Panasonic NV-SV120EC Manuale utente
ORDERNO. MABR0303006C2
Video Cassette Recorder
NV-SV120EB / NV-SV120EC / NV-SV120EP
Z-MECHANISM
SPECIFICATIONS
2003 Matsushita ElectricIndustrial Co., Ltd. All rights reserved.
Unauthorized copying and distribution isaviolation of law.
1. INTRODUCTION
1.1. INTRODUCTION
1
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:
1. Adjustment procedures, DisassemblyProcedures and Assembly
Procedures for Mechanism Chassisare separate volume from this
service manual. / Please refer to the service manual for Z-
Mechanism Chassis. (Order No. VRD9802005C2)
2. The Model No. isindicated on the SchematicDiagram and Circuit
Board Diagrams as follows.
Model No. Indication Mark
NV-SV120EB (EB)
NV-SV120EC (EC)
NV-SV120EP (EP)
1.2. ABOUTLEAD FREE SOLDER(PbF)
Distinction of PbF PCB:
PCBs (manufactured) using leadfree solderwill have a PbF stampon the PCB.
Caution:
-Pb free solder has ahigher melting point than standard solder,
Typicallythe melting point is50-70°F (30-40°C)higher. Please use
ahigh temperature soldering iron. Incase of soldering iron with
temperature control,please set itto 700±20°F (370±10°C)
-Pb free solder will tend to splash when heated too high (about
1100°F/600°C).
Whensoldering orunsoldering, please completelyremove all of the solderon the pins orsolder
area, and be sure toheat the soldering points withthe Pbfree solderuntil it melts enough.
2. GENERAL DESCRIPTIONS
2.1. SERVICECAUTION
2.1.1. REPLACING IC6002/EEPROM
Whenthe EEPROM: IC6002 is replaced, applicable model code, option code and electrical
adjustment data will not be available.
Therefore, enterand/oradjust the necessarydata afterreplacing IC6002 byreferring following
procedure.
2
STEP1.REPLACE THE IC6002
1. Remove the C.B.A. with Mechanism unitbyreferring the
Disassemblyprocedure.
2. Disconnect the AC plug and replace the IC6002.
STEP2.INPUTTHE MODEL& OPTION CODE
1. Set up the applicablemodel code and option code byordering the
following table.
PROCEDURE F.I.P. DISPLAY
Turnon the Service Mode
1.Press the FF keyand the
EJECTkeysimultaneouslyfor
more than3 seconds.
Activate the Service Mode 2
2.While keepplacing FF key,
press the EJECTkeyintwice.
Activate the Entering Mode.
3.Press the EJECTkeyformore
than3 seconds.
Set the Mode 2.
4.Press the CH UP keyintwice.
Displaythe Setting Code.
5.Press the POWER keytoturn
the poweron.
(Colon starts
flashing)
Enterthe Model and Option Code.
6.Service Screenis displayedon the monitor.
7.Set the applicable Model and Option code by
using REW, PLAY, STOP and FF keys on
theRemote Controller. (See Fig.S1 & S2)
Exit fromService Mode.
8.Press the POWER keytoturn
the poweroff.
9. Press FF and EJECTkeys
simultaneouslyin6 times.
(Normal
Indication)
Fig.S1 Service Screen(sample)
3
Model No. MC OC1 OC2
NV-SV120EB 63h 54h 7Ch
NV-SV120EC 62h 74h 78h
NV-SV120EP 66h 74h 78h
Fig. S2 Model Code & Option Code
NOTE:
Since all electrical adjustments data is still not available, perform the Electrical Adjustment
continuously.
2.1.2. CYLINDER UNITREPLACEMENT
1. CYLINDERUNITREPLACEMENT
A. Remove the mechanism unitfrom MAINC.B.A./Chassisby
referring “SECTION2. DisassemblyProcedure”.
B. Remove the 3screws(A)of the CYLINDERUNITwith ascrew
driver.
C. Unlock the 4locking tabs (B)and disconnect the Cylinder
flexiblecard from the FPCHolder.
D. Remove the CYLINDERUNIT.
CAUTION:
Handlethe Cylinder flexiblecard with care. When itdamaged, you
shouldreplace wholeCylinder unit.
Fig. S3
4
2. UPPERCYLINDERDISASSEMBLY
A. Remove 2screws(A).
B. Remove the Cylinder Stator Unit.
C. Remove 2screws(B).
D. Remove the Cylinder Rotor Unit.
E. Loose Hex screw (C)(1.5mm) and remove the CYLINDER
RETAINER.
F. Remove the Upper Cylinder. Fig. S4
5
3. UPPERCYLINDERASSEMBLY
When reassembling, perform the steps inthe reverse order.
Notes:
1. Install the Cylinder Retainer so that the 2holes on top of the
Cylinder Retainer are at right angles with the P5001 Connection.
2. Tighten the Hex screw (C)(1.5mm) whilepressing downon top of
the Cylinder Retainer. Fig. S5
6
3. Install the Cylinder Rotor Unitso that the inner holeof the
Cylinder Rotor Unitfits to the small projection (D)on top of the
Upper Cylinder.
4. Tighten 2screws(B). Fig. S6
5. install the Cylinder Stator Unit.
6. Tighten 2screws(A). Fig. S7
7. Confirm the PG SHIFTERADJUSTMENTwith the alignment tape
7
(PAL: VFJ8125H3F) and adjust itifnecessary.
2.1.3. CHECKING OFMAIN C.B.A.
Whenservicing the MAIN C.B.A., take out the MAIN C.B.A. and mechanismfromthe frame and
turnover.
Fig. S8
2.1.4. FLATCARD CABLE INSTALLATION
Wheninstalling the Flat CardCable on the connector, install the Flat CardCable withthe cable
contacts facing the connectorcontacts.
Fig. S9
2.2. REMOVALOFCASSETTE TAPE
There are 2 ways toremove a cassette tape.
1. Service Information DisplayOperation
A. Press the FF and EJECTkeyssimultaneoslyfor 3seconds and
set the Service Mode 7.
B. Press STOPkeyinorder to rotate the Loading Motor for
unloading operation. (Payan attention of tape slack)
2. Manual Operation
A. Disconnect the AC Mains Lead and remove the Top Panel.
8
B. Rotate the MainCam Gear clockwise until the Loading Posts
move to fullyunloaded position as shownin Fig. S10 . (Tape is
remaining) Fig. S10
C. Rotate the Capstan Motor clockwise from the bottom side to
take up the tape. Fig. S11
D. Rotate the MainCam Gear clockwise until the cassette tape is
ejected.
2.3. INTRODUCTIONOFVIDEO HEAD CLEANING CASSETTE /
(POLISHING TYPE)
1. We are pleased to introduce PanasonicVideo Head Cleaning
Cassette, VFK0923FT [for service purposes] and VFK0923FSE [
for end users] for all VHS/SVHSVCPand VCR.
2. These cleaning cassettes are exclusive removing the hard and
stickyclogging on video heads.
3. These improve the efficiencyof video head cleaning service and
shortening cleaning time for end users.
9
VFK0923FT
(ForService usage)
Type of Cassette Full VHS Cassette
Cleaning Time 10 Seconds/Time
Tape Length 20 m
Usabilityina Path 180 Times
VFK0823FSE
(Forend users)
Type of Cassette Full VHS Cassette
Cleaning Time 10 Seconds/Time
Tape Length 3.34 m
Usabilityina Path 30 Times
10
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