SERVICE MANUAL
COLOR TELEVISION/
VIDEO CASSETTE RECORDER
FILE NO. 140-200117
MV20FL3
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
TV
CRT
CRT Size / Visual Size
20 inch
/ 508.0 mmV
System
CRT Type
Flat
Deflection
90
degree
Magnetic Field
BV/BH
+ 0.45 G
/ 0.18 G
Color System
NTSC
Speaker
2 Speaker
Position
Front
Size
3 Inch
Impedance
8
ohm
Sound Output
MAX
1.5W + 1.5W
10%(Typical)
1.5W + 1.5W
G-2
VCR
System
VHS Player / Recorder
System
Video System
NTSC
Hi-Fi STEREO
Yes
NTSC PB
No
Deck
DECK
OVD-6S
Loading System
Front
Motor
3
Heads
Video Head
4 Head
FM Audio Head
2 Head
Audio /Control
Mono
/Yes
Erase(Full Track Erase)
Yes
Tape
Rec
PAL
-
Speed
NTSC
SP/SLP(EP)
Play
PAL
-
NTSC
SP/SLP(EP)
Fast Forward / Rewind Time (Approx.)
FF:4'50"/REW:2'30"
with Cassette
T-120
Forward/Reverse
NTSC or PAL-M
SP/SLP(EP) = 3x,5x / 9x,15x
Picture Search
Frame Advance
1/10
Slow Speed
1/10
G-3
Tuning
Broadcasting System
US System M
System
Tuner and
System
1 Tuner
Receive CH
Destination
US(w/CATV)
Tuning System
F-Synth
Input Impedance
VHF/UHF 75 ohm
CH Coverage
2~69, 4A,A-5~A-1, A~I,
J~W,W+1~W+84
Intermediate
Picture(FP)
45.75MHz
Frequency
Sound(FS)
41.25MHz
FP-FS
4.5MHz
Preset CH
No
Stereo/Dual TV Sound
US-ST
Tuner Sound Muting
Yes
G-4
Signal
Video Signal
Input Level
1 V p-p/75 ohm
Output Level
1 V p-p/75 ohm
S/N Ratio (Weighted)
50
Horizontal Resolution at SP Mode
220Line
Audio Signal
Input Level
-8dB/50Kohm
(0dB=0.775Vrms)
Output Level
-8dB/1Kohm
S/N Ratio at SP (Weighted)
38
Harmonic Distortion (1KHz)
1.5
%
Frequency Response
at SP
100Hz - 10kHz
at LP
-
at SLP
100Hz - 4kHz
Hi-Fi Audio Signal
Dynamic Range : More than
90
dB
Wow And Flutter : Less than
0.01
%Wrms
Channel Separation : More than
60
dB
Harmonic Distortion : Less than
1.0
%
G-5
Power
Power Source
AC
120V,60Hz
DC
-
Power Consumption
at AC
115 W
at 120 V 60 Hz
at DC
-
Stand by (at AC)
5 W
at 120 V 60 Hz
Per Year
-
Protector
Power Fuse
Yes
Dew Sensor
No
G-6
Regulation
Safety
UL
Radiation
FCC
X-Radiation
DHHS
G-7
Temperature
Operation
+5oC ~ +40oC
Storage
-20oC ~ +60oC
G-8
Operating Humidity
Less then 80% RH
GENERAL SPECIFICATIONS
G-9
On Screen
Menu
Yes
Display
Menu
Type
Character
Timer Rec Set
Yes
Channel Setup
Yes
TV/CATV
Yes
Auto CH Memory
Yes
Add/ Delete
Yes
Guide CH Set
No
TV Setup
Yes
V-chip Set
Yes
On/Off Timer Set
Yes
Picture
Yes
Audio
Yes
Sap On/Off
Yes
Auto Repeat On/Off
Yes
System Setup
Yes
Clock Set
Yes (Calendar 12h)
Language
Yes
Auto Clock On/Off
Yes
Standard Time
Yes
Daylight Saving Time
Yes
Commercial Advance
No
Marking On/Off
No
Blueback On/Off
No
Playback Auto/Manual
No
Unmarked Tape
No
Movie Advance
No
Go To Movie
No
Go To Preview
No
G-CODE(or SHOWVIEW or PLUSCODE)No. Entry
No
Clock / Date
Yes
CH/AV
Yes
Tape Counter(Linear Counter)
Yes
Tape Speed
Yes
Sleep Time
Yes
Stereo/Audio Output
Yes
Bilingal
No
SAP
Yes
Control
Volume
Yes
Level
Bright / Contrast / Sharpness / Color
Yes
Tint
Yes
Bass/Treble/Balance
Yes
Manual Tracking
Yes
Play/Stop/FF/Rew/Rec/OTR/T-Rec/Pause/Eject/Tape In
(Symbol Mark)
Yes
Auto Tracking/Manual Tracking
Yes
Caption / Text
Yes
Index
No
Muting
Yes
Hi-Fi
Yes
Repeat
Yes
Zero Return
No
DEW
No
G-10
OSD Language
English French
Spanish
OSD Language Setting
English
G-11
Clock,Timer
Calendar
1990/1/1 ~ 2081/12/31
and Timer
Timer Events
8 Program/ 1 Month
Back-up
One Touch Recording Max Time
5 Hours
OTPB
Valid Time
No
Sleep Timer
Max Time
120
Min
Step
10
Min
On/Off Timer
Program(On Timer / Off Timer)
1
Program
Auto Shut Off
No Signal
15 Min
No Operation
No
Timer Back-up (at Power Off Mode)
5
Sec
GENERAL SPECIFICATIONS
G-12
Remote
Unit
RC-DQ
Control
Glow in Dark Remocon
Yes
Format
NEC
Custom Code
40-BFh,44-BBh
Power Source
Voltage(D.C)
3V
UM size x pcs
UM-4 x 2 pcs
Total Keys
44
Keys
Keys
Power
Yes
1
Yes
2
Yes
3
Yes
4
Yes
5
Yes
6
Yes
7
Yes
8
Yes
9
Yes
0
Yes
CH Up
Yes
CH Down
Yes
Volume Up
Yes
Volume Down
Yes
Input Select
Yes
Play
Yes
F.Fwd
Yes
Rew
Yes
Pause/Still
Yes
Stop
Yes
Rec/OTR
Yes(2Keys)
Eject
Yes
Counter Reset
Yes
Speed
Yes
Timer Rec
Yes(2Keys)
TV Monitor
No
Quick View
Yes
Program
Yes
Slow
Yes
Auto Tracking
Yes
Set/Tracking+
Yes
Set/ Tracking -
Yes
Menu
Yes
Enter
Yes
Cancel
Yes
Call
Yes
TV/Caption/Text
Yes
Sleep Timer
Yes
Muting
Yes
Zero Return
Yes
CM Skip
Yes
Audio Select
Yes
G-13
Features
Auto Head Cleaning
Yes
Auto Tracking
Yes
HQ (VHS Standard High Quality)
Yes
Auto Power On, Auto Play, Auto Rewind, Auto Eject
Yes
VIDEO PLUS+(SHOWVIEW,G-CODE)
No
Auto Clock
Yes
Forward / Reverse Picture Search
Yes
Reverse Slow
No
One Touch Playback
No
Auto CH Memory
Yes
Closed Caption
Yes
TV Auto Shut off Function
Yes
End Call
No
Index Search
No
SQPB
No
CATV
Yes
CM Skip(30sec x 6 Times)
Yes
Comb Filter
Yes
TV Monitor
No
Program Extend
No
Choke Coil
No
Energy Star
Yes
Protect of FBT Leak Curcuit
Yes
Dirty Head
No
V-chip
USA V-chip
Yes
CANADA V-chip
No
CM Advance
No
Movie Advance
No