How it Works
Toshiba
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20A42
Owner's Manual
18 pgs15.84 Mb0
Schematic
38 pgs2.34 Mb0
Service Manual
35 pgs2.28 Mb0
User Manual
36 pgs5.04 Mb0

Toshiba 20A42 Schematic

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Page 1
SERVICE MANUAL
DOCUMENT CREATED IN JAPAN, Jun., 2002
COLOR TELEVISION
FILE NO. 050-200209
20A42
Page 2
SERVICING NOTICES ON CHECKING
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.
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.
Page 3
GENERAL SPECIFICATIONS
G-1 TV CRT CRT Size / Visual Size 20 inch / 508.0mmV
G-2 Tuning Broadcasting System US System M
G-3 Power Power Source AC 120V AC 60Hz
G-4 Regulation Safety UL
G-5 Temperature Operation +5oC ~ +40oC
G-6 Operating Humidity Less then 80% RH
System CRT Type Normal
Color System NTSC Speaker 2Speaker
Sound Output MAX
NTSC3.58+4.43 /PAL60Hz No
System Tuner and System 1Tuner
Receive CH Destination Ohers
Intermediate Picture(FP) 45.75MHz Frequency Sound(FS) 41.25MHz
Preset CH No Stereo/Dual TV Sound Yes Tuner Sound Muting Yes
Power Consumption at AC
Protector Power Fuse Yes
Deflection Magnetic Field BV/BH +0.45G/0.18G
Position Front Size Impedance 8 ohm
10%(Typical)
Tuning System F-Synth Input Impedance VHF/UHF 75 ohm
CH Coverage A - I, J - W, W+1 - W+84
FP-FS 4.50MHz
DC
Stand by (at AC) Per Year
Radiation FCC X-Radiation DHHS
Storage -20oC ~ +60oC
90 degree
2 x 4.7 Inch
2.5+2.5 W
2.0+2.0 W
90 W at AC 120 V 60 Hz 5 W at AC 120 V 60 Hz
-- kWh/Year
2 - 69, 4A, A-5 - A-1,
Page 4
GENERAL SPECIFICATIONS
G-7 On Screen Menu Yes
G-8 OSD Language English French Spanish
G-9 Clock and Sleep Timer Max Time 120 Min
Display Menu Type Character
Timer Step
On/Off Timer Program(On Tim / Off Tim) Wake Up Timer Timer Back-up (at Power Off Mode) more than -- Min Sec
Picture Yes
Contrast Yes Brightness Yes Color Yes Tint Yes Sharpness Yes
Audio Yes
Bass Yes Treble Yes Balance Yes BBE On/Off No Stable Sound On/Off No
CH Set Up Yes
TV/CABLE(CATV) Yes Auto CH Memory Yes
Add/ Delete Yes Lock Yes Language Yes V-chip Yes
CH Label No
Favorite CH No
Color Stream DVD/DTV No Control Level Yes
Volume Yes
Brightness Yes
Contrast Yes
Color Yes
Tint (NTSC Only) Yes
Sharpness Yes
Tuning No
Bass Yes
Treble Yes
Balance Yes
Back Light No Stereo,Audio Output,SAP Yes Video Yes Color Stream No Channel(TV/Cable) Yes CH Label No Game Timer Yes Sleep Timer Yes Sound Mute Yes V-chip Rating Yes
OSD Language Setting English
10 Min
No No
Page 5
GENERAL SPECIFICATIONS
G-10 Remote Unit RC-EH
Control Glow in Dark Remocon Yes
Format Toshiba Custom Code Power Source Voltage(D.C) 3V
UM size x pcs UM-4 x 2 pcs
Total Keys Keys Power Yes
1 Yes
2 Yes
3 Yes
4 Yes
5 Yes
6 Yes
7 Yes
8 Yes
9 Yes
0 Yes
100 No
CH Up Yes
CH Down Yes
Volume Up Yes
Volume Down Yes
TV/Caption/Text Yes
CH1/CH2 Yes
TV/Video(TV/AV) Yes
CH RTN/CH ENT(Quick View) Yes
Sleep Yes
RE Call(Call) Yes
Reset Yes
Menu Yes
Enter Yes
Mute Yes
Exit No
MTS(Audio Select) Yes
Set + Yes
Set - Yes
Multi Brand Keys CH Up(VCR) No
CH Down(VCR) No
Pause/Still No
TV/VCR(VCR) No
Code No
FF No
Rew No
Rec No
Play No
Stop No
TV No
VCR No
Cable No
40-BF h
28 Keys
Page 6
GENERAL SPECIFICATIONS
G-11 Features Auto Degauss Yes
G-12 Accessories Owner's Manual Language English /French
Auto Shut Off Yes Canal+ No CATV Yes Anti-theft No Rental No Memory(Last CH) Yes Memory(Last Volume) Yes V-Chip Yes
BBE No Auto Search No CH Allocation No SAP Yes Just Clock Function No CH Label No VM Circuit No Full OSD No Premiere No Comb Filter Yes
Auto CH Memory Yes Hotel Lock No Closed Caption Yes Stable Sound No FBT Leak Test Protect Yes CH Lock Yes Video Lock Yes Game Timer Yes Energy Star No Favorite CH No
Remote Control Unit Yes Rod Antenna No
Loop Antenna
U/V Mixer DC Car Cord (Center+) Guarantee Card Warning Sheet Circuit Diagram Antenna Change Plug Service Facility List Important Safety Instruction Dew/AHC Caution Sheet AC Plug Adapter Quick Set-up Sheet Battery Yes
AC Cord AV Cord (2Pin-1Pin) Registration Card (NDL Card) Yes ESP Card Yes PTB Sheet 300 ohm to 75 ohm Antenna Adapter
Type
W/ Warranty Yes
Poles
Terminal
Terminal
UM size x pcs UM4 x 2
OEM Brand
USA,ORION Type
2 Lines
No
No No No No No No No No No No No
No No No
No No
Page 7
GENERAL SPECIFICATIONS
(
)
(
)
C
dges / 6 Surfaces
G-13 Interface Switch Front Power Yes
Rear AC/DC No
Indicator Power Yes
Terminals Front Video Input
Rear Video Input(Rear1)
G-14 Set Size Approx. W x D x H (mm) G-15 Weight Net (Approx.)
G-16 Carton Master Carton
Gift Box Yes
Drop Test
Container Stuffing
G-17 Cabinet Material Cabinet Front PS 94V0 DECABROM
System Select No
Main Power SW No
Sub Power No
Channel Up/Reset Yes
Channel Down/Enter Yes
Volume Up/Set Up Yes
Volume Down/Set Down Yes
MENU=Volume Up+Volume Down Yes
TV/CATV Selector No
Degauss No
Main Power SW No
Stand-by No
On Timer No
Audio Input
Other Terminal
Video Input(Rear2)
Audio Input(Rear1)
Audio Input(Rear2)
Video Output
Audio Output
Euro Scart
Color Stream
Diversity No
Ext Speaker No
DC Jack 12V(Center +) No
VHF/UHF Antenna Input
AC Outlet No
Gross (Approx.) 22.1kg
Content
Material
Dimensions W x D x H(mm)
Description of Origin
Material Double/Brown
Dimensions W x D x H(mm)
Design As per Buyer's
Description of Origin Yes
Height (cm) 46
Cabinet Rear PS 94V0 DECABROM
RCA RCA x 2 Head phone RCA
RCA x 2
F Type 590 x 492 x 446.5
18.6kg
----
-- x -- x --
658 x 575 x 529
Natural Dropping At 1
288
--
E
No
No No No No No
41.0 lbs
48.7 lbs No Sets /--
No
Sets/40' container
orner / 3
Page 8
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
Page 9
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
Page 10
DISASSEMBLY INSTRUCTIONS
INSTALLATION
Take care of the polarity of new IC and then install the new
1. 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. sliding to the lower position of the IC leads. (Refer to Fig. 2-6.)
Solder temporarily
Fig. 2-5
When bridge-soldering between terminals and/or the
4. soldering amount are not enough, resolder using a Thin-tip 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 IC
5. 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
Supply soldering from upper position to lower position
Fig. 2-6
Absorb the solder left on the lead using the Braided Shield
3. Wire. (Refer to Fig. 2-7.)
NOTE
Do not absorb the solder to excess.
Soldering Iron
IC
Braided Shield Wire
Fig. 2-7
Page 11
SERVICE MODE LIST
This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter the Service Mode, press both set key and remote control key for more than 1 second.
Set Key
VOL. (-) MIN
VOL. (-) MIN
VOL. (-) MIN
VOL. (-) MIN 8
VOL. (-) MIN
Remocon Key
0
1
6
9
Releasing of V-CHIP PASSWORD and LOCK PASSWORD. Initialization of the factory.
NOTE:
POWER ON total hours is displayed on the screen. Refer to the "CONFIRMATION OF HOURS USED".
Can be checked of the INITIAL DATA of MEMORY IC. Refer to the "WHEN REPLACING EEPROM (MEMORY) IC".
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).
Do not use this for the normal servicing. If you set a factory initialization, the memories are reset such as the channel setting, and the POWER ON total hours.
Operations
CONFIRMATION OF HOURS USED
POWER ON 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".
1.
Set the VOLUME to minimum.
2.
Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 1 second.
3.
After the confirmation of using hours, turn off the power.
ADDRESS DATA
INIT 00 08 CRT ON 0010
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)
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.
INI
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F
00 44 20 0C 4B 4B 9B
08 60 C9 0A 09 B3 24 6B 8B 00 62 26 27 67 28 68 29 69 4A10 25 6A 4B 6B 4C 6C 4D
6D 4F 6F 50 70 51 71 52 7220 4E 53 73 54 74 55 75
56 57 57 77 77 58 58 78 7830 76 59 59 79 79 5A 5A
7A 5B 5B 7B 7B 5C 5C 7C 7C40 7A 5D 5D 5D 7D 7D 7D
Table 1
1.
Enter DATA SET mode by setting VOLUME to minimum.
2.
Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 1 second. ADDRESS and DATA should appear as FIG 1.
3.
ADDRESS is now selected and should "blink". Using the SET +/- 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 SET +/- 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.
Page 12
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
In the condition of NO indication on the screen.
1.
Press the VOL. DOWN button on the set and the Channel button (9) on the remote control for more than 1 second to appear the adjustment mode on the screen as shown in Fig. 1-1.
TV
00 OSD 15
Fig. 1-1
Use the Channel UP/DOWN button or Channel button (0-
2.
9) on the remote control to select the options shown in Fig. 1-2.
Press the ACTION button on the remote control to end
3.
the adjustments.
2. BASIC ADJUSTMENTS
2-1: CONSTANT VOLTAGE
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.
Connect the digital voltmeter to the TP402.
5.
Adjust the VR502 until the digital voltmeter is 130 ± 1V.
2-2: RF AGC
Place the set with Aging Test for more than 15 minutes.
1. Receive the VHF HIGH (63dB).
2. Connect the digital voltmeter to the TP001.
3. Activate the adjustment mode display of Fig. 1-1 and
4. press the channel button (02) on the remote control to select "RF.AGC". Press the VOL. UP/DOWN button on the remote control
5. until the digital voltmeter is 2.5 ± 0.05V.
2-3: CUT OFF
1.
Adjust the unit to the following settings. R.DRIVE=10, B.DRIVE=10, R.BIAS=64, G.BIAS=64, B.BIAS=64, BRIGHTNESS=124, CONTRAST=65.
2.
Place the set with Aging Test for more than 15 minutes.
3.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (01) on the remote control to select "CUT OFF".
4.
Adjust the Screen Volume until a dim raster is obtained.
2-4: WHITE BALANCE NOTE: Adjust after performing CUT OFF adjustment.
1.
Place the set with Aging Test for more than 10 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 (10) 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”, “R. DRIVE” or “B. DRIVE”.
6.
Adjust the VOL. UP/DOWN button on the remote control to whiten the R. BIAS, G. BIAS, B. BIAS, R. DRIVE, and B. DRIVE at each step tone sections equally.
7.
Perform the above adjustments 5 and 6 until the white color is looked like a white.
FUNCTION
NO.
OSD H
00
CUT OFF
01
RF AGC
02
VIF VCO
03
H.VCO
04
H.PHASE
05
V.SIZE
06
V.SHIFT
07
R.DRIVE
08
B.DRIVE
09
R.BIAS
10
G.BIAS
11
B.BIAS
12
BRIGHT CENT
13
BRIGHT MAX
14
BRIGHT MIN
15
FUNCTION
NO.
CONTRAST CENT
16
CONTRAST MAX
17
CONTRAST MIN
18
COLOR CENT
19
COLOR MAX
20
COLOR MIN
21
TINT
22
SHARPNESS
23
FM LEVEL
24
LEVEL
25
SEPARATION 1
26
SEPARATION 2
27
TEST MONO
28
TEST STEREO
29
X-RAY TEST
30
Fig. 1-2
2-5: FOCUS
1.
Receive a broadcast.
2.
Turn the Focus Volume fully counterclockwise once.
3.
Adjust the Focus Volume until picture is distinct.
Page 13
ELECTRICAL ADJUSTMENTS
2-6: VIF VCO
Place the set with Aging Test for more than 15 minutes.
1. Receive the monoscope pattern.
2. Connect the digital voltmeter between the pin 5 of
3. CP601 and the GND. Activate the adjustment mode display of Fig. 1-1 and
4. press the channel button (03) on the remote control to select "V.VCO". Press the VOL. UP/DOWN button on the remote control
5. until the digital voltmeter is 2.5V.
2-7: HORIZONTAL PHASE
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 (05) on the remote control to select "H.PHAS".
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.
2-8: VERTICAL SHIFT
Receive the monoscope pattern.
1. Using the remote control, set the brightness and contrast
2. to normal position. Check if the step No. V. SHIFT is "00".
3. Adjust the VR401 until the horizontal line becomes fit to
4. the notch of the shadow mask.
2-9: 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 (06) on the remote control to select "V.SIZE".
4.
Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on upside and downside becomes 10 ± 2%.
5.
Receive a broadcast and check if the picture is normal.
2-10: VERTICAL LINEARITY NOTE: Adjust after performing adjustments in section 2-9.
After the adjustment of Vertical Linearity, reconfirm the Vertical Position and Vertical Size adjustments.
Receive the monoscope pattern.
1. Using the remote control, set the brightness and contrast
2. to normal position. Adjust the VR402 until the SHIFT quantity of the OVER
3. SCAN on upside and downside becomes minimum.
2-11: OSD HORIZONTAL
1.2.Activate the adjustment mode display of Fig. 1-1. Press the VOL. UP/DOWN button on the remote control until the difference of A and B becomes minimum. (Refer to Fig. 2-1)
TV
00 OSD 15
BA
2-12: BRIGHT CENT
1.
Receive the black 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 (13) on the remote control to select "BRI.CENT".
4.
Press the VOL. UP/DOWN button on the remote control until the screen begin to shine.
5.
Receive the black pattern*. (Audio Video Input)
6.
Press the TV/VIDEO button on the remote control to set to the AV mode. Then perform the above adjustments 2~4.
*The Black Pattern means the whole black raster signal.
Select the "RASTER" of the pattern generator, set to the OFF position for each R, G and B.
2-13: SUB TINT/SUB COLOR
1.
Receive the color bar pattern. (RF Input)
2.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (22) on the remote control to select "TINT".
3.
Connect the oscilloscope to TP024.
4.
Press the VOL. UP/DOWN button on the remote control until the section "A" becomes as straight line.
(Refer to Fig. 2-2)
5.
Press the channel button (19) on the remote control to select "COL. CENT".
6.
Connect the oscilloscope to TP022.
7.
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.
8.
Press the VOL. UP/DOWN button on the remote control until the red color level is adjusted to 110% of the white level. (Refer to Fig. 2-3)
9.
Receive the color bar pattern. (Audio Video Input)
10.
Press the TV/VIDEO button on the remote control to set to the AV mode. Then perform the above adjustments 2~8.
Fig. 2-1
Page 14
ELECTRICAL ADJUSTMENTS
"A"
White 100% Red 110%
2-14: SUB CONTRAST
Activate the adjustment mode display of Fig. 1-1 and
1. press the channel button (17) on the remote control to select "CONT.MAX". Press the VOL. UP/DOWN button on the remote control
2. until the contrast step No. becomes "65". Receive a broadcast and check if the picture is normal.
3. Press the TV/VIDEO button on the remote to set to the
4. AV mode. Then perform the above adjustment 1~3.
2-15: SEPARATION 1, 2 Please do the method (1) or method (2) adjustment. Method (1)
1.
Set the multi-sound signal generator for each different L­ch and R-ch frequency (Ex. L-ch=2KHz, R-ch=400Hz) and receive the RF.
2.
Connect the oscilloscope to the pin 6 of CP601 and pin 7 of CP601.
3.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (26) on the remote control to select “SEP 1”.
4.
Press the VOL. UP/DOWN button on the remote control to adjust it until the audio output wave becomes a fine sine wave.
5.
Press the CH UP button once the set to “SEP 2” mode. Then perform the above adjustment 4.
Fig. 2-3
Fig. 2-2
Method (2)
1.
Set the multi-sound signal generator L-ch=1KHz, R-ch =Non input and receive the RF.
2.
Connect the oscilloscope to the pin 7 of CP601.
3.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (26) on the remote control to select “SEP 1”.
4.
Press the VOL. UP/DOWN button on the remote control to adjust it until the R-ch output becomes minimum.
5.
Set the multi-sound signal generator L-ch=Non input, R-ch=1KHz and receive the RF.
6.
Connect the oscilloscope to the pin 6 of CP601.
7.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (27) on the remote control to select “SEP 2”.
8.
Press the VOL. UP/DOWN button on the remote control to adjust it until the L-ch output becomes minimum.
2-16: FM LEVEL
1.
Receive the monoscope pattern (70~80dB).
2.
Connect the AC voltmeter to pin 14 of IC901.
3.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (24) on the remote control to select “FM LEVEL”.
4.
Press the VOL. UP/DOWN button on the remote control until the AC voltmeter is 75 ± 5mV.
2-17: LEVEL
1.
Receive the monoscope pattern (70~80dB).
2.
Connect the AC voltmeter to pin 6 of CP601.
3.
Activate the adjustment mode display of Fig. 1-1 and press the channel button (25) on the remote control to select “LEVEL”.
4.
Press the VOL. UP/DOWN button on the remote control until the AC voltmeter is 100 ± 1mV.
2-18: Confirmation of Fixed Value (step No.)
Please check if the fixed values of the each adjustment items are set correctly referring below.
NO.
FUNCTION
04
H VCO
14
BRIGHT MAX
15
BRIGHT MIN
16
CONT CENT
18
CONT MIN
20
COLOR MAX
21
COLOR MIN
23
SHARPNESS
28
TEST MONO
29
TEST STEREO
RF
04
170
90 40 30 65 01 35 00 00
Page 15
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.
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 color.
5.
Adjust the slant of the deflection yoke while watching the screen, then tighten the fixing screw.
DEFLECTION YOKE DEFLECTION YOKE SCREW MAGNET SCREW
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
WEDGE WEDGE
WEDGE POSITION
R G B
Fig. 3-2-a
WEDGE
Fig. 3-2-b
R G B
PURITY MAGNETS 6 POLE MAGNETS 4 POLE MAGNETS
Fig. 3-1
Page 16
ELECTRICAL ADJUSTMENTS
4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION)
CRT
FB401
VR502
CRT
CP801
CP803A
TP402
CRT PCB
CD801
CP806
J801
CP802B CP803B
J701
CRT
CP401
TP024
TP022
VR401
CP601
VR402
W055
IC901
TP001
TU001
CP802A
AC IN
L503
S501A
CP502
S501B
T501
CP1001
SPEAKER
MAIN PCB
J710
J711
J712
J1001
Page 17
BLOCK DIAGRAM
SOUND DECORDER IC IC901 AN5829S
22
21
14
VIDEO IN
J710
3
2
2
7
5
L503 DEGAUSS COIL
AC IN
VR502
+B ADJ.
23
24
2
AUDIO_L IN
J711
3
5
MEMORY IC IC199
SCL
SDA
S-24C04BDP-LA
6
F501
Q507
FEED BACK
19
18
3
AUDIO_R IN
1
Q1501
BUFFER
SW.
2 2
3
J712
4
VIDEO AMP IC IC702 NJM2234L
TH501
3
2
4
3
REAR_AV-IN
(STEREO)
J701
Q403
X-RAY
TEST SW.
IC501 LTV-817M-VB
FEED BACK
Q502
BUFFER
6
Q404
RY501
RELAY
D501~D504
RECTIFIER
Q501
SWITCHING
TONE CONTROL IC IC302 M62420SP
9
2
10 14
19
CH DOWN
VOL DOWN
POWER
CH UP
VOL UP
SW
T501
8 5
Q504
RELAY DRIVE
20
7
MICON IC IC101 OEC7072A
1 6
7
12 13 29
8
11 30
31
13
16
TU001
GREEN G
BLUE B
AUDIO MUTE
KEY1
REMOCON
KEY2
PROTECT
AV2
H. SYNC
AV1 POWER
V. SYNC
X-RAY
X-RAY_TEST
SCL 1
SDA 1
IC402 KIA7809API
9V REG IC
IF
11
RED R
H_CTL
SDA
5
SCL
34 35 36
26CVIN
9
41
38
37
14DEGAUSS_H
42
P.CON + 9V
Q1001
MUTE SW
AGC
1
4
P.CON + 9V
CF601
SAW FILTER
1
OS101
COMB FILTER IC IC1501 TC90A45F
4
1315
CHROMA IC IC601 M61250FP
51
AUDIO OUT
59
RF AGC OUT
VIF IN(1)
63 64
VIF IN(2)
23
R IN
22
G IN
21
B IN
19
INV FBP OUT
20
V PULSE OUT
26 SDA
SCL
27
FPB IN
10
POWER ON CONT
28
5
V OUT
42
VREG Vcc
71
STEREO+5V
PUMP UP
VCC
3
Q607,Q609
SW
Q608
VIF VIDEO OUT
8.7V REG OUT
AT5.7V REG OUT
P.CON 5.7V REG
-
AMP +
52
6
REG
X' TAL
R OUT G OUT B OUT
HI VCC
EXT C in
TV/Y IN
Y SW OUT
H OUT
V-OUT IC IC401 AN5522
Q604
Q605
58
34
3.579545MHz
14 15 16
44
38
41
47
32
31 11
49
REG
REG
X602
Q405
H-CTL SW
TUNER+5V
IC1001 AN7522
8
SOUND
9
AMP IC
6
Q606
REG
Q603
REG
Q402
H. DRIVE
Q401
H. OUTPUT
2
4 10 12
Q804
RED AMP
Q805
GREEN AMP
Q806
BLUE AMP
FB401
3 1
FBT
9
2
10
HV
4
F S
AT+5V
DY
11
Heater
10
J1001
7
2 3 5 1
68
F
RGB
7
SP1001
SP1002
CRT V801
Page 18
PRINTED CIRCUIT B OARDS
MAIN/CR T (INSE R TED PAR TS)
SOLDER SIDE
CD501
.
0
SW105
6.3A125VOR250V
F501
FH501
S501A
R500
C53
0_1
D501
R501
D504
R509
Q502
D508
D509
HS 501
IC501
D512
W171
W172
FH502
S501B
CP503
D502
C507
D528
SW104 SW103
S802X
R804
1
CP80
C501
C504
W145
D507
R450
W140
R427
C427
R432
CP401
R424
R445
Q404
Q403
D401
D405
R515_1
W136 W135
W134
W861
T401
R410
W158
W867
R115
W074
R144
D001
L101
W100
W097
W086
IC702
TP 001
R140
W077
C638
C647
W078
W075
W088
C635
C652
W109
C445
W124
W120
TU001
W801
C115
W093
W108 W107
W106
W121
W117
W116
R001
C003
C128
R114
C718
W110
W845
W082
W859
W118
W129
C002
W079
C122
IC199
W112
W066
W098
R608
W810
Q1503
W878
L1503_1
C1515
W092
R418
C417
W818
C1533
C1532
W069
W068
W067
W181
W103
W094
W091
W099
W087
W083
W081
W829 S801X
W105
W849
VR 402
W114
W113
CP601
W132
W898
C1514
Q1501
W131
W897
S802Y
W813
W138
CP1001
W151
W148
W147
W146
C1013
C446
W142
C439
C440
J701
R446
C403
C418
W154
D418
R411
R413
R433
V.PO SI
VR 401
C704
R436
R407
R406
D419
R408
IC402
C703
W851
W850
W143
Q402
W885
C1504
C1512
W803
W150
IC1001
HS 1001
C1006
IC401
W156
W153
C433
D605
R412
Q1502
C1009
W155
D412
W844
C1513
W137
R1010
C414
R420
Q1504
Q1505
W896
W085
C1005
W127
R417
W838
D404
W128
J710
W014
R113
W894
W071
W072
W005
W070
R107
C649
C125
C118
C636
C124
Q603
R638_1
C625
R607
W080
W036
W035
W034
W033
W031
C706
W027
C712
C717
W122
W111
W051
W123
W119
W115
W048
W039
W056
S804X
W011
R111
W017
C619
C624_1
R632
W049
W047
D602
W032
Q606
W007
R139
C129
X602
W053
W006
W019
W016
C330
W044
W062
L902
C702
Q405
R405
C646
W868
J711
W009
C630
R143
W848
W183
D601
CF603
R6
W023
W046
C915
C137
D611 D610
W013
W012
R110
W182
W030
9
2
S801Y
W059
W010
W001
R631_1
W020
CF604
C911
C701
R614_1
C604
L607
Q605
IC302
C910
W058
J712
W008
D615
R613
R626_1
R630_1
W018
C632
C641
Q604
W022
W842
C331
W839
C1012
Q609
D613
C605
R644
Q608
C907
W847
R627_1
C653
C618
W029
C317
J1001
R1013
R742
R1012
W865
C1011
D616
R617
W003
W004
W185
W002
D612
C603
C612
C601
C637_1
W015
C629
W028
W026
W024
C325
C301
R312_1
W038
C903
W178
W057
W055
C613
C628
W025
S803Y
C621
W831
CP802A
C329
C328
C905
C904
D603
R641
W832
S803X
CF601
C645
W869
C620
C810
C515
D505
D519
C434
CP806_1
W160
C80
W166
C516
D514
R523_1
Q503
CP803A
W174
SW101
2
D407
D411
J801_2
W167
S804Y
W165
W161
W163
W162
C531
C447
R517
C508
R409
R524
R525_1
Q506
C402
C406
W157
D526
D515
HS 401
C420
C407
W149
W141
R402
W170
D105
OS 101
R520
CP502
H501 T
C506
D503
C503
C502
R
502
R503
W870
C509
C514
D521
R543
VR 502
CP402
C443_1
FB 401
RY501
B501
W173
Q501
L501
C505
T501
W888
_A_V
C533_1
D506
C123
R802
05
8
R
R803
0
8
R
Q804
Q806
W873
W811
W846
D516
D523
R542
R504_1
Q401
R554
W891
B504
C511
C517_1
W835
2 _ 7
3
C4
D410
R421
SW102
TP 024
W876
W874
TP 022
W875
7
TP 023
Q805
W802
W871
C809
D510
W892
D408
R422
C401_1
C409
W872
C811
CP803B C P802B
W164
W814
C521
D520
R514
L401
TP 402
C448
R429
R806
W808
C812
Q504
D518
W169
Page 19
PRINTED CIRCUIT BOARDS
MAIN/CRT (CHIP MOUNTED PARTS)
SOLDER SIDE
R307
R306
C327
R903
R311
R309
C321
C320
R308
C303
C315
C322
C323
IC901
C316
C908
C913
R310
C319
C916
C318
C332
C912
C914 C917
C918
R904
Q902
R902
R002
Q901
R004
C007
R901
R142
R141
R1015
R437
R1003
C1001
R1001
C724
R711
R708
C723
R709
R512
R534
R508
R505
C513
Q507
R506
C522
R507
R532
R513
0
R533
C519_1
C512
W817
C648_1
R606
R609
R605
R643
C602
C607
C606 C634
R601
R602
R622
R615
C655
1
Q607
C623
R734
R628
49
IC601
17
R625
R619
R733
C405
R611
C639
33
C140 R636
R404
R639
R123
R102
R122
R125
R131
C622
R137
R138
R103
R635
R124
R109
C616
R120
R136
R104
R121
R621
R105 R106
IC101
R633
R642R646
C609
R127
R112
R129
R134
R119
C113
C138
C104
C120
R108
C103
R130
C114
C121
R1523
R1014
W187
W893
R1002
C1530_1
R1516
R1515
R1512
R1522
R1505
R1507
W895
R1514
R1504
R1501
R1517
W186
R1508
R1511
C1003
Q1001
IC1501
C1510
C1004
C1517
C1509
C1508
C1523
C1002
C1516
R1506
C1519 C1518
C1511
R1513
R1503
R1502
R117
R128
C801 R814
R126
R816
R101
W879
W833
R809
R813
W880
R811
R815
W899
R135
Page 20
ABC D E F G H
MICON/TUNER SCHEMATIC DIAGRAM
8
7
6
5
FROM/TO DEFLECTION/CRT
TO AV
4
3
2
1
(MAIN PCB)
TU001 ENV56DB6G3
BTL
BPL
V.S
SDA
IF 11
10
14 15
0
0
R143
R111
47K 1/4W
R123
4.7K R122
4.7K R121
4.7K
R120 4.7K
R105
R106
3.3K
R134 470
C138
560P CH
C121 220P CH
C103
R108 1K
1006.3V YK
C128
W801
NC
10K 1/4W
C140
0.001 CH
R136
100
R002
100
R139 100 1/4W
3
4
C120
0.001 B R130
1K
C104
0.01 B
470P CH
0.04
0.04
2.2
5.02
5.02
5.06
0
5.01
L101
2.7uH
10K
2.24
2.3
NC
0.08
R126
2.7K
SW103
SKHVBED010
25/27 VOL UP
110111213141516171819 22021
AUDIO MUTE
EXT_MUTE
3
STANDBY_H
4
VOLUME
56789
AFT
KEY1
0
KEY2
5
X-RAY
REMOCON
0
TRAP_OFF(ON_TIMER)
X-RAY_TEST
0
AV2
0
AV1
0
DEGAUSS_H
P.FAIL
0
OSC2
0
OSC1
0
CNVSS
Xin
Xout
VSS
25/27 CH DOWN
IC101 OEC7072AMICON IC
SW102
SKHVBED010
R128
560
H_CTL
PROTECT
I2C_OFF
SYNC
H.SYNC
V.SYNC
BLUE B
GREEN G
RED R
BLANK
CLOCK CONT
SDA1
SCL1
POWER
FSC IN
RESET
CVIN
V.HOLD
HLF
FILT
VCC
20 CH DOWN
C118
4706.3V YK
SW101
25/27 CH UP
R107
47K 1/4W
0.035.02
0.01
5.00
40 41 42
0.76
4.17
4.89
0
0
0
0
5.02
4.92
0.66
30 31 32 33 34 35 36 37 38 39
5.02
5.02
0.069
0
0.15
0.18
0.928
22 23 24 25 26 27 28 29
4.9
SKHVBED010
R101
RED LED
POWER ON
D105
SLR-342VCT32
OS101
RPM7138-H5
VoutB+GND 123
0
4.8
4.9
1050V YK
C123
TO SOUND
AUDIO_MUTE
GND
100
R117
R115
X-RAY
X-RAY_TEST
GND AV2
AV1 SCL
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
47K 1/4W
R140
10 1/4W
R135 270
R125
2.2K
R138
2.2K
R112
2.2K R113
2.2K 1/4W
R114
10K 1/4W
20/25/27 POWER
W899
15P CH
560
SW105
SKHVBED010
R109
47K
S802X
C113
C114
15P CH
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
SW104
SKHVBED010
25/27 VOL DOWN
R131
100
R127
2.7K
1
W845
R144
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
7
8
9
0
NC
4.9
30.0
C007 0.022 B
D001 MTZJ33B
R137
100
3.3K
2
C124
0.1 B
1M
R129
C122
150V KA
CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
SCL 4
5
6
NC
4.8
4.8
4706.3V YK
C002
R142
270
R141
AGC
ADRES
2
3
1
12 13
NC
NC
C003
4.6
6.2
1.3 NC
4.750V YK
R004
TP001
390K
1K 1/4W
270
680
R102
R103
4.84.8 4.90
5678
SCL
SDA
VSS
E2
0000
ARESINCE THESE PARTS MARKED BYCAUTION:
W810
R110
C137
0.150V KA
680
680
4.7K
R104
R124
C115
0.47 50V KA
MODE
IC199
MEMORY IC
S-24C04BDP-LA
E0 VCC
E1
1234
ABC D E F G H
ACCESSORY
BT001
R03(AB)E_20_T
TM101
RC-EH030
C129
0.150V KA
R119
BT002
R03(AB)E_20_T
C125
0.150V KA
1K
DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
R001
1K 1/2W
ETANTLES PIECES REPAREES PAR UNATTENTION:
R.SIGNAL G.SIGNAL B.SIGNAL
DEFLECTION SIGNAL TUNER VIDEO SIGNAL
FROM/TO POWER
AT+40V POWER_FAIL
GND
DEGAUSS_H
FROM/TO CHROMA
STEREO+5V AGC GND
IF TUNER+5V
PROTECT AFT
SYNC HD
VD I2C_OFF
OSD_B OSD_G
OSD_R
OSD_BLK
SDA
CLOCK_CONT
POWER FSC
RESET
AT+5V Y_VIDEO
FROM/TO SOUND
SCL SDA
FROM/TO DEFLECTION/CRT
AT+5V H_CTL
GND
PCB010 TMB540
8
7
6
5
4
3
2
1
Page 21
ABC D E F GH
CHROMA SCHEMATIC DIAGRAM
8
FROM POWER
(MAIN PCB)
8
7
6
5
4
3
2
1
UNREG+12V
GND
TO SOUND
STEREO+5V
CF604
TPSRA4M50C00-A0
R609
180
W831
C620
4.750V YK
0.0068 B
C655
R615
470
C605
0.4750V KA
SAW FILTER
CF601
TSF5229P3
GNDOUTOUTIN
1234
TU_AUDIO_OUT
GND AUDIO_OUT_L
FROM/TO MICON/TUNER
STEREO+5V
RESET
Y_VIDEO
AT+5V
TUNER+5V
AGC
IF
AFT
PROTECT
GND
HD
POWER
OSD_B
OSD_BLK
OSD_G
VD
OSD_R
SYNC
I2C_OFF
SDA
SCL FSC
CLOCK_CONT
CAUTION: DIGITAL TRANSISTOR
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
KTC3203_Y
R622
C629
C618
R629
12 2W
RED
Q608
L607
15uH
68
R644
47
100P CH
100P CH
REG
C635
3.579545MHz
2.893.25002.841.965.62.598.763.17
333435363738394404142434445464748
SCL
SDA
R IN
G IN
B IN
G OUT
2.0
13
R625 2.2K
KTC3203_Y
4.9
4716V YK
30 31 32
5
2.6
5.02
4.92
4.92
0
2.88
2.86
2.93
20 21 22 23 24 25 26 27 28 29
4.88
4.06
0.84
17 18 19
3.69
D612 MTZJ12B
Q603
8.8
5.5
100
R635
5.67
2.77
4.74
R607
HD
R627_1 100 1/4W
R630_1
R631_1 100 1/4W
R617 220 1/4W
R638_1
1M 1/4W
C639
0.01 B
8.2K 1/4W
R646 27K
R642
11E1-EIC
6.8K
VD
SYNC
R636
W848
100 1/4W
R608
C638
1016V KANP
D605
120 1/2W
C652
8
1SS133
D615
C647
150V YK
1SS133
1050V KA
CLOCK_CONT
9
D616
1SS133
R613
56 1/4W
C609
0.01 B
OSD_B
220P B
R621 10K
OSD_BLK
OSD_G
C636
OSD_R
7.97
0
SWITCHING
Q607
KRA102SRTK
7.95
C649
SWITCHING
7.92
2.250V
Q609
0.02
KTC3198
0
KA
TEST POINT
CP601
173979-7
AUDIO_OUT_R
AUDIO_OUT_L
INT.MONI
IIC_OFF
SDA
SCL
GND
7
6
5
4
3
2
1
7
33K
D613
6
REG
Q604
KTC3203_Y
4.9 7.2
7.20
5.5
R643
10M
R606
10K
C634
0.01 B
C648_1
W817
REG
Q605
KTC3203_Y
7.2
5.5
5.5
100
C630
R628
C641 100P CH R611 10K
C604 150V KA
C623 100P CH
C632
0.150V YK
C602 0.01 B
C606 0.01 B
C628 0.150V KA
S803X
C653
0.1 B
0.01 B
W832
C621
0.01 B
0
4716V YK
REG
Q606
KTC3203_Y
7.9
11.3
8.5
1016V KA
C619
R639
CF603
SFSRA4M50CF00-A0
8.66 8.03
1.59
5.75 49
2.26 50515253545556575859
QIF OUT
2.32
AUDIO OUT
2.3 AUDIO BYPASS
3.158 EXT AUDIO IN
3.07 FM DIRECT OUT
3.2 VIF VCO F/B
0
VIF GND
0
VIF GND
2.28 VIF VIDEO OUT
4.7 RF AGC OUT
2.25 VIF APC FILTER
6061626364
2.59 IF AGC FILTER2
2.59 IF AGC FILTER1
1.53
VIF IN (1)
1.53
1 101112
2
4.91 2.21 4.94 3.84 2.11 3.53 0 0 0 0.72 2.3
C613
163V MKT
1006.3V YK
C601
S803Y
100
C637_1
NC
VIF Vcc
3
D602
NCNC
0 0.51
NC
47 8.7V REG OUT
48 LIMITER IN 49 P.Con5.7V REG
64 VIF IN (2)
1 V RAMP CAP
2 AFT OUT
VIF Vcc
10
0.01 B
R632
D601
5
Hi Vcc
V OUT
220 1/2W
MTZJ8.2B
1SS133
C646
R641
D603 MTZJ6.8B
C624_1 150V YK
150V YK
VREG Vcc
AUDIO ATT FILTER
CHROMA IC
AFC FILTER
V RAMP FEEDBACK
6
789
22K 1/4W
150V KA
C603
C607 0.01 B
R605 4.7K
TV/Y IN
DEF GND
C645
VIDEO CHROMA Vcc
IC601
M61250FP
DEF GND
R626_1
4716V YK
5.6
EXT C in
VIDEO CHROMA Vcc
34 X’TAL 33 ACL/ABCL 32 AT5.7V REG OUT
17 H VCO F/B 16 B OUT
H OUT
FBP IN
R601
1K
22K 1/4W
100010V YK
C612
1K
R602
150V KA
C625
C622
0.022 B
R633
8.2K
C616
22P CH
X602
VIDEO/CHROMA GND
VIDEO/CHROMA GND
CHROMA APC FILTER
POWER ON CONT
CLOCK CONT
V PULSE OUT
INV FBP OUT
INTELLIGENT MONI
NC
R OUT
STRAT UP Vcc
13 14 15 16
0.027 2.0 2.08.03
NC
11
12
MTZJ12B
2.2K 1/4W
D611
D610 MTZJ12B
R619 2.2K
R614_1
Y SW OUT
MCU RESET
fsc OUT 1
FAST BLK
R.SIGNAL
G.SIGNAL
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
ARESINCE THESE PARTS MARKED BYCAUTION:
DANGEREUSES AN POINT DE VUE SECURITE N’UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
ETANTLES PIECES REPAREES PAR UNATTENTION:
B.SIGNAL DEFLECTION SIGNAL
TUNER VIDEO SIGNAL
ABC D E F GH
TO AV
TU_VIDEO
GND
FROM/TO COMB/FILTER
Y_IN
C_IN
STEREO+5V
FSC
GND
FROM SOUND
AUDIO_OUT_R
FROM/TO DEFLECTION/CRT
V_OUT
ABCL
V_FEEDBACK
GND
H_OUT
H_SYNC
B.OUT
G.OUT
R.OUT
CLAMP
PCB010 TMB540
7
6
5
4
3
2
1
Page 22
(MAIN PCB)
(CRT PCB)
FROM/TO CHROMA
8
7
6
5
4
3
2
1
ABC D E F GH
CLAMP
G.OUT
R.OUT
B.OUT
V_FEEDBACK
V_OUT
ABCL
H_SYNC
H_OUT
GND
FROM/TO MICON/TUNER
X-RAY
X-RAY_TEST
GND
H_CTL
AT+5V
TO SOUND
P.CON+9V
GND
C405
0.1 F
TO AV
P.CON+9V
FROM POWER
+B
GND
H_DV_+B
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
R405
10K 1/4W
H.DRIVE
KTC4217
R404
0.031
5.03
ABC D E F GH
HS401
763WAA0232
C439
SL
22P500V
Q402
0.3
220
0.447
H-CTL SW
Q405
KTC3198
W838
W844
27.0
0
C440
R446
DEFLECTION/CRT SCHEMATIC DIAGRAM
CP802A B2013H02-5P
CLAMP
GND
G.OUT
R.OUT
4701/2W
V.POSI.
VR401
470 1/2W
METAL
1K
B.OUT
CP803A B2013H02-4P
HEATER
NC
180V
D418
MTZJ30B
D419
MTZJ30B
C433
47035V YK
C420
MKT
0.1100V
R421
68K 1/4W
CAUTION: DIGITAL TRANSISTOR
IC401 AN5522V-OUT IC
THERMAL
+
AMP
­GNDVCC
03.9 26.1 2.2 13 26 R437 1.2K
10035V YK
39K+-1%
R417
SWITCHING
0
Q404
KRC102MAT
X-RAY TEST SW.
R424
17
0
R427
100 1/4W
C407
27P SL
D401
PROTECTION
R418
V.LIN.
22K +-1%
Q403
KRA104MAT
R409
15K +-1%
114.0
0
D405
MTZJ6.2B
1SS133
C447
47016V ZL
3.9
18
W849
C417
R445
150K
47K
VR402
150V YK
C434
C437_2
C443_1
C401_1
220P500V B
R422
6.8K 1/2W +B
TP402
D408
1N4937
1/2W
R420
15K +-1%
METAL
FHS
0.47200V
003P-2100
0.00751.5KV MPP
C409
100P500V B
2250V YK
ELH5L4113
CP402
D410
R432
R407
L401
R402
1K 1W
C402
0.0012KV R
1N4937
680 1/2W
2.2 1/2W
R436
R410
C418
C448
22250V YK
2200
25V YK
2.2 1/2W
680 1/2W
R406
C403
R411
1050V YK
C427
1 1/2W
R413
0.22100V MKT
R429
1.8
D411
1N4937
D407
1N4937
C406
0.001500V B
FB401 FQI-20B001R
289
COL
1
118.1
E180
6
115.0
B+
2
46.1
AFC
9
HEA
7.34
TER
10
0
GND
8
40.1
E12
4
63.9
E27
3
GND
0
8
E8
NC
5
22.8
CAUTION: DIGITAL TRANSISTOR
1K 1/2W
1.8K 1/2W
W885
R412
R433
2W
HV
F
S
0
GND
11
ABL
7
3.65
PUMP UP
1234567
14
C414
D412
11E1-EIC
0
D404
MTZJ5.1B
R408
15
B
0.0022500V
T401
ETH14Y46AY
1/2W
345
4.7K
C446
150V YK
9V REG. IC
IC402
KIA7809API
OUT
1W
R450
820
C445
16.0
9.6 16.1
4.7K +-1%
18K +-1%
12
H.OUTPUT
Q401
2SD2499(LBOEC1)
16
INGND
123
16.2709.0
W867
1050V YK
THE RESISTOR MARKED F IS FUSE RESISTOR.NOTE: THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP IS NON POLAR ONE.
CLAMP
GND
G.OUT
R.OUT
B.OUT
HEATER
GND
NC
180V
19
NC
1
2
3
4
5
1
2
3
4
A51LMV10X20N45
CP401
A1561WV2-A5P
5
4
3
2
1
V801
11
10
6 8
9
CD801
SM1098-009-1A
175
B G R
CP802B B2013H02-5P
1
CLAMP
2
GND
3
G.OUT
4
R.OUT
5
B.OUT
CP803B B2013H02-4P
1
HEATER
2
GND
3
NC
4
180V
CP801
1
2
FOCUS
SCREEN
PCB010 TMB540
A2361WV2-2P
1
2
CP806_1
C802
PCB110 TCB399
DANGEREUSES AN POINT DE VUE SECURITE N’UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
CLAMP
G.OUT
R.OUT
B.OUT
HEATER
GND
NC
180V
0.0012KV B
GND
8
C812
2.2250V YK
7
6
5
2.7K 1/4W
W846
W871
W802
6.34
RED AMP
Q804
KTC4217
R803
W833
C811
W874
560P CH
130.6
TP022
2W
12K
R809
R813
3.9K
330
W872
20
R802
W808
5.955.92
GREEN AMP
KTC4217
1/4W
2.7K
6.34
Q805
C810
R807
W879
W875
470P CH
130.6
TP023
R814
3.9K
W873
330
R816
22 21
R806
2W
2.7K 1/4W
12K
W811
5.92
6.34
BLUE AMP
KTC4217
C809
Q806
W880
R805
W876
560P CH
132.7
TP024
R811
3.9K
R815
330
R804
2W
12K
4
C801
330P CH
J801_2
CVT3275-5101
96.4
6.4
0
10
9
0
101.6
99.6
11
8
7
6
F
1
5
4
3
0
2
R.SIGNAL
ETANTLES PIECES REPAREES PAR UNATTENTION:
CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
ARESINCE THESE PARTS MARKED BYCAUTION:
G.SIGNAL B.SIGNAL
DEFLECTION SIGNAL
1
Page 23
ABC D E F GH
8
7
DEGAUSS COIL
L503
8R200026
6
5
AC120V_60Hz
CD501
0R415906
BLACK
4
WIDE
BLADE
WHITE
3
6.3A 125V
CAUTION:FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
2
REPLACE ONLY WITH THE SAME TYPE FUSE
6.3A 125V(F501)
ATTENTION:POUR UNE PROTECTION CONTINUE LES RISQUES D’INCEIE
N’UTOLISER QUE DES FUSIBLE DE MEME TYPE
6.3A 125V(F501)
21
A1561WV2-2P
2
1
S501A
S501B
CP502
ZPB45BL3R0A
EYF-52BC
BLACK
WHITE
TH501
FH501
D516
1SS133
RY501
ALKS321
6.3A 125V
F501
6.3A125V
51MS050L
3
EYF-52BC
CP503
FH502
12
4
RELAY DRIVE
Q504
KTC3198
0.2
0
R500
R520
1.5M 1/2W
0.6
+-10%
2.7M 1/2W
C505
34
12
0.22275V PHE840
COIL,LINE FILTER
L501
2R0A502F24Y
R515_1
10K 1/4W
C530_1
C506
KX
0.0022250V
0.1275V PHE840
C533_1
C514
POWER SCHEMATIC DIAGRAM
(MAIN PCB)
TO CHROMA
UNREG+12V
GND
T501
8135080S
131.7 8
P1
143.1 7
143.1 6
P2
173.7
12.19
15.24
R508
100
D523
1N4937
D506
MTZJ18B
FEED BACK
IC501
LTV-817M-VB
0
D508
R507
5
3
2
1
1SS133
150
6.0
34
6.0 76.20
KX
0.0022250V
C509
R506
C507
0.22 1W
330200V UP
10
R509
R502
5.6K 1/4W
D509
R503
W870
2.2M 1/4W
MTZJ22B
C519_1
180P CH
R504_1
1K 1/4W
C511
150V YK
R501
1.2 7W
C503
0.0012KV B
0.1
R543
330 2W
R505
C512
D502
D503
1K
0.039 B
RM11C-EIC
RM11C-EIC
0.047 M
D521
1SS133
D501
RM11C-EIC
C502
0.0012KV B
D504
RM11C-EIC
B501
W4BRH3.5X6X1.0X2
SWTCHING
Q501
STP5NC50FP
D
144.0
G
4.8
0.1
S
0.00152KV R
BUFFER
W888
Q502
KTC3203_Y
4.8
R542
0.22 1W
HS501
763WAA0023
0
76.40
1
2
R533
41.8
10
20.9
NC
11
9.19
12
112.6
13
0
14
0
15
12.31
16
820
1K
R532
D528
MTZJ5.6B
C515
0.001500V B
D518
AU02A-EIC
C516
4750V YK
C522
D526
D512
R513
0.033 B
0.001500V B
D519
SB290S
D505
SB290S
1SS133
MTZJ8.2B
100
R517
0.33 2W
B504
W4BRH3.5X6X1
D520
1SS133
W835
R554
1K
VR502
+B ADJ
R514
120K 1/4W
5.6K 1/4W
D507
1SS133
C501
D510
RU-4AM
C517_1
0.0012KV R
220025V YK
R523_1
47K 1/4W
C504
W814
D514
SB140-EIC
W892W891
R534
100
C513
6.3
0.1 B
6.0
FEED BACK
5.4 SWITCHING
Q507
2SC2412K
IS THE LIVE CONNECTIONCAUTION:
R524
12W
S802Y
D515
C531
PROTECT DRIVE
125.5
4.7100V YK
C508
R512
1SS133
C521
100016V YK
Q503
2SA1624
125.5
R525_1
100K
100160V YXF
0
10K 1/4W
TO DEFLECTION/CRT
W861
4.97 SAFETY SW
Q506
DTC114ES
0
0
+B
H_DV_+B
GND
TO SOUND
SOUND+B
GND
SOUND_GND
FROM/TO AV
GND
FROM/TO MICON/TUNER
DEGAUSS_H
POWER_FAIL
AT+40V
GND
8
7
6
5
4
3
2
PCB010
TMB540
CAUTION: DIGITAL TRANSISTOR
1
THE RESISTOR MARKED F IS FUSE RESISTOR.NOTE: THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP IS NON POLAR ONE.
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
DANGEREUSES AN POINT DE VUE SECURITE N’UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
ETANTLES PIECES REPAREES PAR UNATTENTION:
CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
ARESINCE THESE PARTS MARKED BYCAUTION:
1
ABC D E F GH
Page 24
ABC D E F GH
SOUND SCHEMATIC DIAGRAM
8
(MAIN PCB)
8
FROM/TO MICON/TUNER
AUDIO_MUTE
7
6
FROM DEFLECTION/CRT
5
FROM/TO AV
FRONT_AUDIO_R
FRONT_AUDIO_L
4
FROM POWER
3
SCL
SDA
GND
P.CON+9V
GND
REAR_AUDIO_R
REAR_AUDIO_L
GND
SOUND_GND
SOUND+B
GND
SOUND_GND
FROM/TO CHROMA
TU_AUDIO_OUT
AUDIO_OUT_L
STEREO+5V
AUDIO_OUT_R
BUFFER
Q901
2SA1037AK
R901
3.2
0
2.2K
2.3
BUFFER
Q902
2SA1037AK
S801X
R902
3.2
0.001 CH
2.2K
0
C1013
2.3
S801Y
26
27
C914
C912
C911
C910
10010V YK
22uH 0305
Cancel
Pilot
St.PLL
Filter
Wide Band
Expand
Spectral
0.3350V KA
C913
Filter Stereo
0.047 B
Pilot
Spectral
RMS Det
Spectral
C915
0.022 B
W842
OUT SW
Switch
(L-R)/SAP
Filter SAPout
C904
R1001
R1003
NC
2021222324
IIC Decoder
ZAPDAC
L+R Filter L+R Demod
fH.2fH Trap Filter
RMS Det
Wide Band
2.22.2
4.750V KA C907
2.250V KA
C905
68K
1050V YK
C1006
270K
1025V KA
C908
L-R DemodL-R Filter
dbx De-Emph
Vcc
0.022 B
L902
GND
2.3
AGC
Matrix
De-Emph
75us
Cancel Offset
Expand
Cancel
Wide Band
Offset
SOUND DECORDER IC
IC901 AN5829S
1 101112
220K
R903
C903
3456789
2
0 2.3 0.4 5.1 2.4 2.4 0.4 2.3 3.4
2.3 2.3
4.750V KA
25
1K
R308
4716V KA
C301
R306
4.7K
C303
R309
0.033 B
1.8K
2.250V YK
C315
+
-
+
-
2.250V KA
0.022 B
4.2
1.8K +
-
SIMAMP1
VOLAMP1
VOLAMP2
SIMAMP2
­+
1.8K
4.2 C321
0.022 B
R311
1.8K
C1012
W865W829
4.4
4.4
0.47 B
4716V KA
C316
0.47 B
3.4
VR3
S1
6.5K
6.5K S2
VR4
3.4
C323
C322
0.033 B
R1012
150 1/2W
A2502WV2-4P
SP OUT L+
SP OUT L-
SP OUT R-
SP OUT R+
C317
4.4 110
2203456789
136K
REF
R307
4.7K
22016V YK
32
M62420SP
VR1
REF REF
VR2
TONE CONTROL IC
IC302
8.9
C325
C327
0.01 B
C1011
4716V KA
136K
4.2 4.2
2.250V YK
R904
2.63.63.705.05.002.32.32.3
Filter
SAP
Demod
Noise
0.1 B
4.7M
3.7
13141516171819
Det SAP
SAP
Det
C918
0.1 B
1B
C1002
C917
0.1 B
W868
28
5.6K
R1015
R1014
0.0068 B
31
5.6K
C1003
1B
W869
IC1001 AN7522SOUND AMP IC
-+-+
1 10111223456789
6.6
3.5 0 3.5 3.9 1.3 0 1.3 6.6 3.5 0
C1004
HS1001
763WAA0131
0.0068 B
LR
C1005
0.150V KA
R1010
100K 1/4W
0.1 B
VCA
Det
Input
Filter
Noise
Filter
3.350V KA
C916
C1001
C330
R312_1
1K 1/4W
C328
C329
2.250V KA
3.5
33
VR5
S3
S4
3.3
S5
S6
3.3
CP1001
VR6
30
4
3
2
1
29
4.4
S7
6.5K
S8
4.4
150 1/2W
TONE AMP1
+
-
­+
TONE AMP2
R1013
CD1001 CH14411A
4
3
2
1
0
6.5K
0
C331
C319
100P CH
C318
3.7
3.8
I2C BUS
INTERFACE
CONTROL
LOGIC
111213141516171819
5.0
5.0
4716V YK
R310
C320
100K
C332
0.001 B
HEADPHONE JACK
J1001
MSJ-2000 7
6
2
3
4
5
1
SPEAKER
SPEAKER
100P CH
0.01 B
8 OHM SP1001
SG05K07BRA
8 OHM SP1002
SG05K07BRA
7
6
5
4
3
GND
2
R1002
47K
C1009
1
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
2.9
MUTE SW.
0
Q1001
0
150V KA
2SC2412K
CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY
PCB010 TMB540
ARESINCE THESE PARTS MARKED BYCAUTION:
DANGEREUSES AN POINT DE VUE SECURITE N’UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES
ETANTLES PIECES REPAREES PAR UNATTENTION:
AUDIO SIGNAL
2
1
ABC D E F GH
Page 25
ABC D E F GH
AV SCHEMATIC DIAGRAM
8
(MAIN PCB)
8
VIDEO_3_IN
C702
R733
1K
R734
7
W894
75
R742
C701
1K
1016V KA
1016V KA
L3_IN
R3_IN
S804X
23
HNC
23
HNC
23
HNC
6
IC702 NJM2234LVIDEO AMP IC
5
Vin1 SW1 SW2Vin2 GNDVoutV+Vin3
12345678
5.9 5.0 5.9 5.0 4.0 05.9 5.0
1016V KA
C706
MSP-213V2-432_PBSN
A_IN_L
A_IN_R
V_IN
REAR_AV-IN
(STEREO)
J701
EE
1
5
234
W851
H1 NC H1 H2
6
C717
4
W859
1016V KA
C718
1016V KA
R711
1K
R709
1K
C704
1016V KA
C703
1016V KA
C712
47010V YK
E
1
E
1
E
1
VIDEO IN(FRONT)
J710
HTJ-032-03AY
AUDIO_L IN(FRONT)
J711
HTJ-032-03AW
AUDIO_R IN(FRONT)
J712
HTJ-032-03AR
W847
W839
FROM/TO SOUND
FRONT_AUDIO_L
FRONT_AUDIO_R
REAR_AUDIO_R
REAR_AUDIO_L
GND
FROM DEFLECTION/CRT
P.CON+9V
FROM/TO POWER
GND
FROM MICON/TUNER
GND
AV2 AV1
FROM CHROMA
TU_VIDEO
GND
FROM/TO COMB/FILTER
7
6
5
4
3
C724
0.0056 B
75
C723
2
R708
0.0056 B
VIDEO_IN
P.CON+9V
GND
PCB010
TMB540
3
2
AUDIO SIGNAL
1
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
ABC D E F GH
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
TUNER VIDEO SIGNAL
1
Page 26
ABC D E F GH
COMB/FILTER SCHEMATIC DIAGRAM
C1514
10016V YK
R1513
1K
W895
1K
R1516
R1517
R1523
4.7K
(MAIN PCB)
A.GND
680
1K
W818
W850
W813
FROM/TO CHROMA
GND
STEREO+5V
FSC
C_IN
Y_IN
FROM/TO AV
P.CON+9V
VIDEO_IN
GND
8
7
6
5
4
8
C1530_1
2.0
22P CH
BUFFER
Q1502
KTC3198
2.6
C1532
1016V KANP
C1533
1050V NP
R1506
C1519
W898
C1523
0.01 B
1.5
5.1
BUFFER
Q1503
KTC3198
2.1
4.2
BUFFER
Q1504
2SA1015Y
3.5
W878
R1515
2.9 BUFFER
Q1505
KTC3198
R1522
R1514
330
1K
4.7
R1511
4.9
47
4.9
R1512
4.9
180
W893
820
B
0.01
7
W897
W803
560
R1502
6
R1501
5
BUFFER
820
Q1501
2SA1015Y
0
R1503
0 0.6
C1504
S804Y
W896
4
2.2K
0.4750V KANP
C1511
0.01 B
C1512
C1509
0.01 B
C1508
0.01 B
C1510
0.01 B
C1513
10016V YK
D.VCC D.VSS
5.2
KILLER CKin
0
TEST V.FIL
0
BIAS1
1.2
2.5
2.9
2345678
2.3
1
0
1006.3V KA
ADin
VRT
VRB
COMB FILTER IC
IC1501
TC90A45F
BIAS3
C.OUT
BIAS2
Y.OUT
A.VDDA.VSS
R1508
1K
R1507
C1515
100P CH
C1516
0.01 B
R1504
100
C1517
0.01 B
R1505
100
1K
C1518
L1503_1
10uH
180P CH
9
0
10111213141516
2.3
2.2
3.5
2.9
1.5
3.5
5.1
3
2
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
1
TUNER VIDEO SIGNAL
LUMINANCE SIGNAL
COLOR SIGNAL
PCB010 TMB540
3
2
1
ABC D E F GH
Page 27
MICON/TUNER
WAVEFORMS
1 1V 0.1µs/div
2
0.5V 20µs/div
3
200mV 20µs/div
200mV 20µs/div
7
20V 20µs/div
8
200mV 20µs/div
9
1V 20µs/div
12
1V 20µs/div13
DEFLECTION/CRT
0.5V 5ms/div
14
200mV 5ms/div
4
CHROMA
6
0.5V 20µs/div
0.5V 5ms/div
10
1V 20µs/div
11
NOTE:
The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
20V 20µs/div
15
16
2V 20µs/div
Page 28
200V 20µs/div
17
WAVEFORMS
22 50V 20µs/div
SOUND
200mV 1ms/div
29
10V 5ms/div18
19
10V 5ms/div
50V 20µs/div
20
25
0.5V 1ms/div
26 200mV 1ms/div
27
200mV 1ms/div
30 200mV 1ms/div
200mV 1ms/div
31
32
0.5V 1ms/div
21
50V 20µs/div
0.5V 1ms/div
28 200mV 1ms/div
NOTE: The following waveforms were measured at the point of the corresponding
balloon number in the schematic diagram.
33
Page 29
MECHANICAL EXPLODED VIEW
111
203
203
203
PCB110 (CRT PCB)
202
202
202
109
202
203
202
115
202
202
108
112
105
107
110
106
203
203
206
204
205
203
206
204
PCB010 (MAIN PCB)
205
102
104
103
101
Page 30
MECHANICAL REPLACEMENT PARTS LIST
Location No. TSB P/N Reference No. Description
101 AD301453 A3L701X720 CABINET,FRONT ASSY 102 BZ710039 8995034000 CORD CLIP UL CO. 103 AD301454 701WPJB692 CABINET,FRONT 104 AD301455 711WPA0170 PLATE,FRONT 105 AD301456 713WPA0204 GUIDE,REMOCON 106 AD301457 735WPA0652 BUTTON,BASE 107 AD301458 735WPBA419 BUTTON,FRAME 108 AD301488 702WPA0880 CABINET,BACK 109 AD301460 722549A080 SHEET,RATING
110 AD300007 7230006755 SHEET,CAUTION (FOR USA)
111 BZ710258 741WUA0001 SPRING,EARTH 112 BZ710260 899HV3T000 HOLDER,ANODE WIRE 115 AD301489 800WB0A001 FIBER WASHER
201 BZ710275 8121J50B54 SCREW,TAPPING(B0) GW20 5x28 202 BZ710035 8117540A64 SCREW,TAPPING(B0) TRUSS 4x16 203 BZ710031 8110630A04 SCREW,TAP TITE(P) BRAZIER 3x10 204 BZ710239 8109I30A04 SCREW,TAP TITE(B) WH7 3x10 205 BZ710019 8109630802 SCREW,TAP TITE(B) BRAZIER 3x8 206 BZ710018 8107630804 SCREW,TAP TITE(S) BRAZIER 3x8
--- AD301461 792WHA0360 PACKAGE,TOP
--- AD301462 792WHA0361 PACKAGE,BOTTOM
--- AD301463 793WCDB260 GIFT BOX
--- AD301464 A3L701X975 INSTRUCTION BOOK KIT
--- AD300022 J3I70417 REGISTRATION CARD
--- AD300023 J3I70436 ESP CARD
--- AD301343 J3L11416 IMPORTANT SAFETY INSTRUCTION
--- AD301465 J3L70101 INSTRUCTION BOOK
--- AD300812 JB5UD400 POLYBAG,INSTRUCTION(RED CAUTION)
AD300132 7230006818 SHEET,CAUTION (FOR CANADA)
Page 31
ELECTRICAL REPLACEMENT PARTS LIST
Location No. TSB P/N Reference No. Description
RESISTORS
R144 AD301201 R00106103J RC 10K OHM 1/6W or
R402 AD300043 R3X181102J R,METAL OXIDE 1K OHM 1W ! R408 AD301014 R4X5T6472F R,METAL 4.7K OHM 1/6W ! R409 AD300037 R4X5T6153F R,METAL 15K OHM 1/6W ! R424 BZ210105 R4X5T6183F R,METAL 18K OHM 1/6W ! R429 BZ210046 R6558A1R8J R,FUSE 1.8 OHM 2W ! R450 AD301429 R3X181821J R,METAL OXIDE 820 OHM 1W ! R500 BZ210080 R0G3K2275K RC 2.7M OHM 1/2W ! R501 AD300720 R5X2AE1R2J R,CEMENT 1.2 OHM 7W
R502 BZ210190 R63581R22J R,FUSE 0.22 OHM 1W ! R503 AD301430 R002T4225J RC 2.2M OHM 1/4W ! R506 AD301431 R903N8100J RC 10 OHM 1/8W ! R514 BZ210166 R002T4562J RC 5.6K OHM 1/4W ! R515 BZ210182 R002T4103J RC 10K OHM 1/4W ! R517 AD301432 R3X28AR33J R,METAL OXIDE 0.33 OHM 2W ! R520 BZ210206 R002T2155J RC 1.5M OHM 1/2W ! R524 BZ210083 R3X28A010J R,METAL OXIDE 1 OHM 2W ! R542 BZ210063 R3X181R22J R,METAL OXIDE 0.22 OHM 1W ! R543 AD301016 R3X28A331J R,METAL OXIDE 330 OHM 2W
R629 AD301433 R3X18A120J R,METAL OXIDE 12 OHM 2W
R742 AD301480 R00106750J RC 75 OHM 1/6W or
! R803 BZ210050 R3X18A123J R,METAL OXIDE 12K OHM 2W ! R805 BZ210050 R3X18A123J R,METAL OXIDE 12K OHM 2W ! R807 BZ210050 R3X18A123J R,METAL OXIDE 12K OHM 2W
AD301479 R001T6103J RC 10K OHM 1/6W
AD301481 R001T6750J RC 75 OHM 1/6W
CAPACITORS
C402 BZ110182 C03L0R713K CC 0.001 UF 2KV R
C409 AD301482 C0J0B0512K CC 100 PF 500V B or
! C414 AD301434 E02LU4101M CE 100 UF 35V
C418 BZ210176 E02LF3222M CE 2200 UF 25V ! C433 BZ110149 E02LT4471M CE 470 UF 35V ! C437 BZ110056 P447F2474J CMPP 0.47 UF 200V FHS
C443 AD301435 P4N8FK752H CMPP 0.0075UF 1.5KV ! C447 BZ210178 E62FT2471M CE 470 UF 16V ! C448 BZ110204 E0ELFD220M CE 22 UF 250V ! C501 BZ110010 E02L03222M CE 2200 UF 25V or
! C502 AD301438 C0PWB0713K CC 0.001 UF 2KV B ! C503 AD301438 C0PWB0713K CC 0.001 UF 2KV B ! C504 BZ110197 E02LU5470M CE 47 UF 50V ! C505 BZ110138 P2472B224M CMP 0.22UF 275V PHE840 ! C506 BZ110145 P2472B104M CMP 0.1 UF 275V PHE840 ! C507 AD300607 E51CGC331M CE 330 UF 200V
C514 BZ110191 C03L0R7E3K CC 0.0015UF 2KV R
C517 BZ110182 C03L0R713K CC 0.001 UF 2KV R ! C521 AD300060 E62NFB101M CE 100 UF 160V ! C530 AD301108 CD39E0MH3M CC 0.0022UF 250V ! C531 AD300925 E02LT2102M CE 1000 UF 16V ! C533 AD301108 CD39E0MH3M CC 0.0022UF 250V
C618 AD301321 CQG0CH412J CC 100 PF 50V CH or
C636 AD301483 CHG0B04H2J CC 220 PF 50V B or
C641 AD301321 CQG0CH412J CC 100 PF 50V CH or
C653 BZ110254 CQG0B0415K CC 0.1 UF 50V B or
C802 AD300078 C0JBB0713K CC 0.001 UF 2KV B
C812 AD301439 E0EL0D2R2M CE 2.2 UF 250V or
C1533 AD301485 E02E05100M CE 10 UF 50V or
AD300512 C0JTB0512K CC 100 PF 500V B
AD301436 E02LT3222M CE 2200 UF 25V
BZ110166 CQGTCH412J CC 100 PF 50V CH
AD301484 CHGTB04H2J CC 220 PF 50V B or BZ110171 CHGTB04H2K CC 220 PF 50V B
BZ110166 CQGTCH412J CC 100 PF 50V CH
BZ110254 CQGTB0415K CC 0.1 UF 50V B
AD301440 E0ELTD2R2M CE 2.2 UF 250V
AD301486 E62KT5100M CE 10 UF 50V
DIODES
D001 BZ410037 D97U03301B DIODE,ZENER MTZJ33B T-77
D105 BZ410054 0021721150 LED SLR-342VCT32
D401 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77
D404 BZ410020 D97U05R11B DIODE,ZENER MTZJ5.1B T-77 ! D405 BZ410066 D97U06R21B DIODE,ZENER MTZJ6.2B T-77
Page 32
ELECTRICAL REPLACEMENT PARTS LIST
Location No. TSB P/N Reference No. Description
DIODES
! D407 AD300731 D2WXN49370 DIODE,SILICON 1N4937 ! D408 AD300731 D2WXN49370 DIODE,SILICON 1N4937 ! D410 AD300731 D2WXN49370 DIODE,SILICON 1N4937 ! D411 AD300731 D2WXN49370 DIODE,SILICON 1N4937
D412 BZ410043 D2WT011E10 DIODE,SILICON 11E1-EIC
D418 BZ410019 D97U03001B DIODE,ZENER MTZJ30B T-77
D419 BZ410019 D97U03001B DIODE,ZENER MTZJ30B T-77 ! D501 BZ410062 D2WTRM11C0 DIODE,SILICON RM11C-EIC ! D502 BZ410062 D2WTRM11C0 DIODE,SILICON RM11C-EIC ! D503 BZ410062 D2WTRM11C0 DIODE,SILICON RM11C-EIC ! D504 BZ410062 D2WTRM11C0 DIODE,SILICON RM11C-EIC
D505 BZ410076 D2WXB290S0 DIODE,SILICON SB290S ! D506 AD300671 D97U01801B DIODE,ZENER MTZJ18B T-77
D507 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77
D508 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77 ! D509 BZ410113 D97U02201B DIODE,ZENER MTZJ22B T-77 ! D510 AD300073 D2BFRU4AM0 DIODE,SILICON RU-4AM
D512 BZ410058 D97U08R21B DIODE,ZENER MTZJ8.2B T-77 ! D514 BZ410077 D2WXSB1400 DIODE,SCHOTTKY SB140-EIC
D515 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77
D516 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77 ! D518 BZ410063 D2WTAU02A0 DIODE,SILICON AU02A-EIC
D519 BZ410076 D2WXB290S0 DIODE,SILICON SB290S
D520 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77
D521 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77
D523 AD300731 D2WXN49370 DIODE,SILICON 1N4937
D526 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77
D528 BZ410021 D97U05R61B DIODE,ZENER MTZJ5.6B T-77
D601 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77
D602 BZ410058 D97U08R21B DIODE,ZENER MTZJ8.2B T-77
D603 BZ410022 D97U06R81B DIODE,ZENER MTZJ6.8B T-77
D605 BZ410043 D2WT011E10 DIODE,SILICON 11E1-EIC
D610 AD300070 D97U01201B DIODE,ZENER MTZJ12B T-77
D611 AD300070 D97U01201B DIODE,ZENER MTZJ12B T-77
D612 AD300070 D97U01201B DIODE,ZENER MTZJ12B T-77
D613 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77
D615 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77
D616 BZ410006 D1VT001330 DIODE,SILICON 1SS133T-77
ICS
IC101 AD301322 I56F07072A IC OEC7072A
IC199 AD301441 A3L701X015 IC S-24C04BDP-LA
IC302 BZ611034 I06DF62420 IC M62420SP ! IC401 BZ611053 I01TD55220 IC AN5522 ! IC402 BZ611033 I1KA97809A IC KIA7809API ! IC501 BZ410088 0002E00610 PHOTO COUPLER LTV-817M-VB
IC601 AD301324 I06FC61250 IC M61250FP
IC702 AD301442 I0QS02234L IC NJM2234L
IC901 AD300059 I01FF58290 IC AN5829S ! IC1001 BZ611035 I0FSP75220 IC AN7522
IC1501 AD300609 I05FE90A45 IC TC90A45F
TRANSISTORS
! Q401 BZ510040 TDUU024990 TRANSISTOR,SILICON 2SD2499(LB0EC1) ! Q402 BZ510091 TCA0042170 TRANSISTOR,SILICON KTC4217(O,Y)
Q403 AD301443 TPATD03003 COMPOUND KRA104MAT
Q404 BZ510096 TNATB03005 COMPOUND TRANSISTOR KRC102MAT
Q405 BZ510069 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR) ! Q501 BZ510093 TJXG5NC500 FET STP5NC50FP ! Q502 BZ510070 TCAT032034 TRANSISTOR,SILICON KTC3203_Y-AT ! Q503 BZ510004 TA3T016240 TRANSISTOR,SILICON 2SA1624-AA
Q504 BZ510069 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR)
Q506 BZ510023 TNYTB03001 COMPOUND TRANSISTOR DTC114ESTP
Q507 BZ510002 T8YJ2412K0 TRANSISTOR,SILICON 2SC2412KT146 R,S
Q603 BZ510070 TCAT032034 TRANSISTOR,SILICON KTC3203_Y-AT
Q604 BZ510070 TCAT032034 TRANSISTOR,SILICON KTC3203_Y-AT
Q605 BZ510070 TCAT032034 TRANSISTOR,SILICON KTC3203_Y-AT
Q606 BZ510070 TCAT032034 TRANSISTOR,SILICON KTC3203_Y-AT
Q607 BZ510090 TPAAB05001 COMPOUND TRANSISTOR KRA102SRTK
Q608 BZ510070 TCAT032034 TRANSISTOR,SILICON KTC3203_Y-AT
Q609 BZ510069 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR) ! Q804 BZ510091 TCA0042170 TRANSISTOR,SILICON KTC4217(O,Y) ! Q805 BZ510091 TCA0042170 TRANSISTOR,SILICON KTC4217(O,Y)
Page 33
ELECTRICAL REPLACEMENT PARTS LIST
Location No. TSB P/N Reference No. Description
TRANSISTORS
! Q806 BZ510091 TCA0042170 TRANSISTOR,SILICON KTC4217(O,Y)
Q901 BZ510001 T6YJ1037K0 TRANSISTOR,SILICON 2SA1037AKT146R,S
Q902 BZ510001 T6YJ1037K0 TRANSISTOR,SILICON 2SA1037AKT146R,S
Q1001 BZ510002 T8YJ2412K0 TRANSISTOR,SILICON 2SC2412KT146 R,S
Q1501 BZ510034 TA5T010154 TRANSISTOR,SILICON 2SA1015Y(TPE2)
Q1502 BZ510069 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR)
Q1503 BZ510069 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR)
Q1504 BZ510034 TA5T010154 TRANSISTOR,SILICON 2SA1015Y(TPE2)
Q1505 BZ510069 TCATC31980 TRANSISTOR,SILICON KTC3198-AT(Y,GR)
COILS &TRANSFORMERS
L101 AD300121 021LA62R7K COIL 2.7 UH
L401 BZ310063 022100027A COIL,LINEARITY ELH5L4113 ! L501 AD301444 029T000100 COIL,LINE FILTER 2R0A502F24Y ! L503 BZ310033 028R200026 COIL,DEGAUSS 8R200026
L607 BZ310043 021LA6150K COIL 15 UH
L902 BZ310039 02167F220J COIL 22 UH
L1503 AD301445 021LA6100J COIL 10 UH
T401 AD300736 045013002J TRANS,HORIZONTAL DRIVE ETH14Y46AY ! T501 AD301446 048135080S TRANSFORMER,SWITCHING 8135080S
JACKS
J701 AD301038 060J431019 RCA JACK MSP-213V2-432 PBSN
J710 AD300110 060G401047 RCA JACK HTJ-032-03AY
J711 AD300111 060G401046 RCA JACK HTJ-032-03AW
J712 AD300112 060G401039 RCA JACK HTJ-032-03AR
J801 BZ614115 066C130017 SOCKET,CATHODE RAY TUBE CVT3275-5101
J1001 BZ614361 060J131015 HEADPHONE JACK MSJ-2000
SWITCHES
SW101 BZ612001 0504201T31 SWITCH,TACT SKHVBED010
SW102 BZ612001 0504201T31 SWITCH,TACT SKHVBED010
SW103 BZ612001 0504201T31 SWITCH,TACT SKHVBED010
SW104 BZ612001 0504201T31 SWITCH,TACT SKHVBED010
SW105 BZ612001 0504201T31 SWITCH,TACT SKHVBED010
VARIABLE RESISTORS
VR401 BZ210238 V1K6313BTE VOLUME,SEMI FIXED NVG6TLTAB102
VR402 BZ210237 V1K63Q4BTE VOLUME,SEMI FIXED NVG6TLTAB473
VR502 BZ210108 V116313BTC VOLUME,SEMI FIXED EVNCYAA03B13 or
AD301487 V116213BT1 VOLUME,SEMI FIXED EVN-DCAA03B13
P.C.BOARD ASSEMBLIES
PCB010 AD301447 A3L701X010 PCB ASS'Y TMB540A
PCB110 AD301448 A3L701X110 PCB ASS'Y TCB399A
MISCELLANEOUS
B501 BZ310122 024HT03563 CORE,BEADS W4BRH3.5X6X1.0X2
B504 BZ310129 024HT03564 CORE,BEADS W4BRH3.5X6X1 ! CD501 BZ614407 120R415906 CORD,AC BUSH 0R415906
CD801 BZ614175 06CU82039A CORD,CONNECTOR SM1098-009-1A
CF601 BZ613031 1029045R7G FILTER,SAW TSF5229P3
CF603 AD301328 1012T4R520 FILTER,CERAMIC SFSRA4M50CF00-A0
CF604 AD300686 1012T4R519 FILTER,CERAMIC TRAP TPSRA4M50C00-A0 ! CP401 BZ614303 069S450089 CONNECTOR PCB SIDE A1561WV2-A5P
CP402 BZ614016 069W01001A CONNECTOR PCB SIDE 003P-2100 ! CP502 AD300687 069S420110 CONNECTOR PCB SIDE A1561WV2-2P
CP503 BZ614444 069D01001A CONNECTOR PCB SIDE 003P-2100
CP601 BZ614102 0694270139 CONNECTOR PCB SIDE 173979-7
CP801 BZ614269 069S320010 CONNECTOR PCB SIDE A2361WV2-2P
CD1001 AD301449 06CH14411A CORD,CONNECTOR CH14411A
CP1001 AD301045 069S140419 CONNECTOR PCB SIDE A2502WV2-4P
CP802A BZ614276 067U005049 WIRE HOLDER B2013H02-5P
CP802B BZ614276 067U005049 WIRE HOLDER B2013H02-5P
CP803A BZ614334 067U004029 WIRE HOLDER B2013H02-4P
CP803B BZ614334 067U004029 WIRE HOLDER B2013H02-4P
EL001 BZ614043 124116281A EYE LET XRY16X28BD
EL002 BZ614044 124120301A EYE LET XRY20X30BD ! F501 BZ614125 081PC6R304 FUSE 51MS063LCC ! FB401 BZ310164 043219014F TRANSFORMER,FLYBACK FQI-20B001R
FH501 BZ614005 06710T0006 HOLDER,FUSE EYF-52BC
FH502 BZ614005 06710T0006 HOLDER,FUSE EYF-52BC
OS101 AD301048 0773071001 REMOTE RECEIVER RPM7138-H5 ! RY501 AD300114 0560V20115 RELAY ALKS321
S101 BZ614403 WCL6842038 FLAT CABLE AWM2468 AWG26 5C GRAY 420MM
S102 AD301450 WBL6032038 FLAT CABEL AWM2468 AWG26 4C BLACK 320MM ! SP1001 AD301050 070C457003 SPEAKER SG05K07BRA
Page 34
ELECTRICAL REPLACEMENT PARTS LIST
Location No. TSB P/N Reference No. Description
MISCELLANEOUS
! SP1002 AD301050 070C457003 SPEAKER SG05K07BRA ! TH501 BZ410079 DF5EL3R0A0 DEGAUSS ELEMENT ZPB45BL3R0A
TM101 AD301451 076N0EH030 TRANSMITTER RC-EH030 ! TU001 AD301052 0145100059 TUNER,VHF-UHF ENV56DB6G3
V801 AD301452 098Y210435 CRT W/DY A51LMV10X20N45
X602 BZ613004 100CT3R505 CRYSTAL HC-49/C
RESISTOR
CAPACITORS
RC................... CARBON RESISTOR
CC................... CERAMIC CAPACITOR
CE................... ALUMI ELECTROLYTIC CAPACITOR
CP................... POLYESTER CAPACITOR
CPP.................. POLYPROPYLENE CAPACITOR
CPL.................. PLASTIC CAPACITOR
CMP................... METAL POLYESTER CAPACITOR
CMPL................ METAL PLASTIC CAPACITOR
CMPP................ METAL POLYPROPYLENE CAPACITOR
Page 35
TOSHIBA CORPORATION
1-1, SHIBAURA 1-CHOME, MINATO-KU, TOKYO 105-8001, JAPAN
Page 36
SERVICE MANUAL
DOCUMENT CREATED IN JAPAN, Feb., 2003
replacing components, use only the components in the respective Electrical Replacement Parts
list (version A or B). Components are not interchangeable between versions.
COLOR TELEVISION
FILE NO. 143-200208B SUPPLEMENT
20A42
SUMMARY
This supplement serves as an update to the original Service Manual, file number 050-200209. Please refer to this Supplement in conjunction with the original Service Manual when servicing this model.
20A42 comes with 2 versions of CRT with combination support components and assemblies. The version can be identified by the alphabet behind the serial no. (Eg. 99056001B). When
MFR'S VERSION
A
B
CRT
A51LMV10X20N4
A51AEZ90X23
Page 37
CORRECTION NOTICE
ELECTRICAL ADJUSTMENTS
2-18: Confirmation of Fixed Value (step No.)
INCORRECT
NO. STEP NO.FUNCTION
23 SHARPNESS 35
Change of CRT
ELECTRICAL ADJUSTMENTS
2-18: Confirmation of Fixed Value (step No.)
MFR'S VERSION A
NO. STEP NO.FUNCTION
23 SHARPNESS 40
ELECTRICAL REPLACEMENT PARTS LIST
MFR’S VERSION A
CORRECT
STEP NO.
40
MFR'S VERSION B
STEP NO.
35
MFR’S VERSION B
REF. NO. DESCRIPTION TSB P/NPART NO.
! V801
PCB010
All parts are not interchangeable between version.
098Y210435
A3L701X010
CRT W/DY A51LMV10X20N45 AD301452
MAIN PCB ASS'Y (VERSION A) TMB540A
098Q210447 CRT W/DY A51AEZ90X23 AD302333
AD301447 A3L701X010
DESCRIPTION TSB P/NPART NO.
MAIN PCB ASS'Y (VERSION B) TMB540B
AD301447
Page 38
TOSHIBA CORPORATION
1-1, SHIBAURA 1-CHOME, MINATO-KU, TOKYO 105-8001, JAPAN
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