JVC HR-V610EX User manual

SERVICE MANUAL
COPYRIGHT © 2004 Victor Company of Japan, Limited No.YD010
2004/5
VIDEO CASSETTE RECORDER
YD01020045HR-V610EX, HR-V610EY, HR-V610EZ,
HR-V611EX, HR-V611EY, HR-V611EZ,
HR-V612EX, HR-V612EY, HR-V612EZ,
HR-V615EK, HR-V616EK, HR-V617EK,
HR-V715EK
For disassembling and assembling of MECHANISM ASSEMBLY, refer to the SERVICE MANUAL No.86700(MECHANISM ASSEMBLY).
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
PAL
VCR
SAT
REVIEW
VCR
SAT
REVIEW
HR-V610EX, HR-V610EY, HR-V610EZ, HR-V611EX, HR-V611EY,
HR-V611EZ, HR-V612EX, HR-V612EY, HR-V612EZ, HR-V615EK,
HR-V616EK, HR-V617EK, HR-V715EK [V17D1,V17D1+]
(EK models)
(EX, EY, EZ models)

1-2 (No.YD010)
SPECIFICATION
Specifications shown are for SP mode unless otherwise specified.
E.& O.E. Design and specifications subject to change without notice.
HR-V610EX, HR-V610EY, HR-V610EZ,
HR-V611EX, HR-V611EY, HR-V611EZ,
HR-V612EX, HR-V612EY, HR-V612EZ
HR-V615EK, HR-V616EK,
HR-V617EK HR-V715EK
GENERAL
Power requirement AC 220 V -240 V, 50 Hz/60 Hz
Power consumption
Power on 14 W
Power off 3.2 W
Temperature
Operating 5°C to 40°C
Storage -20°C to 60°C
Operating position Horizontal only
Dimensions (W ×H ×D) 400 mm ×94 mm ×265 mm 400 mm ×94 mm ×275 mm 400 mm ×94 mm ×270 mm
Weight 3.1 kg
Format VHS PAL standard
Maximum recording time
(SP) 240 min. with E-240 video cassette
(LP) 480 min. with E-240 video cassette
VIDEO/AUDIO
Signal system PAL-type colour signal and CCIR monochrome signal, 625 lines 50 fields
Recording system DA4 (Double Azimuth) head helical scan system
Signal-to-noise ratio 45 dB
Horizontal resolution 250 lines
Frequency range
Normal audio 70 Hz to 10,000 Hz
Hi-Fi audio 20 Hz to 20,000 Hz
Input/Output 21-pin SCART connectors: IN/OUT ×1, IN/DECODER ×1
RCA connectors: AUDIO OUT ×1
TUNER/TIMER
TV channel storage capacity 99 positions (+AUX position)
Tuning system Frequency synthesized tuner
Channel coverage VHF: 47 MHz - 89 MHz/104 MHz - 300MHz/
302 MHz - 470 MHz
UHF: 470 MHz - 862 MHz
VHF: 44.5 MHz - 143 MHz/143 MHz - 470 MHz
UHF: 470 MHz - 862 MHz
Aerial output UHF channels 22 -69 (Adjustable)
Memory backup time Approx. 10 min.
ACCESSORIES
Provided accessories RF cable, Infrared remote control unit, “R6(AA)” battery ×2
Optional accessories Satellite Controller RM-SD1 -

(No.YD010)1-3
SECTION 1
PRECAUTION
1.1 SAFTY PRECAUTIONS
Prior to shipment from the factory, JVC products are strictly in-
spected to conform with the recognized product safety and elec-
trical codes of the countries in which they are to be
sold.However,in order to maintain such compliance, it is equally
important to implement the following precautions when a set is
being serviced.
1.1.1 Precautions during Servicing
(1) Locations requiring special caution are denoted by labels
and inscriptions on the cabinet, chassis and certain parts of
the product.When performing service, be sure to read and
comply with these and other cautionary notices appearing
in the operation and service manuals.
(2) Parts identified by the symbol and shaded ( ) parts
are critical for safety.
Replace only with specified part numbers.
NOTE :
Parts in this category also include those specified to
comply with X-ray emission standards for products
using cathode ray tubes and those specified for
compliance with various regulations regarding spu-
rious radiation emission.
(3) Fuse replacement caution notice.
Caution for continued protection against fire hazard.
Replace only with same type and rated fuse(s) as speci-
fied.
(4) Use specified internal wiring. Note especially:
• Wires covered with PVC tubing
• Double insulated wires
• High voltage leads
(5) Use specified insulating materials for hazardous live parts.
Note especially:
• Insulation Tape
• PVC tubing
•Spacers
• Insulation sheets for transistors
•Barrier
(6) When replacing AC primary side components (transformers,
power cords, noise blocking capacitors, etc.) wrap ends of
wires securely about the terminals before soldering.
Fig.1-1-1
(7) Observe that wires do not contact heat producing parts
(heatsinks, oxide metal film resistors, fusible resistors, etc.)
(8) Check that replaced wires do not contact sharp edged or
pointed parts.
(9) When a power cord has been replaced, check that 10-15
kg of force in any direction will not loosen it.
Fig.1-1-2
(10) Also check areas surrounding repaired locations.
(11) Products using cathode ray tubes (CRTs)In regard to such
products, the cathode ray tubes themselves, the high volt-
age circuits, and related circuits are specified for compli-
ance with recognized codes pertaining to X-ray emission.
Consequently, when servicing these products, replace the
cathode ray tubes and other parts with only the specified
parts. Under no circumstances attempt to modify these cir-
cuits.Unauthorized modification can increase the high volt-
age value and cause X-ray emission from the cathode ray
tube.
(12) Crimp type wire connectorIn such cases as when replacing
the power transformer in sets where the connections be-
tween the power cord and power trans former primary lead
wires are performed using crimp type connectors, if replac-
ing the connectors is unavoidable, in order to prevent safe-
ty hazards, perform carefully and precisely according to the
following steps.
•Connector part number :E03830-001
•Required tool : Connector crimping tool of the proper
type which will not damage insulated parts.
•Replacement procedure
a) Remove the old connector by cutting the wires at a
point close to the connector.Important : Do not re-
use a connector (discard it).
Fig.1-1-3
b) Strip about 15 mm of the insulation from the ends
of the wires. If the wires are stranded, twist the
strands to avoid frayed conductors.
Fig.1-1-4
c) Align the lengths of the wires to be connected. In-
sert the wires fully into the connector.
Fig.1-1-5
d) As shown in Fig.1-1-6, use the crimping tool to crimp
the metal sleeve at the center position. Be sure to
crimp fully to the complete closure of the tool.
Fig.1-1-6
e) Check the four points noted in Fig.1-1-7.
Fig.1-1-7
Power cord
cut close to connector
15 mm
Connector
Metal sleeve
1.25
2.0
5.5
Crimping tool
Not easily pulled free Crimped at approx. cente
r
of metal sleev
e
Conductors extended
Wire insulation recessed
more than 4 mm

1-4 (No.YD010)
1.1.2 Safety Check after Servicing
Examine the area surrounding the repaired location for damage
or deterioration. Observe that screws, parts and wires have been
returned to original positions, Afterwards, perform the following
tests and confirm the specified values in order to verify compli-
ance with safety standards.
(1) Insulation resistance test
Confirm the specified insulation resistance or greater be-
tween power cord plug prongs and externally exposed
parts of the set (RF terminals, antenna terminals, video and
audio input and output terminals, microphone jacks, ear-
phone jacks, etc.).See table 1 below.
(2) Dielectric strength test
Confirm specified dielectric strength or greater between
power cord plug prongs and exposed accessible parts of
the set (RF terminals, antenna terminals, video and audio
input and output terminals, microphone jacks, earphone
jacks, etc.). See Fig.1-1-11 below.
(3) Clearance distance
When replacing primary circuit components, confirm spec-
ified clearance distance (d), (d') between soldered termi-
nals, and between terminals and surrounding metallic
parts. See Fig.1-1-11 below.
Fig.1-1-8
(4) Leakage current test
Confirm specified or lower leakage current between earth
ground/power cord plug prongs and externally exposed ac-
cessible parts (RF terminals, antenna terminals, video and
audio input and output terminals, microphone jacks, ear-
phone jacks, etc.).
Measuring Method : (Power ON)Insert load Z between
earth ground/power cord plug prongs and externally ex-
posed accessible parts. Use an AC voltmeter to measure
across both terminals of load Z. See Fig.1-1-9 and follow-
ing Fig.1-1-12.
Fig.1-1-9
(5) Grounding (Class 1 model only)
Confirm specified or lower grounding impedance between
earth pin in AC inlet and externally exposed accessible
parts (Video in, Video out, Audio in, Audio out or Fixing
screw etc.).Measuring Method:
Connect milli ohm meter between earth pin in AC inlet and
exposed accessible parts. See Fig.1-1-10 and grounding
specifications.
Fig.1-1-10
Fig.1-1-11
Fig.1-1-12
NOTE :
These tables are unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.
Chassis
Power cord
primary wire
d'
d
ab
c
V
A
Externally
exposed
accessible part
Z
Exposed accessible part
Grounding Specifications
AC inlet
Region
USA & Canada
Europe & Australia
Grounding Impedance (Z)
Z 0.1 ohm
Z 0.5 ohm
Earth pin
MIlli ohm meter
AC Line Voltage Region
Japan
Europe & Australia
R 1 M /500 V DC
USA & Canada 1 M R 12 M /500 V DC
R 10 M /500 V DC
Insulation Resistance (R)Dielectric Strength Clearance Distance (d), (d')
100 V
100 to 240 V
110 to 130 V
110 to 130 V
200 to 240 V
AC 1 kV 1 minute
AC 1.5 kV 1 minute
AC 1 kV 1 minute
(Class )
(Class )
AC 3 kV 1 minute
AC 1.5 kV 1 minute
d, d' 3 mm
d, d' 4 mm
d, d' 3.2 mm
d' 8 m m (Power cord)
d' 6 m m (Primary wire)
d 4 m m
AC Line Voltage Region
Japan
Europe & Australia
USA & Canada
Load Z Leakage Current (i) a, b, c
100 V
110 to 130 V
110 to 130 V
220 to 240 V
i 1 mA rms
i 0.5 mA rms
i 0.7 mA peak
i 2 mA dc
i 0.7 mA peak
i 2 mA dc
Exposed accessible parts
Exposed accessible parts
Antenna earth terminals
Other terminals
1
1.5
2
50
0.15

(No.YD010)1-5
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
2.1 DIFFERENT TABLE OF FEATURE
The following table indicates main different points between models HR-V610EX, HR-V610EY, HR-V610EZ, HR-V611EX, HR-V611EY,
HR-V611EZ ,HR-V612EX, HR-V612EY, HR-V612EZ, HR-V615EK, HR-V616EK, HR-V617EK, and HR-V715EK.
NOTE:
Mark ←is same as left.
HR-V610EX, HR-
V610EY, HR-V610EZ
HR-V611EX, HR-
V611EY, HR-V611EZ
HR-V612EX, HR-
V612EY, HR-V612EZ HR-V615EK
POWER PLUG CEE ←←BS
BODY COLOR PURE SILVER BLACK PURE SILVER ←
ADVANCED JOG DIAL NOT USED ←←←
VHS
PAL/MESECAM
(MANUAL)/NTSC PB on
PAL TV with HiFi
←←
PAL/NTSC PB on
PAL TV with HiFi
REAR L-2 INPUT SCART IN/DECODER ←←SCART IN
BROADCASTING
STANDARD B/G, D/K ←← I
STEREO DECODER NICAM/A2 ←←NICAM
RF OUT CH/RF OUT
SYSTEM[INITIAL]
22-69CH,
OFF[AUTO]/G,K ←←
22-69CH,
OFF[AUTO]/I
VCR PLUS+ SHOWVIEW DELUXE ←←VIDEOPLUS+ DELUXE
VPS/PDC USED ←←NOT USED
OSD LANGUAGES 13 LANGUAGES ←←ENGLISH
HR-V616EK HR-V617EK HR-V715EK
POWER PLUG BS ←←
BODY COLOR BLACK PURE SILVER ←
ADVANCED JOG DIAL NOT USED ←USED
VHS PAL/NTSC PB on
PAL TV with HiFi
←←
REAR L-2 INPUT SCART IN ←←
BROADCASTING
STANDARD I←←
STEREO DECODER NICAM ←←
RF OUT CH/RF OUT
SYSTEM[INITIAL]
22-69CH,
OFF[AUTO]/I ←←
VCR PLUS+ VIDEOPLUS+ DELUXE ←←
VPS/PDC NOT USED ←←
OSD LANGUAGES ENGLISH ←←

1-6 (No.YD010)
2.2 Service position
This unit has been designed so that the Mechanism and Main
board assemblies can be removed together from the chassis as-
sembly. Before diagnosing or servicing the circuit boards, take
out the major parts from the chassis assembly.
2.2.1 How to set the "Service position"
(1) Refer to the disassembly procedure and perform the disas-
sembly of the major parts before removing the Mechanism
assembly.
(2) Remove the screws that fix the Mechanism assembly to
the Chassis assembly. If any other screws are used to fix
the boards, remove them also.
(3) Remove the combined Mechanism and Main board assem-
blies.
(4) If any other major parts are used, remove them also.
(5) Connect the wires and connectors of the major parts that
have been removed in steps (1) to (4). (Refer to Fig. 2-2a.)
(6) Place the combined Mechanism, Main board and other
board assemblies upside down.
(7) Insert the power cord plug into the power outlet and then
proceed with the diagnostics and servicing of the board as-
sembly.
Notes:
•Before inserting the power cord plug into the power out-
let, make sure that none of the electrical parts are able
to short-circuit between the workbench and the board
assembly.
•For the disassembly procedure of the major parts and
details of the precautions to be taken, see "3.1 Remov-
ing the major parts".
•If there are wire connections from the Main board and
Mechanism assemblies to the other major parts, be sure
to remove them (including wires connected to the major
parts) first before performing step (2).
•When carrying out diagnosis and repair of the Main
board assembly in the "Service position", be sure to
ground both the Main board and Mechanism assem-
blies. If they are improperly grounded, there may be
noise on the playback picture or FDP counter display
may move even when the mechanism is kept in an inop-
erative status.
•In order to diagnose the playback or recording of the cas-
sette tape, set the Mechanism assembly to the required
mode before placing it upside down. If the mechanism
mode is changed (including ejection) while it is in an up-
side down position the tape inside may be damaged.
•For some models, the mechanism and board assem-
blies are attached by connectors only. When carrying
out a diagnosis or repair of the boards in the "Service
position", make sure that the connectors are not dis-
connected.
Fig.2-2a
2.3 Jig RCU mode
This unit uses the following two modes for receiving remote con-
trol codes.
(1) User RCU mode:Ordinary mode for use by the user.
(2) Jig RCU mode: Mode for use in production and servicing.
When using the Jig RCU, it is required to set the VCR to the Jig
RCU mode (the mode in which codes from the Jig RCU can be
received). As both of the above two modes are stored in the EE-
PROM, it is required to set the VCR back to the User RCU mode
each time that an adjustment is made or to check that the neces-
sary operations have been completed.These modes can be set
by the operations described below.
2.3.1 Setting the Jig RCU mode
(1) Unplug the power cord plug from the power outlet.
(2) Press and hold the "REC" and "PAUSE" buttons on the
VCR simultaneously, while plugging the power cord plug
into the power outlet.
When the VCR is set to the Jig RCU mode, the symbols
( " : " ) in the time display of the FDP are turned off.
2.3.2 Setting the User RCU mode
(1) Turn off the power.
(2) Press the "REC" and "PAUSE" buttons of the VCR simulta-
neously. Alternatively, transmit the code "80" from the Jig RCU.
2.4 Mechanism service mode
This model has a unique function to enter the mechanism into ev-
ery operation mode without loading of any cassette tape. This
function is called the "Mechanism service mode".
2.4.1 How to set the "Mechanism service mode"
(1) Set the VCR to the Jig RCU mode (the mode in which
codes from the Jig RCU can be received).
(2) Transmit the code "E5" from the Jig RCU.
(3) Release the lug of the Cassette holder and then slide the
Cassette holder toward the direction where the Cassette
holder is loaded by manually.
(4) The cassette holder lowers and, when the loading has
completed, the mechanism enters the desired mode.
When the VCR is set to the Mechanism service mode, the
symbols ("Timer") in the FDP (LED) are blinked.
2.4.2 How to exit from the "Mechanism service mode"
(1) Unplug the power cord plug from the power outlet.
Main board
assembly
TP2253
A.PB.FM
TP106
PB.FM
TP2254
A.REC.FM
C3025
TIMER
CLOCK
TP4001
CTL.P
TP111
D.FF
User RCU mode
( :not displayed)
Jig RCU mode

(No.YD010)1-7
2.5 Maintenance and inspection
2.5.1 Cleaning
Regular cleaning of the transport system parts is desirable but
practically impossible. So make it a rule to carry out cleaning of
the tape transport system whenever the machine is serviced.
When the video head, tape guide and/or brush get soiled, the
playback picture may appear inferior or at worst disappear, re-
sulting in possible tape damage.
Note:
•Absolutely avoid sweeping the upper drum vertically as
this will cause damage to the video head.
(1) When cleaning the upper drum (especially the video head),
soak a piece of closely woven cloth with alcohol and while
holding the cloth onto the upper drum by the fingers, turn
the upper drum counterclockwise.
(2) To clean the parts of the tape transport system other than
the upper drum, use a piece of closely woven cloth or a cot-
ton swab soaked with alcohol.
(3) After cleaning, make sure that the cleaned parts are com-
pletely dry before using the cassette tape.
Fig.2-5a
2.5.2 Lubrication
With no need for periodical lubrication, you have only to lubricate
new parts after replacement. If any oil or grease on contact parts
is soiled, wipe it off and newly lubricate the parts.
Note:
•See the "mechanism assembly" diagram of the "parts
list" for the lubricating or greasing spots, and for the
types of oil or grease to be used.
2.5.3 Suggested servicing schedule for main components
The following table indicates the suggested period for such ser-
vice measures as cleaning, lubrication and replacement. In prac-
tice, the indicated periods will vary widely according to
environmental and usage conditions. However, the indicated
components should be inspected when a set is brought for ser-
vice and the maintenance work performed if necessary. Also
note that rubber parts may deform in time, even if the set is not
used.
C : Cleaning
X : Inspection or Replacement if necessary
Video heads
A/C head
System Parts name Operation hours
1000H 2000H
Tape
transport
Drum assembly C,X X
A/C head C,X C,X
Pinch roller arm assembly C C
Full erase head C C
Tension arm assembly C C
Capstan motor (Shaft) C C
Guide arm assembly C C
Drive
Capstan motor X
Capstan brake assembly X
Main brake assembly X
Belt (Capstan) X X
Loading motor X
Clutch unit X
Worm gear X
Control plate X
Other Rotary encoder X

1-8 (No.YD010)
SECTION 3
DISASSEMBLY
3.1 Removing the major parts
3.1.1 How to read the procedure table
This table shows the steps for disassembly of the externally fur-
nished parts and board assemblies. Reverse these steps when
re-assembling them.
(1) Order of steps in Procedure
When reassembling, perform the step(s) in the reverse or-
der.
These numbers are also used as the identification (loca-
tion) No. of parts Figures.
(2) Part name to be removed or installed.
(3) Fig. No. showing procedure or part location.
(4) Identification of part to be removed, unhooked, unlocked,
released, unplugged, unclamped or unsoldered.
P= Spring, W= Washer, S= Screw, L= Locking tab, SD=
Solder, CN**(WR**)= Remove the wire (WR**) from the
connector (CN**).
Note:
•The bracketed ( ) WR of the connector symbol are
assigned nos. in priority order and do not corre-
spond to those on the spare parts list.
(5) Adjustment information for installation
3.1.2 Disassembly procedure
< Note 2a >
• When reattaching the Front panel assembly, make sure that
the door opener of the Side frame (R) is lowered in position pri-
or to the reinstallation.
• When reattaching the Front panel assembly, pay careful attention
to the switch lever of the Front panel assembly not to make it
touch the switch knob of the Main board assembly from the side.
• When reattaching the Front panel assembly, lift the Cassette
door slightly.
Fig.3-1a
< Note 3a >
• Be careful not to damage the connector and wire etc. during
connection and disconnection.
• When connecting the flat wire to the connector, be careful with
the flat wire direction.
< Note 3b >
• When reattaching the Mechanism assembly, secure the
screws (S3a to S3b) in the order of a, b.
< Note 3c >
• When reattaching the Mechanism assembly, be sure to align
the phase of the Rotary encoder on the Main board assembly.
• When reattaching the Mechanism assembly, set the "Mecha-
nism assembling mode". [See "MECHANISM ASSEMBLY
SERVICE MANUAL (No. 86700)".]
• When reattaching the Mechanism assembly to the Main board
assembly, take care not to damage the sensors and switch on
the Main board assembly.
< Note 3d >
• When reattaching the Drum assembly, secure the screws (S3c
to S3e) in the order of c, d, e.
Fig.3-1b
• When handling the drum assembly alone, hold it by the motor
or shaft. Be careful not to touch other parts, especially the vid-
eo heads. Also take care not to damage the connectors.
Fig.3-1c
(1) (2) (3) (4) (5)
Step/
Loc No.
Part Name Fig.
No. Point Note
[1] Top cover 3-1a 4(S1a),(S1b),3(L1a), <Note 1a>
2(SD1a),(P1a),(W1a),
CN1(WR1a),
Bracket 2(S1c)
----------------------------------------
Step/
Loc No.
Part Name Fig.
No. Point Note
[1] Top cover 3-1d 4(S1a), (S1b)
[2] Front panel assembly
3-1d
3-1a
2(S2a), 6(L2a), 3(L2b) < Note 2a >
CN7001(WR2a)
[3] Mechanism assembly
3-1d
3-1b
3-1c
CN2001(WR3a), <
Note 3a >
<
Note 3a >
2(S3a) <
Note 3b >
(Drum assembly) <
Note 3c >
<
Note 3d >
CN1(WR3b),
(S3c), (S3d), (S3e),
[4]
Main board assembly 3-1d 3(S4a),(S4b)
[5]
Bottom cover 3-1d 4(L5a),3(L5b),3(L5c)
--------------------------
Door
opener
Side
frame(R) Switch
knob
Switch
lever
<Note 3c>
(S3c)
(S3c)
(S3e) (S3e)
(S3d)
(S3d)
Mechanism
assembly
Drum
assembly
<NOTE>
Attach the Drum assembly appropriately,
since the installation state of the Drum assembly
influences the FM WAVEFORM LINEARITY
greatly.
HOOK
Shaft
Video heads
Motor

(No.YD010)1-9
Fig.3-1d
TOP SIDE
BOTTOM SIDE
NOTE) INSERT FFC WIRE TO THE CONNECTOR BEFORE
ATTACHING TO FRONT PANEL.
NOTE) WHEN YOU FIX ANY PWB WITH THE SCREW.
PUT IT ON THE JIGS.
CN7003
CN7004
Adv.jog board assembly
(WR2a)
<Note 3a>
<WR3a>
<Note 3a>
<WR3b>
<Note 3a>
<Phase alignment>
.Accord the position of V gap on R.ENCORDER and PWB silk
.Accord the position of Boss on R.ENCORDER and PWB silk
JS3001
b
d'c'
g
k
m
m
(S2a)
(L2a)
(L2a)
(L2b)
(L2b)
(L2a)
(S2a)
(S4b)
Insert the bushing of POWER CORD
so as not to twist the cord.
d
c
c
NOTE) CONFIRM THE DOOR OPENER IS DOWN.ATTACH THE
F.PANEL AFTER THE CASSETE DOOR IS LIFTED UP.
(S3a)
(S3a)
(S3e)
<Note 3d>
(S3d)
<Note 3d>
(S3c)
<Note 3d>
[3]Drum assembly
<Note 3d>
[3]Machanism assembly
<Note 3c>
c'
JS3001
b
Q3003
D3001
Q3002
d'
c'
c
c
d
CN5001
g
(S4a)
(S4a)
(S4a)
[4]Main board assembly
SAT CTL board assembly
[2]Front panel assembly
<Note 2a>
Cassette door
<Note 2a>
[1]Top cover
(S1b)
(S1a)
(S1a)
[5]Bottom cover
Bottom chassis
(L5a)
(L5a)
(L5c)
(L5b)
2. FFC WIRE and DRUM FPC WIRE
should be insert as follows.
1. Insert direction of FFC WIRE as follows.
3. Insert direction of POWER CORD.
NEUTRAL
CN5001
US/UC/JPN
WHITE LINE
CN
electrode side
90
OK
right side
CN5001
NEUTRAL
BLUE
except US/UC/JPN
CN CN
supporting side
NG
back side
NOTE
CN7102
DRUM
A/C HEAD
CN2001 CN5001
Ensure wire is not slanting after insert.
CN512
L6002 C7128
Dress WIRE between L6002 and C7128,
At this time ensure WIRE is laid on the PWB.
(To prevent interferance from WIRE to TU
PACK)
back side
Bend
CN7001
CN1601

1-10 (No.YD010)
SECTION 4
ADJUSTMENT
4.1 Before adjustment
4.1.1 Precaution
•The adjustments of this unit include the mechanism com-
patibility and electrical adjustments. During the perfor-
mance of this work, be sure to observe the precautions for
each type of adjustment.
•If there is a reference to a signal input method in the signal
column of the adjustment chart, "Ext. S-input" means the
Y/C separated video signal and "Ext. input" means the
composite video signal input.
•Unless otherwise specified, all measuring points and
adjustment parts are located on the Main board.
4.1.2 Required test equipments
• Color (colour) television or monitor
• Oscilloscope: wide-band, dual-trace, triggered delayed sweep
• Signal generator: RF / IF sweep / marker
• Signal generator: stairstep, color (colour) bar [PAL]
• Recording tape
• Digit-key remote controller(provided)
4.1.3 Required adjustment tools
z: Used --- : Not used
4.1.4 Color (colour) bar signal,Color (colour) bar pattern
4.1.5 Switch settings
When adjusting this unit, set the VCR mode and switches
as described below.
• When using the Jig RCU, it is required to set the VCR to the
Jig RCU mode (the mode in which codes from the Jig RCU can
be received). (See "section 2 SPECIFIC SERVICE INSTRUC-
TIONS".)
Fig.4-1a Jig RCU [PTU94023B]
• Set the switches as shown below unless otherwise specified
on the relevant adjustment chart. The switches that are not list-
ed below can be set as desired.
If the VCR is not equipped with the functions detailed below,
setup is not required.
4.1.6 Manual tracking mode (Auto tracking ON/OFF) set-
ting
(1) In order to set to the manual tracking mode during tape
playback, press the "SP/EP(LP)"button on the remote con-
trol unit.
• Each press of the button switches the auto tracking ON
or OFF.
• When the manual tracking mode is set, the tracking is
placed at the center position.
(2) Press "channel +/-" to adjust the tracking manually.
Mechanism
compatibility
adjustment
Electrical
adjustment
Roller driver z---
Jig RCU --- z
Back tension cassette gauge z---
Alignment tape(MHPE) z---
Alignment tape(MHPE-L) zz
Roller driver
PTU94002
Back tension cassette gauge
PUJ48076-2
Jig RCU
PTU94023B
Alignment tape
(SP, stairstep, PAL)
MHPE
Alignment tape
(LP, stairstep, PAL)
MHPE-L
AUTO PICTURE/VIDEO CALIBRATION/
B.E.S.T./D.S.P.C.
OFF
PICTURE CONTROL/SMART PICTURE NORMAL/NATURAL
VIDEO STABILIZER OFF
TBC ON
Digital 3R ON
VIDEO NAVIGATION/TAPE MANAGER OFF
BLUE BACK OFF
(75%)
White(75%)
0.7 V
0.3 V
Horizontal sync
VU
1V
White(100%)
Yellow Cyan
Green
Magenta
Red
Blue
Burst
0.3 V
V(R-Y)
U(B-Y)
White
Yellow
Cyan
Green
Magenta
Red
Blue
U Black
White
100%
V
Colour bar signal [PAL] Colour bar pattern [PAL]
INITIAL MODE
DATA CODE
CUSTOM CODE
43: A CODE
[Data transmitting method]
Depress the " "( 3 ) button
after the data code is set.
Jig RCU