i...

Страница 12: ...t mode can be confirmed by the positioning of the marking on the sub cam gear and the marking on the mechanism See the following figures Figs 4 2 1 to 6 for details Note This mechanism assembly has another ASSEMBLY mode However this mode cannot be identified from the markings because it corresponds to an intermediate position between the C IN C mode and S FF H mode This mode can be confirmed by th...

Страница 13: ... No YD049 1 13 2 Setting checking the ASSEMBLY mode Fig 4 2 7 Motor bracket assembly Loading Motor Wire Brown Wire Red DC 3 V Rotary encoder Marking Colored red H C ASSEMBLY ...

Страница 14: ...RY ENCODER 2 1 3 MAIN CAM 0 0 SUB CAM ON OFF S REV PLAY FF REW ON 1 ON 2 OFF ON 1 ON 2 OFF ON OFF ON REV MODE PRESS UP ON PLAY MODE OFF OFF ASSY HALF LOADING ON OFF OFF 2 OFF 1 ON OFF 2 OFF 1 ON SUP CENTRRING S REV C IN ASSEMBLY S FF LOADING END PLAY REV STOP FF REW 0 15 33 33 40 40 15 166 66 140 140 193 33 160 160 226 66 185 185 273 33 220 220 306 66 245 245 36 17 169 66 87 190 33 196 33 223 66 2...

Страница 15: ...ail Supply assembly T 4 5 8 S2 2 L13 10 Position alignment 21 20 Base plate assembly T 4 5 8 S2 2 L14 22 21 Ent guide base assembly T 4 5 9 S2 23 22 Worm wheel 2 T 4 5 9 11 Phase alignment 24 23 Timing belt T 4 5 9 25 24 Center gear assembly T 4 5 9 26 25 Reel drive pulley assembly T 4 5 10 W1 27 26 Push plate T 4 5 10 W1 28 27 Clutch lock gear 2 T 4 5 10 29 28 Clutch lock gear 1 T 4 5 10 P6 30 29...

Страница 16: ...1 16 No YD049 Fig 4 4 1 2 19 42 1 18 41 3 17 12 16 36 20 4 32 26 10 33 24 13 28 21 11 22 8 34 35 14 37 7 29 30 23 9 25 5 15 38 39 31 6 40 TOP VIEW ...

Страница 17: ... Note 2a If wires are connected to the circuit board remove them be fore disassembly Note 2b Be careful not to damage the drum assembly when remov ing it Note 2c The bracket DV may come in the way of removal of screw 7 Be sure to remove the bracket before proceeding to the screw removal Fig 4 5 2a 1 S1 2 S1 L2 L4 L5 L1 L3 Note1a A B 5 S2 3 S2 4 S2 7 S2 6 S2 9 S2 8 S2 Note2a Note2a Note2c Note2b 2 ...

Страница 18: ... on the charge arm assembly Note 4b When attaching or removing this part take care of the han dling of the band section Note 4c After fitting the spring on the shaft engage it with hook a first then with hook b After attaching it set it to the positioning shown in Step 3 and confirm that band arm plate sub assembly 7 can be ro tated in the direction of the arrow as shown below 13 S2 L6 L6 Note3a a...

Страница 19: ... When attaching the sub deck assembly make sure to adjust the phase of the control plate Fig 4 5 6a Fig 4 5 6b W1 Note5a 10 9 Exit guide arm assembly Charge arm assembly Gear alignment Exit guide arm assembly Arm gear 2 assembly This protrusion is combined to the dent of Charge arm assembly 18 S2 15 S2 16 S2 17 S2 L10 L11 P4 P5 Note6a 13 12 11 Main brake Supply OK NG spring hooked reverse side Mai...

Страница 20: ...18 Guide rail Take up assembly 19 Guide rail Supply assembly 20 Base plate assembly Fig 4 5 8 Note 8a When attaching set the alignment markings of the two gears so that the markings face opposite to each other Fig 4 5 8a L12 L12 19 S2 14 17 15 16 11 25 S2 20 S2 21 S2 24 S2 22 S2 23 S2 L13 L14 Note8a 20 19 18 19 18 ...

Страница 21: ...1 confirm that pushes 26 from the top and hit to MAIN DECK If there are a rattling or inclination in 26 reconfirm the attachment of P6 Take care to the ob lique insertion of P6 Note 10b Attach P6 straight for it which does not get on on the flange of 28 26 S2 Note9a 21 22 23 24 23 Phase alignment Mark Red 22 34 Align the phase of the rotary encoder assembly 34 then attach it by aligning the phase ...

Страница 22: ...29 Brake control arm assembly 30 Fig 4 5 11a Note 11b How to attach the charge arm assembly 31 Fig 4 5 11b L17 L16 L15 W1 Note11a Note11b 30 29 31 27 S2 28 S2 32 33 34 30 29 35 Boss Phase alignment Align the phase of the main cam 35 then attach it by fitting the bosses into the cam slot Boss Phase alignment Phase alignment 38 31 39 Align the phase of the sub cam 38 then attach it by fitting the bo...

Страница 23: ...be removed by displacing it in the direction of the ar row Fig 4 5 13c 30 S2 L18 W1 29 S2 Note13a Note13b Note13c Note13b Note13b Collar 34 37 36 35 Phase alignment Mark colored red 34 35 Align the phase of the main cam 35 then attach it by placing the red coloured markings on 2 gear teeth within the encircled area Phase alignment Phase alignment Phase alignment Boss Boss 36 35 37 Align the phases...

Страница 24: ...sembly when the phase is aligned correctly The clutch lock lever assembly can be re moved by displacing it in the direction of the arrow Fig 4 5 14b 31 S2 L19 Note14a Note14a Note14a Note14b 38 40 39 32 S2 33 S2 34 S2 P7 Adjust nut 42 41 Phase alignment Phase alignment Phase alignment Boss 38 39 40 Align the phases of the arm gear 2 assembly 39 and clutch lock lever assembly 40 then attach them by...

Страница 25: ...26 B 28 39 5 31 25 33 9 21 13 11 14 15 16 6 2 38 42 3 19 41 37 32 1 18 10 4 W2 P3 14 S3 15 S2 23 S2 22 S2 10 S2 11 S2 3 S2 4 S2 24 S2 5 S2 12 S2 34 S2 27 S2 28 S2 P7 ADJ NUT 32 S2 33 S2 26 S2 30 S2 25 S2 29 S2 W1 W1 W1 W1 W1 Collar P6 W1 31 S2 20 S2 18 S2 21 S2 17 S2 7 S2 9 S2 8 S2 6 S2 19 S2 13 S2 W1 16 S2 ...

Страница 26: ...4 5 9a Arm gear 1 assembly See Fig 4 5 13b Rotary encoder assembly See Figs 4 5 9a and 4 5 13a Main cam See Figs 4 5 13a and 4 5 13b Centering arm assembly See Fig 4 5 13b Clutch lock lever assembly See Fig 4 5 14a Arm gear 2 assembly See Fig 4 5 14a Sub cam See Fig 4 5 14a 36 22 34 35 37 40 38 39 ...

Страница 27: ...Motor bracket assembly 3 Middle catcher assembly 17 Control plate 18 Guide rail Take up assembly 19 Guide rail Supply assembly 6 Sub brake assembly 24 Center gear assembly 27 Clutch lock gear 2 29 Tension control arm assembly 30 Brake control arm assembly 35 Main cam 36 Arm gear 1 assembly 26 Push plate 25 Reel drive pulley assembly 37 Centering arm assembly 28 Clutch lock gear 1 38 Sub cam 5 S2 3...

Страница 28: ... Tension arm sub assembly 9 EXIT guide arm assembly 10 Swing arm assembly 21 Ent guide base assembly 22 Worm wheel 2 23 Timing belt 31 Charge arm assembly 32 Connect gear 2 33 Connect gear 2 34 Rotaly encoder assembly 39 Arm gear 2 assembly 40 Clutch lock lever assembly 41 Capstan motor 42 Drum base deck 12 Main Brake Supply assembly 13 Main Brake Take up assembly 14 Reel disk assembly Supply 16 P...

Страница 29: ... the PLAY mode See 4 2 2 Mechanism modes 2 Loosen a screw A 3 Check the location of the tip section B of the tension arm assembly to make sure that it is within area C If it is located outside turn part D to bring it within the spec ified area 4 Tighten the screw A Note Tightening torque for the screw A 0 06 N m 0 6kgf cm D section Tension arm sub assembly screw A C B section ...

Страница 30: ...10 2 4 10 2 3 Setup for computer adjustment Fig 4 10 3 Linearity adjustment PB Switching point adjustment Error rate adjustmenmt Drum replacement Required Note 1 Required Required Transport part replacement Required Note 1 Not Check Transport part drum repair Required Note 1 Not Check IC4001 PRE REC amp on DV MAIN board replacement Not Not Check IC2001 PB EQ on DV MAIN board replacement Not Not Re...

Страница 31: ... Note 3 Connect an oscilloscope CH Slope and while triggering it with the HID signal observe the ENV OUT The linearity adjustment is complete if the PB ENV waveform is ideally stable and varies ideally according to the tracking variation To close play a prerecorded tape and check the audio and video Is the PB ENV waveform ideally stable and does it vary ideally according to the tracking variation ...

Страница 32: ...revent separation of the pattern 3 The connectors are fragile Be careful when plugging or un plugging a wire 4 11 2 Equipment required for adjustment Personal computer Windows compatible Color monitor Oscilloscope 2 CH 100 MHz or more Frequency counter 4 11 3 Tools required for adjustments Fig 4 11 1 4 11 4 Setup 1 Setup for computer adjustment Setup by extending the jig connector Fig 4 11 2 Align...

Страница 33: ...e code F4 from the Jig RCU to adjust so that the Y level of the V OUT waveform becomes the specified value G 5 Release the EVR mode of the VCR by transmitting the code F5 from the Jig RCU again When the EVR mode is released the adjusted data is memorized Fig 4 12 2 EE Y level 4 12 1 3 EE composite burst level 1 Observe the V OUT waveform at the measuring point D 2 Set the VCR to the EVR mode by tr...

Страница 34: ...eased the adjusted data is memorized Fig 4 12 5 EE component PB CB level 4 12 2 Syscon circuit 4 12 2 1 Timer clock 1 Connect the frequency counter to the measuring point D1 2 Connect the short wire between the short point D2 and Vcc 5V 3 Short the leads of capacitor D3 once in order to reset the microprocessor of the Syscon 4 Disconnect the short wire between the short point D2 and Vcc then conne...

Страница 35: ... grease on it 3 If the tape is slack wind it up by turning the shaft on the top side of the capstan motor in the direction of the arrow using a pointed tool chip IC replacement jig This operation may be difficult because the shaft is located below the housing motor of the cassette housing assembly Be careful not to damage parts during it 4 After confirming that the tape is fully wound up take out ...

Страница 36: ... information 1 2 show the informa tion on the latest EMG It becomes when there is no latest EMG record EMG display of FDP display mode 1 Transmit the code 43 59 from the Jig RCU The FDP shows the EMG content in the form of E 2 Transmit the code 43 59 from the Jig RCU again The FDP shows the EMG detail information 1 in the form of DD and EE 3 Transmit the code 43 59 from the Jig RCU once again The ...

Страница 37: ...an could not start or the capstan rotation has stopped due to too large load on the tape because 1 The tape tension is abnormally high mechanical lock 2 The tape is damaged or a foreign object grease etc is adhered to the tape occu E 10 00 Drum FG When the drum FG pulse has not been input for more than 4 seconds in the drum rotating mode E 10 00 is identified the pinch rollers are turned off and s...

Страница 38: ...USE RETAKE FF RETAKE REW REHEARSAL UNLOADING STOP REHEARSAL EJECT REHEARSAL LOADING STOP REC REC PAUSE DV REC DV REC PAUSE VIDEO INSERT VIDEO INSERT PAUSE SOFT PAUSE 1a 1b 1c 1d 1e 3a 5a aa ba 7F 6F 5F 4F 3F 2F 1F 0F FF EF DF CF BF AF 9F POWER OFF REC LOCK 1ST REC LOCK REC POWER OFF REQUEST POWER OFF REQUEST2 WAIT NO DATA FWD SEARCH high speed FWD SEARCH middle speed FWD SEARCH low speed FWD PLAY ...

Страница 39: ...the ones described above are not used in service work OK SELECT SELECT WITH THEN PRESS ENTER PRESS 8b TO EXIT System Info Version Info 1 Version Info 2 NAVI Info Initialize Application Software Version Middle Ware Software Version Syscon Software Version Boot Loader Software Version 0 39 0901 0 88 1 2 192 EXIT OK SELECT SELECT WITH THEN PRESS ENTER PRESS 8b TO EXIT System Info Version Info 1 Versi...

Страница 40: ...tray is ejected and then transmit 43 70 with the Jig remote control unit Then the FDP indicator changes from UPDATE to the normal display 7 Close the tray and turn the unit OFF Pull out the power code from the wall socket then plug the power cord into the wall socket again 8 When LOADING in the FDP indicator disappears turn the unit ON 9 Display the SYSTEM INFO menu and check the version of the fi...

Страница 41: ...5 4 6 Setting after the drive unit replacement When the drive unit is replaced it is necessary to set a region code Service drive units for replacement are not set for any region code and they are in an indefinite condition Make sure to set region code after attaching the drive unit to the unit Without the setting of the region code discs that have regions cannot be played back 5 4 6 1 Creating a ...

Страница 42: ...s an exchangeable file name Be sure to write the disk in Disk at once mode 5 4 7 2 Booting using the Disk The following explanation is made assuming the system operation is being unable with LOADING repeatedly displayed 1 Disconnect the AC plug and then connect it again Immediately after this press and hold the DVD ON OFF button until the tray comes out 2 Put the booting disk on the tray and close...

Страница 43: ... No YD049 AV MULTIMEDIA COMPANY DIGITAL VIDEO STORAGE CATEGORY 12 3 chome Moriya cho kanagawa ku Yokohama kanagawa prefecture 221 8528 Japan Victor Company of Japan Limited VPT Printed in Japan ...

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