SERVICE MANUAL
COLOR TELEVISION/
VIDEO CASSETTE RECORDER
FILE NO. 140-200011
MV20FK3
SERVICING NOTICES ON CHECKING
6. AVOID AN X-RAY
1. KEEP THE NOTICES
As for the places which need special attentions,
they are indicated with the labels or seals on the
cabinet, chassis and parts. Make sure to keep the
indications and notices in the operation manual.
3. USE THE DESIGNATED PARTS
5. TAKE CARE TO DEAL WITH THE
CATHODE-RAY TUBE
In the condition that an explosion-proof cathode-
ray tube is set in this equipment, safety is
secured against implosion. However, when
removing it or serving from backward, it is
dangerous to give a shock. Take enough care to
deal with it.
Safety is secured against an X-ray by consider-
ing about the cathode-ray tube and the high
voltage peripheral circuit, etc.
Therefore, when repairing the high voltage pe-
ripheral circuit, use the designated parts and
make sure not modify the circuit.
Repairing except indicates causes rising of high
voltage, and it emits an X-ray from the cathode-
ray tube.
Please include the following informations when you order parts. (Particularly the VERSION LETTER.)
1. MODEL NUMBER and VERSION LETTER
The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be
found at the end of the SERIAL NUMBER.
2. PART NO. and DESCRIPTION
You can find it in your SERVICE MANUAL.
HOW TO ORDER PARTS
PERFORM A SAFETY CHECK AFTER
SERVICING
7.
Confirm that the screws, parts and wiring which
were removed in order to service are put in the
original positions, or whether there are the
portions which are deteriorated around the
serviced places serviced or not. Check the
insulation between the antenna terminal or
external metal and the AC cord plug blades.
And be sure the safety of that.
(INSULATION CHECK PROCEDURE)
1.
2.
3.
4.
Unplug the plug from the AC outlet.
Remove the antenna terminal on TV and turn
on the TV.
Insulation resistance between the cord plug
terminals and the eternal exposure metal
[Note 2] should be more than 1M ohm by
using the 500V insulation resistance meter
[Note 1].
If the insulation resistance is less than 1M
ohm, the inspection repair should be
required.
[Note 1]
If you have not the 500V insulation
resistance meter, use a Tester.
[Note 2]
External exposure metal: Antenna terminal
Earphone jack
2. AVOID AN ELECTRIC SHOCK
There is a high voltage part inside. Avoid an
electric shock while the electric current is
flowing.
The parts in this equipment have the specific
characters of incombustibility and withstand
voltage for safety. Therefore, the part which is
replaced should be used the part which has
the same character.
Especially as to the important parts for safety
which is indicated in the circuit diagram or the
table of parts as a
mark, the designated
parts must be used.
4. PUT PARTS AND WIRES IN THE
ORIGINAL POSITION AFTER
ASSEMBLING OR WIRING
There are parts which use the insulation
material such as a tube or tape for safety, or
which are assembled in the condition that
these do not contact with the printed board.
The inside wiring is designed not to get closer
to the pyrogenic parts and high voltage parts.
Therefore, put these parts in the original
positions.
GENERAL SPECIFICATIONS
G-1.Outline of the Product
20
inch(
508.0
mmV):Measured diagonally
Color CRT
90
degree deflection
2
-Speed 1/2" Video Cassette Recorder
VHS
Recorder/Player
VHS-C
Player
G-2.VCR Format
VHS Standard
NTSC
PAL
SECAM
PAL-M
PAL-N
VHS Hi-Fi Audio System
G-3.Video Recording System
:Rotary,slant azimuth two head helical scan system
Luminance Component
:FM recording
Chrominance Component
:Low frequency converted direct recording
G-4.Broadcasting System
US
System
M
G-5.Color System
NTSC
PAL
SECAM or Monochrome signal
G-6.NTSC Playback(PAL 60Hz)
Yes
No
Not Applicable
G-7.MESECAM
Yes
No
Not Applicable
G-8.Cassette Tape
VHS type video cassette tape
Width 12.65mm (1/2 Inch)
VHS-C type video cassette tape
Width 12.65mm (1/2 Inch)
G-9.Tape Speed
NTSC or PAL-M
PAL or SECAM
SP
33.35 mm/sec
SP
23.39 mm/sec
LP
16.67 mm/sec
LP
11.69 mm/sec
SLP(EP)
11.12 mm/sec
G-10.Recording/Playback Time
NTSC or PAL-M
at SP
Mode Max. 210 min. (with T-210 cassette)
at LP
Mode Max. 420 min. (with T-210 cassette)
at SLP(EP)
Mode Max. 630 min. (with T-210 cassette)
PAL or SECAM
at SP
Mode Max. 300 min. (with E-300 cassette)
at LP
Mode Max. 600 min. (with E-300 cassette)
G-11.Deck
OVD-5
OVD-6
OVD-6S
G-12.Rewind/Fast Forward Time(Approx.)
FF:1'48" / Rew:1'48"
(with T-120 cassette)
(with E-180 cassette)
G-13.Search Speed
SP
3 and
5
Times
LP
Times
SLP(EP)
9 and 15
Times
G-14.Slow Speed
SP
1/10
Times
LP
Times
SLP(EP)
1/10
Times
G-15.Frame Advance
LP
Times
SLP(EP)
1/10
Times
GENERAL SPECIFICATIONS
G-16.Antenna Input Impedance
VHF/UHF
75 ohm unbalanced
G-17.Tuner and Receiving channel
1Tuner System
2Tuner System
BS Tuner
Tuner : Contactless Electric tuner
Oscar(W/O HYPER)
Oscar(W/ HYPER)
France CATV)
Others
channel coverage
2 ~ 69 ,
4A
,
A-5 ~ A-1 ,
A ~ I ,
J ~ W ,
W+1 ~ W+84
Tuning System
Frequency syn.
Voltage syn.
Others
G-18.Preset Channel:
--
channels
G-19.Intermediate Frequency
Picture(FP)
45.75
MHz
MHz
MHz
Sound (FS)
41.25
MHz
MHz
MHz
FP-FS
4.50
MHz
MHz
MHz
G-20. Stereo/Dual TV Sound
Yes( NICAM
GERMAN
USA
JAPAN
JAPAN BS)
No
G-21.Video Signal
Input Level
1
Vp-p /
75
ohm
Output Level
1
Vp-p /
75
ohm
S/N Ratio
50
dB (Weighted)
Horizontal Resolution at SP Mode
220
Lines
G-22.Audio Signal
Input Level
Line
-
dB /
-
Kohm
RCA
-
8
dB /
50
Kohm
Output Level
Line
-
dB /
-
Kohm
RCA
- 8
dB /
1
Kohm
(0dB=0.775 V rms)
S/N Ratio at SP Mode
38
dB
Harmonic Distortion :
1.5
% (1KHz)
Frequency Response :
at SP
Mode
100
Hz ~
10
KHz
at LP
Mode
Hz ~
KHz
at SLP(EP)
Mode
100
Hz ~
4
KHz
Hi-Fi Model's Spes
NONE
Depth Multiplex Recording Rotary, Slant Azimuth Two Head
System
Helical Scan System
Frequency Response :
20
Hz ~
20
KHz(+-6dB)
Dynamic Range : More than
90
dB
Wow And Flutter : Less than
0.01
% Wrms
Channel Separation : More than
60
dB
Harmonic Distortion : Less than
1
%
G-23.Heads
Video
4
Rotary Heads
Track Width
(SP : 1ch
49
µm, 2ch 58 µm, SLP : 1ch 21 µm, 2ch 21 µm)
FM Audio
2
Rotary Heads
Track Width(SP/SLP : 1ch
27
µm, 2ch 27 µm)
Audio / Control
1
Stationary Head (
Mono
Stereo(L,R) )
Erase
1
Full Track Erase
G-24.Motor:
3
Motors
Tape/Cassette Loading
Capstan (Direct Drive)
G-25.Power Source
120
V
AC 50Hz
AC 60Hz
EXT DC Jack
-
V
GENERAL SPECIFICATIONS
G-26.Power Consumption:
115
W at AC
120
V
60 Hz(Approx.)
-
W at DC
-
V
(at TV and VCR ON)
Stand by:
5
W at AC
120
V
60 Hz(Approx.)
Per Year:
---
kWh / Year
G-27.Dimensions(Approx.)
502
mm(W)
481.5
mm(D)
513
mm(H)
G-28.Weight(Approx.)
Net
:
26.5 Kg ( 58.5 lbs)
Gross:
28.5 Kg ( 62.9 lbs)
G-29.Cabinet Material
Cabinet Front:
PS
94HB
DECABROM
ABS
94V2
NON-DECA
94V0
Cabinet Rear:
PS
94HB
DECABROM
ABS
94V2
NON-DECA
94V0
Jack Panel:
PS
94HB
DECABROM
ABS
94V2
NON-DECA
94V0
G-30.Cassette Loading System:
Front Cassette Loading System
Top Loading System
G-31.Tape Counter:
Linear Time Tape Counter
G-32.Protector:
Power Fuse
Dew Sensor
G-33.Regulation
Safety
UL
CSA
SAA
SI
CE
SEV
BS
NF
NEMKO
FEMKO
DEMKO
IEC65
SEMKO
NZ
HOMOLO
SABS
CNS
SISIR
NOM
AS3159
DENTORI
UNE
GOST
NONE
Radiation
FCC
DOC
FTZ
PTT
CE
SEV
SABA
SI
NF
NZ
HOMOLO
UNE
CNS
CISPR13
DENTORI
AS/NZS
NONE
X-Radiation
DHHS
HWC
PTB
DENTORI
NONE
G-34.Temperature
Operation
5
ºC
~
40
ºC
Storage
-20
ºC
~
60
ºC
G-35.Operating Humidity
Less than
80
%RH
G-36.Clockand Timer
Calender :
1990/1/1 ~ 2081/12/31
(Initial
2000/1/1
2005/1/1)
Built-in
1
Month
8
Events Programmable Timer
One Touch Recording : Max Time
5
Hours
Sleep Timer
Yes Max
120
Min.(
10
Min. Step)
No
On/Off Timer
Yes
1
Programs
No
Wake Up Timer
Yes
Programs
No
Auto Shut Off
15
Minutes