SERVICE MODE ...................................................................................................................................................... 4
SCREEN AND MIRROR ALIGNMENTS ................................................................................................................13
CHAPTER 2SPECIFIC INFORMATIONS
GENERAL ADJUSTMENTS
SETTING & ADJUSTING DATA ..............................................................................................................................14
LOCATION OF CONTROLS ................................................................................................................................... 15
CHASSIS AND CABINET REPLACEMENT PARTS LIST......................................................................................23
PC BOARDS LAYOUT TOP VIEW.......................................................................................................................... 45
PC BOARDS BOTTOM VIEW.................................................................................................................................47
TABLE OF CONTENTS
SPECIFIC INFORMATIONS
TERMINAL VIEW OF TRANSISTORS ................................................................................................................... 54
WARNING : Service should not be attempted by anyone unf amiliar with the necessary precautions on this receiver . The f ollowing
are the necessary precautions to be observed before servicing this chassis.
1. An isolation transformer should be connected in the power line between the receiver and the AC line before any service is
performed on the receiver.
2. When replacing a chassis in the cabinet, always be certain that all the protective devices are put back in place, such as; nonmetallic control knobs, insulating covers, shields, isolation resistor-capacitor network etc.
LAMP REPLACEMENT CAUTION
When replacing the lamp of LCD projection TV, use Lamp Module Kit.
Be sure to read the caution in the instruction manual before replacing.
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These characteristics are
often passed unnoticed by a visual inspection and the protection afforded by them cannot necessarily be obtained b y using
replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this manual and its supplements; electrical components having such features are identified by
the international hazard symbols on the schematic diagram and the parts list.
Before replacing any of these components, read the parts list in this manual carefully. The use of substitute replacement
parts which do not have the same safety characteristics as specified in the parts list may create shock, fire or other hazards.
GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
– 3 –
1. ENTERING TO SERVICE MODE
1) Press o button once on
Remote Control.
SERVICE MODE
2) Press o button again to
keep pressing.
3) While pressing the o button,
press MENU button on TV set.
GENERAL ADJUSTMENTS
2. DISPLAYING THE ADJUSTMENT MENU
1) Press MENU button on TV.
Service mode
3. KEY FUNCTION IN THE SERVICE MODE
The following key entry during display of adjustment menu provides special functions.
SPECIFIC INFORMATIONS
Frequency of lamp replacementCALL + RGB button
Test signal selection :a button (on Remote)
Selection of the adjustment items :Channel s/t (on TV or Remote)
Change of the data value :Volume ; +/– (on TV or Remote)
Adjustment menu mode ON/OFF :MENU button (on TV)
Initialization of the memory (QA02) :CALL + Channel button on TV (s)
“CSBRT” selection :1 button
“SCNT” selection :4 button
“COLP” (or “OTHER”) selection :5 button
“TNTC” (or “TNTV”) selection :6 button
Self diagnostic display ON/OFF :9 button ............. note: Displayed differently as shown below , depending on the
Item
Data
(Service mode display)
Adjustment mode
S
Press
Press
Item
Data
S
setting of the receiving color system.
COLP (PAL)
COLC (NTSC)
COLS (SECAM)
CAUTION : Never try to perform initialization unless you have changed the memory IC.
– 4 –
4. SELECTING THE ADJUSTING ITEMS
1) Every pressing of CHANNEL s button in the service mode changes the adjustment items in the order of table-2.
(t button for reverse order)
Refer to table-2 for preset data of adjustment mode.
(See SETTING & ADJUSTING DATA on page 14)
5. ADJUSTING THE DATA
1) Pressing of VOLUME ; +/– button will change the value of data in the range from 00H to FFH. The variable
range depends on the adjusting item.
6. EXIT FROM SERVICE MODE
1) Pressing POWER button to turn off the TV once.
■ INITIALIZATION OF MEMORY DATA OF QA02
After replacing QA02, the following initialization is required.
1. Enter the service mode, then select any register item.
2. Press and hold the CALL button on the Remote, then press the CHANNEL s button on the TV. The initialization of QA02 has
been complated.
3. Check the picture carefully. If necessary, adjust any adjustment item above.
Perform “Auto search Memory” on the owner’s manual.
CAUTION: Never attempt to initialize the data unless QA02 has been replaced.
7. TEST SIGNAL SELECTION
1) Every pressing of a button on the Remote Control changes the built-in test patterns on screen as described below
in SERVICE MODE.
GENERAL ADJUSTMENTS
Signal off
NTSC signals (14 patterns)
PAL signals (14 patterns)
SignalsPicture
• Red raster
• Green raster
• Blue raster
• All Black
• All White
• Black & White
• Black cross-bar
• White cross-bar
• Black cross-bar
on green raster
• Black cross-hatch
• White cross-hatch
• Black cross-dot
• White cross-dot
SPECIFIC INFORMATIONS
• H signal (white)
• H signal (black)
The signals marked with are not usable to display in the Test signal for some model.
*
– 5 –
8. SELF DIAGNOSTIC FUNCTION
1) Press “9” button on Remote Control during display of adjustment menu in the service mode.
The diagnosis will begin to check if interface among IC’s are executed properly.
2) During diagnosis, the following displays are shown.
<SELF CHECK>
23******
TIME : 000000
LAMP : 0000 00
BUS LINE : OK
BUS CONT : OK
BLOCK : UV V1 V2
QV01
GENERAL ADJUSTMENTS
Indicated color of mode now selected : Green and Red
Indicated color of other modes: Blue
Green :Normal
Red : The microcomputer operates to provide judgement
of no video signal. The red color is still indicated
though the signal is input, failure may exist in input
signal line including QV01.
QV01 : In case of indication green ---Normal
In case of indication red with input signal---Failure may exist in output line including QV01.
Part number of microcomputer (QA01)
Toral hour of turn the TV on.
(unit: H, Max. 999999 hours)
Showing the operation hour of lamp.
LAMP : 0000 00
Frequency of lamp replacement.
Showing a count 1 by “CALL + RGB” button in “Service mode.”
BUS LINE CHECK----“OK” is normal.
SPECIFIC INFORMATIONS
“SDA1-GND” ---------- SDA-GND short circuit.
“SCL1-GND” ---------- SCL-GND short circuit.
“SCL1-SDA1” --------- SCL-SDA short circuit.
BUS CONT --- “OK” is normal.
When indication shows “Q uuu NG”, the device with
the number may possibly be damaged.
BLOCK
UV : TV reception mode
V1 : VIDEO 1 input mode (a1)
V2 : VIDEO 2 input mode (a2)
The items marked with are not usable to display in the SELF DIAGNOSTIC FUNCTION for some model.
*
NOTE: (1)In case that power indicator is blinking with in-
terval of 1 second; A part of Bus line does not
operate normally. Check Bus line.
(unit H, Max. 9999 hours)
(0~99)
– 6 –
1. ENTERING TO DESIGN MODE
1) Select the Service mode.
DESIGN MODE
2) While pressing CALL button on Remote
and press MENU button on TV.
3) Press MENU button on TV.
SD
(Design mode)(Adjustment mode)
When QA02 is initialized, items “OPT0” and “OPT1” of DESIGN MODE are set to the data of the representative model of this
chassis family.
Therefore, because ON-SCREEN specification remains in the state of the representative of model. This model is required to
reset the data of items “OPT0” and “OPT1”.
2. SELECTING THE ADJUSTING ITEMS
Every pressing of CHANNEL t button in the design mode changes the adjustment items in the order of table-3.
(s button for reverse order)
Refer to table-3 for data of design mode.
(See SETTING & ADJUSTING DATA on page 14)
3. ADJUSTING THE DATA
Pressing of VOLUME s or t button will change the value of data.
Press
Press
ITEM
DATA
GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
– 7 –
GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
ELECTRICAL ADJUSTMENTS
(Reference factory adjustment)
Adjusting Conditions and Procesures
Adjust by SUB address VPOS so that the up and down positions of the circle on Phillips Pattern will
declines)
A = 70±5 %
(The CSBRT data is changed to 52 from the initial value by a microcomputer, and both screen
come to the center.
equal.
Adjust by SUB address HPOS so that the left and right vertical bars of Phillips Pattern will look
Connect the CSBRT adjusting signals to the video input.
Install the W/B checker on the screen.
Select CSBRT at adjusting mode.
(When the data is adjusted, the SCBRT data returns to the initial value and screen brightness
brightness will turn to MAX.)— To be dealt with by the production line
Adjust the CSBRT data so that the brightness at the time turns to (Normally White) x A%.
Connect the 501RE white signals to the video input and adjust by RDRV and BDRV so that they
will come to the following values.
y = 0.330±0.005
x = 0.280±0.005
As shown in again, repeat after adjusting the CSBRT data.
Select BRTC at adjusting mode.
Visually checked number of collapsed black lines : 4±1.5 lines
Signal
WG Phillips
Pattern
Visual adjustment by
patterns
ItemsOutput Point
AdjustmentInput PointAdjusting
Vertical phase
F0LP Series
Completing adjustment
(VPOS)
Sub Bright
(NTSC) signal
Do not use
(BUS control)
Phillips Pattern
of FRANCE
SECAM
WG Phillips
pattern
Do not use
Visual adjustment by
patterns
(BUS control)
Horizontal phase
(HPOS)
– 8 –
Phillips Pattern
of FRANCE
SECAM
CSBRT
Adjusting
signals
(100% all
white signals)
W/B checker (CA110)
(Set condition: dy-
namic)
Bright adjustment
(CSBRT) and
white balance
adjustment
RDRV
501RE
W/B adjusting
BDRV
signals
Sub-bright
signals
(J2ch)
Visual adjustment by
patterns
(Set condition: dy-
namic)
Sub-light adjust-
ment
(BRTC)
Adjusting Conditions and Procesures
GENERAL ADJUSTMENTS
Ghost
Set to GHST adjusting mode.
Signal
Crosshatch
Visual adjustment by
screen’s vertical line.
Adjust by moving the data up and down so that the ghost will not appear on the left or right of the
signal
patterns
*The ghost mentioned here is defined as the shadow that appears on the left or right of the 6th
(E4ch)
(BUS control)
(Set condition: )
pixel of image signal on the screen. (See illustration below)
Ghost image (when the ghost appeared on the right)
Signal
Set to FLCK adjusting mode.
Move the FLCK data up and down to minimize the flicker while viewing the screen.
Retma signal
(E7ch)
Visual adjustment by
patterns
(BUS control)
(Set condition: )
SPECIFIC INFORMATIONS
ItemsOutput Point
AdjustmentInput PointAdjusting
Ghost adjustment
(GHST)
– 9 –
Flicker adjustment
(FLCK)
2.0 ± 0.1 V (p-p)
Adjusting standards
GENERAL ADJUSTMENTS
procedures
Adjusting conditions and
amplitude from the pedestal level to
Select SCNT and adjust the
0.9±0.1V (p-p)
the white peak.
Select COLP.
upper half
* P-P value of
part.
(P-P value of upper half)
Adjust the amplitude of color bar’s
upper half
1.3±0.1V (p-p)
* P-P value of
part.
Select COLS.
Adjust the amplitude of color bar’s
(P-P value of upper half)
Measuring
Synchro
instruments
SPECIFIC INFORMATIONS
TP46B
Sub-bright signal
Contrast:MAX
(J2ch)
Bright:CNT
Color:CNT
Dynamic
* Selectable picture:
Synchro
TP46B
PAL sub-bright
signal
Contrast:MAX
Bright:CNT
(UK23ch)
Dynamic
Color:CNT
* Selectable picture:
Synchro
TP46B
SECAM color bar
(E2ch)
Color:CNT
* Selectable picture:
Dynamic
Contrast:MAX
Bright:CNT
ItemsNamesSettingsInput signalsMeasuring points
Unit adjustment
Sub-contrast
[SCNT]
Sub-color
center
PAL
[COLP]
Sub-color
center
SECAM
[COLS]
– 10 –
Power
source
SG
Jig
RGB drive PCB
Personal
computer
or
jig
R, G, B, HD, VD
PV3000
C bus line to the pedestal. Input signal is [white 100% raster
2
Adjust the R + waveform as shown in Fig. 1 using an oscilloscope
Adjusting value 6.50V±0.01V
Adjust the R – waveform as shown in Fig. 1 using an oscilloscope
SymbolsAdjusting methods and adjusting values
SIGCTR
RSIGC
Adjusting value 6.50V±0.01V
Adjust the G - waveform as shown in Fig. 1 using an oscilloscope
Adjusting value 6.50V±0.01V
Adjust the B - waveform as shown in Fig. 1 using an oscilloscope
Adjusting value 6.50V±0.01V
GSIGC
BSIGC
Adjust the voltage of SIGC land using a digital voltmeter
Adjusting value 6.50V±0.01V
SIGC
Adjust the R1 waveform as shown in Fig. 2 using an oscilloscope
Adjusting value 6.50V±0.01V
Adjust the R + positive waveform as shown in Fig. 3 using an oscilloscope
Adjusting value 2.0V±0.1V
CVB+
BLKLIM
GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
Connect the output signals (R, G, B, HD, VD) of the ED scan converter (PV3000) and I
ItemsAdjusting methods and standard values
RGB
locations
Adjusting
R9992
R+
terminals
Measuring
C communication using the jig.
2
signal]
DRIVE
(Align the positive and negative levels by varying the levels of items 1 ~ 4, and 6 (point of mark → [arrow mark] of Fig. 1)
Start I
Adjust items 1 ~ 7.
PCB
Items
For adjusting waveforms, refer to Fig. 2 and Fig.3.
R+center
1
R9375
R–
R–center
2
R9751
G–
G–center
3
– 11 –
R9752
B–
B–center
4
R9750
SIGC
R1 +
center
5
R9754
R1
R1 center
6
R950
R+
Black
limiter
7
<System Configuration>
GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
Adjust to
2.0V
Adjust to
6.50V
Fig. 1 Adjusted waveformFig. 3 Adjusted waveform
Fig. 2 Adjusted waveform
Adjust to
5.00V
ItemsAdjusting methods and standard values
RGB
DRIVE
PCB
– 12 –
SCREEN AND MIRROR ALIGNMENTS
ASSEMBLING OF
FRONT SCREEN
FRONT
Lenticular sheet
FRONT
Front panel
MOUNTING OF
FRONT SCREEN
Fresnel sheet
GENERAL ADJUSTMENTS
Lenticular sheet
Stick cotton
cloth tape
Fresnel sheet
SPECIFIC INFORMATIONS
Label with part
number
Label with part
number
CLEANING OF LENS AND MIRROR
CAUTION :Do not hold the optical system parts (lens and
mirror) with bare hand to avoid finger-prints on
the surface of those parts.
HOW TO CLEAN LENS AND MIRROR
1. Be sure to remove sand dust with an air brush, etc.
2. When it is stained slightly, breathe upon it and wipe away
with the specified cleaning cloth.
For other stains than the above, wipe the stains away with
the specified cloth into which a cleaning liquid has been
soaked.
R DRIVE
B DRIVE
SUB CONTRAST MAX
SUB BRIGHTNESS CENTER
SUB COLOR CENTER NTSC
SUB COLOR CENTER PAL
SUB COLOR CENTER SECAM
SUB CONTRAST TV
EXT PRE. VOL
VOL SCART
FM VOL PRESCALE
NICAM VOL PRESCALE
NICAM THRESHOLD LEVEL
NICAM THRESHOLD LEVEL
IGR THRESHOLD LEVEL
IGR THRESHOLD LEVEL
NICAM ON LEVEL
NICAM OFF LEVEL
—
—
H-POSITION
V-POSITION
SUB TINT CENTER TV
SECAM B-Y
SECAM R-Y
—
—
—
SUB BRIGHTNESS
FLICKER
GHOST
Preset
FCH
64H
16H
00H
00H
00H
20H
04H
07H
A9H
9AH
A1H
9FH
B4H
08H
DESIGN MODE
ADJUSTING ITEMS AND DATA IN THE DESIGN MODE:
ItemName of adjustmentPreset Data
OPT0
OPT1
OPTION 0
OPTION 1
00H
02H
Table-2
– 14 –
Front
LOCATION OF CONTROLS
ON-TIMER indicator
POWER indicator
GENERAL ADJUSTMENTS
LAMP
Back
Behind the door
RGB
RGB
RGB IN
RGB on/offHeadphones jack
RGB
S-VIDEO VIDEO
(3)
EXT3 IN
(S-video/video/
autio)
Remote sensor
L/MONO R
AUDIO
(3.5 mmø, stereo)
MENU
MENU EXIT
Volume ts
EXIT
EXT3 IN/OUT
(Scart-3)
(AUDIO/VIDEO)
POWER switch
CH
Programme position ts
Q(3)
a3S
(S-VIDEO)
COMPONENT
VIDEO INPUT
Y
] Aerial input
WOOFER OUT
WOOFER
OUT
SPECIFIC INFORMATIONS
Q(2)
Q(2)
(AUDIO/VIDEO)
(S-VIDEO)
(AUDIO/VIDEO)
(S-VIDEO)
EXT2 IN/OUT
(Scart-2)
a2S
a2S
– 15 –
Q(1)
(AUDIO/VIDEO)
EXT1 IN/OUT
(Scart-1)
P
B/CB
PR/C
R
(AUDIO/VIDEO)(FIXED)
Q(4)
AUDIO
L
L
AUDIO
R
R
FIXED AUDIO OUT
EXT4 IN
(Component video input)
Remote Controller
GENERAL ADJUSTMENTS
F
Number buttons
1 or 2 Digit channel
selection
Teletext/Time display y
SPECIFIC INFORMATIONS
• MENU
• Program position st
Menu
F
1
4
7
SIZE
2
5
8
0
P
ENTER
P
Power on/Standby
CALL
3
TEXT
TV
6
CALL
Teletext
9
P
EXIT
• Programme position st
• Teletext st
• Input source selection
(EXT1/EXT2/EXT3/EXT4)
• RGB on/off (with F button)
Picture Controls
• Menu <>
• Volume – +
EXIT
Stereo/Dual
VCR (VTR)/DVD
functions to operate
your Toshiba VCR or
DVD.
fturns on or off
Rstops a tape or disk
Splays a tape or disk
R R
pauses playback
)fast forwords a video tape
)
R
skips to the next chapter
(rewinds a video tape
R
( skips to the previous chapter
VTR/DVD
Sound mute
Super woofer on/off
Volume + –
VTR/DVD
Note:N button does not function for this TV.
– 16 –
PROGRAMMING CHANNEL MEMORY
Auto tuning
Before using Auto tune it is important that you select your desired system i.e. B/G for Continental
Europe, D/K for Eastern Europe, I for the U. K., L1
(12) and L2 (8) for France.
Should you also wish to tune to alternative systems
this must be done manually, after using Auto tune.
Press the MENU button and press the > (or <) but-
1
ton to
select
the SET UP menu.
Press the > button to
2
play.
Press the (or ) button to
Press the (or ) button to
3
ING.
Press the > (or <) button to select the required SYS-
TEM. i.e. B/G, D/K, I, L1 (12) and L2 (8).
select
the AUTO TUNING dis-
highlight
highlight
START.
AUTO TUN-
Manual tuning
Press the MENU button and press the > (or <) but-
1
ton to select the SET UP menu.
Press the (or ) button to
2
TUNING.
Press the > button to
menu and ENTER button.
Press the > (or <) button to select SEARCH.
3
Press the button to search up the band (>>>) or
the button to search down the band (<<<).
The SEARCH will flash and the TV will show the
channel numbers whilst the TV is searching.
When a station/satellite is found it will be display ed.
Press the > (or <) button to
4
GRAMME NO.
select
highlight
the MANUAL TUNING
select
MANUAL
the PRO-
GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
Press the > button to start the automatic search.
4
DO NOT PRESS ANY BUTT ONS WHILST THE A UTOMATIC SEARCH IS IN PROGRESS. If you mak e
a mistake simply repeat steps 3 and 4 to start again
from the beginning.
Each station will be displayed along with a station
identifier, if available.
Allow the television to complete the search.
To tune any stations on different systems, choose
the system you want, then use Manual tune for all
the extra stations you require.
Press the (or ) button to
sition number required.
Press the ENTER button if you wish to store the
broadcast displayed (ENTER: TO STORE will highlight momentarily) or repeat from step 3 if you wish
to continue searching.
The display will stay on screen for approx. 60
seconds. If you do not STORE the program position it will not be held in memory.
Repeat the procedure for all the remaining program
positions you wish to tune, including the satellite.
Press the EXIT button to exit when you have finished.
select
the program po-
– 17 –
GENERAL ADJUSTMENTS
SPECIFIC INFORMATIONS
THIS PAGE IS
INTENTIONALLY LEFT
BLANK.
– 18 –
CIRCUIT BLOCK DIAGRAM
– 19 –
MICON TMP88CS38N
– 20 –
MECHANICAL DISASSEMBLY
A201
SCREWS
KK52
KK53
Holder
3pcs
SCREW
KK20
Shild
A401
B205
B207
A364
Rear
A402
SCREW 11pcs
(B205)
SCREW
3pcs
A263
A262
A266
(A271)
A264
A202
SCREW 4pcs
A282
A271
SCREW
UB01
K903
SCREW
4pcs
SCREW 2pcs
QK01
Front
A271
"ENGINE PART"
– 21 –
K901
(K901)
SCREW 2pcs
– 22 –
CHASSIS AND CABINET REPLACEMENT PARTS LIST
WARNING: BEFORE SERVICING THIS CHASSIS, READ THE, “SAFETY PRECAUTION” AND “PRODUCT
SAFETY NOTICE” ON PAGE 3 OF THIS MANUAL.
CAUTION: The international hazard symbols “” in the schematic diagram and the parts list designate com-
ponents which have special characteristics important for safety and should be replaced only with types identical to
those in the original circuit or specified in the parts list. The mounting position of replacements is to be identical with
originals. Before replacing any of these components, read carefully the PRODUCT SAFETY NOTICE. Do not
degrade the safety of the receiver through improper servicing.
NOTICE:
•
The part number must be used when ordering parts, in order to assist in processing, be sure to include the Model
number and Description.
•
The PC board assembly with * mark is no longer available after the end of the production.