Panasonic NV-HS860EG-K User manual

ORDERNO. VRD0008024C2
Video Cassette 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
1

2000 Matsushita ElectricIndustrial Co., Ltd. All rights reserved.
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:
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

2. The Model No. isindicated on the SchematicDiagram and Circuit
Board Diagrams as 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. GERAL DESCRIPTIONS
2.1. SERVICECAUTION-1
-REPLACING IC7701, IC7703 and/orB7701-
Whenthe OSD-MicroprocessorIC7701, S-RAM IC7703 and/orBack-up batteryB7701 are
replaced, the Tape Librarydata will not be available.Therefore, back up the Tape Librarydata
first, thenperform necessaryservicing.
NOTE:
*The Tape Librarysystem isachieved using not onlythe data of
which isrecorded on the tape but also the data isstored inS-RAM
IC7703.*The stored data inS-RAMIC7703 isbacked up byusing the
power source of:
*AC Connected: AC Power souse
*AC Disconnected: Back-up Battery(B7701).
(NOTE: Even ifthe OSDPACK C.B.A.(VEP07A30A/B)is
disconnected from the VCR, the power isstill supplied from Back-
up battery.)
2.1.1. REPLACING PROCEDURE
2.1.1.1. PREPARATION
NOTE:
Itisnecessarythat the Tape LibrarySystem has to operate properly.
STEP1.BACK UP THE TAPE LIBRARY DATA
1. Connect aTV and aRFAerial lead to the VCR and receive one of
TV station.
2. Record the TV programme for at least 15 minuets inthe SP or LP
mode (25 minuets inthe EP mode) on aCassette Tape.
2.1.1.2. REPLACEMENT
3

STEP2.REPLACE THE IC7701, IC7703 AND/OR B7701
1. Disconnect the AC plug.
2. Remove the C.B.A. with Mechanism unitbyreferring the
Disassemblyprocedure.
3. Replace the IC7701, IC7703 and/or B7701.
STEP3.RESTORE THE TAPE LIBRARY DATA
1. Using the Remote controller:
A. Press the MENU button and then the Cursor buttons to select
"Tape Library".
B. Select "Restore data" and Press the OKbutton.
2. Insert the Backed-up cassette tape into the VCR. / The restoration
of Librarydata starts automatically. / (Ittakes some time to be
completed.)
3. Store the Tape Librarydata accordingly.
2.2. SERVICECAUTION-2
-REPLACING IC6701-
Whenthe EEPROM IC6701 is replaced, propermodel code, option code and electrical
adjustment data will not be available. Therefore, enterthe necessarydata afterreplacing IC6701.
2.2.1. REPLACING PROCEDURE
STEP1.REPLACEMENT
1. Disconnect the AC plug and replace the IC6701.
STEP2.INPUTTHE MODEL& OPTION CODE
1. Set up the model code and option code byordering the following
table.
4

PROCEDURE F.I.P. DISPLAY
Turnon the Service Mode
-"Turn theShuttleRing to FF"*1and press
theEJECTkeysimultaneouslyfor morethan
3seconds.
Activate the Service Mode 2
-"Turn theShuttleRing to FF"*1and press
theEJECTkeyin twice.
Activate the Entering Mode.
-Press theEJECTkeyin morethan 3
seconds.
Set the Mode 2.
-Press theCH UPkeyin twice.
Displaythe Setting Code.
-Press thePOWER Button. / (POWER ON)
(Colon Starts
Flashing)
Enterthe Model and Option Code.
-Set theModel and Option codebyusing REW, PLAY, STOPand FF
keyson theRemote Controller. (See Fig.S1 Service Screen (Sample) &
S2)
Exit fromService Mode.
-Press thePOWER Button. / (POWER OFF)
-Press FF and EJECTkeyssimultaneously
in 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)
5

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 not available, perform
the Electrical Adjustment continuously.
-Turn on the Service Mode by:/ (NV-HS960 series) / Rotating the
ShuttleRing to FF side and press the EJECTkeysimultaneously
for 3seconds. / (NV-HS860 series) / Pressing the FF and the
EJECTkeysimultaneouslyfor 3seconds. / Then select the Service
Mode 7byrepeating above operation in7times.
2.2.2. CHECKING OFMAIN C.B.A.
Whenservicing the MAIN C.B.A., take out the MAIN C.B.A. and mechanismfromthe frame and
turnover.
And thenconnect the 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. SERVICING THE PACK 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.
6

Part No. Part Name Pcs. Connection
VFK1567 15P EXTENSION
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 13P EXTENSION
CABLE 1PP3905 (MAIN C.B.A.) - PS3905 (Input/Output Pack
C.B.A.)
VFK1555 8P EXTENSION CABLE 1 PP3903 (MAIN C.B.A.) - PS3903 (Input/Output Pack
C.B.A.)
VFK1564 10P EXTENSION
CABLE 1PP3902 (MAIN C.B.A.) - PS3902 (Input/Output Pack
C.B.A.)
VFK1569 5P EXTENSION CABLE 1 PP3901 (MAIN C.B.A.) - PS3901 (Input/Output Pack
C.B.A.)
VFK1635 3P EXTENSION 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 7P EXTENSION 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. CYLINDER UNITREPLACEMENT
1. CYLINDERUINTREPLACEMENT
A. Remove the 3Screws(A)of the CLINDERUNITwith a
magnetized screw driver. Fig. S5
7

2. UPPERCYLINDERDISASSEMBLY
A. Remove the Top Panel.
B. Remove the screw (A)and Earth Plate.
C. Move the lock pinch to the left side inorder to release the
cylinder lock.
D. Keep turning the Upper cylinder clockwise and /
counterclockwise alternatelyand remove the Upper cylinder.
Fig. S6
3. UPPERCYLINDERASSEMBLY
A. When mount the Upper cylinder, the lock of ithas to be
released.
Keep turning Upper cylinder clockwise and / counterclockwise
alternatelyand keep pressing ituntil itismounted completely.
B. Move the lock pinch to right side inorder to fixthe Upper
cylinder after the Upper cylinder has been mounted.
Fig. S7
8

2.2.5. FLATCARD CABLE INSTALLATION
Wheninstalling the Flat CardCable on the connector, install the Flat CardCable withthe cable
contacts facing the connectorcontacts.
Fig. S8
2.3. REMOVALOFCASSETTE TAPE
There are 2 ways toremove a cassette tape.
1. Service Information DisplayOperation
A. Turn the ShuttleRing to FF and Press EJECTkey
simultaneouslyfor 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.
B. Rotate the MainCam Gear clockwise until the Loading Posts
move to fullyunloaded position as shownin Fig. S9. (Tape is
remaining)
9

Fig. S9
C. Rotate the Capstan Motor clockwise from the bottom side to
take up the tape. Fig. S10
D. Rotate the MainCam Gear clockwise until the cassette tape is
ejected.
2.4. 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.
10

VFK0923FT
(ForService usage)
Type of Cassette Full VHS Cassette
Cleaning Time 10 Seconds/Time
Tape Length 20 m
Usabilityina Path 180 Times
VFK0923FSE
(Forend users)
Type of Cassette Full VHS Cassette
Cleaning Time 10 Seconds/Time
Tape Length 3.34 m
Usabilityina Path 30 Times
11

VFK0923FSE
(Forend users)
Note:
The tape material itselfisthe same inboth types.
2.5. CAUTIONFORAC MAINSLEAD (NV-HS860B-S, HS960B-S)
2.6. HOWTO REPLACETHELITHIUMBATTERY
2.6.1. Backup BatteryB7701
This VTR equippedwiththe Backup Battery(B7701) tobackup the following memorizeddata in
the S-RAM IC7703.
1. Tape LibraryData
2. Tuning data of SATchannels(Three figures/Channel)
2.6.2. Replacement Procedure
Note:
Before proceeding the replacement, back up the Tape Librarydata.
(Refer to "2-1.SERVICECAUTION-1".)
[Procedure]
1. Remove the Top Panel.(Refer to DisassemblyProcedures.)
2. Unsolder the Lithium Battery:B7701"CR2354-1GUF" which is
located on OSDPACK C.B.A. and then replace itinto new
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one.(See Fig. B1)
Fig. B1
CAUTION:
The lithium batteryisacritical component (Type No.:CR2354-1GUF
Manufactured byPanasonic.) / Itmust never be subjected to
excessive heat or discharge. / Itmust therefore onlybe fitted in
equipment designed specificallyfor its use. / Replacement batteries
must be of the same type and manufacture. / Theymust be fitted in
the same manner and location as the original battery, with the
correct polaritycontacts observed. / Donot attempt to re-charge
the oldbatteryor re-use itfor anyother purpose. / Itshouldbe
disposed of inwaste products destined for burial rather than
incineration.
13

3. ADJUSTMENT PROCEDURES
3.1. DISASSEMBLY METHOD
3.1.1. DISASSEMBLY FLOW CHART
This flowchart indicates disassemblysteps of the cabinet parts and the circuit boards inorder
tofind the necessaryitems forservicing.
Whenreassembling, perform the steps inthe reverse order.
Fig. D1
3.1.2. DETAILOFDISASSEMBLY METHOD
1. REMOVALOFTHETOPPANEL
Remove 4 Screws (A)
Fig. D2
14

2. REMOVALOFTHEFRONTPANEL UNIT
Pull out JOG & SHUTTLE UNIT&
JOG DIAL(HS960 Series
only)
Unlock 7 Tabs (B)
Fig. D3
3. REMOVALOFTHEPOWERC.B.A.
Disconnect Bridge Connector(C)
Unlock 6 Tabs (D)
Fig. D4
15

COUTIONS:
Please payan attention to disconnect the connector (P1001-
P1102) which connected between MainC.B.A. and Power supply
unitas shownbelow. Fig. D5
Asabove drawing, disconnect the connector bySCREW DRIVER
from the direction (A). / Donot disconnect from direction (B)
because itispossibilityto damage the parts located bythe
connector.
4. REMOVALOFTHEAVFRONTC.B.A. &FRONTSWITCH C.B.A.
REMOVALOFTHE AV FRONTC.B.A.
Unlock 2 Tabs (E)
REMOVALOFTHE FRONTSWITCH C.B.A.
Unlock 2 Tabs (F)
Fig. D6
16

5. REMOVALOFTHEMECHANISM UNIT
Remove 3 Screws (G)
Remove 2 Screws (H)
Note:
Keeppressing 2 stoppers on Cassette HolderPlate and Press Cassette HolderPlate tothe rear.
Fig. D7
6. REMOVALOFTHEMAINC.B.A.
Disconnect Bridge Connector(C)
Remove Screw(I)
Unlock 7 Tabs (J)
Fig. D8
17

7. SERVICING POSITION Fig. D9
3.2. MECHANICALADJUSTMENTPROCEDURES
Refertothe Service Manual forZ-MechanismChassis. / (OrderNo. VRD9802005C2)
3.3. ELECTRICALADJUSTMENTPROCEDURES
3.3.1. TESTEQUIPMENT
The following equipment is requiredforElectrical Adjustments.
1. Dual-Trace Oscilloscope
-Voltage Range:0.005-5V/div
-FrequencyRange:DC-35MHz
-Probes: 10:1/1:1
2. FrequencyCounter
-FrequencyRange:0-10MHz
18

-Probes:1:1
3. Universal Counter
4. Digital VoltMeter (D.V.M.)
5. Video Sweep Generator
6. Sine-wave Generator
7. Video Pattern Generator
8. Monitor TV
9. DC Power Supply
10. VHS/S-VHSBlank Tape
11. VHSAlignment Tape
-Parts No.:VFJ8125H3F(PAL)
3.3.2. VCR SETTING
Whenno indication inthe procedure, set eachselectoras follows.
1. TAPE SPEED:SP
2. CHANNEL:AV1/AV2/AV3
(Set to signal input terminal number.)
3. S-VHSSW:ON
4. 3DDNR SW:ON
3.3.3. ADJUSTMENTS
19

ITEM TP ADJ. MODE INPUT TAPE M. EQ. SPEC. REMARKS
PG
SHIFTER
ADJUSTMENT
--- --- PLAYBACK --- ALIGNMENT
TAPE
/
(PAL)
--- --- Refertoprocedure
as
Fig.E5.
VIDEO EE
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 ajumper wire
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)
Refertoprocedure
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 2.6V
DC.
4. Adjust thefrequencyby
VC7701.
20