COLOR TELEVISION/
VIDEO CASSETTE RECORDER/
DVD VIDEO PLAYER
MW20FM1
CAUTION
THIS DIGITAL VIDEO PLAYER EMPLOYS A LASER SYSTEM.
TO ENSURE PROPER USE OF THIS PRODUCT, PLEASE READ THIS SERVICE MANUAL CARE-
FULLY AND RETAIN FOR FUTURE REFERENCE. SHOULD THE UNIT REQUIRE MAINTENANCE,
CONTACT AN AUTHORIZED SERVICE LOCATION-SEE SERVICE PROCEDURE.
USE OF CONTROLS, ADJUSTMENTS OR THE PERFORMANCE OF PROCEDURES OTHER THAN
THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
TO PREVENT DIRECT EXPOSURE TO LASER BEAM, DO NOT TR Y TO OPEN THE ENCLOSURE.
VISIBLE LASER RADIA TION MAY BE PRESENT WHEN THE ENCLOSURE IS OPENED. DO NOT
ST ARE INTO BEAM.
Location of the required Marking
The rating sheet and the safety caution are on the rear of the unit.
CERTIFICATION: COMPLIES WITH FDA
RADIA TION PERFORMANCE STANDARDS,
21 CFR SUBCHAPTER J.
LINE 1 IN
OUT
VIDEO
VIDEO
L
(MONO)
AUDIO
R
UHF/
L
DIGITAL
VHF
AUDIO
AUDIO
COAXIAL
R
A1-1
SERVICING NOTICES ON CHECKING
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.
2. AVOID AN ELECTRIC SHOCK
There is a high voltage part inside. Avoid an
electric shock while the electric current is
flowing.
3. USE THE DESIGNATED PARTS
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.
5. TAKE CARE TO DEAL WITH THE
CATHODE-RAY TUBE
In the condition that an explosion-proof cathoderay 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.
6. AVOID AN X-RAY1. KEEP THE NOTICES
Safety is secured against an X-ray by considering about the cathode-ray tube and the high
voltage peripheral circuit, etc.
Therefore, when repairing the high voltage peripheral 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 cathoderay tube.
PERFORM A SAFETY CHECK AFTER
7.
SERVICING
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.
Unplug the plug from the AC outlet.
2.
Remove the antenna terminal on TV and turn
on the TV.
3.
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].
4.
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
HOW TO ORDER PARTS
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.
A1-2
IMPORTANT SAFEGUARDS
1.
READ INSTRUCTIONS
All the safety and operating instructions should be read before the unit is operated.
2.
RETAIN INSTRUCTIONS
The safety and operating instructions should be retained for future reference.
3.
HEED WARNINGS
All warnings on the unit and in the operating instructions should be adhered to.
4.
FOLLOW INSTRUCTIONS
All operating and use instructions should be followed.
5.
CLEANING
Unplug this unit from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning.
6.
ATTACHMENTS
Do not use attachments not recommended by the unit’s manufacturer as they may cause hazards.
7.
WATER AND MOISTURE
Do not use this unit near water. For example, near a bathtub, washbowl, kitchen sink, or laundry tub, in a wet basement, or near a
swimming pool.
8.
ACCESSORIES
Do not place this unit on an unstable cart, stand, tripod, bracket, or table. The unit may fall,
causing serious injury, and serious damage to the unit. Use only with a cart, stand, tripod,
bracket, or table recommended by the manufacturer.
8A.
An appliance and cart combination should be moved with care. Quick stops, excessive force,
and uneven surfaces may cause the appliance and cart combination to overturn.
9.
VENTILATION
Slots and openings in the cabinet and in the back or bottom are provided for ventilation, to ensure reliable operation of the unit, and
to protect it from overheating. These openings must not be blocked or covered. The openings should never be blocked by placing
the unit on a bed, sofa, rug, or other similar surface. This unit should never be placed near or over a radiator or heat source. This
unit should not be placed in a built-in installation such as a bookcase or rack unless proper ventilation is provided or the manufacturer’s instructions have been adhered to.
10.
POWER SOURCES
This unit should be operated only from the type of power source indicated on the rating plate. If you are not sure of the type of
power supply to your home, consult your appliance dealer or local power company. For units intended to operate from battery
power, or other sources, refer to the operating instructions.
11.
GROUNDING OR POLARIZATION
This unit is equipped with a polarized alternating-current line plug (a plug having one blade wider than the other). This plug will fit
into the power outlet only one way. This is a safety feature. If you are unable to insert the plug fully into the outlet, try reversing the
plug. If the plug should still fail to fit, contact your electrician to replace your obsolete outlet. Do not defeat the safety purpose of the
polarized plug. If your unit is equipped with a 3-wire grounding-type plug, a plug having a third (grounding) pin, this plug will only fit
into a grounding-type power outlet. This too, is a safety feature. If you are unable to insert the plug into the outlet, contact your
electrician to replace your obsolete outlet. Do not defeat the safety purpose of the grounding-type plug.
12.
POWER-CORD PROTECTION
Power-supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them,
paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the appliance.
13.
LIGHTNING
To protect your unit from a lightning storm, or when it is left unattended and unused for long periods of time, unplug it from the wall
outlet and disconnect the antenna or cable system. This will prevent damage to the unit due to lightning and power line surges.
14.
POWER LINES
An outside antenna system should not be located in the vicinity of overhead power lines or other electric light or power circuits, or
where it can fall into such power lines or circuits. When installing an outside antenna system, extreme care should be taken to keep
from touching such power lines or circuits, as contact with them might be fatal.
15.
OVERLOADING
Do not overload wall outlets and extension cords, as this can result in a risk of fire or electric shock.
16.
OBJECT AND LIQUID ENTRY
Do not push objects through any openings in this unit, as they may touch dangerous voltage points or short out parts that could
result in fire or electric shock. Never spill or spray any type of liquid into the unit.
17.
OUTDOOR ANTENNA GROUNDING
If an outside antenna or cable system is connected to the unit, be sure the antenna or cable system is grounded so as to provide
some protection against voltage surges and built-up static charges. Section 810 of the National Electrical Code, ANSI/NFPA 70,
provides information with respect to proper grounding of the mast and supporting structure, grounding of the lead-in wire to an
antenna discharge unit, size of grounding conductors, location of antenna discharge unit, connection to grounding electrodes, and
requirements for the grounding electrode.
18.
SERVICING
Do not attempt to service this unit yourself as opening or removing covers may expose you to dangerous voltage or other hazards.
Refer all servicing to qualified service personnel.
PORTABLE CART WARNING
(symbol provided by RETAC)
S3126A
A1-3
IMPORTANT SAFEGUARDS(CONTINUED)
DAMAGE REQUIRING SERVICE
19.
Unplug this unit from the wall outlet and refer servicing to qualified service personnel under the following conditions:
a.
When the power-supply cord or plug is damaged.
b.
If liquid has been spilled, or objects have fallen into the unit.
c.
If the unit has been exposed to rain or water.
d.
If the unit does not operate normally by following the operating instructions. Adjust only those controls that are covered by the
operating instructions, as an improper adjustment of other controls may result in damage and will often require extensive
work by a qualified technician to restore the unit to its normal operation.
e.
If the unit has been dropped or the cabinet has been damaged.
f.
When the unit exhibits a distinct change in performance, this indicates a need for service.
REPLACEMENT PARTS
20.
When replacement parts are required, be sure the service technician uses replacement parts specified by the manufacturer or
those that have the same characteristics as the original parts.
Unauthorized substitutions may result in fire, electric shock or other hazards.
SAFETY CHECK
21.
Upon completion of any service or repairs to this unit, ask the service technician to perform safety checks to determine that the unit
is in proper operating condition.
WALL OR CEILING MOUNTING
22.
The product should be mounted to a wall or ceiling only as recommended by the manufacturer.
HEAT
23.
The product should be situated away from heat sources such as radiators, heat registers, stoves, or other products (including
amplifiers) that produce heat.
DISC TRA Y
24.
Keep your fingers well clear of the disc tray as it is closing. It may cause serious personal injury.
CONNECTING
25.
When you connect the product to other equipment, turn off the power and unplug all of the equipment from the wall outlet. Failure
to do so may cause an electric shock and serious personal injury. Read the owner's manual of the other equipment carefully and
follow the instructions when making any connections.
SOUND VOLUME
26.
Reduce the volume to the minimum level before you turn on the product. Otherwise, sudden high volume sound may cause hearing
or speaker damage.
SOUND DISTORTION
27.
Do not allow the product output distorted sound for a longtime. It may cause speaker overheating and fire.
HEADPHONES
28.
When you use the headphones, keep the volume at a moderate level. If you use the headphones continuously with high volume
sound, it may cause hearing damage.
LEASER BEAM
29.
Do not look into the opening of the disc tray or ventilation opening of the product to see the source of the laser beam. It may cause
sight damage.
DISC
30.
Do not use a cracked, deformed, or repaired disc. These discs are easily broken and may cause serious personal injury and
product malfunction.
NOTE TO CATV SYSTEM INSTALLER
31.
This reminder is provided to call the CATV system installer’s attention to Article 820-40 of the NEC that provides guidelines for
proper grounding and, in particular, specifies that the cable ground shall be connected to the grounding system of the building, as
close to the point of cable entry as practical.
EXAMPLE OF ANTENNA GROUNDING AS PER THE NATIONAL ELECTRICAL CODE
GROUND CLAMP
ELECTRIC SERVICE
EQUIPMENT
NEC-NATIONAL ELECTRICAL CODE
S2898A
ANTENNA LEAD IN WIRE
ANTENNA DISCHARGE UNIT
(NEC SECTION 810-20)
GROUNDING CONDUCTORS
(NEC SECTION 810-21)
GROUND CLAMPS
POWER SERVICE GROUNDING ELECTRODE SYSTEM
(NEC ART 250, PART H)
A1-4
TAPE REMOVAL METHOD AT NO POWER SUPPLY
1.
Remove the DVD/VCR block from the main unit and the Fig. 1 below can be seen.
(Refer to item 1 of the DISASSEMBLY INSTRUCTIONS.)
2.
Remove one screw of the Loading Motor from the insert hole for screw driver and remove the Loading
Motor.
3.
Rotate the Pinch Roller Cam in the direction of the arrow by hand to slacken the Video Tape.
(Refer to Fig. 2)
4.
Rotate the Clutch Ass'y either of the directions to wind the Video Tape in the Cassette Case.
5.
Repeat the above step 3~4. Then take out the Video Cassette from the Deck Chassis. Be careful not to
scratch on the tape.
Loading Motor
Screw
Capstan DD Unit
Pinch Roller Cam
Insert hole for screw driver
Fig. 1
Main Cam
Clutch Ass'y
Main Chassis (Front Side)
Fig. 2
DISC REMOVAL METHOD AT NO POWER SUPPLY
1.2.Remove the Top Cabinet and Front Cabinet. (Refer to item 1 of the DISASSEMBLY INSTRUCTIONS.)
Rotate the black gear of Deck CD section in the direction of the arrow by hand, remove the disc from
Deck CD. (Refer to Fig. 3)
Gear (Black)
Deck CD
Fig. 3
PARENTAL CONTROL - RATING LEVEL
4 DIGIT PASSWORD CANCELLATION
If the stored 4 digit password in the Rating Level menu needs to be cancelled, please follow the steps below.
Turn Unit ON.
1.
Confirm that no disc on the disc tray.
2.
Press and hold the '7' key on the remote control unit.
3.
Simultaneously press and hold the 'STOP' key on the front panel.
4.
Hold both keys for more than 3 seconds.
5.
The On Screen Display message 'INITIALIZED' will appear.
6.
The 4 digit password has now been cleared.
7.
NB: The above procedure will reset ALL of the player's settings to the default factory state.
Play/Stop/FF/Rew/Rec/OTR/T-Rec/Pause/Eject/Tape In (Symbol Mark)
Auto Tracking/Manual TrackingYes
Caption / TextYes
Index
MutingYes
Hi-FiYes
RepeatYes
Zero Return
DEW
Channel SetupYes
TV/CATVYes
Auto CH MemoryYes
Add/ DeleteYes
Guide CH Set
Auto TrackingYes
HQ (VHS Standard High Quality)Yes
Auto Power On, Auto Play, Auto Rewind, Auto EjectYes
VIDEO PLUS+(SHOWVIEW,G-CODE)
Auto ClockYes
Forward / Reverse Picture SearchYes
Reverse Slow
One Touch Playback
Auto CH MemoryYes
Closed CaptionYes
TV Auto Shut off FunctionYes
End Call
Index Search
SQPB
CATVYes
CM Skip(30sec x 6 Times)Yes
Comb FilterYes
TV Monitor
Program Extend
Choke Coil
Energy StarYes
Protect of FBT Leak CircuitYes
Zero ReturnYes
Power On Memory
Dirty Head
V-chipUSA V-chipYes
CM Advance
Movie Advance
Surround (Spatializer)
Parental Lock (DVD Only)Yes
VIDEO CD PlaybackYes
MP3 Playback
Digital Out Dolby DigitalYes
Down Mix Out (Dolby Digtal, MPEG1,MPEG2)Yes
Spatializer (N-2-2)
Screen SaverYes
Remote Control UnitYes
BatteryYes
Rod Antenna
Loop Antenna
U/V Mixer
300 ohm to 75 ohm Antenna AdapterYes
Antenna Change Plug
DC Car Cord (Center+)
AC Plug Adapter
AC Cord
AV Cord (2Pin-1Pin)
Guarantee Card
Registration CardYes
ESP Card
Warning Sheet
Dew/AHC Caution Sheet
Quick Set-up Sheet
Circuit Diagram
Service Facility List
Important Safeguard
CANADA V-chip
PCMYes
DTSYes
MPEG1, MPEG2Yes
w/Guarantee CardYes
UM size x pcsUM-4 x 2 pcs
Poles-
Terminal-
Terminal-
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
A3-6
GENERAL SPECIFICATIONS
G-17InterfaceSwitchFrontPower (Tact)Yes
IndicatorPowerRed
TerminalsFrontVideo InputRCA x 1
RearVideo InputRCA x 1
G-18Set SizeApprox. W x D x H (mm)573 x 482 x 517
G-19WeightNet (Approx.)
G-20CartonMaster Carton
Gift BoxYes
Drop TestNatural Dropping At
Container Stuffing(40' container)216
G-21Cabinet MaterialCabinet FrontPS 94V0 DECABROM
Channel UpYes
Channel DownYes
Volume UpYes
Volume DownYes
Play (VCR)Yes
Stop / Eject (VCR)Yes
F.FWD/Cue (VCR)Yes
Rew/Rev (VCR)Yes
REC/OTR (VCR)Yes
Play (DVD)Yes
Stop (DVD)Yes
Skip+ (DVD)Yes
Skip- (DVD)Yes
Open/Close (DVD)Yes
Input SelectNo
Main Power SWNo
REC/OTRRed
T-RECRed
TV/VCRNo
DVDNo
Audio InputRCA x 2(Stereo)
Other TerminalHead Phone (Stereo & Mono, 3.5mm)
Audio InputRCA x 2(Stereo)
Video OutputRCA x1
Audio OutputRCA x 2(Stereo)
Digital Audio OutputCoaxial (DVD Only)
VHF/UHF Antenna InputF Type
AC InletNo
Gross (Approx.)
Content-
Material-
Dimensions W x D x H(mm)-
Description of Origin-
MaterialDouble/White
Dimensions W x D x H(mm)658 x 575 x 625
DesignAs per Buyer's
Description of OriginYes
Height (cm)31
Cabinet RearPS 94V0 DECABROM
27.0kg(59.5lbs)
30.5kg(67.3lbs)
No
1 Corner / 3 Edges / 6 Surfaces
Sets
A3-7
DISASSEMBLY INSTRUCTIONS
1. REMOVAL OF MECHANICAL PARTS
AND P.C. BOARDS
1-1: BACK CABINET (Refer to Fig. 1-1)
1.
Remove the 6 screws 1.
2.
Remove the AC cord from the AC cord hook 2.
3.
Remove the Back Cabinet in the direction of arrow.
Front Cabinet
1
1
1
1
1
2
1
1-2: CRT PCB (Refer to Fig. 1-2)
CAUTION: BEFORE REMOVING THE ANODE CAP,
DISCHARGE ELECTRICITY BECAUSE IT
CONTAINS HIGH VOLTAGE.
BEFORE ATTEMPTING TO REMOVE OR
REPAIR ANY PCB, UNPLUG THE POWER
CORD FROM THE AC SOURCE.
1.
Remove the Anode Cap.
(Refer to REMOVAL OF ANODE CAP)
2.
Disconnect the following connectors:
(CP803 and CP805).
3.
Remove the CRT PCB in the direction of arrow.
Back Cabinet
Fig. 1-1
1-3: TV/DVD/VCR BLOCK (Refer to Fig. 1-3)
1.
Remove the 2 screws 1.
2.
Disconnect the following connectors:
(CP303, CP404 and CP1704).
3.
Remove the TV/DVD/VCR Block in the direction of
arrow.
1
Front Cabinet
TV/DVD/VCR Block
1-4: MAIN PCB (Refer to Fig. 1-4)
1.
Remove the 2 screws 1.
2.
Remove the 4 screws 2.
3.
Disconnect the following connectors:
(CD602 and CD603).
4.
Remove the Main PCB in the direction of arrow.
1
Main PCB
2
2
1
Fig. 1-3
1
2
2
Front Cabinet
CRT PCB
DVD/VCR Block
Fig. 1-4
Fig. 1-2
B1-1
DISASSEMBLY INSTRUCTIONS
1-5: TOP SHIELD ASS'Y (Refer to Fig. 1-5)
1.2.Remove the 9 screws 1.
Remove the Top Shield Ass'y in the direction of arrow.
1
Top Shield Ass'y
1
1
1
1
1
DVD/VCR Block
1
1
1
Fig. 1-5
1-6:
OPERATION PCB/DVD PCB/CD DECK
(Refer to Fig. 1-6)
1.
Make the short circuit on the position as shown Fig. 1-6
using a soldering. If you remove the Deck CD with no
soldering, the Laser may be damaged.
2.
Disconnect the following connectors:
(CP2201, CP3605, CP8001 and CP8002).
3.
Remove the 4 screws 1.
4.
Remove the Angle Deck in the direction of arrow (A).
5.
Remove the 2 screws 2.
6.
Remove the Front Shield in the direction of arrow (B).
7.
Remove the 2 screws 3.
8.
Remove the Operation PCB in the direction of arrow
(C).
9.
Disconnect the following connectors:
(CP2601, CP2602 and CP2603).
10.
Remove the 4 screws 4.
11.
Remove the CD Deck in the direction of arrow (D).
12.
Remove the 4 screws 5.
13.
Remove the DVD PCB in the direction of arrow (E).
NOTE
When the installation of the Deck CD, remove all the
soldering on the short circuit position after the connection of
Pick Up PCB and DVD PCB connector.
4
4
Operation PCB
Front Shield
CD Deck
3
(C)
2
1
(B)
1
(E)
5
5
3
2
(D)
5
(A)
4
4
Angle Deck
1
1
5
Make the short circuit
using a soldering.
DVD PCB
1-7: POWER PCB (Refer to Fig. 1-7)
1.
Disconnect the following connector:
(CP3603).
2.
Remove the 3 screws 1.
3.
Remove the Power PCB in the direction of arrow.
1
1
1
Bottom Plate Ass'y
Pick Up PCB
Fig. 1-6
Power PCB
Fig. 1-7
B1-2
DISASSEMBLY INSTRUCTIONS
1-8: VCR DECK (Refer to Fig. 1-8)
1.
Move the Cassette Holder Ass'y to the back side.
2.
Remove the 3 screws 1.
3.
Remove the screw 2.
4.
Disconnect the following connectors:
(CP101, CP4501, CP4502 and CP4503).
5.
Remove the AC Head Cover and VCR Deck in the
direction of arrow.
1
1
VCR Deck
2
1
AC Head Cover
1-9: VCR PCB (Refer to Fig. 1-9)
1.
Remove the 5 screws 1.
2.
Remove the Nut and Washer.
3.
Remove the VCR PCB in the direction of arrow.
1
1
Nut
Washer
VCR PCB
Bottom Plate Ass'y
1
1
1
Bottom Plate Ass'y
Fig. 1-8
Fig. 1-9
B1-3
DISASSEMBLY INSTRUCTIONS
2. REMOVAL OF VCR DECK PARTS
2-1: TOP BRACKET (Refer to Fig. 2-1)
Extend the 2 supports 1.
1.
Slide the 2 supports 2 and remove the Top Bracket.
2.
NOTE
1. After the installation of the Top Bracket, bend the
support 1 so that the Top Bracket is fixed.
Top Bracket
1
Top Bracket
2
Main Chassis
2
Main Chassis
2-2: CASSETTE HOLDER ASS'Y (Refer to Fig. 2-2)
Move the Cassette Holder Ass'y to the front side.
1.
Push the Locker R to remove the Cassette Side R.
2.
Remove the Cassette Side L.
3.
Main Chassis
Cassette Side R
1
Fig. 2-1
Locker R
NOTE
1.2.In case of the Locker R installation, check if the two
positions of Fig.2-3-B are correctly locked.
When you install the Cassette Side R, be sure to move
the Locker R after installing.
Locker R
Check if these
Cassette Side R
positions are locked.
Fig. 2-3-B
2-4: LINK UNIT (Refer to Fig. 2-4)
Set the Link Unit to the Eject position.
1.
Unlock the support 1.
2.
Remove the (A) side of the Link Unit first, then remove
3.
the (B) side.
Main Chassis
Link Unit
Link Unit
Cassette Side L
Main Chassis
Fig. 2-2
2-3: CASSETTE SIDE L/R (Refer to Fig. 2-3-A)
Remove the Locker Spring.
1.
Unlock the 4 supports 1 and then remove the Cassette
2.
Side L/R.
Unlock the support 2 and then remove the Locker R.
3.
Locker Spring
1
1
2
Cassette Holder
Locker R
1
1
(A)
1
(B)
Link Unit
Main Chassis
2-5: LINK LEVER/FLAP LEVER (Refer to Fig. 2-5)
Extend the support 1.
1.
Remove the Link Lever.
2.
Remove the Flap Lever.
3.
1
Flap Lever
Link Lever
Fig. 2-4
Fig. 2-5
Cassette Side R
Cassette Side L
Fig. 2-3-A
B2-1
DISASSEMBLY INSTRUCTIONS
2-6: LOADING MOTOR/WORM (Refer to Fig. 2-6-A)
Remove the screw 1.
1.
Remove the Loading Motor.
2.
Remove the Worm.
3.
Loading Motor
Worm
Main Chassis
• Screw Torque: 3 ± 0.5kgf•cm
1
Fig. 2-6-A
NOTE
1.
In case of the Worm installation, check if the value of
the Fig. 2-6-B is correct.
2.
In case of the Loading Motor installation, hook the wire
on the Cassette Opener as shown Fig. 2-6-C.
3.
When installing the wires between Capstan DD Unit
and Loading Motor, connect them correctly as shown
Fig. 2-6-D.
2-7: TENSION ASS'Y (Refer to Fig. 2-7-B)
Turn the Pinch Roller Cam clockwise so that the
1.
Tension Holder hook is set to the position of Fig. 2-7-A
to move the Tension Arm Ass'y.
Remove the Tension Spring.
2.
Unlock the 2 supports 1 and remove the Tension
3.
Band.
Unlock the support 2 and remove the Tension Arm
4.
Ass'y.
Unlock the support 3 and remove the Tension
5.
Connect.
Float the hook 4 and turn it clockwise then remove the
6.
Tension Holder.
Tension Arm Ass'y
Fig. 2-7-A
1
Tension Connect
Tension Spring
2
4
1
3
Tension Holder
Tension Band
Tension Arm Ass'y
19.2 ± 0.1mm
Safety surface for pressing
of the insert.
Loading Motor
Cassette Opener
Fig. 2-6-B
Fig. 2-6-C
Loading MotorCapstan DD Unit
-
Pink
L2
Fig. 2-7-B
NOTE
1.
In case of the Tension Band installation, note the
direction of the installation. (Refer to Fig. 2-7-C)
2.
In case of the Tension Band installation, install correctly
as Fig. 2-7-D.
3.
In case of the Tension Connect installation, install as
the circled section of Fig. 2-7-E.
Tension Connect
Tension Band
Fig. 2-7-C
[OK]
[NG]
Tension Connect
Tension Connect
Tension Band
Tension Band
Fig. 2-7-D
+
White
L1
Fig. 2-6-D
Tension Connect
Main Chassis
Fig. 2-7-E
B2-2
DISASSEMBLY INSTRUCTIONS
2-8: T BRAKE ARM/T BRAKE BAND (Refer to Fig. 2-8-A)
Remove the T Brake Spring.
1.
Turn the T Brake Arm clockwise and bend the hook
2.
section to remove it.
Unlock the 2 supports 1 and remove the T Brake
3.
Band.
Idler Gear
S Reel
Idler Arm Ass'y
(B)
T Brake Band
Hook section
1
1
T Brake Arm
T Brake Spring
Fig. 2-8-A
NOTE
1. In case of the T Brake Band installation, install correctly
as Fig. 2-8-B.
[OK]
T Brake Band
[NG]
T Brake Band
T Brake Arm
T Brake Arm
(A)T Reel
1
(A)
1
Fig. 2-9-A
NOTE
1.2.In case of the S Reel and T Reel installation, check if the
correct parts are installed. (Refer to Fig. 2-9-B)
In case of the Idler Arm Ass'y installation, install correctly
as Fig. 2-9-C. And also set it so that the section "B" of
Fig. 2-9-A is placed under the Main Chassis tab.
Fig. 2-8-B
2-9: S REEL/T REEL/IDLER ARM ASS'Y/IDLER GEAR
(Refer to Fig. 2-9-A)
Remove the S Reel and T Reel.
1.
Remove the 2 Polyslider Washers 1.
2.
Remove the Idler Arm Ass'y and Idler Gear.
3.
NOTE
Take care not to damage the gears of the S Reel and T
1.
Reel.
The Polyslider Washer may be remained on the back of
2.
the reel.
Take care not to damage the shaft.
3.
Do not touch the section "A" of S Reel and T Reel. (Use
4.
gloves.) (Refer to Fig. 2-9-A) Do not adhere the stains
on it.
When you install the reel, clean the shaft and grease it.
5.
(If you do not grease, noise may be heard in FF/REW
mode.)
After installing the reel, adjust the height of the reel.
6.
(Refer to MECHANICAL ADJUSTMENT)
[OK]
[NG]
Clutch Gear
Clutch Gear
Big Hole
(S Reel)
Small Hole
(T Reel)
Fig. 2-9-B
Idler Arm Ass'y
Idler Arm Ass'y
Fig. 2-9-C
B2-3
DISASSEMBLY INSTRUCTIONS
2-10: CASSETTE OPENER/PINCH ROLLER BLOCK/
P5 ARM ASS'Y (Refer to Fig. 2-10-A)
Unlock the support 1 and remove the Cassette
1.
Opener.
Remove the Pinch Roller Block and P5 Arm Ass'y.
2.
1
Cassette Opener
Pinch Roller Block
P5 Arm Ass'y
Main Chassis
Fig. 2-10-A
NOTE
Do not touch the Pinch Roller. (Use gloves.)
1.
In case of the Pinch Roller Block and the Pinch Roller
2.
Cam installation, install correctly as Fig. 2-10-B.
Pinch Roller Block
P5 Arm Ass'y
Can be seen the hole of the
Main Cam.
Can be seen the hole of
the Pinch Roller Cam.
Fig. 2-10-B
2-11: A/C HEAD (Refer to Fig. 2-11-A)
Remove the screw 1.
1.
Remove the A/C Head Base.
2.
Remove the 3 screws 2.
3.
Remove the A/C Head and A/C Head Spring.
4.
NOTE
1.
Do not touch the A/C Head. (Use gloves.)
2.
When you install the A/C Head Spring, install as shown in
Fig. 2-11-B.
3.
When you install the A/C Head, tighten the screw (1) first,
then tighten the screw (2), finally tighten the screw (3).
(3)
(1)
2
2
(2)
1
2
A/C Head
A/C Head Spring
Spring Position
Fig. 2-11-B
2-12: FE HEAD (RECORDER ONLY) (Refer to Fig. 2-12)
Remove the screw 1.
1.
Remove the FE Head.
2.
1
FE Head
• Screw Torque: 5 ± 0.5kgf•cm
• The FE Head is not installed on the Video Cassette Player.
Fig. 2-12
2-13: AHC ASS'Y/CYLINDER UNIT ASS'Y
(Refer to Fig. 2-13)
Unlock the support 1 and remove the AHC Ass'y.
1.
Disconnect the following connector:
2.
(CD2001)
Remove the 3 screws 2.
3.
Remove the Cylinder Unit Ass'y.
4.
NOTE
When you install the Cylinder Unit Ass'y, tighten the
1.
screws from (1) to (3) in order while pulling the Ass'y
toward the left front direction.
Cylinder Unit Ass'y
AHC Ass'y
1
(3)
(2)
(1)
• Screw Torque: 3 ± 0.5kgf•cm
2
2
2
Fig. 2-13
• Screw Torque: 5 ± 0.5kgf•cm (Screw 1)
A/C Head Base
Fig. 2-11-A
B2-4
DISASSEMBLY INSTRUCTIONS
2-14: CAPSTAN DD UNIT (Refer to Fig. 2-14-A)
Remove the Capstan Belt.
1.
Remove the 3 screws 1.
2.
Remove the Capstan DD Unit.
3.
2-15:
MAIN CAM/PINCH ROLLER CAM/JOINT GEAR
(Refer to Fig. 2-15-A)
Remove the E-Ring 1, then remove the Main Cam.
1.
Remove the E-Ring 2, then remove the Pinch Roller
2.
Cam and Joint Gear.
1
Capstan Belt
Capstan DD Unit
1
1
• Screw Torque: 4 ± 0.5kgf•cm
1
Fig. 2-14-A
NOTE
In case of the Capstan DD Unit installation, apply the
1.
silicon bond (TSE3843-W) on the position Fig. 2-14-B
correctly. (If no silicon bond applied, abnormal noise will
be heard on the deck operation.)
(Refer to Fig. 2-14-B, C)
Applied position of
silicon bond
Main Cam
2
Pinch Roller Cam
Joint Gear
Fig. 2-15-A
NOTE
In case of the Pinch Roller Cam and Main Cam
1.
installation, install them as the circled section of Fig. 215-B so that the each markers are met. (Refer to Fig.
2-15-B)
Pinch Roller Cam
Marker
Capstan DD Unit
Be careful not to apply the silicon
bond to the Pinch Roller.
Fig. 2-14-B
Silicon Bond
Main Chassis
Fig. 2-14-C
Main Cam
Fig. 2-15-B
2-16: LOADING GEAR S/T UNIT (Refer to Fig. 2-16-A)
1.2.Remove the E-Ring 1 and remove the Main Loading
Gear.
Remove the Main Rod, Tension Lever, Loading Arm S
Unit and Loading Arm T Unit.
1
Main Rod
Tension Lever
Main Loading Gear
Loading Arm T Unit
Loading Arm S Unit
B2-5
Fig. 2-16-A
DISASSEMBLY INSTRUCTIONS
NOTE
When you install the Loading Arm S Unit, Loading Arm
1.
T Unit and Main Loading Gear, align each marker.
(Refer to Fig. 2-16-B)
Marker
Main Loading Gear
Marker
CASSETTE GUIDE POST/INCLINED BASE S/T
2-18:
UNIT/P4 CAP (Refer to Fig. 2-18-A)
Remove the P4 Cap.
1.
Unlock the support 1 and remove the Cassette Guide
2.
Post.
Remove the Inclined Base S Unit and Inclined Base T
3.
Unit.
1
Cassette Guide Post
Loading Arm T Unit
2-17:
CLUTCH ASS'Y/RING SPRING/CLUTCH LEVER/
Loading Arm S Unit
CLUTCH GEAR (Refer to Fig. 2-17-A)
Remove the Polyslider Washer 1.
1.
Remove the Clutch Ass'y and Ring Spring.
2.
Remove the Clutch Lever.
3.
Remove the Coupling Gear, Coupling Spring and
4.
Clutch Gear.
1
Clutch Ass'y
Ring Spring
Coupling Gear
Coupling Spring
Clutch Lever
Fig. 2-16-B
Inclined Base S
Unit
Inclined Base T
Unit
P4 Cap
Fig. 2-18-A
NOTE
Do not touch the roller of Guide Roller.
1.
In case of the P4 Cap installation, install it with parallel
2.
for "A" and "B" of Fig. 2-18-B.
In case of the Cassette Guide Post installation, install
3.
correctly as the circled section of Fig. 2-18-C.
"A"
"B"
Clutch Gear
Fig. 2-17-A
NOTE
In case of the Clutch Ass'y installation, install it with
1.
inserting the spring of the Clutch Ass'y into the dent of
the Coupling Gear. (Refer to Fig. 2-17-B)
Clutch Ass'y
Coupling Gear
Fig. 2-17-B
B2-6
P4 Cap
[OK]
Cassette Guide Post
[NG]
Cassette Guide Post
Cassette Opener
Fig. 2-18-B
Fig. 2-18-C
DISASSEMBLY INSTRUCTIONS
3. REMOVAL OF ANODE CAP
Read the following NOTED items before starting work.
After turning the power off there might still be a potential
*
voltage that is very dangerous. When removing the
Anode Cap, make sure to discharge the Anode Cap's
potential voltage.
*
Do not use pliers to loosen or tighten the Anode Cap
terminal, this may cause the spring to be damaged.
REMOVAL
1. Follow the steps as follows to discharge the Anode Cap.
(Refer to Fig. 3-1.)
Connect one end of an Alligator Clip to the metal part of a
flat-blade screwdriver and the other end to ground.
While holding the plastic part of the insulated Screwdriver,
touch the support of the Anode with the tip of the
Screwdriver.
A cracking noise will be heard as the voltage is discharged.
GND on the CRT
3. After one side is removed, pull in the opposite direction
to remove the other.
NOTE
Take care not to damage the Rubber Cap.
INSTALLATION
1. Clean the spot where the cap was located with a small
amount of alcohol. (Refer to Fig. 3-3.)
NOTE
Confirm that there is no dirt, dust, etc. at the spot where
the cap was located.
Location of Anode Cap
Fig. 3-3
Screwdriver
Alligator Clip
GND on the CRT
Flip up the sides of the Rubber Cap in the direction of
2.
the arrow and remove one side of the support.
(Refer to Fig. 3-2.)
Rubber Cap
Support
CRT
Fig. 3-1
2.3.Arrange the wire of the Anode Cap and make sure the
wire is not twisted.
Turn over the Rubber Cap. (Refer to Fig. 3-4.)
Fig. 3-4
4. Insert one end of the Anode Support into the anode
button, then the other as shown in Fig. 3-5.
CRT
Support
Fig. 3-2
Support
CRT
5.6.Confirm that the Support is securely connected.
Put on the Rubber Cap without moving any parts.
B3-1
Fig. 3-5
DISASSEMBLY INSTRUCTIONS
4.
REMOVAL AND INSTALLATION OF
FLAT PACKAGE IC
REMOVAL
Put the Masking Tape (cotton tape) around the Flat
1.
Package IC to protect other parts from any damage.
(Refer to Fig. 4-1.)
NOTE
Masking is carried out on all the parts located within
10 mm distance from IC leads.
When IC starts moving back and forth easily after
3.
desoldering completely, pickup the corner of the IC using
a tweezers and remove the IC by moving with the IC
desoldering machine. (Refer to Fig. 4-3.)
NOTE
Some ICs on the PCB are affixed with glue, so be
careful not to break or damage the foil of each IC
leads or solder lands under the IC when removing it.
Blower type IC
desoldering
machine
Masking Tape
(Cotton Tape)
Heat the IC leads using a blower type IC desoldering
2.
IC
machine. (Refer to Fig. 4-2.)
NOTE
Do not add the rotating and the back and forth
directions force on the IC, until IC can move back and
forth easily after desoldering the IC leads completely.
Blower type IC
desoldering machine
Fig. 4-1
Tweezers
IC
Peel off the Masking Tape.4.
Absorb the solder left on the pattern using the Braided
5.
Shield Wire. (Refer to Fig. 4-4.)
NOTE
Do not move the Braided Shield Wire in the vertical
direction towards the IC pattern.
Fig. 4-3
Braided Shield Wire
Soldering Iron
IC
Fig. 4-2
IC pattern
Fig. 4-4
B4-1
DISASSEMBLY INSTRUCTIONS
INSTALLATION
Take care of the polarity of new IC and then install the
1.
new IC fitting on the printed circuit pattern. Then solder
each lead on the diagonal positions of IC temporarily.
(Refer to Fig. 4-5.)
Soldering Iron
Solder temporarily
Supply the solder from the upper position of IC leads
2.
Solder temporarily
sliding to the lower position of the IC leads.
(Refer to Fig. 4-6.)
Fig. 4-5
When bridge-soldering between terminals and/or the
4.
soldering amount are not enough, resolder using a Thintip Soldering Iron. (Refer to Fig. 4-8.)
Thin-tip Soldering Iron
IC
Fig. 4-8
Finally, confirm the soldering status on four sides of the
5.
IC using a magnifying glass.
Confirm that no abnormality is found on the soldering
position and installation position of the parts around the
IC. If some abnormality is found, correct by resoldering.
NOTE
When the IC leads are bent during soldering and/or
repairing, do not repair the bending of leads. If the
bending of leads are repaired, the pattern may be
damaged. So, be always sure to replace the IC in this
case.
Soldering IronSolder
IC
Absorb the solder left on the lead using the Braided
3.
Supply soldering
from upper position
to lower position
Shield Wire. (Refer to Fig. 4-7.)
NOTE
Do not absorb the solder to excess.
Soldering Iron
IC
Braided Shield Wire
Fig. 4-6
Fig. 4-7
B4-2
A
A/C
ACC
AE
AFC
AFT
AFT DET
AGC
AMP
ANT
A.PB
APC
ASS'Y
AT
AUTO
A/V
B
BGP
BOT
BPF
BRAKE SOL
BUFF
B/W
C
C
CASE
CAP
CARR
CH
CLK
CLOCK (SY-SE)
COMB
CONV
CPM
CTL
CYL
CYL-M
CYL SENS
D
DATA (SY-CE)
dB
DC
DD Unit
DEMOD
DET
DEV
E
E
EF
EMPH
ENC
ENV
EOT
EQ
EXT
F
F
FBC
FE
FF
FG
FL SW
FM
FSC
FWD
G
GEN
GND
H
H.P.F
KEY TO ABBREVIATIONS
:
Audio/Control
:
Automatic Color Control
:
Audio Erase
:
Automatic Frequency Control
:
Automatic Fine Tuning
:
Automatic Fine Tuning Detect
:
Automatic Gain Control
:
Amplifier
:
Antenna
:
Audio Playback
:
Automatic Phase Control
:
Assembly
:
All Time
:
Automatic
:
Audio/Video
:
Burst Gate Pulse
:
Beginning of Tape
:
Bandpass Filter
:
Brake Solenoid
:
Buffer
:
Black and White
:
Capacitance, Collector
:
Cassette
:
Capstan
:
Carrier
:
Channel
:
Clock
:
Clock (Syscon to Servo)
:
Combination, Comb Filter
:
Converter
:
Capstan Motor
:
Control
:
Cylinder
:
Cylinder-Motor
:
Cylinder-Sensor
:
Data (Syscon to Servo)
:
Decibel
:
Direct Current
:
Direct Drive Motor Unit
:
Demodulator
:
Detector
:
Deviation
:
Emitter
:
Emitter Follower
:
Emphasis
:
Encoder
:
Envelope
:
End of Tape
:
Equalizer
:
External
:
Fuse
:
Feed Back Clamp
:
Full Erase
:
Fast Forward, Flip-flop
:
Frequency Generator
:
Front Loading Switch
:
Frequency Modulation
:
Frequency Sub Carrier
:
Forward
:
Generator
:
Ground
:
High Pass Filter
H.SW
Hz
I
IC
IF
IND
INV
K
KIL
L
L
LED
LIMIT AMP
LM, LDM
LP
L.P.F
LUMI.
M
M
MAX
MINI
MIX
MM
MOD
MPX
MS SW
N
NC
NR
O
OSC
OPE
P
PB
PB CTL
PB-C
PB-Y
PCB
P. CON
PD
PG
P-P
R
R
REC
REC-C
REC-Y
REEL BRK
REEL S
REF
REG
REW
REV, RVS
RF
RMC
RY
S
S. CLK
S. COM
S. DATA
SEG
SEL
SENS
SER
SI
SIF
SO
SOL
SP
STB
SW
:
Head Switch
:
Hertz
:
Integrated Circuit
:
Intermediate Frequency
:
Indicator
:
Inverter
:
Killer
:
Left
:
Light Emitting Diode
:
Limiter Amplifier
:
Loading Motor
:
Long Play
:
Low Pass Filter
:
Luminance
:
Motor
:
Maximum
:
Minimum
:
Mixer, mixing
:
Monostable Multivibrator
:
Modulator, Modulation
:
Multiplexer, Multiplex
:
Mecha State Switch
:
Non Connection
:
Noise Reduction
:
Oscillator
:
Operation
:
Playback
:
Playback Control
:
Playback-Chrominance
:
Playback-Luminance
:
Printed Circuit Board
:
Power Control
:
Phase Detector
:
Pulse Generator
:
Peak-to Peak
:
Right
:
Recording
:
Recording-Chrominance
:
Recording-Luminance
:
Reel Brake
:
Reel Sensor
:
Reference
:
Regulated, Regulator
:
Rewind
:
Reverse
:
Radio Frequency
:
Remote Control
:
Relay
:
Serial Clock
:
Sensor Common
:
Serial Data
:
Segment
:
Select, Selector
:
Sensor
:
Search Mode
:
Serial Input
:
Sound Intermediate Frequency
:
Serial Output
:
Solenoid
:
Standard Play
:
Serial Strobe
:
Switch
C1-1
S
SYNC
SYNC SEP
T
TR
TRAC
TRICK PB
TP
U
UNREG
V
V
VCO
VIF
VP
V.PB
VR
V.REC
VSF
VSR
VSS
V-SYNC
VT
X
X'TAL
Y
Y/C
KEY TO ABBREVIATIONS
:
Synchronization
:
Sync Separator, Separation
:
Transistor
:
Tracking
:
Trick Playback
:
Test Point
:
Unregulated
:
Volt
:
Voltage Controlled Oscillator
:
Video Intermediate Frequency
:
Vertical Pulse, Voltage Display
:
Video Playback
:
Variable Resistor
:
Video Recording
:
Visual Search Fast Forward
:
Visual Search Rewind
:
Voltage Super Source
:
Vertical-Synchronization
:
Voltage Tuning
:
Crystal
:
Luminance/Chrominance
C1-2
SERVICE MODE LIST
This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily.
To enter to the SERVICE MODE function, press and hold both buttons simultaneously on the main unit or on the main unit
and on the remote control for more than a standard time (second).
The both pressing of main unit key and remote control key will not be possible if clock has been set. To reset clock, either
unplug AC cord and allow at least 5 seconds before Power On.
Set Key
VOL. (-) MIN
VOL. (-) MIN1
VOL. (-) MIN2
VOL. (-) MIN
VOL. (-) MIN4
VOL. (-) MIN5
VOL. (-) MIN
Standard Time
(seconds)
0
3
6
2
2
2
2
2
2
2
Releasing of V-CHIP PASSWORD.
Initialization of the factory on TV/VCR.
NOTE:
Horizontal position adjustment of OSD.
NOTE: Also can be adjusted by using the Adjustment MENU.
Refer to the "ELECTRICAL ADJUSTMENT" (OSD HORIZONTAL).
Adjust the PG SHIFTER automatically.
Refer to the "ELECTRICAL ADJUSTMENT" (PG SHIFTER).
Adjust the PG SHIFTER manually.
Refer to the "ELECTRICAL ADJUSTMENT" (PG SHIFTER).
Adjusting of the Tracking to the center position.
Refer to the "MECHANICAL ADJUSTMENT" (GUIDE ROLLER) and
"ELECTRICAL ADJUSTMENT" (PG SHIFTER).
POWER ON total hours and PLAY/REC total hours are displayed on
the screen.
Refer to the "PREVENTIVE CHECKS AND SERVICE INTERVALS"
(CONFIRMATION OF HOURS USED).
Do not use this for the normal servicing.
If you set a factory initialization, the memories are reset such as
the clock setting, the channel setting, the POWER ON total
hours, and PLAY/REC total hours.
OperationsRemocon Key
VOL. (-) MIN9
REC/OTR42
STOP73
MethodOperations
Make the short circuit
between the test point of
SERVICE and the GND.
The BOT, EOT, and the Reel Sensor do not work and the VCR deck can be operated
without a cassette tape.
Refer to the “PREPARATION FOR SERVICING”
Can be checked of the INITIAL DATA of MEMORY IC.
Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".
Display of the Adjustment MENU on the screen.
2
Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display
Adjustment).
Initialization of the factory on DVD.
NOTE:
Releasing of PARENTAL LOCK.
Refer to the “PARENTAL CONTROL - RATING LEVEL”.
NOTE:
Do not use this for the normal servicing.
The function will only work without the setting of DVD disc at
DVD mode.
While pressing the Remocon Key for more than the Standard
Time, press the Set Key simultaneously.
The function will only work without the setting of DVD disc at
DVD mode.
C2-1
PREVENTIVE CHECKS AND SER VICE INTERVALS
The following standard table depends on environmental conditions and usage.
Parts replacing time does not mean the life span for individual parts.
Also, long term storage or misuse may cause transformation and aging of rubber parts.
The following list means standard hours, so the checking hours depends on the conditions.
Time
Parts Name
Audio Control Head
Full Erase Head
(Recorder only)
Capstan Belt
Pinch Roller
Capstan DD Unit
Loading Motor
Tension Band
T Brake Band
Clutch Ass’y
Idler Arm Ass’y
Capstan Shaft
Tape Running
Guide Post
Cylinder Unit
: Clean
: Check it and if necessary, replace it.
500
hours
1,000
hours
1,500
hours
2,000
hours
2,500
hours
Notes
Clean those parts in
contact with the tape.
Clean the rubber, and parts
which the rubber touches.
Replace when rolling
becomes abnormal.
Clean the Head
CONFIRMATION OF HOURS USED
POWER ON total hours and PLAY/REC total hours can be checked on the screen.
Total hours are displayed in 16 system of notation.
NOTE: If you set a factory initialization, the total hours is reset to "0".
The confirmation of using hours will not be possible if clock has been set. To reset clock, either unplug
AC cord and allow at least 5 seconds before Power On.
1.
Set the VOLUME to minimum.
2.
Press both VOL. DOWN button on the set and the Channel button (6) on the remote control for more than 2 seconds.
3.
After the confirmation of using hours, turn off the power.
INIT 00 88
POWER ON 0000
PLAY/REC 0000
(16 x 16 x 16 x thousands digit value) + (16 x 16 x hundreds digit value) + (16 x tens digit value) + (ones digit value)
Initial setting content of MEMORY IC.
POWER ON total hours.
PLAY/REC total hours.
C3-1
PREVENTIVE CHECKS AND SER VICE INTERVALS
CLEANING
NOTE
After cleaning the heads with isopropyl alcohol, do not
run a tape until the heads dry completely. If the heads
are not completely dry and alcohol gets on the tape,
damage may occur.
1. AUDIO CONTROL HEAD
Clean the Audio Control Head with the cotton stick
soaked by alcohol. Clean the full erase head in the
same manner. (Refer to the figure below.)
2. TAPE RUNNING SYSTEM
When cleaning the tape transport system, use the
gauze moistened with isopropyl alcohol.
3. CYLINDER
Wrap a piece of chamois around your finger. Dip it in
isopropyl alcohol. Hold it to the cylinder head softly.
Turn the cylinder head counterclockwise to clean it (in
the direction of the arrow). (Refer to the figure below.)
NOTE
Do not exert force against the cylinder head. Do not move
the chamois upward or downward on the head.
Use the chamois one by one.
Audio Control Head
Cylinder Head
C3-2
WHEN REPLACING EEPROM (MEMORY) IC
If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to
ensure correct data settings while making reference to TABLE 1.
NOTE: Initial Data setting will not be possible if clock has been set. To reset clock, either unplug AC cord and allow
at least 5 seconds before Power On.
+0+1+2+3+4+5+6+7+8+9
8D4F70004905FF628645
0F
40E3520387004800FF
10
20
9F9791A5B0B001BA1A0B
30FFFFFFFFFFFF
00310914027F0EFFFFFF
4045
622607674809490A4A
6D6E4F6F5070517152
50
60
4E72
7556765777587859795A
5C5C7C7C5D5D7D7D5E5E70
+A
+B+C+D+E+FINI
908807A0002400
193A1E540AB8
3D0125061470
6A4B6B4C6C4D
5373547455
7A7A5B5B7B7B
7E7E5F5F7F7F
Table 1
Enter DATA SET mode by setting VOLUME to minimum.
1.
While holding down VOLUME button on front cabinet, press key 6 on remote control for more than 2 seconds.
2.
ADDRESS and DATA should appear as FIG 1.
ADDRESS DATA
INIT 00 8D
POWER ON 0010
PLAY/REC 0003
Fig. 1
3.
ADDRESS is now selected and should "blink". Using the UP or DOWN button on the remote, step through the ADDRESS
until required ADDRESS to be changed is reached.
4.
Press ENTER to select DATA. When DATA is selected, it will "blink".
5.
Again, step through the DATA using UP or DOWN button until required DATA value has been selected.
6.
Pressing ENTER will take you back to ADDRESS for further selection if necessary.
7.
Repeat steps 3 to 6 until all data has been checked.
8.
When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.
The unit will now have the correct DATA for the new MEMORY IC.
VSR Torque, Brake Torque (S Reel/T Reel Ass'y)
Brake Torque (T Reel Ass'y)
VSR Torque, Brake Torque (S Reel)
Remarks
PREPARATION FOR SERVICING
How to use the Servicing Fixture
1.
Remove the TV/VCR/DVD block from the set.
Be sure to place the parts on a paper so that they have no short-circuit each other.
2.
Short circuit between TP101 and Ground with the cable JG154.
(The BOT, EOT, and the Reel Sensor do not work and the VCR deck can be operated without a cassette tape.)
3.
In case of using a cassette tape, press the STOP/EJECT button to insert or eject a cassette tape.
Turn on the power and re-check the cable before checking the trouble points.
D1-1
MECHANICAL ADJUSTMENTS
1. CONFIRMATION AND ADJUSTMENT
Read the following NOTES before starting work.
• Place an object which weighs between 450g~500g on
the Cassette Tape to keep it steady when you want to
make the tape run without the Cassette Holder. (Do not
place an object which weighs over 500g.)
CONFIRMATION AND ADJUSTMENT OF REEL
1-1:
DISK HEIGHT
1.
Turn on the power and set to the STOP mode.
2.
Set the master plane (JG022) and reel disk height
adjustment jig (JG024A) on the mechanism framework,
taking care not to scratch the drum, as shown in Fig. 1-1-A.
3.
While turning the reel and confirm the following points.
Check if the surface "A" of reel disk is lower than the
surface "B" of reel disk height adjustment jig (JG024A)
and is higher than the surface "C". If it is not passed,
place the height adjustment washers and adjust to
10(+2, -0)mm.
4.
Adjust the other reel in the same way.
Master Plane (JG022)
Reel Disk Height Adjustment Jig
(JG024A)
1-2: CONFIRMATION AND ADJUSTMENT OF TENSION
POST POSITION
1.
Set to the PLAY mode.
2.
Adjust the adjusting section for the Tension Arm
position so that the Tension Arm top is within the
standard line of Main Chassis.
3.
While turning the S Reel clockwise, confirm that the
edge of the Tension Arm is located in the position
described above.
Standard line of Main Chassis
Tension Arm
0.5mm (Adjusting range)
Fig. 1-2-A
Adjusting section for the
Tension Arm position
Tension Band
Master Plane (JG022)
10(+0.2, -0)mm
Reel Disk
Height Adjustment
Washer
2.6x4.7xT0.13
2.6X4.7xT0.25
Reel Disk Height
Adjustment Jig
(JG024A)
(B)
(A)
Fig. 1-1-A
(C)
Fig. 1-1-B
The Tension Arm top will
move to the inside direction
of the Main Chassis.
Bend
The Tension Arm top will
move to the outside direction
of the Main Chassis.
Fig. 1-2-B
1-3: CONFIRMATION OF PLAYBACK TORQUE AND
BACK TENSION TORQUE DURING PLAYBACK
Load a video tape (T-120) recorded in standard speed
1.
mode. Set the unit to the PLAY mode.
Install the tentelometer as shown in Fig. 1-3. Confirm that
2.
the meter indicates 20 ± 2gf in the beginning of playback.
• USING A CASSETTE TYPE TORQUE TAPE (KT-300NR)
1.
After confirmation and adjustment of Tension Post
position (Refer to item 1-2), load the cassette type
torque tape (KT-300NR) and set to the PLAY mode.
2.
Confirm that the right meter of the torque tape indicates
50~90gf•cm during playback in SP mode.
3.
Confirm that the left meter of the torque tape indicates
25~40gf•cm during playback in SP mode.
Tentelometer
Video Tape
D2-1
P1 Post
Guide Roller
Fig. 1-3
MECHANICAL ADJUSTMENTS
1-4: CONFIRMATION OF VSR TORQUE
Install the Torque Gauge (JG002F) and Adapter (JG002B)
1.
on the S Reel. Set to the Picture Search (Rewind) mode.
(Refer to Fig.1-4-B)
Then, confirm that it indicates 120~180gf•cm.
2.
NOTE
Install the Torque Gauge on the reel disk firmly. Press the
REW button to turn the reel disk.
1-5: CONFIRMATION OF REEL BRAKE TORQUE
(S Reel Brake) (Refer to Fig. 1-4-B)
Once set to the Fast Forward mode then set to the Stop
1.
mode. While, unplug the AC cord when the Pinch Roller
Block is on the position of Fig. 1-4-A.
Move the Idler Ass'y from the S Reel.
2.
Install the Torque Gauge (JG002F) and Adapter
3.
(JG002B) on the S Reel. Turn the Torque Gauge
(JG002F) clockwise.
Then, confirm that it indicates 60~100gf•cm.
4.
(T Reel Brake) (Refer to Fig. 1-4-B)
Once set to the Fast Forward mode then set to the Stop
1.
mode. While, unplug the AC cord when the Pinch Roller
Block is on the position of Fig. 1-4-A.
Move the Idler Ass'y from the T Reel.
2.
Install the Torque Gauge (JG002E) and Adapter
3.
(JG002B) on the T reel. Turn the Torque Gauge
(JG002E) counterclockwise.
Then, confirm that it indicates 30~50gf•cm.
4.
The position at FF mode.
Pinch Roller Block
Stop at this position.
Cassette
The position at
STOP mode.
Capstan DD Unit
Cassette Holder Ass'y
Opener
Fig. 1-4-A
NOTE
If the torque is out of the range, replace the following
parts.
Check item
1-4
1-5
S Reel side:
Replacement Part
Idler Ass'y/Clutch Ass'y
S Reel/Tension Band/Tension
Connect/Tension Arm Ass'y
T Reel side:
T Reel/T Brake Band//T Brake
Spring/T Brake Arm
2. CONFIRMATION AND ADJUSTMENT
OF TAPE RUNNING MECHANISM
Tape Running Mechanism is adjusted precisely at the
factory. Adjustment is not necessary as usual. When you
replace the parts of the tape running mechanism because
of long term usage or failure, the confirmation and
adjustment are necessary.
2-1: GUIDE ROLLER
Playback the VHS Alignment Tape.
1.
Connect CH-1 of the oscilloscope to TP4501(Envelope)
2.
and CH-2 to TP102 (SW Pulse).
Press both VOL. DOWN button on the set and the
3.
Channel button (5) on the remote control for more than 2
seconds.
Trigger with SW Pulse and observe the envelope. (Refer
4.
to Fig. 2-1-A)
When observing the envelope, adjust the Taper Nut
5.
Driver slightly until the envelope will be flat.
Even if you press the Tracking Button, adjust so that
flatness is not moved so much.
Adjust so that the A : B ratio is better than 3 : 2 as shown
6.
in Fig. 2-1-B, even if you press the Tracking Button to
move the envelope (The envelope waveform will begin to
decrease when you press the Tracking Button).
Adjust the PG shifter during playback.
7.
(Refer to the ELECTRICAL ADJUSTMENTS)
NOTE
After adjustment, confirm and adjust A/C head.
(Refer to item 2-2)
Torque Gauge/Adapter
(JG002F/JG002B)
S Reel
Torque Gauge/Adapter
(JG002E/JG002B)
T Reel
Fig. 1-4-B
D2-2
CH-1
Envelope
(TP4501)
CH-1
Track
CH-2
SW Pulse (TP102)
EntranceExit
Max
A
A : B ≥ 3 : 2
B
CH-2
Track
Fig. 2-1-A
Max
Fig. 2-1-B
MECHANICAL ADJUSTMENTS
CONFIRMATION AND ADJUSTMENT OF AUDIO/
CONTROL HEAD
When the Tape Running Mechanism does not work well,
adjust the following items.
1.
Playback the VHS Alignment Tape.
2.
Confirm that the reflected picture of stamp mark is
appeared on the tape prior to P4 Cap as shown in Fig. 2-2-A.
When the reflected picture is distorted, turn the screw
a)
1 clockwise until the distortion is disappeared.
When the reflected picture is not distorted, turn the
b)
screw 1 counterclockwise until little distortion is
appeared, then adjust the a).
3.
Turn the screw 2 to set the audio level to maximum.
4.
Confirm that the bottom of the Audio/ Control Head and
the bottom of the tape is shown in Fig. 2-2-C.
When the height is not correct, turn the screw 3 to
c)
adjust the height. Then, adjust the 1~3 again.
Audio/Control Head
Reflected picture of
Stamp Mark
P4 Cap
TAPE RUNNING ADJUSTMENT
2-3:2-2:
(X VALUE ADJUSTMENT)
Confirm and adjust the height of the Reel Disk.
1.
(Refer to item 1-1)
Confirm and adjust the position of the Tension Post.
2.
(Refer to item 1-2)
Adjust the Guide Roller. (Refer to item 2-1)
3.
Confirm and adjust the Audio/Control Head.
4.
(Refer to item 2-2)
Connect CH-1 of the oscilloscope to TP102, CH-2 to
5.
TP4501 and CH-3 to HOTsideofAudioOutJack.
Playback the VHS Alignment Tape.
6.
Press and hold the Tracking-Auto button on the remote
7.
control more than 2 seconds to set tracking to center.
Set the X Value adjustment driver (JG153) to the 4 of
8.
Fig. 2-2-B. Adjust X value so that the envelope waveform
output becomes maximum. Check if the relation between
Audio and Envelope waveform becomes (1) or (2) of Fig.2-3.
Envelope
(1)
CH-3
Audio
(2)
Audio/Control Head
3
2
Audio/Control Head
Tape
Stamp Mark
1
4
Fig. 2-2-A
Fig. 2-2-B
0.25±0.05mm
Fig. 2-2-C
Fig. 2-3
2-4: CONFIRM HI-FI AUDIO (Hi-Fi model only)
1.
Connect CH-1 of the oscilloscope to TP4501 and CH-2 to
the Hi-Fi Audio Out Jack.
2.
Playback the VHS Alignment Tape.
(Refer to SERVICING FIXTURE AND TOOLS)
3.
Press and hold the Tracking-Auto button on the remote
control more than 2 seconds to set tracking to center.
4.
Press the Tracking Up button and count number of steps
which the audio output is changed from Hi-Fi (10KHz) to
MONO (6KHz).
5.
Press and hold the Tracking-Auto button on the remote
control more than 2 seconds to set tracking to center.
6.
Press the Tracking Down button and count number of
steps which the audio output is changed from Hi-Fi
(10KHz) to MONO (6KHz).
7.
If the difference are more than 3 steps, set the X Value
adjustment driver (JG153) to 4 of Fig. 2-2-B. Change the
X Value and adjust it so that the value becomes within 2
steps.
D2-3
MECHANICAL ADJUSTMENTS
3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE
3
4
5
6
2
1
8910
1. Tension Connect
2. Tension Arm
3. Guide Roller
4. Audio/Control Head
5. X value adjustment driver hole
6.
P4 Post
7.
T Brake Spring
8.
T Reel
9.
S Reel
10.
Adjusting section for the Tension Arm position
7
D2-4
ELECTRICAL ADJUSTMENTS
1.
BEFORE MAKING ELECTRICAL
ADJUSTMENTS
Read and perform these adjustments when repairing the
circuits or replacing electrical parts or PCB assemblies.
CAUTION
•
Use an isolation transformer when performing any
service on this chassis.
•
Before removing the anode cap, discharge electricity
because it contains high voltage.
•
When removing a PCB or related component, after
unfastening or changing a wire, be sure to put the wire
back in its original position.
•
When you exchange IC and Transistor for a heat sink,
apply the silicon grease on the contact section of the
heat sink. Before applying new silicon grease, remove all
the old silicon grease. (Old grease may cause damages
to the IC and Transistor).
Prepare the following measurement tools for electrical
adjustments.
1. Oscilloscope
2. Digital Voltmeter
3. Multi-sound Generator
4. Pattern Generator
On-Screen Display Adjustment
Unplug the AC plug for more than 5 seconds to set the
1.
clock to the non-setting state. Then, set the volume
level to minimum.
Press the VOL. DOWN button on the set and the
2.
Channel button (9) on the remote control for more than
2 seconds to appear the adjustment mode on the
screen as shown in Fig. 1-1.
--H.POSI
V.POSI
H.SIZE
V.SIZE
V.CENT
V.LIN
VS.CORR
G.DRV
B.DRV
R.BIAS
G.BIAS
B.BIAS
BRI CENT
BRI MAX
BRI MIN
FUNCTION
NO.
SUB CONT
19
UNI COL CENT
20
UNI COL MAX
21
UNI COL MIN
22
COL CENT
23
COL MAX
24
COL MIN
25
TINT
26
SHARP
27
RGB CONT
28
PARABOLA
29
TRAPEZIUM
30
COR TOP
31
COR BTM
32
V EHT
33
H EHT
34
FM.LVL
35
T.STE
36
Fig. 1-2
2. BASIC ADJUSTMENTS
(VCR SECTION)
2-1: PG SHIFTER
1.
Connect CH-1 on the oscilloscope to TP102 and CH-2
to TP4201.
2.
Playback the alignment tape.
3.
Press both VOL. DOWN button on the set and the
Channel button (5) on the remote control for more than
2 seconds to set tracking to center.
4.
Press the VOL. DOWN button on the set and the
channel button (3) on the remote control for more than 2
seconds until the indicator REC disappears. If the
indicator REC disappears, adjustment is completed.
(If the above adjustments doesn't work well:)
5.6.Press the VOL. DOWN button on the set and the
channel button (3) on the remote control for more than
2 seconds until the indicator REC disappears.
When the REC indicator is blinking, press both VOL.
DOWN button on the set and the channel button (4) on
the remote control for more than 2 seconds and adjust
the Tracking +/- button until the arising to the down of
Head Switching Pulse becomes 6.5 ± 0.5H.
(Refer to Fig. 2-1-A, B)
Use the Channel UP/DOWN button or Channel button
3.
(0-9) on the remote control to select the options shown
in Fig. 1-2.
Press the MENU button on the remote control to end
4.
the adjustments.
CH-2
6.5H
CH-1
Fig. 2-1-A
CH-2
CH-1
6.5H
Fig. 2-1-B
D3-1
ELECTRICAL ADJUSTMENTS
2-2: RF AGC
1.
Place the set with Aging Test for more than 15 minutes.
2.
Receive the VHF HIGH (63dB).
3.
Connect the digital voltmeter between the pin 5 ofCP601 and the pin 1 (GND) of CP601.
4.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (02) on the remote control to
select "RF.AGC".
5.
Press the VOL. UP/DOWN button on the remote control
until the digital voltmeter is 2.5 ± 0.05V.
2-3: SEPARATION
Please do the method (1) or method (2) adjustment.
Method (1)
1.
Set the multi-sound signal generator for each different
L-ch and R-ch frequency (Ex. L-ch=2KHz, R-ch=400Hz)
and receive the RF signal.
2.
Connect the oscilloscope to the Audio Out Jack.
3.
Press the AUDIO SELECT button on the remote control
to set to the stereo mode.
4.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (35) on the remote control to
select “FM LVL”.
5.
Press the VOL. UP/DOWN button on the remote control
to adjust it until the audio output wave becomes a fine
sine wave.
Method (2)
1.
Set the multi-sound signal generator L-ch=1KHz, R-ch
=Non input and receive the RF signal.
2.
Connect the oscilloscope to the Audio Out Jack (R-ch).
3.
Press the AUDIO SELECT button on the remote control
to set to the stereo mode.
4.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (35) on the remote control to
select “FM LVL”.
5.
Press the VOL. UP/DOWN button on the remote control
to adjust it until the R-ch output becomes minimum.
6.
Set the multi-sound signal generator L-ch=Non input,
R-ch=1KHz and receive the RF signal.
7.
Connect the oscilloscope to the Audio Out Jack (L-ch).
8.
Press the AUDIO SELECT button on the remote control
to set to the stereo mode.
9.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (35) on the remote control to
select “FM LVL”.
10.
Press the VOL. UP/DOWN button on the remote control
to adjust it until the L-ch output becomes minimum.
(TV SECTION)
2-4: CONSTANT VOLTAGE
1.
Set condition is AV MODE without signal.
2.
Using the remote control, set the brightness and
contrast to normal position.
3.
Connect the digital voltmeter to TP401.
4.
Adjust the VR1701 until the digital voltmeter is 117 ±
0.5V.
2-5: CUT OFF
1.
Place the set with Aging Test for more than 15 minutes.
2.
Set condition is AV MODE without signal.
3.
Using the remote control, set the brightness and
contrast to normal position.
4.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (01) on the remote control to
select "CUT OFF".
5.
Adjust the Screen Volume until a dim raster is obtained.
2-6: WHITE BALANCE
NOTE: Adjust after performing CUT OFF adjustment.
1.
Place the set with Aging Test for more than 15 minutes.
2.
Receive the gray scale pattern from the Pattern
Generator.
3.
Using the remote control, set the brightness and
contrast to normal position.
4.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (13) on the remote control to
select "R.BIAS".
5.
Press the CH. UP/DOWN button on the remote control
to select the "R.BIAS", "G.BIAS", "B.BIAS", "B.DRV" or
"G.DRV".
6.
Adjust the VOL. UP/DOWN button on the remote control
to whiten the R.BIAS, G.BIAS, B.BIAS, B.DRV, and
G.DRV at each step tone sections equally.
7.
Perform the above adjustments 5 and 6 until the white
color is looked like a white.
2-7: FOCUS
1.
Receive the monoscope pattern.
2.
Turn the Focus Volume fully counterclockwise once.
3.
Adjust the Focus Volume until picture is distinct.
2-8: HORIZONTAL POSITION
1.
Receive the monoscope pattern.
2.
Using the remote control, set the brightness and
contrast to normal position.
3.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (04) on the remote control to
select "H.POSI".
4.
Press the VOL. UP/DOWN button on the remote
control until the SHIFT quantity of the OVER SCAN on
right and left becomes minimum.
2-9: VERTICAL POSITION
1.
Receive the monoscope pattern.
2.
Using the remote control, set the brightness and
contrast to normal position.
3.
Adjust the VR404 until the horizontal line becomes fit to
the notch of the shadow mask.
D3-2
ELECTRICAL ADJUSTMENTS
2-10: VERTICAL SIZE
1.
Receive the monoscope pattern.
2.
Using the remote control, set the brightness and
contrast to normal position.
3.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (07) on the remote control to
select "V.SIZE".
4.
Press the VOL. UP/DOWN button on the remote
control until the Up/Down OVER SCAN Quantity
becomes equal to the Right/Left OVER SCAN Quantity.
2-11: VERTICAL LINEARITY
NOTE: Adjust after performing adjustments in section 2-10.
After the adjustment of Vertical Linearity, reconfirm
the Vertical Position and Vertical Size adjustments.
1.
Receive the monoscope pattern.
2.
Using the remote control, set the brightness and
contrast to normal position.
3.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (09) on the remote control to
select "V.LIN".
4.
Press the VOL. UP/DOWN button on the remote
control until the SHIFT quantity of the OVER SCAN on
upside and downside becomes minimum.
2-12: OSD HORIZONTAL
Activate the adjustment mode display of Fig. 1-1.
1.
Press the VOL. UP/DOWN button on the remote control
2.
until the difference of A and B becomes minimum.
(Refer to Fig. 2-2)
TV
00 OSD 20
BA
Fig. 2-2
2-13: SUB BRIGHT CENTER
1.
Receive the monoscope pattern. (RF Input)
2.
Using the remote control, set the brightness and
contrast to normal position.
3.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (16) on the remote control to
select "BRI CENT".
4.
Press the VOL. UP/DOWN button on the remote
control until the white 10% is starting to be visible
5.
Receive the monoscope pattern. (Audio Video Input)
6.
Press the INPUT SELECT button on the remote control
to set to the AV mode. Then perform the above
adjustments 2~4.
7.
Press the DVD button on the remote control to set to
the DVD mode.
8.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (16) on the remote control to
select "BRI CENT".
9.
Press the VOL. UP/DOWN button on the remote
control to set the same step numbers as the AV mode.
2-14: SUB TINT CENTER
1.
Receive the color bar pattern. (RF Input)
2.
Using the remote control, set the brightness, contrast,
color and tint to normal position.
3.
Connect the oscilloscope to TP803.
4.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (26) on the remote control to
select "TNT".
5.
Press the VOL. UP/DOWN button on the remote
control until the section "A" becomes a straight line
(Refer to Fig. 2-3).
6.
Receive the color bar pattern. (Audio Video Input)
7.
Press the INPUT SELECT button on the remote
control to set to the AV mode. Then perform the above
adjustments 2~5.
8.
Press the DVD button on the remote control to set to
the DVD mode.
9.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (26) on the remote control to
select "TNT".
10.
Press the VOL. UP/DOWN button on the remote
control until the tint step No. becomes "48"
D3-3
"A"
Fig. 2-3
ELECTRICAL ADJUSTMENTS
2-15: SUB COLOR CENTER
1.
Receive the color bar pattern. (RF Input)
2.
Using the remote control, set the brightness, contrast,
color and tint to normal position.
3.
Connect the oscilloscope to TP802.
4.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (23) on the remote control to
select "COL CENT".
5.
Adjust the VOLTS RANGE VARIABLE knob of the
oscilloscope until the range between white 100% and
0% is set to 4 scales on the screen of the oscilloscope.
6.
Press the VOL. UP/DOWN button on the remote
control until the red color level is adjusted to 120 ± 5%
of the white level. (Refer to Fig. 2-4)
7.
Receive the color bar pattern. (Audio Video Input)
8.
Press the INPUT SELECT button on the remote control
to set to the AV mode. Then perform the above
adjustments 2~6.
9.
Press the DVD button on the remote control to set to
the DVD mode.
10.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (23) on the remote control to
select "COL CENT".
11.
Press the VOL. UP/DOWN button on the remote
control to set the same step numbers as the AV mode.
White 0%
2-17: Confirmation of Fixed Value (step No.)
Please check if the fixed values of the each adjustment
items are set correctly referring below.
DVD
AV
NO.
FUNCTION
05
V.POSI
06
H.SIZE
08
V CENT
10
VS CORR
17
BRI.MAX
18
BRI.MIN
19
SUB CONT
20
UNI COL CENT
22
UNI COL MIN
24
COL.MAX
25
COLMIN
27
SHARP
28
RGB CONT
29
PARABOLA
30
TRAPEZIUM
31
COR TOP
32
COR BTM
33
V EHT
34
H EHT
RF
00
31
30
10
85
20
07
50
15
100
00
40
25
31
31
15
15
02
05
00
31
30
10
85
20
07
50
15
100
00
30
25
31
31
15
15
02
05
00
31
30
10
85
20
07
50
15
100
00
40
25
31
31
15
15
02
05
0%
100%
White 100%
Red Level
2-16: SUB CONTRAST MAX
Activate the adjustment mode display of Fig. 1-1 and
1.
press the channel button (21) on the remote control to
select "UNI COL MAX".
Press the VOL. UP/DOWN button on the remote
2.
control until the contrast step No. becomes "108".
Receive a broadcast and check if the picture is normal.
3.
Press the INPUT SELECT button on the remote control
4.
to set to the AV mode.
Activate the adjustment mode display of Fig. 1-1 and
5.
press the channel button (21) on the remote control to
select "UNI COL MAX".
Press the VOL. UP/DOWN button on the remote
6.
control until the contrast step No. becomes "110".
Receive a broadcast and check if the picture is normal.
7.
Press the DVD button on the remote control to set to
8.
the DVD mode.
Press the VOL. UP/DOWN button on the remote
9.
control to set the same step numbers as the AV mode.
Fig. 2-4
D3-4
ELECTRICAL ADJUSTMENTS
3.
PURITY AND CONVERGENCE
ADJUSTMENTS
NOTE
1.
Turn the unit on and let it warm up for at least 30
minutes before performing the following adjustments.
2.
Place the CRT surface facing east or west to reduce the
terrestrial magnetism.
3.
Turn ON the unit and demagnetize with a Degauss Coil.
3-1: STATIC CONVERGENCE (ROUGH ADJUSTMENT)
1.
Tighten the screw for the magnet. Refer to the adjusted
CRT for the position. (Refer to Fig. 3-1)
If the deflection yoke and magnet are in one body,
untighten the screw for the body.
2.
Receive the green raster pattern from the color bar
generator.
3.
Slide the deflection yoke until it touches the funnel
side of the CRT.
4.
Adjust center of screen to green, with red and blue on the
sides, using the pair of purity magnets.
5.
Switch the color bar generator from the green raster
pattern to the crosshatch pattern.
6.
Combine red and blue of the 3 color crosshatch pattern
on the center of the screen by adjusting the pair of
4 pole magnets.
7.
Combine red/blue (magenta) and green by adjusting the
pair of 6 pole magnets.
8.
Adjust the crosshatch pattern to change to white
by repeating steps 6 and 7.
3-2: PURITY
NOTE
Adjust after performing adjustments in section 3-1.
3-3: STATIC CONVERGENCE
NOTE
Adjust after performing adjustments in section 3-2.
1.
Receive the crosshatch pattern from the color bar
generator.
2.
Combine red and blue of the 3 color crosshatch pattern
on the center of the screen by adjusting the pair of
4 pole magnets.
3.
Combine red/blue (magenta) and green by adjusting the
pair of 6 pole magnets.
3-4: DYNAMIC CONVERGENCE
NOTE
Adjust after performing adjustments in section 3-3.
1.2.Adjust the differences around the screen by moving
the deflection yoke upward/downward and right/left.
(Refer to Fig. 3-2-a)
Insert three wedges between the deflection yoke and
CRT funnel to fix the deflection yoke.
(Refer to Fig. 3-2-b)
R G B
R
G
B
UPWARD/DOWNWARD SLANT RIGHT/LEFT SLANT
R
G
B
Fig. 3-2-a
R G B
1.
Receive the green raster pattern from color bar
generator.
2.
Adjust the pair of purity magnets to center the
color on the screen.
Adjust the pair of purity magnets so the color at the
ends are equally wide.
3.
Move the deflection yoke backward (to neck side)
slowly, and stop it at the position when the whole
screen is green.
4.
Confirm red and blue colors.
5.
Adjust the slant of the deflection yoke while watching the
screen, then tighten the fixing screw.
120BZ710668735WPB0217BUTTON,FRAME2
121BZ710010743WKA0032SPRING,FLAP
123BZ310374A5B6010740CABINET,BACK ASSY
124BZ710669702WPA0918CABINET,BACK
126BZ7106707230007456SHEET,JACK
128BZ710633752WSA0275COVER,AC HEAD
129BZ710671752WSA0292SHIELD,AV JACK
300BZ310375A5B701Z420ADECK ASSYA5B701Z420A
301BZ71056485OA400234PINCH ROLLER BLOCK
302BZ71068285OA500026AHC ASS'Y
303BZ71019385OP200290BELT,CAPSTAN (S)
304BZ71051585OP600581WORM
305BZ71009485OP500083BASE,AC HEAD
306BZ71011285OP800324SPRING,AC HEAD
307BZ71051685OA000459MAIN CHASSIS ASS'Y
308BZ71051785OA200089CLUTCH ASS'Y
309BZ71051885OA200090ARM IDLER ASS'Y
310BZ71051985OA300065LOADING ARM S UNIT
311BZ71052085OA300066LOADING ARM T UNIT
312BZ71052185OA400223INCLINED BASE T UINT 3S
313BZ71052285OA400232P5 ARM ASS'Y 2
314BZ71065085OA400235TENSION ARM ASS'Y 2
315BZ71052485OA400231INCLINED BASE S UNIT
316BZ71052585OP800358SPRING,LOCKER
317BZ71052685OP900736CASS,HOLDER
318BZ71052785OP900748CASS,SIDE L
319BZ71052885OP900749CASS,SIDE R
320BZ71052985OP900739LOCKER,R
321BZ71053085OA900228LINK UNIT
322BZ71053185OP000496POST,CASS GUIDE
323BZ71053285OP200316REEL,S (S)
324BZ71053385OP200317REEL,T (S)
325BZ71053485OP200308GEAR,IDLER
326BZ71053585OP200311GEAR,CLUTCH
327BZ71053685OP200312GEAR,COUPLING
328BZ71053785OP200313LEVER,CLUTCH
329BZ71053885OP300194GEAR,MAIN LOADING
330BZ71009285OP400490LEVER,TENSION
331BZ71009385OP400492HOLDER,TENSION
332BZ71036685OP400520CAP.P4
333BZ71053985OP400539BAND,TENSION
334BZ71054085OP400533CONNECT,TENSION
335BZ71054185OP600573ARM,BRAKE T
336BZ71054285OP600583BAND,BRAKE T
337BZ71054385OP600577CAM,PINCH ROLLER
338BZ71054485OP600578CAM,MAIN
339BZ71054585OP600579ROD,MAIN