SERVICE MANUAL
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED
No.YD001
2003/10
DVD PLAYER & VIDEO CASSETTE RECORDER
YD001
2003
10
HR-XVC30US, HR-XVC33UC,
HR-XVC33UM, HR-XVC33US,
HR-XVS44UC, HR-XVS44UJ,
HR-XVS44US
TABLE OF CONTENTS
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
HR-XVC30US,HR-XVC33UC,HR-XVC33UM,HR-XVC33US,HR-XVS44UC,HR-XVS44UJ,HR-XVS44US [D3PV1,D3PS1]
(VHS model)
(VHS model)
(S-VHS model)
(S-VHS model)
1-2 (No.YD001)
SPECIFICATION
· Specifications shown are for SP mode unless otherwise specified.
· E.& O.E. Design and specifications subject to change without notice.
· Manufactured under license from Dolby Laboratories. "Dolby" and the double-D symbol are trademarks of Dolby Laboratories.
· "DTS" and "DTS Digital Out" are trademarks of Digital Theater Systems, Inc.
HR-XVC30US,HR-XVC33US,
HR-XVC33UC
HR-XVC33UM
HR-XVS44US,HR-XVS44UC
HR-XVS44UJ
GENERAL
Power requirement
AC 120 V, 60 Hz
AC 110 - 120 V, 50 Hz/60 Hz
AC 120 V, 60 Hz
AC 110 - 120 V, 50 Hz/60 Hz
Power consumption
Power on
27 W
28 W
26 W
Power off
3.1 W
4.9 W
Temperature
Operating
5
°C to 40°C (41°F to 104°F)
Storage
-20
°C to 60°C (-4°F to140°F)
Operating position
Horizontal only
Dimensions (W
× H × D)
435 mm
× 93 mm × 272 mm
Weight
4.4 kg
Format
VHS NTSC standard
S-VHS/VHS NTSC standard
Maximum recording time
(SP)
210 min. with ST-210 video cassette
(EP)
630 min. with ST-210 video cassette
VIDEO/AUDIO (VCR deck)
Signal system
NTSC colour signal and EIA monochrome signal, 525 lines/60 fields
Recording system
DA4 (Double Azimuth) head helical scan system
Signal-to-noise ratio
45 dB
Horizontal resolution
230 lines
230 lines (VHS)/400 lines (S-VHS)
Frequency range
70 Hz to 10,000 Hz (Normal audio) 20 Hz to 20,000 Hz (Hi-Fi audio)
Input/Output RCA connectors: IN
× 1, OUT × 1 RCA connectors: IN × 2, OUT × 1
RCA connectors: IN
× 2, OUT × 1
S-Video connectors:IN
× 2, OUT × 1
VIDEO/AUDIO (DVD deck)
Signal system
NTSC
Applicable disc
DVD (12 cm, 8 cm), CD (12 cm, 8 cm)
Audio characteristics
DVD:4 Hz - 22 KHz
Frequency response
CD:4 Hz - 20 KHz
S/N Ratio
90 dB
Harmonic distortion
0.1%
Wow and flutter
Below Measurable Level
Dynamic range
90 dB
Output
Component-Y
(RCA) 1.0 Vp-p/75
Component-PB/PR
(RCA) 0.7 Vp-p/75
Audio
(RCA) 2 Vrms, 1 K
Digital Audio
(COAXIAL) 0.5 Vp-p/75
,(OPTICAL) -21 dBm to -15 dBm(peak)
TUNER
Tuning system
Frequency synthesized tuner
Channel coverage
VHF: Channels 2 - 13, UHF: Channels 14 - 69,CATV: 113 Channels
RF output
Channel 3 or 4 (switchable; preset to Channel 3 when shipped) 75
, unbalanced
TIMER
Clock reference
Quartz
Program capacity
1-year programmable timer/8 programs
Memory backup time
Approx. 5 seconds
Approx. 3 minutes
Approx. 5 seconds
ACCESSORIES
Provided accessories RF cable,Infrared remote control
unit, "AA" battery
× 2
RF cable,Infrared remote control
unit, "AA" battery
× 2,Conversion
plug
RF cable,S-Video cable (4-pin),
Infrared remote control unit, "AA"
battery
× 2
RF cable,S-Video cable (4-pin),
Infrared remote control unit, "AA"
battery
× 2,Conversion plug
(No.YD001)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
1.2
5
2.0
5.5
Crimping tool
Not easily pulled free
Crimped at approx. center
of metal sleeve
Conductors extended
Wire insulation recessed
more than 4 mm
1-4 (No.YD001)
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.YD001)1-5
1.2
Preventing static electricity
Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser
diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.
1.2.1
Grounding to prevent damage by static electricity
Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as DVD players.
Be careful to use proper grounding in the area where repairs are being performed.
(1) Ground the workbench
Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the
traverse unit (optical pickup) on it.
(2) Ground yourself
Use an anti-static wrist strap to release any static electricity built up in your body.
(3) Handling the optical pickup
· In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optical
pickup are shorted. After replacement, return the shorted parts to their original condition.
(Refer to the text.)
· Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power source can easily
destroy the laser diode.