Panasonic NV-DV2000 Manuel utilisateur

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ORDER NO. VRD0006016C2

Digital Video Cassette Recorder

NV-DV2000EC

DJ-MECHANISM

SPECIFICATIONS

law.

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1. INTRODUCTION

This service manual contains technical information which will allow service personnel to understand and

service this model.

If the circuit is changed or modified, this information will be followed by supplementary service manual to be

filed with original service manual.

NOTE:

Adjustment procedures, Disassembly Procedures and Assembly Procedures for Mechanism Chassis are separated

volume from this Service Manual.

Please refer to the Service Manual for DJ-Mechanism Chassis. (Order No. VMD9706005A8)

1.1. CMPONENT REFERRENCE TABLE

If you have the reference number of each component and have no idea where it is, use the following table to

find out the C.B.A. and/or diagram.

Reference-Series- Located C.B.A. Name of Diagram Remarks

1000 Series VEP06D55A RF I/F SECTION IN MAIN

1100 Series

1200 Series

VEP06D55A POWER SECTION IN MAIN

1100 Series

1200 Series

VEP01868A SUB POWER<POWER SECTION IN MAIN>

1500 Series VEP06D55A RF I/F SECTION IN MAIN

1500 Series VEP000D5B MOTOR DRIVE<DIGITAL (SYSTEM CONTROL&

SERVO SECTION)>

2000 Series VEP03F39A DIGITAL (LSI MICON SECTION)

2500 Series VEP03F39A DIGITAL (SYSTEM CONTROL& SERVO SECTION)

3000 Series VEP03F39A DIGITAL (VIDEO 1 SECTION)

3100 Series VEP03F39A DIGITAL (VIDEO 1 SECTION)

3200 Series VEP03F39A DIGITAL (VIDEO 2 SECTION)

3600 Series VEP06D55A VIDEO SECTION IN MAIN

3700 Series VEP03F39A DIGITAL (DIGITAL I/F SECTION)

3900 Series VEP03F40A INPUT/OUTPUT

4000 Series VEP06D55A RF I/F SECTION IN MAIN

4200 Series VEP03F39A DIGITAL (VIDEO 1 SECTION)

4300 Series VEP06D55A AUDIO SECTION IN MAIN

4500 Series VEP03F39A DIGITAL (VIDEO 1 SECTION)

4700 Series VEP06D55A VIDEO SECTION IN MAIN

4800 Series VEP07A24A TIMER

4900 Series VEP06D55A RF I/F SECTION IN MAIN

4900 Series VEP03F40A INPUT/OUTPUT

4950 Series VEP06D55A RF I/F SECTION IN MAIN

5000 Series VEP05352A HEAD/ REC AMP

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6000 Series

6100 Series

VEP03F39A DIGITAL (SYSTEM CONTROL& SERVO SECTION)

6200 Series VEP06D55A RF I/F SECTION IN MAIN

7500 Series VEP07A24A TIMER

7600 Series VEP06D55A RF I/F SECTION IN MAIN

7650 Series VEP07A04A DV JACK<RF I/F SECTION IN MAIN>

ґ---- VEP000D6A SW<DIGITAL (SYSTEM CONTROL& SERVO

SECTION)>

30000 Series VEP03F41A ANALOG Y/C

2. GENERAL DESCRIPTIONS

2.1. SERVICE POSITION

2.1.1. Extension Cables

Use the following Extension Cables when checking individual circuit boards.

No. Part No. Part Name Connection Q‘ty Remarks

1VFK1507P ANALOG Y/C Connection

C.B.A.

Main C.B.A.→Analog Y/C

C.B.A.

2VFK1509 36P Flat Cable Main FP3401→Digital FP3201 1

3VFK1508 32P Flat Cable Main FP3402→Digital FP3202 1

4VFK1509 36P Flat Cable Main FP6201→Digital FP6002 1

5VFK1174 30P Flat Cable Digital FP6003→Mech. Flex.

(VES0914)

6VFK1284 24P Flat Cable Digital FP3203→Mech. (Head

Amp)

7VFK1292 9P Flat Cable Digital P2501→Mech.

(Cylinder)

8VFK1282 22P Flat Cable Digital P2502→Mech.

(Capstan)

9VFK1446 32P Flat Cable Main P7901→Timer P7502 1

10 VFK1445 26P Flat Cable Main P7902→Timer P7501 1

11 VFK1527 3P Extension Cable Digital P6001→Switch P1502 1

12 VFK1529 2P Extension Cable Digital P6002→Motor P1501 1

13 VFK1530 30P Flat Cable Mech. Flex. (VES0914) 1for Emagency Tape

Ejection

Fig. 2-1 Extension Cable

2.1.2. Service Position

2.1.2.1. Service Position for Analog Y/C C.B.A.

Fig. 2-2 Service Position for Analog Y/C C.B.A.

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2.1.2.2. Service Position for Digital C.B.A.

When checking the Digital C.B.A., remove the Mechanism unit with Digital C.B.A. from the frame. Then,

connect the extension cables as shown inFig. 2-3 Service Position for Digital C.B.A. and turn overthe

Mechanism unit.

Fig. 2-3 Service Position for Digital C.B.A.

2.1.2.3. Service Position for Main C.B.A.

When checking the Main C.B.A., take out the Mechanism unit with Digital C.B.A. and Main C.B.A. from the

frame. Then, connect extension cables as shown inFig. 2-4 Service Position for Main C.B.A. and turnover the

Main C.B.A..

Fig. 2-4 Service Position for Main C.B.A.

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2.2. SERVICE MODE

2.2.1. Setting the Service Mode

This VTR is equipped with the Service Mode, which is effective for servicing.To turn on the Service Mode,

press FF and EJECT button simultaneously in 3 seconds.(Indication of Front Panel Display is changed as

shown inFig.2-5 Service Mode (Sample).)

Fig. 2-5 Service Mode (Sample)

2.2.2. How to use the Service Mode

There are 8 kinds of Service Mode and the subject of each Service Mode is listed below.

Mode 0: Mevhanism process/position

Mode 1: Tape Beg/End Sensor& Receiving key command

Mode 2: Mechanism position& slot mode

Mode 3: Self-Diagnosed record 1 (Latest)

Mode 4: Self-Diagnosed record 2 (2nd Latest)

Mode 5: Self-Diagnosed record 3 (3rd Latest)

Mode 6: Receiving command at LSI

Mode 7: Mechanism Manual operation

The following chart shows the meaning of the each code.

To read/decode the Service Mode, use following chart.

(1)

No.

Group (2) Data 1 (3) Data 2 Remarks

0Mechanism position. VCR (Deck) Mode [Real-time] Mechanism driving position

process code. [Real-time]

1Tape Beg/End sensor

checkup& Receiving

key Command checkup

Tape Beginning/End Detection

data.

[Real-time]

Receiving Key command from

both Remote controller& VCR.

[Real-time]

2Mechanism position&

slot mode checkup

Mechanism position

[Real-time]

Slot mode [Real-time] At this mode, wh

the Eject key is

pressed mode th

3 seconds, it will

the Electrical

Adjustment Mod

3Self-Diagnosed record 1

(Latest)

Refer to the Fig. 2-8 These two digits (Data2) are

meaningless although it might

be changed.

Refer to the

SELFDIAGNOSI

MODE.

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(1)

No.

Group (2) Data 1 (3) Data 2 Remarks

4Self-Diagnosed record 2

(2nd Latest)

Refer to the Fig. 2-8 These two digits (Data2) are

meaningless although it might

be changed.

Refer to the

SELFDIAGNOSI

MODE.

5Self-Diagnosed record 3

(3rd Latest)

Refer to the Fig. 2-8 These two digits (Data2) are

meaningless although it might

be changed.

Refer to the

SELFDIAGNOSI

MODE.

(To be continued.)

(1)

No.

Group (2) Data 1 (3) Data 2 Remarks

6LSI receiving command

checkup

Deck Mode LSI Mode [Real-time]

7Mechanism Manual

operation

Mechanism Position

(Real-time) (Same data with

Service Mode 2)

Slot mode (Real-time (Same

data with Service Mode 2)

Fig. 2-6 Service Mode Decoding Table

2.2.3. Self- Diagnosis Mode

This VTR has a Self-Diagnosis function, which detects troubles when undesirable condition occurred.When

one of the following listed trouble is detected, Power is automatically turns off and its error is saved as the

"Error-Code" in Timer microprocessor (IC7501).(Threeerror codes can be memorized in historical order and

are backed up by the Lithium Battery;B7901.)

NOTE:

It is not automatically displayed on the Front Panel Display although trouble has been detected. (It means that user can

not be recognized what is happened.)

2.2.3.1. How To Confirm The "Error Code".

The Error Code can be confirmed on the Front Panel Display by placing the unit to the Service Mode 3, 4

and/or 5.

1. Turn on the Service Mode by pressing "FF" and "EJECT" buttons simultaneously in more than 3 seconds.

2. Select the Service Mode 3, 4 or 5 by pressing the "FF" and "EJECT" buttons simultaneously in certain time.The error

codes can be displayed Service Mode 3, 4 and 5 in historical order.

Service Mode 3 displays the last Error Code on the FIP.

Service Mode 4 displays the Error Code on the FIP, which is just before the error code displayed in Service Mode 3.

Service Mode 5 displays the Error Code on the FIP, which is just before the error code displayed in Service Mode 4.

NOTE:

Although same errors are occurred in several times, only first error code is memorized.(When the error is occurred, it is

compared with the memorized data. If the just occurred error is same as the memorized one, it is skipped to be

memorizing.)

Fig. 2-7 Error Code is displayed in F.I.P. (Example)

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Error

Code

Condition Description Remedy/Check

01 Cylinder Lock The cylinder does not rotate or Cylinder lock has

been detected during normal rotation.

Check the Cylinder

Cylinder Drive IC

02 Capstan Lock FG signal does not existed in the Cassette down

position (Eject-Rev.).

Check the Capstan

Capstan Drive IC

03 Loading Lock Mechanism Lock has been detected during

loading operation.

Loading Post

04 Unloading Lock Mechanism Lock has been detected during

unloading operation.

Loading Post

05 Reel FG NG Abnormal Reel FG has been detected during

loading/unloading operation.

Reel FG line

07 Slot Motor Lock Slot motor lock has been detected during slot

in/out operation.

Slot Motor

09 Communication Error

(Sys-Timer)

"SYSCON-TIMER" Communication error has

been detected.

Communication-line

11 Head Clogging Head clogging has been detected. Head cleaning

14 Mode error Cassette down position has been detected during

unloading operation.

Loading Motor Drive

Mode Switch

17 S-Reel Lock S-Reel Lock has been detected during normal

rotation.

S-Reel

18 T-Reel Lock T-Reel Lock has been detected during normal

rotation.

T-Reel

19 Fan Motor Lock Fan motor does not rotate after turning power ON. Fan motor

51 S-Photo Tr Adj. Error Adjustment Error.

(Adjustment error of S-Photo Transistor sensitivity

Adjustment.)

Re-adjustment is required.

(Tape End Sensor

Adjustment.)

(To be continued.)

Error

Code

Condition Description Remedy/Check

52 T-Photo Tr Adj. Error Adjustment Error.

(Adjustment error of T-Photo Transistor sensitivity

Adjustment.)

Re-adjustment is required.

(Tape Beg. Sensor

Adjustment.)

53 S/T-Photo Tr Adj. Error Adjustment Error.

(Adjustment error of S/T-Photo Transistor

sensitivity Adjustment.)

Re-adjustment is required.

(Tape End/Beg. Sensor

Adjustment.)

Fig. 2-8 Error Code (Displayed in Service Mode 3, 4 and 5)

2.2.4. Emergency Tape Ejection

If the electric circuit defects and no Tape ejection can be made in regular way, try following methods.There are

two methods to achieve the emergency tape ejection.

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1. Utilizing the Service Mode 7.

2. Utilizing the Extra DC power (batteries).

2.2.4.1. Utilizing the Service Mode 7

Procedures:

1. Remove the Top panel.

[Refer to the "Disassembly Procedures" section.]

2. Turn on the Service mode and select mode 7.

[Refer to the "Service Mode" section.]

In this mode, when the "STOP" button is pressed, loading motor rotates unloading direction.

Also when the "PLAY" button is pressed, loading motor rotates loading direction.

This action is effective only while either "STOP" or "PLAY" button is being pressed.

NOTE:

While loading/unloading operation, pay attention to the tape slack.

3. Press the "STOP" button until "7 02 00"(Cassette Down position) is displayed on the F.I.P. display.

Fig. 2-9

4. Be sure to confirm no tape slack and take up the tape slack by rotating Capstan with hand if necessarily.

5. Press the "STOP" button until "7 02 03"(Cassette Eject position) is displayed on the F.I.P. display.

Fig. 2-10

6. Take out the tape carefully.

2.2.4.2. Utilizing the Extra DC power (batteries)

Procedures:

1. Remove the Mechanism unit from the chassis.

[Refer to the "Disassembly Procedures" section.]

2. Remove the Digital C.B.A. from the Mechanism unit.

3. Remove the shield case of capstan unit.

4. Connect the Flexible card (VFK1530).

5. Supply the+B (4.5V) to VFK1530 to activate the unloading operation.

Loading.............Pin25,26 (+4.5V) Pin27,28 (GND)

Unloading.........Pin25,26 (GND) Pin27,28 (+4.5V)

In this case, stop supplying the power at just before the mechanism to be the unloading complete position (Tension post

is not retracted fully), otherwise, the tape slack can not be taken although capstan is rotated with hand.

6. Confirm that no tape slack and supply the power again to make full unloading position (Tension post is retracted fully).

Take up the tape slack by rotating Capstan with hand if necessarily.

7. Rotate the worm wheel with hand in counterclockwise, then take out the tape carefully.

Fig. 2-11

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Fig. 2-12

Fig. 2-13

2.3. OPERATING GUIDE

2.4. CAUTION FOR AC MAINS LEAD (FOR UK)

2.5. HOW TO REPLACE THE LITHIUM BATTERY

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2.5.1. Backup Battery B7901

This VTR equipped with the Backup Battery (B7901) to backup the following memorized data in the Timer

microprocessor (IC7501).

1. Setting condition of "VCR Functions"

OSD(AUTO/ON/OFF)

VCR display(ON/OFF/DIMMED)

Colour Mode(COLOUR/ B/W)

Comb filter (ON/OFF)

E-TBC (ON/OFF)

REC-DNR (LEVEL1/LEVEL2)

PB-DNR (LEVEL1/LEVEL2)

Remote (VCR1/VCR2/VCR3)

2. Setting condition of "Edit Functions"

Search with Sound (OFF/EDIT ONLY/ALWAYS ON)

Audio Mode(12bit/16bit)

One-Touch-Edit(OFF/ON)

Still Album(3-20seconds adjustable)

3. Clock& Date data

4. Self-Diagnosed Result Record (3 records)

2.5.2. Replacement Procedure

1. Remove the Top Panel and Mechanism unit with DIGITAL C.B.A.(VEP03F39A).(Refer to Disassembly Procedures).

2. Unsolder the Lithium Battery;B7901"CR2354-1GUF" and then replace it into new one.(SeeFig. B1)

Fig. B1

CAUTION:

The lithium battery is a critical component (Type No.: CR2354-1GUF Manufactured by Panasonic.) / It must never be

subjected to excessive heat or discharge. / It must therefore only be fitted in equipment designed specifically for its use. /

Replacementbatteries must be of the same type and manufacture. / They must be fitted in the same manner and location

as the original battery, with the correct polarity contacts observed. / Do not attempt to re-charge the old battery or re-use it

for any otherpurpose. / It should be disposed of in waste products destined for burial rather than incineration.

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