Panasonic NV-HS860EG-K User manual

ORDERNO. VRD0008024C2
VideoCassette Recorder
NV-HS860EG-K/ NV-HS860EG-S / NV-HS860B-S / NV-
HS860EC-S / NV-HS960EG-S / NV-HS960B-S / NV-HS960EC-S
Z-MECHANISM
SPECIFICATIONS

2000 Matsushita ElectricIndustrial Co., Ltd. All rights reserved.
Unauthorizedcopying and distribution isaviolation oflaw.
1. INTRODUCTION
This service manual contains technical information whichwill allowservice personnel to
understand and service this model.
Ifthe circuitis changedormodified, this information will be followedbysupplementaryservice
manual to be filedwith original service manual.
Note:
1. Adjustmentprocedures, DisassemblyProcedures and Assembly
Procedures for MechanismChassisareseparate volumefrom this
service manual. / Please refertotheservice manual for Z-
MechanismChassis. (OrderNo. VRD9802005C2)

2. TheModel No. isindicatedon theSchematicDiagramand Circuit
Board Diagramsas follows.
Model No. Indication Mark
NV-HS860EG-K/EG-S (A)
NV-HS860B-S (B)
NV-HS860EC-S (C)
NV-HS960EG-S (D)
NV-HS960B-S (E)
NV-HS960EC-S (F)
2. GERALDESCRIPTIONS
2.1. SERVICE CAUTION-1
-REPLACINGIC7701, IC7703 and/orB7701-
Whenthe OSD-MicroprocessorIC7701, S-RAMIC7703 and/orBack-up batteryB7701 are
replaced, the Tape Librarydata will not be available.Therefore, back up the Tape Librarydata
first, thenperformnecessaryservicing.
NOTE:
*TheTapeLibrarysystemisachievedusing notonlythedata of
whichisrecordedon thetapebutalsothedata isstoredinS-RAM
IC7703.*Thestoreddata inS-RAMIC7703 isbackedup byusing the
powersource of:
*ACConnected:ACPowersouse
*ACDisconnected:Back-up Battery(B7701).
(NOTE:EveniftheOSDPACK C.B.A.(VEP07A30A/B) is
disconnectedfrom theVCR, thepowerisstill suppliedfrom Back-
up battery.)
2.1.1. REPLACINGPROCEDURE
2.1.1.1. PREPARATION
NOTE:
Itisnecessarythat theTapeLibrarySystemhas tooperate properly.
STEP1.BACK UPTHETAPE LIBRARYDATA
1. Connect aTV and aRFAerial leadtotheVCR and receiveoneof
TV station.
2. Record theTV programmefor at least 15 minuets intheSP or LP
mode(25 minuets intheEP mode) on aCassette Tape.
2.1.1.2. REPLACEMENT

STEP2.REPLACETHEIC7701, IC7703 AND/OR B7701
1. Disconnect theACplug.
2. RemovetheC.B.A. withMechanismunitbyreferring the
Disassemblyprocedure.
3. Replace theIC7701, IC7703 and/or B7701.
STEP3.RESTORETHETAPE LIBRARYDATA
1. Using theRemote controller:
A. Press theMENU button and thentheCursor buttonstoselect
"TapeLibrary".
B. Select "Restoredata"and Press theOKbutton.
2. InserttheBacked-up cassette tapeintotheVCR. / Therestoration
ofLibrarydata starts automatically. / (Ittakes sometimetobe
completed.)
3. StoretheTapeLibrarydata accordingly.
2.2. SERVICE CAUTION-2
-REPLACINGIC6701-
Whenthe EEPROMIC6701 is replaced, propermodel code, option code and electrical
adjustment data will not be available. Therefore, enterthe necessarydata afterreplacing IC6701.
2.2.1. REPLACINGPROCEDURE
STEP1.REPLACEMENT
1. Disconnect theACplug and replace theIC6701.
STEP2.INPUTTHEMODEL& OPTION CODE
1. Set up themodel codeand option codebyordering thefollowing
table.

PROCEDURE F.I.P. DISPLAY
Turnon the Service Mode
-"Turnthe ShuttleRing to FF"*1and press
theEJECTkeysimultaneouslyformorethan
3seconds.
Activate the Service Mode 2
-"Turnthe ShuttleRing to FF"*1and press
theEJECTkeyintwice.
Activate the Entering Mode.
-Press the EJECTkeyinmorethan 3
seconds.
Setthe Mode 2.
-Press the CH UPkeyintwice.
Displaythe Setting Code.
-Press the POWER Button. / (POWER ON)
(Colon Starts
Flashing)
Enterthe Model and Option Code.
-Set the Model and Option codebyusing REW, PLAY, STOPand FF
keyson the RemoteController. (See Fig.S1 Service Screen (Sample) &
S2)
Exitfrom Service Mode.
-Press the POWER Button. / (POWER OFF)
-Press FF and EJECTkeyssimultaneouslyin
6times.
(Normal
Indication)
*1:NV-HS960 series only. As forNV-HS860 series, press the FF keyinsteadof "turning the Jog
dial."
Fig.S1 Service Screen(Sample)

Model No. Model
Code Option Code 1 Option Code 2 Option Code 3
NV-HS860EG 192 08 117 47
NV-HS860EC 196 08 117 47
NV-HS860B 200 32 116 47
NV-HS960EG 193 08 117 63
NV-HS960EC 197 08 117 63
NV-HS960B 201 32 116 63
Fig.S2 Model Code & Option Code
NOTE:
Since all electrical adjustments data isstill notavailable, perform
theElectrical Adjustmentcontinuously.
-Turn on theService Modeby:/ (NV-HS960 series) / Rotating the
ShuttleRing toFF sideand press theEJECTkeysimultaneously
for 3seconds. / (NV-HS860 series) / Pressing theFF and the
EJECTkeysimultaneouslyfor 3seconds. / Thenselect theService
Mode7byrepeating aboveoperation in7times.
2.2.2. CHECKINGOFMAINC.B.A.
Whenservicing the MAIN C.B.A., take out the MAIN C.B.A. and mechanismfrom the frame and
turnover.
And thenconnectthe Extension Cable (VFK2744)betweenthe POWER C.B.A. connector
(P1102)and the MAIN C.B.A. connector(P1001)as shownin Fig. S3.
Fig. S3
2.2.3. SERVICINGTHEPACK C.B.A.
Whenservicing the OSD Pack C.B.A. and Input/Output Pack C.B.A. and TBC Pack C.B.A. and
FSC Pack C.B.A., connections of extension cable are necessaryas shownbelow.

PartNo. PartName Pcs. Connection
VFK1567 15PEXTENSION
CABLE 4PP7703 (MAIN C.B.A.)-PS7703 (OSD Pack C.B.A.)
PP7702 (MAIN C.B.A.)-PS7702 (OSD Pack C.B.A.)
PP7701 (MAIN C.B.A.)-PS7701 (OSD Pack C.B.A.)
PP3904 (MAIN C.B.A.)-PS3904 (Input/Output Pack
C.B.A.)
VFK1568 13PEXTENSION
CABLE 1PP3905 (MAIN C.B.A.)-PS3905 (Input/Output Pack
C.B.A.)
VFK1555 8PEXTENSION CABLE 1 PP3903 (MAIN C.B.A.)-PS3903 (Input/Output Pack
C.B.A.)
VFK1564 10PEXTENSION
CABLE 1PP3902 (MAIN C.B.A.)-PS3902 (Input/Output Pack
C.B.A.)
VFK1569 5PEXTENSION CABLE 1 PP3901 (MAIN C.B.A.)-PS3901 (Input/Output Pack
C.B.A.)
VFK1635 3PEXTENSION CABLE 2 PP3751 (TBC Pack C.B.A.)-PS3751 (FSC Pack C.B.A.)
PP3502 (MAIN C.B.A.)-PS3502 (TBC Pack C.B.A.)
VFK1634 7PEXTENSION CABLE 2 PP3501 (MAIN C.B.A.)-PS3501 (TBC Pack C.B.A.)
PP3503 (MAIN C.B.A.)-PS3503 (TBC Pack C.B.A.)
Fig. S4
2.2.4. CYLINDERUNIT REPLACEMENT
1. CYLINDERUINTREPLACEMENT
A. Removethe3Screws(A)oftheCLINDERUNITwitha
magnetizedscrewdriver. Fig. S5

2. UPPERCYLINDERDISASSEMBLY
A. RemovetheTop Panel.
B. Removethescrew(A)and EarthPlate.
C. Movethelock pinchtotheleft sideinordertorelease the
cylinderlock.
D. Keepturning theUppercylinderclockwise and /
counterclockwise alternatelyand removetheUppercylinder.
Fig. S6
3. UPPERCYLINDERASSEMBLY
A. WhenmounttheUppercylinder, thelock ofithas tobe
released.
Keepturning Uppercylinderclockwise and / counterclockwise
alternatelyand keeppressing ituntil itismountedcompletely.
B. Movethelock pinchtorightsideinordertofixtheUpper
cylinderaftertheUppercylinderhas beenmounted.
Fig. S7

2.2.5. FLAT CARD CABLEINSTALLATION
Wheninstalling the FlatCardCable on the connector, install the FlatCardCable with the cable
contacts facing the connectorcontacts.
Fig. S8
2.3. REMOVALOFCASSETTE TAPE
There are 2 ways to remove a cassette tape.
1. Service Information DisplayOperation
A. Turn theShuttleRing toFF and Press EJECTkey
simultaneouslyfor 3secondsand set theService Mode7.
B. Press STOP keyinordertorotate theLoading Motor for
unloading operation. (Payanattention oftapeslack)
2. Manual Operation
A. Disconnect theACMainsLeadand removetheTop Panel.
B. Rotate theMainCamGearclockwise until theLoading Posts
movetofullyunloadedposition as shownin Fig. S9. (Tapeis
remaining)

Fig. S9
C. Rotate theCapstanMotor clockwise from thebottom sideto
take up thetape. Fig. S10
D. Rotate theMainCamGearclockwise until thecassette tapeis
ejected.
2.4. INTRODUCTIONOFVIDEO HEADCLEANING CASSETTE /
(POLISHING TYPE)
1. Wearepleasedtointroduce PanasonicVideoHeadCleaning
Cassette, VFK0923FT[for service purposes] and VFK0923FSE [for
end users] for all VHS/SVHS VCP and VCR.
2. These cleaning cassettes areexclusiveremoving thehard and
stickyclogging on videoheads.
3. These improvetheefficiencyofvideoheadcleaning service and
shortening cleaning timefor end users.

VFK0923FT
(ForService usage)
Type of Cassette Full VHSCassette
Cleaning Time 10 Seconds/Time
Tape Length 20 m
Usabilityina Path 180 Times
VFK0923FSE
(Forend users)
Type of Cassette Full VHSCassette
Cleaning Time 10 Seconds/Time
Tape Length 3.34 m
Usabilityina Path 30 Times

VFK0923FSE
(Forend users)
Note:
Thetapematerial itselfisthesameinbothtypes.
2.5. CAUTIONFORACMAINS LEAD(NV-HS860B-S, HS960B-S)
2.6. HOWTO REPLACE THE LITHIUM BATTERY
2.6.1. Backup BatteryB7701
This VTR equippedwith the Backup Battery(B7701)to backup the following memorizeddata in
the S-RAMIC7703.
1. TapeLibraryData
2. Tuning data ofSATchannels(Three figures/Channel)
2.6.2. ReplacementProcedure
Note:
Beforeproceeding thereplacement, back up theTapeLibrarydata.
(Referto"2-1.SERVICE CAUTION-1".)
[Procedure]
1. RemovetheTop Panel.(RefertoDisassemblyProcedures.)
2. UnsoldertheLithium Battery:B7701"CR2354-1GUF" whichis
locatedon OSDPACK C.B.A. and thenreplace itintonew

one.(See Fig. B1)
Fig. B1
CAUTION:
Thelithium batteryisacritical component(TypeNo.:CR2354-1GUF
ManufacturedbyPanasonic.)/ Itmust neverbesubjectedto
excessiveheat or discharge. / Itmust thereforeonlybefittedin
equipmentdesignedspecificallyfor its use. / Replacement
batteries must beofthesametypeand manufacture. / Theymust
befittedinthesamemannerand location as theoriginal battery,
withthecorrect polaritycontacts observed. / Donotattempttore-
chargetheoldbatteryor re-use itfor anyotherpurpose. / Itshould
bedisposedofinwaste products destinedfor burial ratherthan
incineration.

3. ADJUSTMENTPROCEDURES
3.1. DISASSEMBLY METHOD
3.1.1. DISASSEMBLYFLOWCHART
This flowchartindicates disassemblysteps of the cabinetparts and the circuitboards inorder
to find the necessaryitems forservicing.
Whenreassembling, performthe steps inthe reverse order.
Fig. D1
3.1.2. DETAILOFDISASSEMBLYMETHOD
1. REMOVALOFTHE TOP PANEL
Remove 4 Screws (A)
Fig. D2

2. REMOVALOFTHE FRONTPANELUNIT
Pull out JOG & SHUTTLEUNIT&
JOG DIAL(HS960 Series
only)
Unlock 7 Tabs (B)
Fig. D3
3. REMOVALOFTHE POWERC.B.A.
Disconnect Bridge Connector(C)
Unlock 6 Tabs (D)
Fig. D4

COUTIONS:
Please payanattention todisconnect theconnector (P1001-
P1102) whichconnectedbetweenMainC.B.A. and Powersupply
unitas shownbelow. Fig. D5
Asabovedrawing, disconnect theconnector bySCREW DRIVER
from thedirection (A). / Donotdisconnect from direction (B)
because itispossibilitytodamagetheparts locatedbythe
connector.
4. REMOVALOFTHE AV FRONTC.B.A. &FRONTSWITCH C.B.A.
REMOVALOF THEAVFRONTC.B.A.
Unlock 2 Tabs (E)
REMOVALOF THEFRONTSWITCH C.B.A.
Unlock 2 Tabs (F)
Fig. D6

5. REMOVALOFTHE MECHANISMUNIT
Remove 3 Screws (G)
Remove 2 Screws (H)
Note:
Keeppressing 2 stoppers on Cassette HolderPlate and Press Cassette HolderPlate to the rear.
Fig. D7
6. REMOVALOFTHE MAINC.B.A.
Disconnect Bridge Connector(C)
Remove Screw(I)
Unlock 7 Tabs (J)
Fig. D8

7. SERVICING POSITION Fig. D9
3.2. MECHANICALADJUSTMENTPROCEDURES
Referto the Service Manual forZ-MechanismChassis. / (OrderNo. VRD9802005C2)
3.3. ELECTRICALADJUSTMENTPROCEDURES
3.3.1. TEST EQUIPMENT
The following equipment is requiredforElectrical Adjustments.
1. Dual-Trace Oscilloscope
-VoltageRange:0.005-5V/div
-FrequencyRange:DC-35MHz
-Probes:10:1/1:1
2. FrequencyCounter
-FrequencyRange:0-10MHz

-Probes:1:1
3. Universal Counter
4. Digital VoltMeter(D.V.M.)
5. VideoSweepGenerator
6. Sine-waveGenerator
7. VideoPattern Generator
8. Monitor TV
9. DC PowerSupply
10. VHS/S-VHS BlankTape
11. VHS AlignmentTape
-Parts No.:VFJ8125H3F(PAL)
3.3.2. VCR SETTING
Whenno indication inthe procedure, seteachselectoras follows.
1. TAPE SPEED:SP
2. CHANNEL:AV1/AV2/AV3
(Set tosignal inputterminal number.)
3. S-VHS SW:ON
4. 3DDNR SW:ON
3.3.3. ADJUSTMENTS

ITEM TP ADJ. MODE INPUT TAPE M. EQ. SPEC. REMARKS
PG
SHIFTER
ADJUSTMENT
--- --- PLAYBACK --- ALIGNMENT
TAPE
/
(PAL)
--- --- Referto procedure
as
Fig.E5.
VIDEOEE
LEVEL
ADJUSTMENT
TP3002VR3004STOP PAL/
COLOUR
BAR
--- OSCILLOSCOPE 2.0+-0.1 (Vp-
p)
(See Fig. E1)
1. VIDEO OUTmust be75
ohm
RECORDING
/
CURRENT
/
ADJUSTMENT
TW3001
(HOT)
/
TW3002
(COLD)
VR3002SP /
RECORDING
PAL/
COLOUR
BAR
S-
VHS
/
BLANK
TAPE
OSCILLOSCOPE
NV-HS860
series / C:50
+-4mVp-p /
/ NV-HS960
series / C:56
+-4mVp-p /
(See Fig.E2)
1. Connect ajumperwire
between
TW3001(HOT) and TW3002(
COLD).
VHS/
FREQUENCY
/
RESPONSE
/
ADJUSTMENT
LINE-
OUT/
(TP3002)
--- SP/LP/
PLAYBACK
/ (SELF
REC.)
VIDEO
SWEEP
/
SIGNAL
(See
Fig.
E3)
BLANK
TAPE OSCILLOSCOPE / / VIDEO
SWEEP
GENERA-
TOR
SP:0+-1
(dB)
(90-110%)
(See Fig. E4)
Referto procedure
as
Fig.E6.
VXO/
FREE RUN
/
FREQUENCY
ADJUSTMENT
TL7711VC7701--- --- --- FREQUENCY
COUNTER4433619+-
150Hz
1. Connect TL7714 to 5VDC.
2. Connect TL7712 to GND.
3. Connect TL7713 to 2.6VDC.
4. Adjust the frequencyby
VC7701.