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JVC DR-MV1S, size: 8.3 MB
JVC DR-MV1sus-dr-mv1 Instruction Manual
User reviews and opinions
|cohilsenrath||7:11am on Thursday, October 21st, 2010|
|poor deal I got took for a ride on this deal. Got sent the wrong item and when I returned it. I did not get refuned my $12.|
|AceBain||7:25am on Tuesday, September 21st, 2010|
|JVC knows about the "Loading" problem and is upgrading them under full warranty. Contact them at 781-376-9100|
|vizze||3:13am on Saturday, August 14th, 2010|
|I got one of these units on eBay from a guy w... Great picture for DVD side with component connectors Analog tuner, no elect button on remote.|
|somich||6:18am on Sunday, August 8th, 2010|
|Worst purchase decision ever!! The first one I received came broken . . .the second one worked for 4 months, then stopped playing DVDs. Terrible Experience - Unit has never been right Bought this unit in late 2004 and spent mearly $500...|
|DanInKtown||7:58am on Thursday, July 1st, 2010|
|I have had this unit for about 1 yr that I bo... The front inputs it over heats alot, the dubbing is very poor from vcr to dvd.|
|simon_mcf||5:48pm on Thursday, June 24th, 2010|
|Worst purchase decision ever!! The first one I received came broken . . .the second one worked for 4 months, then stopped playing DVDs.|
|cheater||11:52pm on Monday, June 21st, 2010|
|It just didnt work! Waste of money. After a ... I didnt find anything I really liked about it. I wish that I had heed the warning(s) of horr... 6 Months realitively proper function. 350 Paper weight. Crap...Crap...Crap!!!!!!!!!|
|ndodd||5:45pm on Thursday, May 6th, 2010|
|Recording is very simple. Flukey, very unstable. Recording is very simple. Flukey, very unstable.|
|DvlMn335||9:07am on Tuesday, April 20th, 2010|
|My unit is 8 months old and i bought it from Miller Bros. Electrical in Newcastle who have just gone bust and closed down. Bought my first unit in October 2004 and it arrived dead. I returned it to BE Direct without any problems and they checked it. Bought my first unit in October 2004 and it arrived dead. I returned it to BE Direct without any problems and they checked it.|
Comments posted on www.ps2netdrivers.net are solely the views and opinions of the people posting them and do not necessarily reflect the views or opinions of us.
FIBER BROADCAST CART OPERATION AND SETUP for Bartow Elementary, Middle, and Senior
(with JVC DR-MV1 combo deck and JVC DVS3U) 1. Connect white cable from the incoming fiber wall outlet (also white) into DVD In on the DVD player. (If the player is missing, connect it directly to the TV) 2. Connect grey cable outgoing fiber wall outlet (also grey) into the RF Out on the modulator. 3. With everything plugged into the UPS battery backup, turn on both of the monitors, the DVD/VCR combo deck, the audio mixer, and the camera. Also make sure that the channel 2 modulator is plugged in; it has no on/off switch. 4. Tune top TV to channel 4. This TV will be used to view the incoming signal. 5. Tune bottom TV to channel 2. This TV will be used to view outgoing signal. 6. On the DVD players remote, move the slider button in the upper right corner to DVD. This will make the remote control the DVD combo deck. 7. Hit the TV/DVD button in the lower left corner of the remote. That button tells the DVD combo deck to send its signal to the TV. 8. Using the keypad on the remote control, punch in the channel you want to watch (most district broadcasts are on channel 36). Adjust the volume on the top TV loud enough to hear the incoming signal but not so loud that you produce feedback from your microphone when your room is put on the air by the TV Studio. Position your microphone as far away from the cart as is possible because distance will greatly reduce feedback. 9. Verify that the Canon robotic camera is turned on and tune the JVC DVS3U (bottom deck) to L1. You should see your cameras picture on the bottom monitor. Temporarily turn up the bottom monitors sound and adjust the audio mixer and you should hear your microphone. Turn the bottom monitors sound back down after your sound check or you will get feedback during the broadcast. Be sure to leave the correct knobs and dials on the audio mixer up, however, or other schools will not be able to hear your microphone. 10. Make sure the Outgoing Fiber VCR in the media center is tuned to channel 2.
Note: some outgoing fiber VCRs are fed by A/B switches which must be set to the fiber cart position. If the DVD combo box is inoperative, turn it off and tune the top TV to the desired channel.
Bartow/Fort Meade Fiber Network Channel Assignments
CH School Bartow Senior Ft. Meade Senior Gause Academy CH School Lewis Elementary Gause Riverside Anna Woodbury Stephens Elementary Floral Ave. Elementary Gibbons St. Elementary Bartow Elementary Academy Polk Life & Learning
EERS Transportation Food Services
PCC GJHS Weather CNN GJHS GJHS GJHS GJHS County Office
Bartow Middle Union Academy
DVD VIDEO RECORDER & VIDEO CASSETTE RECORDER
CABLE/DBS VCR TIMER DVD TIMER TV DVD VCR TV/CBL/DBS /DVD /DVD NUMBER / TV CH / DVD CH
PROG/CHECK DISPLAY ON SCREEN
VCR PLUS+ ION IGAT U NAV EN PM TO PROGRESSIVE SCAN
REMAIN REC MODE
ANGLE SUBTITLE LIVE CHECK TV/VCR TV/DVD AUDIO CH TV VOL. TV
(MONO) L - AUDIO - R
<< SLOW >>
DR-MV1SUC, DR-MV1SUS [D3RV21]
For disassembling and assembling of MECHANISM ASSEMBLY, refer to the SERVICE MANUAL No.86700(MECHANISM ASSEMBLY).
TABLE OF CONTENTS
5 PRECAUTION. 1-3 SPECIFIC SERVICE INSTRUCTIONS. 1-5 DISASSEMBLY. 1-7 ADJUSTMENT. 1-10 TROUBLESHOOTING. 1-15
COPYRIGHT 2004 VICTOR COMPANY OF JAPAN, LIMITED
DR-MV1SUC GENERAL Power requirement Power consumption Power on Power off Temperature Operating Storage Operating position Dimensions (W H D) Weight VIDEO/AUDIO (DVD Deck) Recording format DVD-RAM: DVD Video Recording format DVD-R: DVD-Video format DVD-RW: DVD-Video format, DVD Video Recording format Maximum 8 hours (with 4.7 GB disc) (XP): Approx. 1 hour, (SP): Approx. 2 hours, (LP): Approx. 4 hours (EP): Approx. 6 hours, (FR): Approx. 1 hour - 8 hours Dolby Digital (2 ch), Linear PCM (XP mode only) MPEG2 (CBR/VBR) Y: 0.8 - 1.2 Vp-p, 75 , C: 0.2 - 0.4 Vp-p, 75 Y: 1.0 Vp-p, 75 , C: 0.3 Vp-p, 75 0.5 - 2.0 Vp-p, 75 (pin jack) 1.0 Vp-p, 75 (pin jack) -8 dB, 50 k (pin jack), Corresponding to mono (left) -8 dB, 1 k (pin jack) 4-pin for DV input Y: 1.0 Vp-p, 75 , CB/CR, PB/PR: 0.7 Vp-p, 75 Corresponding to copy protection Optical: -18 dBm, 660 nm, Coaxial: 0.7 Vp-p, 75 , Corresponding to Dolby Digital and DTS Digital Surround Bit stream Selectable in digital audio output setting menu NTSC color signal and EIA monochrome signal, 525 lines/60 fields DA4 (Double Azimuth) head helical scan system VHS NTSC standard 210 min. with ST-210 video cassette 630 min. with ST-210 video cassette 45 dB 230 lines 70 Hz to 10,000 Hz (Normal audio), 20 Hz to 20,000 Hz (Hi-Fi audio) RCA connectors: IN 2, OUT 1 Frequency synthesized tuner VHF: Channels 2 - 13, UHF: Channels 14 - 69, CATV: 113 Channels Channel 3 or 4 (switchable; preset to Channel 3 when shipped) 75 , unbalanced Approx. 5 seconds -20C to 60C (-4F to 140F) Horizontal only 435 mm 96 mm 347 mm (17-3/16" 3-13/16" 13-11/16") 6.1 kg (13.5 lbs) 5C to 35C (41F to 95F) 43 W 16.5 W AC 120 V, 60 Hz DR-MV1SUS
Audio recording system Video recording compression system Input/Output S-video input S-video output Video input Video output Audio input Audio output i.Link Component video output Digital audio output
VIDEO/AUDIO (VCR Deck) Signal system Recording system Format Maximum recording time (SP) (EP) Signal-to-noise ratio Horizontal resolution Frequency range Input/Output TUNER/TIMER Tuning system Channel coverage RF output Memory backup time ACCESSORIES Provided accessories RF cable 1, Infrared remote control unit, "AA" battery RF cable 3, Antenna splitter, Infrared remote control 2 unit, "AA" battery 2
Specifications shown are for SP mode unless otherwise specified. E.& O.E. Design and specifications subject to change without notice. VCR Plus+, C3 and PlusCode are registered trademarks of Gemstar Development Corporation. The VCR Plus+ system is manufactured under license from Gemstar Development Corporation. DSSTM is an official trademark of DIRECTV, Inc., a unit of GM Hughes Electronics. DISH NetworkTM is a trademark of Echostar Communications Corporation. Manufactured under license from Dolby Laboratories. "Dolby" and the double-D symbol are trademarks of Dolby Laboratories. "DTS" and "DTS Digital Out" are trademarks of Digital Theater Systems, Inc. (i.Link) refers to the IEEE1394-1995 industry specification and extensions thereof. The logo is used for products compliant with the i.Link standard.
SECTION 1 PRECAUTION
1.1 SAFTY PRECAUTIONS Consequently, when servicing these products, replace the cathode ray tubes and other parts with only the specified parts. Under no circumstances attempt to modify these circuits.Unauthorized modification can increase the high voltage value and cause X-ray emission from the cathode ray tube. (12) Crimp type wire connectorIn such cases as when replacing the power transformer in sets where the connections between the power cord and power trans former primary lead wires are performed using crimp type connectors, if replacing the connectors is unavoidable, in order to prevent safety hazards, perform carefully and precisely according to the following steps. Connector part number :E03830-001 Required tool : Connector crimping tool of the proper type which will not damage insulated parts. Replacement procedure a) Remove the old connector by cutting the wires at a point close to the connector.Important : Do not reuse a connector (discard it). Prior to shipment from the factory, JVC products are strictly inspected to conform with the recognized product safety and electrical codes of the countries in which they are to be sold.However,in order to maintain such compliance, it is equally important to implement the following precautions when a set is being serviced. 1.1.1 Precautions during Servicing (1) Locations requiring special caution are denoted by labels and inscriptions on the cabinet, chassis and certain parts of the product.When performing service, be sure to read and comply with these and other cautionary notices appearing in the operation and service manuals. (2) Parts identified by the symbol and shaded ( ) parts are critical for safety. Replace only with specified part numbers. NOTE : Parts in this category also include those specified to comply with X-ray emission standards for products using cathode ray tubes and those specified for compliance with various regulations regarding spurious radiation emission. (3) Fuse replacement caution notice. Caution for continued protection against fire hazard. Replace only with same type and rated fuse(s) as specified. (4) Use specified internal wiring. Note especially: Wires covered with PVC tubing Double insulated wires High voltage leads (5) Use specified insulating materials for hazardous live parts. Note especially: Insulation Tape PVC tubing Spacers Insulation sheets for transistors Barrier (6) When replacing AC primary side components (transformers, power cords, noise blocking capacitors, etc.) wrap ends of wires securely about the terminals before soldering.
cut close to connector
Fig.1-1-3 b) Strip about 15 mm of the insulation from the ends of the wires. If the wires are stranded, twist the strands to avoid frayed conductors.
Fig.1-1-4 c) Align the lengths of the wires to be connected. Insert the wires fully into the connector.
Fig.1-1-1 (7) Observe that wires do not contact heat producing parts (heatsinks, oxide metal film resistors, fusible resistors, etc.) (8) Check that replaced wires do not contact sharp edged or pointed parts. (9) When a power cord has been replaced, check that 10-15 kg of force in any direction will not loosen it.
Fig.1-1-5 d) As shown in Fig.1-1-6, use the crimping tool to crimp the metal sleeve at the center position. Be sure to crimp fully to the complete closure of the tool.
Fig.1-1-6 e) Check the four points noted in Fig.1-1-7.
Not easily pulled free Crimped at approx. center of metal sleeve
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 voltage circuits, and related circuits are specified for compliance with recognized codes pertaining to X-ray emission.
Conductors extended Wire insulation recessed more than 4 mm
1.1.2 Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original positions, Afterwards, perform the following tests and confirm the specified values in order to verify compliance with safety standards. (1) Insulation resistance test Confirm the specified insulation resistance or greater between power cord plug prongs and externally exposed parts of the set (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.).See table 1 below. (2) Dielectric strength test Confirm specified dielectric strength or greater between power cord plug prongs and exposed accessible parts of the set (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.). See Fig.1-1-11 below. (3) Clearance distance When replacing primary circuit components, confirm specified clearance distance (d), (d') between soldered terminals, and between terminals and surrounding metallic parts. See Fig.1-1-11 below.
d d' Power cord primary wire
(4) Leakage current test Confirm specified or lower leakage current between earth ground/power cord plug prongs and externally exposed accessible parts (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.). Measuring Method : (Power ON)Insert load Z between earth ground/power cord plug prongs and externally exposed accessible parts. Use an AC voltmeter to measure across both terminals of load Z. See Fig.1-1-9 and following Fig.1-1-12.
Externally exposed accessible part
Main board assy Regulator board assy Junction board assy Digital board assy Jack board assy
TP111 D.FF TP106 PB FM TP2253 A.PB FM TP4001 CTL.P
Switch display board assy
Operation jack board assy
Fig.2-1a 2.2 Jig RCU mode This unit uses the following two modes for receiving remote control codes. (1) User RCU mode:Ordinary mode for use by the user. (2) Jig RCU mode: Mode for use in production and servicing. When using the Jig RCU, it is required to set the VCR to the Jig RCU mode (the mode in which codes from the Jig RCU can be received). As both of the above two modes are stored in the EEPROM, it is required to set the VCR back to the User RCU mode each time that an adjustment is made or to check that the necessary operations have been completed.These modes can be set by the operations described below. Note: When the unit is set to JIG mode and when the unit is under JIG mode, the remote control unit attached to product operates only in "Remote Control Code 1". Since the unit is in "Remote Control Code 3" when it is shipped and just after its batteries are changed, "Remote Control Code 3" needs to be changed to "Remote Control Code 1." Confirm the RCU mode when exchanged parts. Since some SERVICE PARTS sets the VCR to the Jig RCU mode as initial setting. Therefore please set the VCR to the user RCU mode after replacing the EEPROM.
User RCU mode
Jig RCU mode
Fig.2-2a User/Jig RCU mode (No.YD006)1-5
2.2.1 Changing Remote Control Code (1) Slide the TV/CABLE/DBS/DVD switch to DVD. (2) Press the numeric button "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 unit. (4) Press the "PLAY" button on the unit for over 5 seconds while the unit is turned off. The code currently set appears on the front display panel. (5) Press the "STOP" button on the remote control to change the units code. When FDP indicator displays "DVD1," it means that the Remote Control Code has been changed to "1." 2.2.2 Setting the Jig RCU mode (1) Turn on the power. (2) Press the VCR/DVD button repeatedly on the unit so that the VCR lamp lights up on the unit. (3) Press the following remocon keys continuously within 2 seconds " SET UP " " 2 " " 8 " " ENTER ". When the VCR is set to the Jig RCU mode, the symbols ( " : " ) in the time display of the FDP are blinked. (Refer to Fig.2-2a User/Jig RCU mode) 2.2.3 Setting the User RCU mode (1) Turn off the power. (2) Press the "REC" and "PAUSE" buttons of the VCR simultaneously. Alternatively, transmit the code "9D" from the Jig RCU. 2.3 Mechanism service mode This model has a unique function to enter the mechanism into every operation mode without loading of any cassette tape. This function is called the "Mechanism service mode". 2.3.1 How to set the "Mechanism service mode" (1) Set the VCR to the Jig RCU mode (the mode in which codes from the Jig RCU can be received) (2) Transmit the code "E5" from the Jig RCU. (3) Release the lug of the Cassette holder and then slide the Cassette holder toward the direction where the Cassette holder is loaded by manually. (4) The cassette holder lowers and, when the loading has completed, the mechanism enters the desired mode. When the VCR is set to the Mechanism service mode, the symbols ("HDD") in the FDP (LED) are turned on. 2.3.2 How to exit from the "Mechanism service mode" (1) Unplug the power cord plug from the power outlet. 2.4 Maintenance and inspection 2.4.1 Cleaning Regular cleaning of the transport system parts is desirable but practically impossible. So make it a rule to carry out cleaning of the tape transport system whenever the machine is serviced. When the video head, tape guide and/or brush get soiled, the playback picture may appear inferior or at worst disappear, resulting in possible tape damage. Note: Absolutely avoid sweeping the upper drum vertically as this will cause damage to the video head. (1) When cleaning the upper drum (especially the video head), soak a piece of closely woven cloth with alcohol and while holding the cloth onto the upper drum by the fingers, turn the upper drum counterclockwise.
(S4b) (S9b) (S9b) (S9b) (S9a)
(S3c) (S3e) (S3d) (S10a)
Main board assembly
Digital board assembly
Jack board assembly
CN 50 01
<Phase alignment>. Accord the position of V gap on R.ENCORDER and PWB silk. Accord the position of Boss on R.ENCORDER and PWB silk
e e' c
e' e e e d
Regulator board assembly Junction board assembly
(L2a) (L2a) (L2a)
Cassette door <Note2b>
c e e d d k e b b
Front panel assembly
JACK BOARD ASSY
FW7504 CN8501 CN5302 CN7111 CN5301
MAIN BOARD ASSY
OPERATION JACK BOARD ASSY
SWITCH DISPLAY BOARD ASSY
(WR4b) <Note2a> (WR8a) <Note2a> CN5304 (WR7e)
CN7107 CN5501 JUNCTION
REGULATOR BOARD ASSY
NOTE)Pass slit PCB through wire.
NOTE) INSERT FFC WIRE TO THE CONNECTOR BEFORE ATTACHING TO FRONT PANEL.
Operation jack assembly CN7201 Switch display assembly CN7001 Switch display assembly CN7002
NOTE)Push the slack of the wire into the FW7001 side.
(WR7b) <Note2a> CN3102
DIGITAL BOARD ASSY
SECTION 4 ADJUSTMENT
4.1 Before adjustment 4.1.1 Precaution The adjustments of this unit include the mechanism compatibility and electrical adjustments. During the performance of this work, be sure to observe the precautions for each type of adjustment. If there is a reference to a signal input method in the signal column of the adjustment chart, Ext. S-input means the Y/C separated video signal and Ext. input means the composite video signal input. Unless otherwise specified, all measuring points and adjustment parts are located on the Main board. 4.1.2 Required test equipments Color (colour) television or monitor Oscilloscope: wide-band, dual-trace, triggered delayed sweep Signal generator: RF / IF sweep / marker Signal generator: stairstep, color (colour) bar [NTSC] Recording tape Digit-key remote controller(provided) 4.1.3 Required adjustment tools : Used --- : Not used
Mechanism compatibility adjustment Roller driver Jig RCU Back tension cassette gauge Alignment tape(MHP) Alignment tape(MHP-L)
Roller driver PTU94002 Jig RCU PTU94023B
Back tension cassette gauge PUJ48076-2
4.1.5 Switch settings When adjusting this unit, set the VCR mode and switches as described below. When using the Jig RCU, it is required to set the VCR to the Jig RCU mode (the mode in which codes from the Jig RCU can be received). (See "section 2 SPECIFIC SERVICE INSTRUCTIONS".)
Jig RCU [Data transmitting method] Depress the " "( 3 ) button after the data code is set.
INITIAL MODE CUSTOM CODE 43: A CODE DATA CODE
Fig.4-1 Jig RCU [PTU94023B] Set the switches as shown below unless otherwise specified on the relevant adjustment chart. The switches that are not listed below can be set as desired. If the VCR is not equipped with the functions detailed below, setup is not required.
AUTO PICTURE/VIDEO CALIBRATION/ B.E.S.T./D.S.P.C. PICTURE CONTROL/SMART PICTURE VIDEO STABILIZER TBC Digital 3R VIDEO NAVIGATION/TAPE MANAGER BLUE BACK OFF NORMAL/NATURAL OFF ON ON OFF OFF
4.1.6 Manual tracking mode (Auto tracking ON/OFF) setting (1) In order to set to the manual tracking mode during tape playback, press the SP/EP(LP)button on the remote control unit. Each press of the button switches the auto tracking ON or OFF. When the manual tracking mode is set, the tracking is placed at the center position. (2) Press channel +/- to adjust the tracking manually. 4.1.7 EVR Adjustment Some of the electrical adjustments require the adjustment performed by the EVR system. The main unit have EEPROMs for storing the EVR adjustment data and user setups. Notes: In the EVR adjustment mode, the value is varied with the channel buttons (+, -). The adjusted data is stored when the setting mode changes (from PB to STOP, when the tape speed is changed, etc.). Take care to identify the current mode of each adjustment item when making an adjustment. When changing the address setting in the EVR adjustment mode, use the Jig RCU or the remote controller having numeric keypad with which a numeric code can be directly input. The remote control code of the Jig RCU corresponds to each of the digit keys on the remote controller as follows.
Alignment tape (SP, stairstep, NTSC) MHP
Alignment tape (EP, stairstep, NTSC) MHP-L
4.1.4 Color (colour) bar signal,Color (colour) bar pattern
Color(colour) bar signal [NTSC]
White(100%) Yellow White(75%) Cyan Green Magenta Red Blue
Color(colour) bar pattern [NTSC]
100 IRE 1V
Burst 40 IRE
40 IRE Q Horizontal sync I
As the counter indication and remaining tape indication are not displayed FDP during the EVR adjustment mode, check them on the TV monitor screen. When performing the EVR adjustment, confirm that the FDP indication is changed to the EVR mode. 4.2 Mechanism compatibility adjustment (VHS SECTION) Notes: Although compatibility adjustment is very important, it is not necessary to perform this as part of the normal servicing work. It will be required when you have replaced the A/C head, drum assembly or any part of the tape transport system. To prevent damaging the alignment tape in the compatibility adjustment, prepare a cassette tape (for self-recording/playback), perform a test on it by transporting it and making sure that the tape is not bent by the tape transport mechanisms such as in the guide rollers.(See Fig.4-2b.) 4.2.1 Tension pole position Notes: This adjustment must be performed every time the tension band is replaced.
Signal Mode (A) Back tension cassette gauge [PUJ48076-2] (B1) PB (B2) Eject end Adjust pin [Mechansim assembly]
CONTROL PLATE Stamping(a)
Fig.4-2a 4.2.2 FM waveform linearity
Signal Mode Equipment Measuring point External trigger Adjustment part Specified value Adjustment tool (A1) (A2) (B) (C) (D) (E) (F) (G) (H) Alignment tape(SP, stairstep, NTSC) [MHP] Alignment tape(EP,stairstep,NTSC) [MHP-L] PB Oscilloscope TP106 (PB. FM) TP111 (D.FF) Guide roller [Mechanism assembly] Flat V.PB FM waveform Roller driver [PTU94002]
Adjustment part (F) Specified value (G)
(a) GUIDE ROLLER
(b) GUIDE POLE
4.2.4 A/C head phase (X-value)
Proper waveform variation
Signal Mode Equipment Measuring point External trigger Adjustment part Specified value Adjustment tool (A1) (A2) (B) (C) (D) (E) (F) (G) (H) Alignment tape(SP, stairstep, NTSC) [MHP] Alignment tape(EP,stairstep,NTSC) [MHP-L] PB Oscilloscope TP106 (PB. FM) TP111 (D.FF) A/C head base [Mechanism assembly] Flat V.PB FM waveform Roller driver [PTU94002]
Improper waveform variation Up Down
Guide roller (supply side)
Fig.4-2c 4.2.3 Height and tilt of the A/C head Note: Set a temporary level of the height of the A/C head in advance to make the adjustment easier after the A/C head has been replaced. (Refer to the SERVICE MANUAL No.86700 [MECHANISM ASSEMBLY].)
Signal Mode Equipment Measuring point (A) (B) (C) (D1) (D2) External trigger (E) Adjustment part (F) Specified value (G) Alignment tape(SP, stairstep, NTSC) [MHP] PB Oscilloscope TP106 (PB. FM) TP4001 (CTL. P) TP111 (D.FF) A/C head [Mechanism assembly] Maximum waveform
(1) Play back the alignment tape (A1). (2) Apply the external trigger signal to D.FF (E), to observe the V.PB FM waveform at the measuring point (D). (3) Set the VCR to the manual tracking mode. (4) Loosen the screws (4) and (5), then set the Roller driver to the innermost projected part of the A/C head. (See Fig. 42e.) (5) Rotate the roller driver so that the A/C head comes closest to the capstan. From there, move the A/C head back gradually toward the drum until the point where the FM waveform is maximized for the second time, and then tighten the screws (4) and (5) temporarily. (6) Play an alignment tape (A2) and set to the manual-tracking mode. (7) Fine-adjust A/C head base position to maximize the FM waveform, and then tighten the screws (4) and (5) firmly. (8) Play alignment tapes (A1) and (A2) and confirm that the FM waveforms are maximized when the tracking is at the center position.
To the drum Toward the capstan
Roller driver Screw (4) Head base
Toward the drum A/C head Screw (5)
Head base (2) (1) AUDIO OUT CTL.P (3)
(1) Play back the alignment tape (A). (2) Apply the external trigger signal to D.FF (E), to observe the AUDIO OUT waveform and Control pulse waveform at the measuring points (D1) and (D2) in the ALT mode. (3) Set the VCR to the manual tracking mode. (4) Adjust the AUDIO OUT waveform and Control pulse waveform by turning the screws (1), (2) and (3) little by little until both waveforms reach maximum. The screw (1) and (3) are for adjustment of tilt and the screw (2) for azimuth.
<Display> ** h * * * * * * * *
Encoder data (See Mechanism mode sequence.) Remote pause End sensor Start sensor Cassette tab present = 1 Cassette tab broken = 0
[For both MN*/HD*] Mechanism mode sequence
Mechanism mode - Encoder data
*FF:Sensor information details
LSA LSB LSC LSD
Encoder output = Low or Trerminal - GND = SHORT Encoder output = High or Trerminal - GND = OPEN
Encoder data (See Mechanism mode sequence.) Cassette tab present = 1 Cassette tab broken = 0 Cassette absent = 1 Cassette present = 0 Start sensor End sensor [For *HD only]
Position EJECT EJECT1 EJECT2 ULSTOP UPPER ONSTOP(PLAY) FWD/SS REV/SS OFFSTOP FFREW-BRAKE FFREW MIDDLE
Encoder data 0 h = h = h = h = h = h = h = h = h = h = 1001 A h = 1010 F h = 1111
AA DD GGGG I I KKKK ROM No.
BB EE HHHH JJJJ LLLL
: Key code (JVC code) : Deck operation mode(See EMG detail information <1>.) CC : Mechanism operation mode (See EMG detail information <1>.) DD : Sensor information (See sensor information details.) EE : Capstan motor speed (Search, double speed) FF : Tracking value GGGG : Cassette tape type <2>, 16 bits. (See EMG detail information <2>.) HHHH : Supply reel winding diameter data II : Capstan motor speed (FF/REW, double speed) JJJJ : Tape speed data, lower 8 bits. KKKK : General data display area LLLL : General data display area MMMM : General data display area *DD:Sensor information details
LSD LSC LSB LSA GND
5.3.4 EMG content description Note: EMG contents E09 are for the model with Dynamic Drum (DD).
E01: Loading EMG
If the mechanism mode does not change to the next mode within 4 seconds after the loading motor starts rotating in the loading direction, while the mechanism is in the after-loading position (with the tape up against the pole base), [E:01] is identified and the power is switched OFF. However, if the tape loading is not completed within 4 seconds after the loading motor starts rotating in the loading direction, the tape is simply unloaded and ejected. No EMG data is recorded in this case. When the mechanism mode cannot be changed to another mode even when the loading motor has rotated for more than 4 seconds in the unloading direction, [E:02] is identified and the power is turned off.
1. The mechanism is locked in the middle of the mode transition during a tape loading operation. 2. The mechanism overruns during the tape loading operation because the SYSCON cannot recognize the mechanism mode normally. This problem is due to a cause such as a rotary encoder failure. 3. Power is not supplied to the loading MDA. (M12V/Vcc/Vref/ICP are disconnected in the middle.)
E02: Unloading EMG
1. The mechanism is locked in the middle of mode transition. 2. Without an eject signal being sent from the SYSCON, unloading is attempted (i.e. Ejection is attempted while the tape is still inside the mechanism.) because the SYSCON cannot recognize the mechanism mode normally. This is due to a cause such as a rotary encoder failure. (Mechanism position: UPPER) 3. Power is not supplied to the loading MDA. (M12V/Vcc/Vref/ICP are disconnected in the middle.) 1. The take-up reel pulse is not generated in the FWD transport modes (PLAY/FWD SEARCH/FF, etc.) because; 1) The idler gear is not meshed with the take-up reel gear because the mechanism mal-functions for some reason. 2) The idler gear is meshed with the take-up reel gear, but incapable of winding due to too large mechanical load (abnormal tension); 3) The reel is rotating normally but an FG pulse is not generated due to the take-up reel sensor failure. 2. The supply reel pulse is not generated in the REV transport modes (REV SEARCH/REW, etc.) because; 1) The idler gear is not meshed with the supply reel gear because the mechanism mal-functions for some reason. 2) The idler gear is meshed with the supply reel gear, but incapable of winding due to too large a mechanical load (abnormal tension); 3) The reel rotates normally but the FG pulse is not generated due to a supply reel sensor failure. 3. Power(SW5V) is not supplied to the reel sensor on the tape winding side. 1. The drum could not start or the drum rotation has stopped due to too large a load on the tape, because; 1) The tape tension is abnormally high; 2) The tape is damaged or a foreign object (grease, etc.) adheres to the tape. 2. The drum FG pulse did not reach the System controller CPU because; 1) The signal circuit is disconnected in the middle; 2) The FG pulse generator (hall device) of the drum is faulty. 3. The drum control voltage (DRUM CTL V) is not supplied to the MDA. 4. Power (M12V) is not supplied to the drum MDA. 1. The cassette cannot be ejected due to a failure in the drive mechanism of the housing. 2. When the housing load increases during ejection, the loading motor is stopped because of lack of headroom in its drive torque. Housing load increasing factors: Temperature environment (low temperature, etc.), mechanism wear or failure. 3. The sensor/switch for detecting the end of ejection are not functioning normally. 4. The loading motor drive voltage is lower than specified or power (M12V) is not supplied to the motor (MDA). 5. When the user attempted to eject a cassette, a foreign object (or perhaps the user's hand) was caught in the opening of the housing. 1. The capstan could not start or the capstan rotation has stopped due to too large a 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 (occurrence of tape entangling, etc.). 2. The capstan FG pulse did not reach the System controller CPU because; 1) The signal circuit is disconnected in the middle; 2) The FG pulse generator (MR device) of the capstans is faulty. 3. The capstan control voltage (CAPSTAN CTL V) is not supplied to the MDA. 4. Power (M12V, SW5V) are not supplied to the capstan MDA. 1. The SW 5 V power supply circuit is shorted with GND. 2. The SW 12 V power supply circuit is shorted with GND. 1. The DVD unit is defective. 2. Contact failure of the wires in the DVD unit or VHS side. 1. 2. 3. 4. 5. 6. 7. 8. 9. The FG sensor is defective. (The soldered parts have separated.) The pull-up resistor at the FG sensor output is defective. (The soldered parts have separated.) Contact failure or soldering failure of the pins of the connector (board-to-board) to the FG sensor. The power (5V) to the sensor is not supplied. (Connection failure/soldering failure) The FG pulse is not sent to the System Controller CPU. The tilt motor is defective. (The soldered parts have separated.) The drive power to the tilt motor is not supplied. (Connection failure/soldering failure) The tilt motor drive MDA - IC is defective. Auto-recovery of the DD tilting cannot take place due to overrun.
1. The supply reel pulse is not generated in the FWD transport mode (PLAY/FWD SEARCH/FF, etc.) because; 1) PLAY/FWD or SEARCH/FF is started while the tape in the inserted cassette is cut in the middle; 2) A mechanical factor caused tape slack inside and outside the supply reel side of the cassette shell. In this case, the supply reel will not rotate until the tape slack is removed by the FWD transport, so the pulse is not generated until then; 3) The reel is rotating normally but the FG pulse is not generated due to a supply reel sensor failure. 2. The take-up reel pulse is not generated in the REV transport mode (REV SEARCH/REW, etc.). 1) REV SEARCH/REW is started when the tape in the inserted cassette has been cut in the middle; 2) A mechanical factor caused tape slack inside and outside the take-up reel side of the cassette shell. In this case, the take up will not rotate until the tape slack is removed by the REV transport, so the pulse will not be generated until that time; 3) The reel is rotating normally but the FG pulse is not generated due to a take-up reel sensor failure. 3. The power (SW 5V) to a reel sensor is not supplied.
EU1: Head clog warning history
Presupposing the presence of the control pulse output in the PLAY mode, when the value obtained by mixing the two V.FM output channels (without regard to the A.FM output) has remained below a certain threshold level for more than 10 seconds, [E:U1] is identified and recorded in the emergency history. During the period in which the head clog is detected, the FDP shows "U:01" and the OSD repeats the "3 seconds of warning display" and the "7 seconds of noise picture display" alternately. EMG code : "E:C1" or "E:U1" / FDP : "U:01" / OSD : "Try cleaning tape." or "Use cleaning cassette." The head clog warning is reset when the above-mentioned threshold has been exceeded for more than 2 seconds or the mode is changed to another mode than PLAY.
5.3.5 EMG detail information <1> The status (electrical operation mode) of the VCR and the status (mechanism operation mode/sensor information) of the mechanism in the latest EMG can be confirmed based on the figure in EMG detail information <1>. [FDP/OSD display] *1 : *2 : 34 *1 : Deck operation mode at the moment of EMG *2 : Mechanism operation mode at the moment of EMG 3- : Mechanism sensor information at the moment of EMG -4 : Mechanism mode position at the moment of EMG Note: For EMG detailed information <1>, the content of the code that is shown on the display (or OSD) differs depending on the parts number of the system control microprocessor (IC3001) of the VCR. The system control microprocessor parts number starts with two letters, refer these to the corresponding table. *1 : Deck operation mode
3- : Mechanism sensor information
[Common table of MN* and HD*]
Display 0123456789ABCDEFMechanism sensor informatio n REC safety SW Tab broken Tab broken Tab broken Tab broken Tab present Tab present Tab present Tab present Tab broken Tab broken Tab broken Tab broken Tab present Tab present Tab present Tab present Start sensor ON ON ON ON OFF OFF OFF OFF ON ON ON ON OFF OFF OFF OFF End sensor ON ON OFF OFF ON ON OFF OFF ON ON OFF OFF ON ON OFF OFF Mechansim position sensor ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF
*5 : Cassette tape type <1>
Display C3 D3 E1 E2 E9 F1 Cassette tape type <1> Cassette type not identified Large reel/small reel (T-0 to T-15/T-130 to T-210) not classified Small reel, thick tape (T-120) identified/thin tape (T-140) identified Large reel (T-0 to T-60) identified Small reel, thick tape (T-130) identified/thin tape (T-160 to T-210) identified Small reel, thick tape/C cassette (T-0 to T-100/C cassette) not classified Small reel, thick tape/C cassette (T-0 to T-100/C cassette) being classified Small reel, thick tape/C cassette (T-0 to T-100/C cassette) being classified C cassette, thick tape (TC-10 to TC-20) identified Small reel, thick tape (T-0 to T-100) identified C cassette, thin tape (TC-30 to TC-40) identified C cassette, thick tape/thin tape (TC-10 to TC-40) not classified
Tab broken = 0 Tab present = 1
Sensor ON = 0 sensor OFF = 1
Sensor ON = 0 Sensor OFF = 1
-4 : Mechanism mode position
Mechanism sensor information Display Deck operation mode
Notes: Cassette tape type <1> is identified a few times during mode transition and the identification count is variable depending on the cassette tape type. If an EMG occurs in the middle of identification, the cassette tape type may not be able to be identified. If other value than those listed in the above table is displayed, the cassette tape type is not identified. *6 : Cassette tape winding position The cassette tape winding position at the moment of EMG is displayed by dividing the entire tape (from the beginning to the end) in 21 sections using a hex number from 00 to 14. 00 : End of winding 14 : Beginning of winding FF : Tape position not identified *7 : Cassette tape type <2> (Winding area)
Display - - - 0C 06 - 0C 06 - 0C 07 - - 0B 0C - 0D 0D - 0F 0E - - - - - - - - - - - - - 1B Cassette tape type <2> Cassette type not identified C cassette, thick tape TC-10 Small reel, thick tape T-20 C cassette, thick tape TC-20P C cassette, thin tape TC-40 C cassette, thin tape TC-30 Small reel, thick tape T-40 Small reel, thick tape T-60 Small reel, thick tape T-80(DF-160) Small reel, thick tape T-90(DF-180) Small reel, thick tape T-100 Small reel, thin tape T-140 Small reel, thick tape T-120(DF-240) Small reel, thick tape T-130 Small reel, thin tape T-160 Small reel, thin tape T-210(DF-420) Small reel, thin tape T-180(DF-360) Small reel, thin tape T-168 Small reel, thick tape DF-300 Large reel T-20 Large reel T-30 Large reel T-40 Large reel T-60 (Reference) Word data (Beginning) (End) (0497 - 0506) (0732 - 0858) (05A9 - 0661) (0599 - 05FF) (0AA1 - 0C07) (0623 - 063D) (0C41 - 0CC3) (0611 - 0638) (0C0C - 0CB2) (07CC - 08E5) (09FD - 0B78) (0C20 - 0DFC) (0D31 - 0F3E) (0E43 - 107F) (10E1 - 120C) (1073 - 1313) (1185 - 1429) (12D3 - 141F) (1373 - 14C3) (1357 - 14C0) (1395 - 14EE) (13A8 - 14CE) (1536 - 1618) (1647 - 175A) (1759 - 189C) (1989 - 1B2F)
Even number (0, 2, 4, 6, 8, A, C, E)
Odd number (1, 3, 5, 7, 9, B, D, F)
-0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F -0 -1 -2 -3 -4 -5
Not established EJECT EJECT position EJECT-EJECT1 Intermodal position EJECT1 EJECT1 position EJECT1-EJECT2 Intermodal position EJECT2 EJECT2 position EJECT2-ULSTOP Intermodal position ULSTOP ULSTOP position ULSTOP-UPPER Intermodal position UPPER Loading (unloading) tape UPPER-ONSTOP Intermodal position ONSTOP PLAY position PLAY-FWD/SS Intermodal position FWD/SS FWD (FWD Still/Slow) position FWD/SS-REV Intermodal position REV REV (REV Still/Slow) position REV-OFFSTOP Intermodal position OFFSTOP Pinch roller OFF position OFFSTOP-FFREWB Intermodal position FFREWB FF/REW Brake position FFREWB-FFREW Intermodal position FFREW FF/REW position
5.3.6 EMG detail information <2> The type of the cassette tape and the cassette tape winding position can be confirmed based on the figure in EMG detail information <2>. Note: EMG detail information <2> is the reference information stored using the remaining tape detection function of the cassette tape. As a result, it may not identify cassette correctly when a special cassette tape is used or when the tape has variable thickness.
Note: The values of cassette tape type <2> in the above table are typical values with representative cassette tapes. 5.3.7 EMG detail information <3> Three deck operation modes preceding the deck operation mode in which the EMG occurs may be confirmed based on the figures in the EMG information detail <3>. For the contents of the displayed information, see the table "Deck operation mode" in section "5.3.5 EMG detail information <1>".
Display function of DVD section
5.4.1 Displaying SYSTEM INFO SYSTEM INFO contains information on firmware version of the unit and the mechanism drive, and an initialize execution menu. (1) Set the unit to the Jig RCU mode. (2) Transmit "8b" from the JIG RCU. (3) SYSTEM INFORMATION menu is displayed in the screen. (4) To move cursor in SYSTEM INFO, use the " ", " ", " ", and " " buttons of a remote control unit attached to product. (5) To quit the SYSTEM INFO menu, transmit "8b" from the JIG RCU. (6) Cancel JIG RCU mode.
SYSTEM INFO VERSION INITIALIZE INFORMATION
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