Preliminary SERVICE MANUAL DVD VIDEO RECORDER & VIDEO CASSETTE RECORDER 4 2004 YD006 DR-MV1SUC, DR-MV1SUS CABLE/DBS VCR TIMER TV DVD VCR TV/CBL/DBS /DVD /DVD DVD TIMER NUMBER / TV CH / DVD CH 1 3 2 ABC DEF 4 5 6 GHI JKL MNO 7 8 9 PQRS TUV WXYZ 0 CANCEL AUX MEMO/MARK PROG/CHECK DISPLAY ON SCREEN VCR PLUS+ ION IGAT U NAV EN PM TO PROGRESSIVE SCAN ME NU ENTER SE TU T RE P PREVIOUS SLOW STOP/ CLEAR REMAIN N UR NEXT PLAY/SELECT SLOW PAUSE REC REC MODE POWER ANGLE SUBTIT
SPECIFICATION DR-MV1SUC DR-MV1SUS GENERAL Power requirement AC 120 V, 60 Hz Power consumption Power on 43 W Power off 16.5 W Temperature Operating Storage Operating position Dimensions (W × H × D) Weight 5°C to 35°C (41°F to 95°F) -20°C to 60°C (-4°F to 140°F) Horizontal only 435 mm × 96 mm × 347 mm (17-3/16" × 3-13/16" × 13-11/16") 6.1 kg (13.
SECTION 1 PRECAUTION 1.1 SAFTY PRECAUTIONS 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.
1.1.2 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.
SECTION 2 SPECIFIC SERVICE INSTRUCTIONS 2.1 Service position This unit has been designed so that the Mechanism and Main board assemblies can be removed together from the bottom chassis. Before diagnosing or servicing the circuit boards, take out the major parts from the bottom chassis. 2.1.1 How to set the "Service position" (1) Refer to the disassembly procedure and perform the disassembly of the major parts before removing the Mechanism assembly.
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.
SECTION 3 DISASSEMBLY 3.1 Removing the major parts 3.1.1 Destination of connectors Two kinds of double-arrows in connection tables respectively show kinds of connector/wires. : Flat wire : Wire : Board to board (B-B) : The connector of the side to remove CONN. No. CONNECTOR PIN No. WR2a Main CN101 Digital CN761 40 WR2b Main CN103 Digital CN762 10 Destination of connectors CONN. No. CONNECTOR PIN No.
• When reattaching the Mechanism assembly, secure the screws (S3a to S3b) in the order of 1,2,3. • When reattaching the Mechanism assembly, be sure to align the phase of the Rotary encoder on the Main board assembly. • When reattaching the Mechanism assembly, set the “Mechanism assembling mode”. [See “MECHANISM ASSEMBLY SERVICE MANUAL (No. 86700)”.
NOTE (S1a) [4]DVD unit 1.Insert direction of FCC WIRE as follows. right side [1]Top cover back side supporting side electrode side (S1a) 2.FFC WIRE and DRUM FPC WIRE should be insert as follows. (S1a) NG OK (S1a) 90 CN CN [4]Bracket CN 3.Insert the wire to even the root of connector completely at the same time as inserting each wire. (S4a) b (S4a) 4.Check to see that outside parts.TOP COVER,BOTTOM COVER, FRONT PANEL, etc are fixed certainly to the BOTTOM CHASSIS with SCRWES.
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.
Digit-key Code 0 20 1 21 2 22 3 23 4 24 5 25 6 26 7 27 8 28 9 29 • 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. TENSION ARM CONTROL PLATE Stamping(a) Stamping(b) OK 4.
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 A B C D Roller driver 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].
4.3 Electrical adjustment Note: The following adjustment procedures are not only necessary after replacement of consumable mechanical parts or board assemblies, but are also provided as references to be referred to when servicing the electrical circuitry. In case of trouble with the electrical circuitry, always begin a service by identifying the defective points by using the measuring instruments as described in the following electrical adjustment procedures.
4.3.2.2 EE Y level Signal (A1) • Ext. input (A2) • Color (colour) bar signal Mode (B) • EE Equipment (C) • Oscilloscope PB/CB level Measuring point (D) • Y OUT (S terminal) EVR mode EVR address • • • • • (F1) (F2) (F3) (F4) (F5) Jig code “95” "ADJUST02 : **" Jig code “22” Jig code “18” or “19” (Channel +/-) Jig code “3C” Specified value (G) • 1.00 ± 0.02 Vp-p (terminated) Adjustment tool (H) • Jig RCU [PTU94023B] Y level H. rate Fig.
SECTION 5 TROUBLESHOOTING 5.1 Manually removing the cassette tape If you cannot remove the cassette tape which is loaded because of any electrical or mechanical failures, manually remove it by taking the following steps. (1) Unplug the power cord plug from the power outlet. (2) Refer to the disassembly procedure of the VCR and perform the disassembly of the major parts before removing the mechanism assembly. (See Fig. 5-1a) sion arm assembly free from tension, pull out the tape on the pole base assembly.
EMG display of FDP display mode (1) Transmit the code “59” from the Jig RCU. The FDP shows the EMG content in the form of “E:**:**”. E : 01 Latest EMG disk tray hole Fig.5-2a 5.3 Emergency display function (VHS SECTION) This unit saves details of the last two emergencies as the EMG history and allows the status of the VCR and the mechanism of each emergency to be shown both on the display and as OSD information.
AA BB PP : Deck operation mode (See EMG detail information <1>.) : Mechanism operation mode (See EMG detail of information <1>.) : Mechanism transition flag : Capstan motor control status : Loading motor control status : Sensor information (See sensor information details.) : Capstan motor speed : Key code (JVC code) : Supply reel winding diameter data higher 8 bits. : Supply reel winding diameter data lower 8 bits. : Mechanism sensor information & mechanism mode position(See EMG detail of information <1>.
5.3.4 EMG content description Note: EMG contents “E09” are for the model with Dynamic Drum (DD). FDP CONTENT CAUSE 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.
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> .
3- : Mechanism sensor information *5 : Cassette tape type <1> [Common table of MN* and HD*] Display 0123456789ABCDEF- Display Mechanism 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 Tab broken = 0 Tab present = 1 Start sensor End sensor ON ON ON ON OFF OFF OFF OFF ON ON ON ON OFF OFF OFF OFF Mechansim position sensor ON ON OFF O
5.4 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..
5.4.3 The exchange method of a tray fitting When DVD unit is exchanged, please transplant a tray fitting from an old drive, or change for a new tray fitting. 5.4.4 Initialization method Since the information on internal is as follows if it initializes, before enforcement, it is required to surely obtain the approval of a customer. All initial setting of DVD returns to an initial state. (1) Set the unit to theJIG RCU mode. (2) Set the unit to DVD mode.
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JVC SERVICE & ENGINEERING COMPANY OF AMERICA DIVISION OF JVC AMERICAS CORP. www.jvcservice.com(US Only) JVC CANADA INC. Head office : 21 Finchdene Square Scarborough, Ontario M1X 1A7 (No.
