Design and specifications are subject to change without notice.
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.
PUT PARTS AND WIRES IN THE
4.
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.
7.PERFORM A SAFETY CHECK AFTER
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
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.
IMPORTANT
Inferior silicon grease can damage IC's and transistors.
When replacing an IC's or transistors, use only specified silicon grease (YG6260M).
Remove all old silicon before applying new silicon.
Licensed by BBE Sound, Inc. under USP4638258 and 4482866.
BBE and BBE symbol are registered trademarks of BBE
Sound, Inc.
A1-1
CONTENTS
SERVICING NOTICES ON CHECKING......................................................................................................
HOW TO ORDER PARTS ...........................................................................................................................
Nicam STYes
Tone 1/2Yes
Surround On/OffNo
Pin Code Yes
AVYes
SkipYes
ChannelYes
Hotel LockNo
Sleep TimerYes
Wide ModeYes
Sound MuteYes
A3-1
GENERAL SPECIFICATIONS
G-8OSD LanguageEnglish French Spanish
OSD Language SettingEnglish
G-9Clock and Sleep TimerMax Time120 Min
Timer Step 10 Min
On/Off TimerProgram(On Tim / Off Tim)No
Wake Up TimerNo
Timer Back-up (at Power Off Mode) more than -- Min Sec
G-10RemoteUnitRC-DN
ControlGlow in Dark RemoconNo
FormatNEC
Custom Code 80-63 h
Power SourceVoltage(D.C)3V
UM size x pcsUM-4 x 2 pcs
Total Keys 33 Keys
KeysPower ( Stand By )Yes
1Yes
2Yes
3Yes
4Yes
5Yes
6Yes
7Yes
8Yes
9Yes
0 / AVYes
CH Up No
CH DownNo
Volume Up / +Yes
Volume Down / -Yes
Quick ViewNo
SleepYes
Info ( CH Call )Yes
NormalNo
MenuYes
EnterYes
MuteYes
Dolby Virtual On/OffNo
WideYes
AutoNo
PositionYes
Fine Tuning +No
Fine Tuning -No
Tone 1/2No
T'TEXT KeysTEXT / MIX / TVYes
CH Up / Page UpYes
CH Down / Page DownYes
RedYes
GreenYes
Yellow / Fine Tuning -Yes
Cyan / Fine Tuning +Yes
F/T/B(Expand) / NormalYes
Reveal / SkipYes
Display CancelYes
ResetYes
Reset / Tone 1/2No
Hold / StatusYes
Sub Page / Quick ViewYes
G-11FeaturesAuto DegaussYes
Auto Shut OffYes
Canal+No
CATVNo
Anti-theft(Back Up 30 Min.)Yes
Memory(Last CH)Yes
Memory(Last Volume)Yes
BBEYes
Auto SearchYes
CH AllocationNo
Channel LockNo
Just Clock FunctionNo
Game PositionNo
CH LabelNo
VM CircuitYes
Full OSDNo
UnitextNo
FastextYes
Top TextNo
PremiereNo
Comb FilterNo
Auto CH MemoryNo
Stable SoundNo
Auto Set Up Yes
FBT Leak Test ProtectNo
Double Focus & Dynamic FocusYes
Wss Signal Wide ChangeYes
Virtual Dolby SurroundNo
Hotel LockNo
Germany Italian
Lines
A3-2
GENERAL SPECIFICATIONS
(
)
(
)
C
Surfaces
G-12AccessoriesOwner's ManualLanguageEnglish
Remote Control UnitYes
Rod Antenna
Loop Antenna
U/V Mixer
DC Car Cord (Center+)
Guarantee Card
Warning SheetYes
Circuit Diagram
Antenna Change Plug
Service Facility List
Important Safeguard
Dew/AHC Caution Sheet
AC Plug Adapter
Quick Set-up SheetYes
BatteryYes
AC Cord
AV Cord (2Pin-1Pin)
Registration Card
PTB Sheet
300 ohm to 75 ohm Antenna Adapter
G-13InterfaceSwitchFrontPower (Tact Sw)No
RearAC/DCNo
IndicatorPowerNo
TerminalsFrontVideo InputNo
RearVideo Input(Rear1)
G-14Set SizeApprox. W x D x H (mm) 749 x 490 x 483
G-15WeightNet (Approx.) 37.2 kg
G-16CartonMaster Carton
Gift BoxYes
Drop Test
Container Stuffing204
G-17Cabinet MaterialCabinet FrontPS 94HB
w/Guarantee Card
Poles Pole
Terminal type
Terminal -
UM size x pcsUM-4 x 2 pcs
OEM BrandNo
System SelectNo
Main Power SWYes
Sub PowerNo
Channel UpNo
Channel DownNo
Volume UpNo
Volume DownNo
TV/CATV SelectorNo
DegaussNo
Main Power SWNo
Stand-byYes
On TimerNo
Audio InputNo
Other Terminal
Video Input(Rear2)
Audio Input(Rear1)
Audio Input(Rear2)
Video Output
Audio Output
Euro Scart(21Pin)Yes ( x2 )
Component Input
DiversityNo
Ext SpeakerNo
DC Jack 12V(Center +)No
VHF/UHF Antenna Input
AC OutletNo
Gross (Approx.) 40.6 kg
Content----
Material--
Dimensions W x D x H(mm) -- x -- x --
Description of Origin
MaterialDouble/White
Dimensions W x D x H(mm) 831 x 605 x 587
DesignAs per Buyer's
Description of Origin
Height (cm) 31
Cabinet RearPS 94HB
HolderPS 94V0 DECABROM'
D Type
Natural Dropping At 1
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
--- lbs
---lbs
No
Sets
/--
No
No
orner / 3 Edges / 6
Sets/40' container
A3-3
DISASSEMBLY INSTRUCTIONS
1. 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. 1-1.)
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. 1-3.)
Location of Anode Cap
Fig. 1-3
NOTE
Confirm that there is no dirt, dust, etc. at the spot where
the cap was located.
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. 1-4.)
Screwdriver
Alligator Clip
GND on the CRT
Flip up the sides of the Rubber Cap in the direction of the
2.
arrow and remove one side of the support.
(Refer to Fig. 1-2.)
Rubber Cap
CRT
Support
Support
CRT
Fig. 1-1
Fig. 1-2
Fig. 1-4
4. Insert one end of the Anode Support into the anode button,
then the other as shown in Fig. 1-5.
Support
CRT
5.6.Confirm that the Support is securely connected.
Put on the Rubber Cap without moving any parts.
Fig. 1-5
B1-1
DISASSEMBLY INSTRUCTIONS
2.
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. 2-1.)
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. 2-3.)
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. 2-2.)
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. 2-1
Tweezers
IC
Peel off the Masking Tape.4.
Absorb the solder left on the pattern using the Braided
5.
Shield Wire. (Refer to Fig. 2-4.)
NOTE
Do not move the Braided Shield Wire in the vertical
direction towards the IC pattern.
Fig. 2-3
Braided Shield Wire
Soldering Iron
IC
Fig. 2-2
IC pattern
Fig. 2-4
B2-1
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. 2-5.)
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. 2-6.)
Fig. 2-5
When bridge-soldering between terminals and/or the
4.
soldering amount are not enough, resolder using a Thintip Soldering Iron. (Refer to Fig. 2-8.)
Thin-tip Soldering Iron
IC
Fig. 2-8
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. 2-7.)
NOTE
Do not absorb the solder to excess.
Soldering Iron
IC
Braided Shield Wire
Fig. 2-6
Fig. 2-7
B2-2
SERVICE MODE LIST
This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily.
SERVICE MODE will operate by the procedures below.
1. Set to the STANDBY at the minimum of volume.
2. Press the "Entry key" on the remote control for SERVICE MODE for more than 3 seconds.
3. Press POWER button on the remote control to turn the POWER ON within 2 seconds.
Entry KeyOperations
0
1
6
7
8
9
Reset the user setting items (PICTURE, VOLUME, LANGUAGE and NICAM AUTO/OFF) to the initial
state for delivery.
Initialization of the factory.
NOTE: Do not use this for the normal servicing.
POWER ON total hours is displayed on the screen.
Refer to the "CONFIRMATION OF USING HOURS".
Can be checked of the INITIAL DATA of MEMORY IC.
Refer to the "NOTE FOR THE REPLACING OF MEMORY IC".
Releasing of PROTECTION PASSWORD.
Writing of EEPROM initial data.
NOTE: Do not use this for the normal servicing.
Display of the Adjustment MENU on the screen.
Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment).
CONFIRMATION OF HOURS USED
POWER ON total hours can be checked on the screen. Total hours are displayed in 16 system of notation.
1.
Set to the STANDBY at the minimum of volume.
2.
Press the channel button (6) on the remote control for
more than 3 seconds.
3.
Press POWER button on the remote control to turn the
POWER ON within 2 seconds.
4.
After the confirmation of using hours, turn off the power.
INIT 01 00
CRT ON 0000
FIG. 1
Initial setting content of MEMORY IC.
POWER ON total hours.
= (16 x 16 x 16 x thousands digit value)
+ (16 x 16 x hundreds digit value)
+ (16 x tens digit value)
+ (ones digit value)
C-1
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: No need setting for the position of the mark @ due to the adjustment value.
1.
Press the channel button (6) on the remote control for more than 3 seconds.
2.
Press POWER button on the remote control to turn the POWER ON within 2 seconds.
3.
ADDRESS and DATA should appear as Fig. 1.
ADDRESS DATA
INIT 01 00
CRT ON 0000
Fig. 1
4.
ADDRESS is now selected and should "blink". Using the VOL. UP/DOWN button on the remote, step through the
ADDRESS until required ADDRESS to be changed is reached.
5.
Press ENTER to select DATA. When DATA is selected, it will "blink".
6.
Again, step through the DATA using VOL. UP/DOWN button until required DATA value has been selected.
7.
Pressing ENTER will take you back to ADDRESS for further selection if necessary.
8.
Repeat steps 4 to 7 until all data has been checked.
9.
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.
C-2
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.
Inferior silicon grease can damage IC's and transistors.
•
When replacing IC's and transistors, use only specified
silicon grease (YG6260M).
Remove all old silicon before applying new silicon.
Prepare the following measurement tools for electrical
adjustments.
1. Digital Voltmeter
2. Pattern Generator
On-Screen Display Adjustment
Set to the STANDBY at the minimum of volume.
1.
Press the channel button (9) on the remote control for
2.
more than 3 seconds.
Press POWER button on the remote control to turn the
3.
POWER ON within 2 seconds. The Fig. 1-1 screen will
appear.
35 H POSI OSD
36 V POSI OSD
37 H POSI TEXT
38 V POSI TEXT
39 H POSI 60
00 CUT OFF
35 TV
4.5.Use the PROG/PAGE UP/DOWN button or Channel
button (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
the adjustments.
123
124
67
67
00
VCO Status MMM
Fig. 1-1
2. BASIC ADJUSTMENTS
2-1: CONSTANT VOLTAGE
1.
Place the set with Aging Test for more than 5 minutes.
2.
Using the remote control, set the brightness and contrast
to normal position.
3.
Connect the digital voltmeter to TP501.
4.
Set condition is AV MODE without signal.
5.
Adjust the VR501 until the digital voltmeter is 135 ± 0.5V.
2-2: VCO
1.
Place the set with Aging Test for more than 10 minutes.
2.
Using the remote control, set the brightness and
contrast to normal position.
3.
Connect the oscillator (39.5MHz) to TP001.
4.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (13) on the remote control to
select "VCO COARSE".
5.
Press the VOL. UP/DOWN button on the remote
control until the "OK" appear on the screen. If the "OK"
is not displayed, select the "+" side on the changed
from "+" to "-".
6.
Press the PROG/PAGE UP button once to set to "VCO
FINE" mode.
7.
Press the VOL. UP/DOWN button on the remote
control to select the 5 step down point from the upper
limit on the "OK".
(Example: In case of the "OK" point 30~41, select 36.)
2-3: AGC VOLTAGE
1.
Place the set with Aging Test for more than 15 minutes.
2.
Receive the UHF (63dB).
3.
Connect the digital voltmeter to pin 5 of CP101.
4.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (01) on the remote control to
select "RF AGC".
5.
Press the VOL. UP/DOWN button on the remote
control until the digital voltmeter is 1.85 ± 0.05V.
2-4: CUT OFF
1.
Set condition is AV MODE without signal.
2.
Using the remote control, set the brightness and contrast
to normal position.
3.
Place the set with Aging Test for more than 15 minutes.
4.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (00) on the remote control to
select "CUT OFF".
5.
Adjust the Screen Volume until a dim raster is obtained.
COLOR CENT
COLOR MAX
COLOR MIN
M R CUT OFF
M G CUT OFF
M B CUT OFF
CVBS OUT
APR THR
BELL
BANDPASS
H POSI OSD
V POSI OSD
H POSI TEXT
V POSI TEXT
H POSI 60
VS 4:3
HS 4:3
PC 4:3
CC 4:3
S CORR
E/W SHAPE
TRAPEZIUM
VS FULL
HS FULL
PC FULL