PANASONIC NV-DV2000 Service Manual

http://cxema.ru

SPECIFICATIONS

ORDER NO. VRD0006016C2

Digital Video Cassette Recorder

NV-DV2000EC

DJ-MECHANISM

http://cxema.ru

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

1100 Series 1200 Series 1500 Series VEP06D55A RF I/F SECTION IN MAIN 1500 Series VEP000D5B MOTOR DRIVE<DIGITAL (SYSTEM CONTROL&

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

VEP06D55A POWER SECTION IN MAIN

VEP01868A SUB POWER<POWER SECTION IN MAIN>

SERVO SECTION)>

http://cxema.ru

6000 Series 6100 Series 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

30000 Series VEP03F41A ANALOG Y/C

VEP03F39A DIGITAL (SYSTEM CONTROL& SERVO SECTION)

SECTION)>

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

1 VFK1507P ANALOG Y/C Connection

C.B.A.

2 VFK1509 36P Flat Cable

3 VFK1508 32P Flat Cable

4 VFK1509 36P Flat Cable

5 VFK1174 30P Flat Cable

6 VFK1284 24P Flat Cable

7 VFK1292 9P Flat Cable

8 VFK1282 22P Flat Cable

9 VFK1446 32P Flat Cable

10 VFK1445 26P Flat Cable

11 VFK1527 3P Extension Cable

12 VFK1529 2P Extension Cable

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

Main C.B.A.→ Analog Y/C C.B.A.

Main FP3401→ Digital FP3201

Main FP3402→ Digital FP3202

Main FP6201→ Digital FP6002

Digital FP6003→ Mech. Flex. (VES0914)

Digital FP3203→ Mech. (Head Amp)

Digital P2501→ Mech. (Cylinder)

Digital P2502→ Mech. (Capstan)

Main P7901→ Timer P7502

Main P7902→ Timer P7501

Digital P6001→ Switch P1502

Digital P6002→ Motor P1501

Q‘ty

Ejection

Remarks

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.

http://cxema.ru

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 in Mechanism unit.

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

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

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 in Main C.B.A..

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

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

http://cxema.ru

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 in

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.

Fig.2-5 Service Mode (Sample).)

Fig. 2-5 Service Mode (Sample)

(1) No.

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

1 Tape Beg/End sensor

checkup& Receiving key Command checkup

2 Mechanism position&

slot mode checkup

3 Self-Diagnosed record 1

(Latest)

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

process code. [Real-time]

Tape Beginning/End Detection data. [Real-time]

Mechanism position [Real-time]

Refer to the Fig. 2-8

Receiving Key command from both Remote controller& VCR. [Real-time]

Slot mode [Real-time]

These two digits (Data2) are meaningless although it might be changed.

At this mode, wh the Eject key is pressed mode th 3 seconds, it will the Electrical Adjustment Mod

Refer to the SELFDIAGNOSI MODE.

http://cxema.ru

(1)

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

No.

4 Self-Diagnosed record 2

(2nd Latest)

5 Self-Diagnosed record 3

(3rd Latest)

(To be continued.)

Refer to the Fig. 2-8

These two digits (Data2) are meaningless although it might be changed. These two digits (Data2) are meaningless although it might be changed.

Refer to the SELFDIAGNOSI MODE. Refer to the SELFDIAGNOSI MODE.

(1)

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

No.

6 LSI receiving command

Deck Mode LSI Mode [Real-time]

checkup

7 Mechanism Manual

operation

Mechanism Position (Real-time) (Same data with

Slot mode (Real-time (Same data with Service Mode 2)

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)

http://cxema.ru

Error Code

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

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

03 Loading Lock Mechanism Lock has been detected during

04 Unloading Lock Mechanism Lock has been detected during

05 Reel FG NG Abnormal Reel FG has been detected during

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

09 Communication Error

(Sys-Timer) 11 Head Clogging Head clogging has been detected. Head cleaning 14 Mode error Cassette down position has been detected during

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

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

19 Fan Motor Lock Fan motor does not rotate after turning power ON. Fan motor 51 S-Photo Tr Adj. Error

Condition Description Remedy/Check

Check the Cylinder

been detected during normal rotation.

position (Eject-Rev.).

loading operation.

unloading operation.

loading/unloading operation.

in/out operation. "SYSCON-TIMER" Communication error has been detected.

unloading operation.

rotation.

Adjustment Error. (Adjustment error of S-Photo Transistor sensitivity Adjustment.)

Cylinder Drive IC

Check the Capstan Capstan Drive IC Loading Post

Loading Post

Reel FG line

Slot Motor

Communication-line

Loading Motor Drive Mode Switch S-Reel

T-Reel

Re-adjustment is required. (Tape End Sensor Adjustment.)

(To be continued.)

Error Code

52 T-Photo Tr Adj. Error

53 S/T-Photo Tr Adj. Error

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.

Condition Description Remedy/Check

Adjustment Error. (Adjustment error of T-Photo Transistor sensitivity Adjustment.)

Adjustment Error. (Adjustment error of S/T-Photo Transistor sensitivity Adjustment.)

Re-adjustment is required. (Tape Beg. Sensor Adjustment.)

Re-adjustment is required. (Tape End/Beg. Sensor Adjustment.)

http://cxema.ru

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

http://cxema.ru

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

http://cxema.ru

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.(See

Fig. 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.

http://cxema.ru

3. ADJUSTMENT PROCEDURES

3.1. DISASSEMBLY/ ASSEMBLY PROCEDURES FOR CABINET PARTS,

C.B.A. AND MECHANISM UNIT

3.1.1. Disassemble Flow Chart for cabinet parts, C.B.A. and Mechanism Unit.

This flow chart indicates the disassembly steps the cabinet parts, C.B.A. and Mechanism Unit in order to access to items to be serviced. When reinstalling, perform the steps in reverse order.

Fig. 3-1 Flow Chart

Fig. 3-2

http://cxema.ru

3.1.2. Assemble/ Disassemble Procedures (for cabinet parts, C.B.A. and Mechanism

Unit)

No. ITEM/PART FIGURE REMARKS

1 Top Panel

2 Front Panel

3 Analog Y/C

C.B.A.

4 Timer C.B.A

5 DV Jack

C.B.A.

6 Mechanism

Unit

7 Digital C.B.A.

Fig. D1 2-Screws (A)

3-Screws (B)

Fig. D2

Fig. D3

Fig. D3 6-Screws (F) / 5-Tabs

Fig. D4 1-Connector (f) (P7602)

Fig. D3 3-Flexible Cable (g)

Fig. D5

Fig. D6

5-Tabs (a)

Note1:

2-Locking Tabs (b)

(d) / 2-Flexible Cable (e) / (P7901, P7902)

1-Screw (G)

(FP3401, FP3402, FP6201) 1-Screw (C) 2-Screws (D) 1-Connector (h) (P7601)

3-Flexible Cable (i) (FP3203, P2501, P2502) 2-Screws (H) 2-Screws (I) 1-Flexible Cable (j) (FP6003) 2-Connectors (k) (P6001, P6002)

http://cxema.ru

No. ITEM/PART FIGURE REMARKS

8 Head Rec

Amp C.B.A.

9 Rear Panel

and Fan Motor

10 Main C.B.A.

Fig. D7 1-Screw (J)

2-Screws (K) 1-Flexible Cable (l) (FP5001)

Fig. D3 Fig. D8

Fig. D3 3-Screws (E)

1-Connector (m) (P1001) 1-Screw (L) 7-Screws (M) 2-Tabs (n) 2-Tabs (p)

1-Tabs (o)

Fig. D1

Fig. D2

Fig. D3

http://cxema.ru

NOTE 1

NOTE 2

http://cxema.ru

Fig. D4

Fig. D5

Fig. D6

http://cxema.ru

Fig. D7

Fig. D8

http://cxema.ru

3.1.3. Assemble/ Disassemble Procedures of Slot-in Unit

3.1.3.1. Disassemble Section

Before proceeding the disassembling of the Slot-in unit, remove the mechanism unit from the chassis and remove the DIGITAL C.B.A. from the mechanism by referring the disassemble procedure describing in the previous section.

No. ITEM/PART FIGURE REMARKS

11 SLOT-IN

UNIT/MOTOR ANGLE/WORM WHEEL

INTERMEDIATE GEAR

13 SYNCHRO

-GEAR

14 OUTER SIDE

PLATE-T

15 SUB

RACK/T-MAIN RACK

INTERMEDIATE GEAR

17 GUARD

BLOCK / SPINDLE SHAFT (I)

Fig. D9-1 Fig. D9-2

Fig. D10

Fig. D11

Fig. D12

Fig. D13

Fig. D14

Fig. D15

2-Screws (N-1) 4-Screws (N-2)

1-Cut washer (q)

1-Hook (r)

4-Screws (O)

1-Cut washer (s)

Slide the guard block to arrow direction.

http://cxema.ru

No. ITEM/PART FIGURE REMARKS

18 OUTER SIDE

PLATE-S

19 SUB

RACK/S-MAIN

RACK 20 TOP PLATE

21 SIDE PLATE

S& T/GUARD

PANEL /

CASSETTE

HOLDER

UNIT/FRONT

GUIDE/BLIND

LEVER

Fig. D16

Fig. D17

Fig. D18

Fig. D19

2-Screws (P)

2-Screws (Q)

Fig. D9-1

Fig. D9-2

http://cxema.ru

Fig. D10

Fig. D11

http://cxema.ru

Fig. D12

Fig. D13

http://cxema.ru

Fig. D14

Fig. D15

Fig. D16

http://cxema.ru

Fig. D17

Fig. D18

Fig. D19

http://cxema.ru

3.1.3.2. Assemble Section

No. ITEM/PART FIGURE REMARKS

22 FRONT

GUIDE/SIDE

PLATE-S 23 CASSETTE

HOLDER

UNIT/GUARD

PANEL 24 "No.22"

unit/"No.23"

unit

25 SIDE

PLATE-T/BLIND

LEVER 26 "No.24"

unit/"No.25"

unit

27 "No.26"

unit/TOP

PLATE

28 "No.27"

unit/S-MAIN

RACK

29 "No.28"

unit/SUB

RACK 30 "No.29"

unit/OUTER

SIDE

PLATE-S

Fig. D20

Fig. D21

Fig. D22 4-Pins

Fig. D23 1-Pin

Fig. D24 4-Pins

Fig. D25 2-Hook (w)

Fig. D26 Fig. D27 Fig. D28

Fig. D29

Fig. D30 2-Hook (y)

Hook (t)

Upper groove Lower groove

1-Hole

Upper groove Lower groove

-----------------------------------------Hook (u) Groove (v)

2-Groove (x)

-----------------------------------------2-Screws (R) Gear Phase Alignment

Gear Phase Alignment

2-Groove (z)

-----------------------------------------2-Screws (S)

http://cxema.ru

No. ITEM/PART FIGURE REMARKS

31 "No.30"

unit/T-MAIN

RACK

32 "No.31"

unit/SUB

RACK 33 "No.32"

unit/OUTER

SIDE PLATE-T 34 "No.33"

unit/SPINDLE

SHAFT (I) 35 "No.34"

unit/SYNCHRO-GEAR

36 "No.35"

unit/INTERMEDIATE

GEAR 37 "No.36"

unit/GUARD

BLOCK 38 "No.37"

unit/MOTOR

ANGLE/WORM

WHEEL

Fig. D31 Fig. D32 Fig. D33

Fig. D34

Fig. D35

Fig. D36

Fig. D37 1-Hook (a1)

Fig. D38 2-Cut washer (a3)

Fig. D39

Fig. D40

Gear Phase Alignment

4-Screws (T)

1-Groove(a2)

Gear Phase Alignment

4-Screws (U)

Fig. D20

Fig. D21

http://cxema.ru

Fig. D22

Fig. D23

Fig. D24

http://cxema.ru

Fig. D25

Fig. D26

http://cxema.ru

Fig. D27

Fig. D28

Fig. D29

http://cxema.ru

Fig. D30

Fig. D31

http://cxema.ru

Fig. D32

Fig. D33

Fig. D34

http://cxema.ru

Fig. D35

Fig. D36

Fig. D37

+ 140 hidden pages