Panasonic NV-FJ710PM Bedienungsanleitung

ORDERNO. VRD0104024C7

Video Cassette Recorder

NV-FJ710PM

Z-MECHANISM

SPECIFICATIONS

Unauthorized copying and distribution isaviolation of law.

1. INTRODUCTION

This service manual contains technical information whichwill allowservice personnel to

understand and service this model.

If the circuit is changedormodified, this information will be followedbysupplementaryservice

manual tobe filedwithoriginal service manual.

Note:

Adjustment procedures, DisassemblyProcedures and AssemblyProcedures forMechanism

Chassis are separate volume fromthis service manual. / Please refertothe service manual forZ-

MechanismChassis. (OrderNo. VRD9802005C2)

2. GENERAL DESCRIPTIONS

2.1. SERVICECAUTION-1

Whenthe MicroprocessorIC6001 and/orBack-up batteryB6001 are replaced, readfollowing

procedure carefullyand proceedit.

[REASONS] / There is a RAM inthe IC6001, whichis backing up:

1. Programme Navigation Data

2. TV Tuning Data

3. PG Shifter Adjustment Data

4. Option Setting Data

WhenIC6001 and/orB6001 are replaced, all above listeddata become not available.

These data is backing up byusing the powersource of:

*AC Connected

:AC Power source

*AC Disconnected

:Back-up Battery(B6001)

2.1.1. REPLACING PROCEDURE [IC6001/B6001]

[1. PREPARATION]

Before replacing IC6001 and/orB6001:

-Take anote that store TV broadcast channels. / (Because, its user

maystore TV broadcasts bymanuallyother than “Auto Tuning”

operation and itisalso erased.)

-Back-up the Programme Navigation data. / (The Programme

Navigation data istransferablebyusing “Programme Navigation

Data Back-up Tool (VFK1493P)” (You maytake make itbyreferring

following schematicdiagram.)

-NECESSARY STATUS OFTHE VCR UNIT-

1. The IC6001 shouldbe comunicablewith the Programme Navi.

Back-up Tool. (VFK1493P)

2. The “NAVI”data has to be availableinIC6001.

NOTE:

During servicing, do not make short IC6001-pin37 (5V) with other

line/Components, otherwise, IC6001 maybe broken.

[2. HOW TO CONFIRM THE “NAVI.” DATA WITHOUTINSERTING A TAPE INTO VCR?]

1. Indicate the “NAVI”mark on the Front information Panel. / (Press

the Menu button and select the option, then set the “NAVI”to ON

mode.)

2. Turn on the Service Mode and press the “NAVI”button on the

Remote Controller inmore than 5seconds. / The “NAVI”date list

isdisplayed on the Monitor. / (Press the “MENU”button on

theRemote Controller for cancellation.)

[3. REPLACING PROCEDURE IN STEPS]

[STEP 1. PREPARATION]

1. Remove the C.B.A. with Mechanism unitbyreferring the

Disassemblyprocedure.

2. Connect the VFK1493P byreferring the following figure.

[STEP 2. “NAVI” DATA BACK-UP]

PROCEDURE F.I.P. DISPLAY

Turnon the Service Mode.

1. Press FF and EJECTkeys

/ simultaneouslyformore

than/ 3 seconds.

Turnon the Service Mode 2.

2. Press FF and EJECTkeys

intwice.

Turnon the Set-up mode.

3. Press the EJECTkeyfor

more than3 seconds.

Turnon the mode 6.

4. Press the CH UP keyin3

times.

Activate the Back-up.

5. Press the FF keyformore

than3 seconds.

(OK) “UP” is displayedwhen

the Back-up process has

beendone successfully.

(NG) “31” is displayedwhenthe

Back-up process has not

beendone successfully.

(“31” is displayedmainlywhenthe

connection failure and ROM failure of

VFK1493P occurred. Confirm themand try

again.)

[STEP 3. REPLACE THE IC6001 AND/OR B6001]

1. Disconnect the AC plug and replace the IC6001 and/or B6001. (Do

not make ashort circuitbetween IC6001-pin37 and other pins/

components.)

CAUTION:

*When replacing the B6001, be sure to read/follow the “HOWTO

REPLACETHELITHUMBATTERY” section.

[STEP 4. RESETTHE IC6001 ATONCE]

1. Connect the AC plug.

2. Connect ajumper wire between TL7510 and TW6090 (GND)for a

second to reset the Microprocessor IC6001.

Note:

Since the resistance at pin1as well as pin2of IC6001 decides the

model distinction data, no need to set up the Model code, which is

necessaryinprevious model.

[STEP 5. LINE INPUTSETTING]

1. Connect the 1.5Vbatteryto TL6010 or Pin6of IC6001 until the

FIPdisplaysunreadableirregular characters.

2. Disconnect the AC plug for few seconds and connect itagain.

3. Confirm that “A1” and “A2” can be displayed on the FIPby

pressing the CH UPand CH DOWNbuttons.

Note:

1. To set-up the “Plug inAuto Tuner Preset”, press the Channel up

and downkeyssimultaneouslyfor 3seconds.

2. Change the OSDsetting to the Factoryshipping condition if

necessary, byreferring following charts.

[STEP 6. NAVI. DATA WRITING/SAVING]

1. Connect the Prog. Navi. Data Back-up Tool (VFK1493P)

PROCEDURE F.I.P. DISPLAY

Turnon the Service Mode.

1. Press FF and EJECTkeys

/ simultaneouslyformore

than/ 3 seconds.

Turnon the Service Mode 2.

2. Press FF and EJECTkeys

intwice.

Turnon the Back-up mode.

3. Press the EJECTkeyin

more than3 seconds.

Turnon the Back-up mode 6.

4. Press the CH UP keyfor3

times.

Activate the NAVI. Data Writing.

5. Press the REW keyin

more than3 seconds.

(OK) “dn” is displayedwhen

the Back-up process has

beendone successfully.

(NG) “32” is displayedwhenthe

Back-up process has not

beendone successfully.

(“32” is displayedmainlywhenthe

connection failure and ROM failure of

VFK1493P occured. Confirm themand try

again.)

Reset the Service Mode.

Normal Indication

6. Press FF and EJECTkeys

/ simultaneouslyin6 times.

NOTE: Perform the PG SHIFTER ADJUSTMENT.

2.2. HOWTO REPLACETHELITHIUMBATTERY

2.2.1. GERNERALDESCRIPTION

There is a RAM inthe IC6001, whichis backing up the following data byusing the powersource

of B6001 (Back-up Battery).

1. Programme Navigation Data

2. TV Tuning Data

3. PG Shifter Adjustment Data

4. Option Setting Data

2.2.2. REPLACEMENTPROCEDURE

1. Remove the Top Panel and Mechanism unitwith MainC.B.A. by

referring the Disassembling Procedure.

2. Unsolder the Lithium Battery:B6001 “CR2354-1GUF” and then

replace itinto new one. (See Fig.B1)

Fig.B1

NOTE:

The lithium batteryisacritical component (Type No.:CR2354-1GUF

Manufactured byPanasonic.)

Itmust nerver be subjected to excessive heat or discharge.

Itmust therefore onlybe fitted inequipment designed specifically

for its use.

Replacement batteries must be of the same type and manufacture.

Theymust be fitted inthe same manner and location as the original

battey, with the correct polaritycontacts observed.

Donot attempt to re-charge the oldbatteryor re-use itfor anyother

purpose.

Itshouldbe disposeed of inwaste products destined for burial

rather than incineration.

2.3. SERVICECAUTION-2

2.3.1. CAUTION FOR AUTO TUNING

PROCEDURE

AutoTuning will start bythe following procedure.

1. Connect the DIN-RFCable.

2. Connect the AC Mains Lead.

3. Turn on the VCR. / Auto Tuning will start. / Auto Tuning searches

for TV stations from VHFminimum to UHFmaximum and

memorizes everytuned program position. Other program

positions are skipped.

Auto Tuning takes five or more minutes to complete its search.

Donot touch the VCR during Auto Tuning.

Auto Tuning will stop halfway, ifthe VCR isoperated or the aerial

lead and/or the mains lead are disconnected.

Incase the VCR stopped during Auto Tuning, the VCR have to be

reset and restarted. See the following item 2.

NOTE

1. Ifthe VCR isturned on with the antenna not connected, all

channelsare skipped. Therefore, firmlyconnect the antenna and

then turn the VCR off and on againto execute Auto tuning.

2. When Auto Tuning iscanceled halfway, Auto Tuning isnot

executed even ifthe VCR isturned off and then turned on again. /

Inthiscase, Auto Tuning have to be restarted bythe following

procedure.

A. Press EJECTand remove the Video cassette.

B. Keep UPand DOWNon the VCR pressed simultaneouslyfor 3

seconds or more during the VCR on. / The channel displayed

on the VCR displaydisappears for amoment then changes to 2.

C. Turn off the VCR and then turn iton. Auto Tuning commences.

3. Ifyou turn the VCR off during Auto Tuning, Auto Tuning will stop

halfway.

The VCR shouldbe reset and restarted bythe item 2inorder to

execute Auto Tuning.

4. Ifthe VCR starts playback during Auto Tuning, Auto Tuning will

stop halfway.

The VCR shouldbe reset and restarted bythe item 2inorder to

execute Auto Tuning.

5. To cancel Auto Tuning Mid-operation, press POWERduring Auto

Tuning (The VCR isturned off).

6. When the VCR ismoved to the other area or country, TV

broadcasts shouldbe stored again.

2.3.2. CHECKING OFMAIN C.B.A.

Whenservicing the MAIN C.B.A., take out the MAIN C.B.A. and mechanismfromthe frame and

turnover.

Fig. S3

2.3.3. REMOVALOFCASSETTE TAPE

There are 2 ways toremove a cassette tape.

1. Removal of compulsoryloading.

A. Press FF and EJECTbuttons simultaneouslyand set the

Service Mode 7.

B. Press STOPbutton inorder to unload the mechanism. (Payan

attention of tape slack)

Service Mode Indication:

7** ** (STOP) 700 ** (EJECT)

2. Removal of manual operation of Maincam gear.

A. Disconnect the AC power cord and remove Top Panel.

B. Rotate MainCam Gear to the clockwise and unload the

mechanism (Tape isremaining) (Fig. S4).

Fig. S4

C. Rotate the Poleof Capstan motor to the clockwise the from the

bottom inorder to remove the tape slag.

Fig. S5

D. Rotate MainCam Gear to the clockwise inorder to eject the

cassette tape.

2.3.4. CYLINDER UNITREPLACEMENT

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