Toshiba 27A32 User manual

SERVICE MANUAL
COLOR TELEVISION
27A32
FILE NO. 050-200210
DOCUMENT CREATED IN JAPAN, Jul., 2002

SERVICING NOTICES ON CHECKING
6. AVOID AN X-RAY1. KEEP THE NOTICES
As for the places which need special attentions,
they are indicated with the labels or seals on the
cabinet, chassis and parts. Make sure to keep the
indications and notices in the operation manual.
3. USE THE DESIGNATED PARTS
5. TAKE CARE TO DEAL WITH THE
CATHODE-RAY TUBE
Safety is secured against an X-ray by consider-
ing about the cathode-ray tube and the high
voltage peripheral circuit, etc.
Therefore, when repairing the high voltage pe-
ripheral circuit, use the designated parts and
make sure not modify the circuit.
Repairing except indicates causes rising of high
voltage, and it emits an X-ray from the cathode-
ray tube.
Please include the following informations when you order parts. (Particularly the VERSION LETTER.)
1. MODEL NUMBER and VERSION LETTER
The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be
found at the end of the SERIAL NUMBER.
2. PART NO. and DESCRIPTION
You can find it in your SERVICE MANUAL.
HOW TO ORDER PARTS
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.
IMPORTANT
2. AVOID AN ELECTRIC SHOCK
There is a high voltage part inside. Avoid an
electric shock while the electric current is
flowing.
The parts in this equipment have the specific
characters of incombustibility and withstand
voltage for safety. Therefore, the part which is
replaced should be used the part which has
the same character.
Especially as to the important parts for safety
which is indicated in the circuit diagram or the
table of parts as a mark, the designated
parts must be used.
4. PUT PARTS AND WIRES IN THE
ORIGINAL POSITION AFTER
ASSEMBLING OR WIRING
There are parts which use the insulation
material such as a tube or tape for safety, or
which are assembled in the condition that
these do not contact with the printed board.
The inside wiring is designed not to get closer
to the pyrogenic parts and high voltage parts.
Therefore, put these parts in the original
positions.
In the condition that an explosion-proof cathode-
ray tube is set in this equipment, safety is
secured against implosion. However, when
removing it or serving from backward, it is
dangerous to give a shock. Take enough care to
deal with it.
PERFORM A SAFETY CHECK AFTER
SERVICING
7.
Confirm that the screws, parts and wiring which
were removed in order to service are put in the
original positions, or whether there are the
portions which are deteriorated around the
serviced places serviced or not. Check the
insulation between the antenna terminal or
external metal and the AC cord plug blades.
And be sure the safety of that.
(INSULATION CHECK PROCEDURE)
1.
2.
3.
4.
Unplug the plug from the AC outlet.
Remove the antenna terminal on TV and turn
on the TV.
Insulation resistance between the cord plug
terminals and the eternal exposure metal
[Note 2] should be more than 1M ohm by
using the 500V insulation resistance meter
[Note 1].
If the insulation resistance is less than 1M
ohm, the inspection repair should be
required.
[Note 1]
If you have not the 500V insulation
resistance meter, use a Tester.
[Note 2]
External exposure metal: Antenna terminal
Earphone jack

GENERAL SPECIFICATIONS
G-1 TV CRT CRT Size / Visual Size 27 inch / 676mmV
System CRT Type Normal
Deflection 102 degree
Magnetic Field BV/BH +0.45G/0.18G
Color System NTSC
Speaker 2Speaker
Position Front
Size 2.0 x 3.5 Inch
Impedance 8 ohm
Sound Output MAX 2.5 + 2.5 W
10%(Typical) 2.0 + 2.0 W
NTSC3.58+4.43 /PAL60Hz No
G-2 Tuning Broadcasting System US System M
System Tuner and System 1Tuner
Receive CH Destination Ohers
Tuning System F-Synth
Input Impedance VHF/UHF 75 ohm
2 - 69, 4A, A-5 - A-1,
CH Coverage A - I, J - W, W+1 - W+84
Intermediate Picture(FP) 45.75MHz
Frequency Sound(FS) 41.25MHz
FP-FS 4.50MHz
Preset CH No
Stereo/Dual TV Sound Yes
Tuner Sound Muting Yes
G-3 Power Power Source AC 120V AC 60Hz
DC -
Power Consumption at AC 125 W at AC 120 V 60 Hz
Stand by (at AC) 3 W at AC 120 V 60 Hz
Per Year -- kWh/Year
Protector Power Fuse Yes
G-4 Regulation Safety UL/CSA[From '02 JUL O/R]
Radiation FCC/IC [From '02 JUL O/R]
X-Radiation DHHS/HWC
G-5 Temperature Operation +5oC ~ +40oC
Storage -20oC ~ +60oC
G-6 Operating Humidity Less then 80% RH

GENERAL SPECIFICATIONS
G-7 On Screen Menu Yes
Display Menu Type Icon
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 Yes
Set Up Yes
PIP SOURCE No
TV/CABLE(CATV) Yes
CH Program Yes
Add/Erase Yes
Option Yes
Language Yes
V-chip Yes
CH Label Yes
Favorite CH Yes
Lock Yes
Color Stream DVD/DTV Yes
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 Yes
Channel(TV/Cable) Yes
CH Label Yes
Game Timer Yes
Sleep Timer Yes
Sound Mute Yes
P-in-P No
V-chip Rating Yes
G-8 OSD Language English French Spanish
OSD Language Setting English
G-9 Clock and Sleep Timer Max Time 120 Min
Timer Step 10 Min
On/Off Timer Program(On Tim / Off Tim) No
Wake Up Timer No
Timer Back-up (at Power Off Mode) more than -- Min Sec

GENERAL SPECIFICATIONS
G-10 Remote Unit RC-DU
Control Glow in Dark Remocon Yes
Format Toshiba
Custom Code TV:40-BF h
Power Source Voltage(D.C) 3V
UM size x pcs UM-4 x 2 pcs
Total Keys 42 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 Yes
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/Enter Yes
Mute Yes
Exit Yes
MTS(Audio Select) Yes
Fav.Up Yes
Fav.Down Yes
Set + No
Set - No
P-in-P Keys PIP No
Swap No
Locate No
Still No
2 Tuner PIP CH Up No
P-in-P Only PIP CH Down No
Multi Brand Keys CH Up(VCR) Yes
CH Down(VCR) Yes
Pause/Still Yes
TV/VCR(VCR) Yes
Code Yes
FF Yes
Rew Yes
Rec Yes
Play Yes
Stop Yes
TV Yes
VCR Yes
Cable Yes

GENERAL SPECIFICATIONS
G-11 Features Auto Degauss Yes
Auto Shut Off Yes
Canal+ No
CATV Yes
Anti-theft No
Rental No
Memory(Last CH) Yes
Memory(Last Volume) Yes
V-Chip Yes
Type USA,Toshiba Type
BBE No
Auto Search No
CH Allocation No
SAP Yes
Just Clock Function No
CH Label Yes
VM Circuit No
Full OSD No
Premiere No
Comb Filter Yes
3 Lines
Auto CH Memory Yes
Hotel Lock No
Closed Caption Yes
Stable Sound Yes
FBT Leak Test Protect Yes
CH Lock Yes
Video Lock Yes
Game Timer Yes
Energy Star No
Favorite CH Yes
1 Tuner P-in-P No
2 Tuner P-in-P No
G-12 Accessories Owner's Manual Language English /French
W/ Warranty Yes
Remote Control Unit Yes
Rod Antenna No
Poles
Terminal
Loop Antenna No
Terminal
U/V Mixer No
DC Car Cord (Center+) No
Guarantee Card No
Warning Sheet No
Circuit Diagram No
Antenna Change Plug No
Service Facility List No
Important Safety Instruction Yes
Dew/AHC Caution Sheet No
AC Plug Adapter No
Quick Set-up Sheet No
Battery Yes
UM size x pcs UM4 size x 2
OEM Brand No
AC Cord No
AV Cord (2Pin-1Pin) No
Registration Card (NDL Card) Yes
ESP Card Yes
PTB Sheet No
300 ohm to 75 ohm Antenna Adapter No

GENERAL SPECIFICATIONS
G-13 Interface Switch Front Power Yes
System Select No
Main Power SW No
Sub Power No
Channel Up Yes
Channel Down Yes
Volume Up Yes
Volume Down Yes
Rear AC/DC No
TV/CATV Selector No
Degauss No
Main Power SW No
Indicator Power Yes
Stand-by No
On Timer No
Terminals Front Video Input RCA
Audio Input RCA x 2
Other Terminal No
Rear Video Input(Rear1) RCA
Video Input(Rear2) RCA
Audio Input(Rear1) RCA x 2
Audio Input(Rear2) RCA x 2
Video Output RCA
Audio Output RCA x 2
S- Input Yes
Euro Scart No
Color Stream RCA x 3
Diversity No
Ext Speaker No
DC Jack 12V(Center +) No
VHF/UHF Antenna Input F Type
AC Outlet No
G-14 Set Size Approx. W x D x H (mm) 600 x 500.5 x 560
G-15 Weight Net (Approx.) 35kg ( 77.1 lbs)
Gross (Approx.) 38Kg ( 83.7 lbs)
G-16 Carton Master Carton No
Content ---- Sets
Material -- /--
Dimensions W x D x H(mm) -- x -- x --
Description of Origin No
Gift Box Yes
Material Double/Brown
Dimensions W x D x H(mm) 718 x 580 x 655
Design As per Buyer's
Description of Origin Yes
Drop Test Natural Dropping At 1
C
orner
/
3
E
dges
/
6
Su
rf
aces
Height (cm) 31
Container Stuffing 162 Sets/40' container
G-17 Cabinet Material Cabinet Front PS 94V0 DECABROM
Cabinet Rear PS 94V0 DECABROM

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.
Flip up the sides of the Rubber Cap in the direction of the
arrow and remove one side of the support.
(Refer to Fig. 1-2.)
2.
DISASSEMBLY INSTRUCTIONS
GND on the CRT
Screwdriver
Alligator Clip
Support CRT
GND on the CRT
Rubber Cap
CRT Support
Fig. 1-1
Fig. 1-2
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.)
Fig. 1-4
4. Insert one end of the Anode Support into the anode button,
then the other as shown in Fig. 1-5.
5.
6. Confirm that the Support is securely connected. Put on the Rubber Cap without moving any parts.
CRT Support Fig. 1-5

Masking Tape
(Cotton Tape)
DISASSEMBLY INSTRUCTIONS
2.
REMOVAL
IC
Put the Masking Tape (cotton tape) around the Flat
Package IC to protect other parts from any damage.
(Refer to Fig. 2-1.)
1.
Fig. 2-1
NOTE
REMOVAL AND INSTALLATION OF
FLAT PACKAGE IC
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.
NOTE
Masking is carried out on all the parts located within 10
mm distance from IC leads.
Blower type IC
desoldering machine
IC
Heat the IC leads using a blower type IC desoldering
machine. (Refer to Fig. 2-2.)
2.
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.
When IC starts moving back and forth easily after
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.)
3.
Blower type IC
desoldering
machine
IC Fig. 2-3
Tweezers
Peel off the Masking Tape.4.
Absorb the solder left on the pattern using the Braided
Shield Wire. (Refer to Fig. 2-4.)
5.
NOTE
Do not move the Braided Shield Wire in the vertical
direction towards the IC pattern.
Braided Shield Wire
Soldering Iron
Fig. 2-4
IC pattern

DISASSEMBLY INSTRUCTIONS
Supply soldering
from upper position
to lower position
IC
Supply the solder from the upper position of IC leads
sliding to the lower position of the IC leads.
(Refer to Fig. 2-6.)
2.
Fig. 2-6
Soldering IronSolder
IC
Absorb the solder left on the lead using the Braided Shield
Wire. (Refer to Fig. 2-7.)
3.
Fig. 2-7
Soldering Iron
Braided Shield Wire
NOTE
Do not absorb the solder to excess.
IC
When bridge-soldering between terminals and/or the
soldering amount are not enough, resolder using a Thin-tip
Soldering Iron. (Refer to Fig. 2-8.)
4.
Fig. 2-8
Thin-tip Soldering Iron
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.
Finally, confirm the soldering status on four sides of the 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.
5.
Solder temporarily
Soldering Iron
INSTALLATION
Take care of the polarity of new IC and then install the new
IC fitting on the printed circuit pattern. Then solder each
lead on the diagonal positions of IC temporarily.
(Refer to Fig. 2-5.)
1.
Fig. 2-5
Solder temporarily

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 Remocon Key Operations
VOL. (-) MIN 0Releasing of V-CHIP PASSWORD and LOCK PASSWORD.
VOL. (-) MIN 1
Initialization of the factory.
NOTE: 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.
VOL. (-) MIN 6
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".
VOL. (-) MIN 8 Writing of EEPROM initial data.
NOTE: Do not use this for the normal servicing.
VOL. (-) MIN Display of the Adjustment MENU on the screen.
Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment).
9
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.
2.
3.
Set the VOLUME to minimum.
Press both VOL. DOWN button on the set and Channel
button (6) on the remote control for more than 1 second.
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.
Table 1
1.
2.
3.
4.
5.
6.
7.
8.
The unit will now have the correct DATA for the new MEMORY IC.
Enter DATA SET mode by setting VOLUME to minimum.
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.
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.
Press ENTER to select DATA. When DATA is selected, it will "blink".
Again, step through the DATA using VOL. UP/DOWN button until required DATA value has been selected.
Pressing ENTER will take you back to ADDRESS for further selection if necessary.
Repeat steps 3 to 6 until all data has been checked.
When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.
A9 C3 37 00 31 B3 27 16 (*1) 00
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +A +B +C +D +E +F
INI
0F 00 28 80 27 40 83 43 0010 00 10 0E 0F 07 42 42
00 44 04 0F 0F 0F 5F
61 64 24 67 69 2A 6B 6C 6D20 63 6E 6F 70 71 52 72
53 54 74 55 75 75 56 56 7630 73 76 57 57 77 77 58
58 78 59 59 79 79 5A 5A 7A40 78 7A 5B 5B 7B 7B 5C
5C 7C 5D 5D 7D 7D 5E 5E 7E50 7C 7E 5F 5F 5F 7F 7F
(*1)
2B
Data
2AFor CANADA
For USA

ELECTRICAL ADJUSTMENTS
FUNCTION
UNI COL CENT
UNI COL MIN
BRI. MAX
BRI. MIN
COLOR MAX
COLOR CENT
COLOR MIN
TINT
SHARPNESS
RGB CONTRAST
PARABOLA CORR
TRAPEZIUM CORR
CORNER CORR TOP
CORNER CORR BTM
V EHT
H EHT
FM LEVEL
LEVEL
SEPARATION 1
1. ADJUSTMENT PROCEDURE
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.)
2. BASIC ADJUSTMENTS
Prepare the following measurement tools for electrical
adjustments.
2-1: CONSTANT VOLTAGE
1.
2.
3.
Set condition is AV MODE without signal.
Connect the digital voltmeter to the TP002.
Adjust the VR502 until the digital voltmeter is 135 ±1V.
2-2: RF AGC
1.
2.
3.
4.
Receive the VHF HIGH (63dB).
Connect the digital voltmeter between the TP101 and the
GND or pin 5 and pin 1 (GND) of CP101.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (02) on the remote control to
select “RF AGC”.
Press the VOL. UP/DOWN button on the remote control
until the digital voltmeter is 2.2V.
2-3: CUT OFF
1.
2.
3.
Place the set with Aging Test for more than 15 minutes.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (01) on the remote control to
select “CUT OFF”.
Adjust the Screen Volume until a dim raster is obtained.
2-5: FOCUS
1.
2.
3.
Receive the monoscope pattern.
Turn the Focus Volume fully counterclockwise once.
Adjust the Focus Volume until picture is distinct.
2-4: WHITE BALANCE
NOTE: Adjust after performing CUT OFF adjustment.
1.
2.
3.
4.
5.
6.
7.
Place the set with Aging Test for more than 10 minutes.
Receive the gray scale pattern from the Pattern Generator.
Using the remote control, set the brightness and contrast
to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (13) on the remote control to
select “R. BIAS”.
Press the CH. UP/DOWN button on the remote control to
select the “R. BIAS”, “G. BIAS”, “B. BIAS”, “B. DRIVE” or
“G. DRIVE”.
Adjust the VOL. UP/DOWN button on the remote control
to whiten the R. BIAS, G. BIAS, B. BIAS, B. DRIVE, and
G. DRIVE at each step tone sections equally.
Perform the above adjustments 5 and 6 until the white
color is looked like a white.
1. Oscilloscope
2. Digital Voltmeter
3. Multi-sound Generator
4. Pattern Generator
On-Screen Display Adjustment
1. In the condition of NO indication on the screen.
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.
Fig. 1-1
3.
4.
Use the Channel 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.
2-6: HORIZONTAL POSITION
1.
2.
3.
4.
Receive the monoscope pattern.
Using the remote control, set the brightness and contrast
to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (04) on the remote control to
select “H. POSI”.
Press the VOL. UP/DOWN button on the remote control
until the SHIFT quantity of the OVER SCAN on right and
left becomes minimum.
FUNCTION
OSD H
CUT OFF
RF. AGC
---
H. POSI
V. POSI
H. SIZE
V. SIZE
V. CENT
V. LIN
VS. CORR
G. DRV
B. DRV
R. BIAS
G. BIAS
B. BIAS
BRI. CENT
SUBCONT
UNI COL MAX
NO.
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
FUNCTION
SEPARATION 2
TEST STEREO
X-RAY
V POS U
V POS L
H POS L
H POS R
H SIZE
V SIZE
H POSI
R
G
B
BRIGHT
COLOR
TINT
VCO
PIP INPUT SELECT
READ DATA
NO.
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
77
88 Fig. 1-2
NO.
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
TV
00 OSD 15

ELECTRICAL ADJUSTMENTS
2-8: VERTICAL SIZE
1.
2.
3.
4.
Receive the monoscope pattern.
Using the remote control, set the brightness and contrast
to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (07) on the remote control to
select “V. SIZE”.
Press the VOL. UP/DOWN button on the remote control
until the SHIFT quantity of the OVER SCAN on upside and
downside becomes 9 ±2%.
2-7: VERTICAL POSITION
1.
2.
3.
Receive the monoscope pattern.
Using the remote control, set the brightness and contrast
to normal position.
Adjust the VR401 until the horizontal line becomes fit to
the notch of the shadow mask.
2-9: VERTICAL LINEARITY
NOTE: Adjust after performing adjustments in section 2-8.
After the adjustment of Vertical Linearity, reconfirm
the Vertical Position and Vertical Size adjustments.
Receive the monoscope pattern.
Using the remote control, set the brightness and contrast
to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (09) on the remote control to
select “V. LIN”.
Press the VOL. UP/DOWN button on the remote control
until the SHIFT quantity of the OVER SCAN on upside and
downside becomes minimum.
1.
2.
3.
4.
2-11: SUB TINT/COLOR CENT
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14
15.
16.
Receive the color bar pattern. (RF Input)
Connect the oscilloscope to TP806.
Using the remote control, set the brightness, contrast,
color and tint to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (26) on the remote control to
select “TINT”.
Press the VOL. UP/DOWN button on the remote control
until the section “A” becomes a straight line
(Refer to Fig. 2-1).
Connect the oscilloscope to TP804.
Press the channel button (24) on the remote control to
select “COL. CENT”.
Adjust the VOLTS RANGE VARIABLE knob of the
oscilloscope until the range between white 100% and
0% is set to 5 scales on the screen of the oscilloscope.
Press the VOL. UP/DOWN button on the remote control
until the red color level is adjusted to 110 ±5% of the
white level. (Refer to Fig. 2-2)
Receive the color bar pattern. (Audio Video Input)
Press the TV/VIDEO button on the remote control to set
to the AV mode. Then perform the above adjustments
2~9.
Press the TV/VIDEO button on the remote control to set
to the CS mode.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (26) on the remote control to
select “TINT”.
Press the VOL. UP/DOWN button on the remote control
until the tint step No. becomes “51”.
Press the channel button (24) on the remote control to
select “COL. CENT”.
Press the VOL. UP/DOWN button on the remote control
until the color step No. becomes “55”.
2-10: BRIGHT CENT
1.
2.
3.
4.
5.
6.
7.
8.
9.
Receive the monoscope pattern. (RF Input)
Using the remote control, set the brightness and contrast
to normal position.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (16) on the remote control to
select "BRI CENT".
Press the VOL. UP/DOWN button on the remote control
until the white 0% is starting to be visible
Receive the monoscope pattern. (Audio Video Input)
Press the TV/VIDEO button on the remote control to set
to the AV mode. Then perform the above adjustments
2~4.
Press the TV/VIDEO button on the remote control to set
to the CS mode.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (16) on the remote control to
select "BRI CENT".
Press the VOL. UP/DOWN button on the remote control
until the brightness step No. becomes “83”.
Fig. 2-1
"A"
White 100% Red 110% Fig. 2-2

ELECTRICAL ADJUSTMENTS
2-13: SEPARATION 1, 2
Please do the method (1) or method (2) adjustment.
2-12: CONTRAST MAX MANUAL
1.
2.
3.
4.
5.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (18) on the remote control to
select “CONT. MAX”.
Press the VOL. UP/DOWN button on the remote
control until the contrast step No. becomes “106”.
Receive a broadcast and check if the picture is normal.
Press the TV/VIDEO button on the remote control to set
to the AV mode. Then perform the above adjustments
1~3.
Press the TV/VIDEO button on the remote control to set
to the CS mode. Then perform the above adjustments
1~3.
Method (1)
1.
2.
3.
4.
5.
Set the multi-sound signal generator for each different L-
ch and R-ch frequency (Ex. L-ch=2KHz, R-ch=400Hz)
and receive the RF.
Connect the oscilloscope to the Audio Out Jack.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (37) on the remote control to
select “SEP 1”.
Press the VOL. UP/DOWN button on the remote control
to adjust it until the audio output wave becomes a fine
sine wave.
Press the CH UP button once the set to “SEP 2” mode.
Then perform the above adjustment 4.
Method (2)
1.
2.
3.
4.
5.
6.
7.
8.
Set the multi-sound signal generator L-ch=1KHz, R-ch
=Non input and receive the RF.
Connect the oscilloscope to the Audio Out Jack (R-ch).
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (37) on the remote control to
select “SEP 1”.
Press the VOL. UP/DOWN button on the remote control
to adjust it until the R-ch output becomes minimum.
Set the multi-sound signal generator L-ch=Non input,
R-ch=1KHz and receive the RF.
Connect the oscilloscope to the Audio Out Jack (L-ch).
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (38) on the remote control to
select “SEP 2”.
Press the VOL. UP/DOWN button on the remote control
to adjust it until the L-ch output becomes minimum.
2-14: LEVEL
1.
2.
3.
4.
Receive the VHF HIGH (70dB).
Connect the AC voltmeter to pin 6 of CP101 and the pin
1 (GND) of CP101.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (36) on the remote control to
select “LEVEL”.
Press the VOL. UP/DOWN button on the remote control
until the AC voltmeter is 75 ±2mV.
2-15: OSD HORIZONTAL
1.
2.
3.
Receive the monoscope pattern.
Activate the adjustment mode display of Fig. 1-1.
Press the VOL. UP/DOWN button on the remote
control until the value from the adjustment screen
frame to the shadow mask becomes 50 ±5mm.
(Refer to Fig. 2-3)
Fig. 2-3
TV
00 OSD 15
50 mm
2-24: Confirmation of Fixed Value (Step No.)
Please check if the fixed values of the each adjustment
items are set correctly referring below.
FUNCTION
V. POSI
H. SIZE
V. CENT
VS. CORR
SUBCONT
UNI COL CENT
UNI COL MIN
BRI. MAX
BRI. MIN
COLOR MAX
COLOR MIN
SHARPNESS
RGB CONTRAST
PARABOLA CORR
TRAPEZIUM CORR
CORNER CORR TOP
CORNER CORR BTM
V EHT
H EHT
FM LEVEL
BRIGHT
COLOR
TINT
NO.
05
06
08
10
17
19
20
21
22
23
25
27
28
29
30
31
32
33
34
35
51
52
53
RF
00
00
32
12
08
64
20
112
32
105
00
30
21
00
00
00
00
00
00
01
---
---
---
CS
---
---
---
---
06
64
20
112
32
105
00
30
---
---
---
---
---
---
---
---
---
---
---
AV
---
---
---
---
09
64
20
112
32
105
00
30
---
---
---
---
---
---
---
---
31
18
30

ELECTRICAL ADJUSTMENTS
3. PURITY AND CONVERGENCE
ADJUSTMENTS
NOTE
1.
2.
3.
Turn the unit on and let it warm up for at least 30
minutes before performing the following adjustments.
Place the CRT surface facing east or west to reduce the
terrestrial magnetism.
Turn ON the unit and demagnetize with a Degauss Coil.
3-1: STATIC CONVERGENCE (ROUGH ADJUSTMENT)
1.
2.
3.
4.
5.
6.
7.
8.
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.
Receive the green raster pattern from the color bar
generator.
Slide the deflection yoke until it touches the funnel side
of the CRT.
Adjust center of screen to green, with red and blue on
the sides, using the pair of purity magnets.
Switch the color bar generator from the green raster
pattern to the crosshatch pattern.
Combine red and blue of the 3 color crosshatch
pattern on the center of the screen by adjusting the pair
of 4 pole magnets.
Combine red/blue (magenta) and green by adjusting the
pair of 6 pole magnets.
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.
2.
3.
4.
5.
Receive the green raster pattern from color bar generator.
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.
Move the deflection yoke backward (to neck side)
slowly, and stop it at the position when the whole screen
is green.
Confirm red and blue color.
Adjust the slant of the deflection yoke while watching the
screen, then tighten the fixing screw.
DEFLECTION YOKE
DEFLECTION YOKE SCREW
MAGNET SCREW
PURITY MAGNETS
6 POLE MAGNETS
4 POLE MAGNETS
Fig. 3-1
3-3: STATIC CONVERGENCE
NOTE
Adjust after performing adjustments in section 3-2.
1.
2.
3.
Receive the crosshatch pattern from the color bar
generator.
Combine red and blue of the 3 color crosshatch
pattern on the center of the screen by adjusting the pair
of 4 pole magnets.
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
BR
G
B
R G B
UPWARD/DOWNWARD SLANT RIGHT/LEFT SLANT
Fig. 3-2-a
WEDGE WEDGE
WEDGE
WEDGE POSITION
Fig. 3-2-b

ELECTRICAL ADJUSTMENTS
4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION)
L503
CP502
CRT
CP1001
SPEAKER
CRT PCB
CRT
CP401
CP702A
VR401
VR502
FB401
TP002
W011
CP101
TU001
J702 J701 J703 J704 J708
CP801A
J801
CP805
CP806
CP803
TP806 CP804
TP804
R804
R808
CRT
CRT
MAIN PCB CP702B
J705 J706 J707
CD702
VIDEO JACK PCB
CD801
CD805
CD803
TP001
CP501
AC IN CD501

CHROMA
IC201 TB1253N
V.OUTPUT
IC401
LA78041
FBT
FB401
COMB FILTER
IC1501
LA76600M-TLM
SCL
24
SDA
25
18
16
11
34 28 16 15 42 47 55
38
31
51
HV
1
79
F10
S
1
5
6 7
DY
V OUT
FBP IN
H OUT
ABCL
B OUT
G OUT
C IN CVBS LNT IN
IF DET OUT
IF IN IF IN
43 44
YUV IN
TV BLOCK DIAGRAM
22 21 20 19
V IN
U IN
EXT B IN
EXT G IN
EXT R IN
YS/YM IN
DE-EMPH SOUND DECORDER
IC902 AN5829S
18 19
21 22
14
CRT
V801
3
Q1503
BUFFER
Q1505, Q1506,
Q1508
BUFFER
Q1507 BUFFER
14
R OUT
12
CW OUT
Q1504
BUFFER
Q701 BUFFER
J801
8
6
11
7
F
10
Q801, Q810
RED/
GREEN AMP
Q802, Q811
GREEN/
RED AMP
MEMORY IC
IC199
S-24C16AFJA-TB-01
5
6
Q803, Q812
BLUE AMP
Q405
H.OUT
Q402
H.DRIVE
27
36
35
34
33
30
31
SCL1
SDA1
9
BLANK
RED R
GREEN G
BLUE B
RESET
REMOCON
3
RESET IC
IC103 PST600C 1OS101
Q601, Q603
PROTECT
MICON
IC101 OEC7074A
41 PROTECT 6
KEY 1
7
19
20
1
KEY 2
X101
8MHz
X.IN
X.OUT
AUDIO MUTE
VOL_UP
CH UP
VOL_DOWN
CH DOWN
POWER
SOUND AMP
IC1001
AN5276
7
R
SPEAKER
SP1001
12
L
8 5
Q1001
MUTE
AV SWITCH
IC701
MM1311AD
8
10
7
9
30
32
22
25
31
27
29
24
23
20
18
17
2
14
7
9
10
19 2
TONE CONTROL
IC303
M62420SP
TU001
IF
11 SCL
SDA
54
41 2365
J702
643
4
2
6
3
J703
3
2
4
J708
3
5
J704
15 14 13
YUV IN
2
2
2
2
Q704
BUFFER
Q705
BUFFER
J707
J706
J705
4
2
6
3
J701
10
T501
15
5
Q502
SWITCHING D
SOUND+B
+B

0
C608
C216
C604
C214
C612
W220
D614
D613
D611
IC303
IC103
D103
X101
C123
C724
C725
C925
C919
C918
C917
W212
W213
W113
C328_1
C329_1
C303
C924
C304_1
L901
L302
C640
R608
W834
D201
R137
J705
J706
J707
R720 C315
W214
C616
W161
W225
D608
D612
D615
W822
C213
D602 D603 D604
W119
W129
L604
W208 L603
C630
W125
C625
W207
C619
C624
X601
C204
L204
C211
CF201
C203
L602
C209
W839
W205
W118
W120
W224
W215
W222
W223
R605
R442
C615
C935
L601
L205
CP702A
CP702B
D108
W114
W155
C117
D605
W206
W163 W066
W219
R735 C929
C921
W071
W068
C122
D102
D107
W168
W069
W072
W073
W167
W111
W042
W138
W164
W134
W135
W166
W147
W217
W152
W142
C305_1
W159
L1503
C1502
L1502
C1501
L1511
C1520
L1508
W043 W076
W136
C1510 L1505
C1528
C1518
SW105
SW102SW101 SW104SW103
D520
W049 W048 W140
D406
C439
R436
C436
D517
W051
IC503 IC502
C408
T401
HS502
VR502
R554
C533
R553
W025
Q507
R508
D516
Q504
R515
D513
D528
C519
C513
C503
C502
R500
TH501_1
FH501
F501
CP501
C505_1 FH502
L501
R518
D501
D527
D530
D502
C507
D529
D504
D531
D503
IC504
CP502
C506_1
RY501
Q514
D523
D509
C509
Q501
D510
C527
D512
C528
C529
C532
R522
R521
Q512
D505
C501
D514
C518
D511
R536
C539
R535
Q503
R505 R507
Q505
Q510
R520
R537
R512
W065
R001
R002
W061 W060
R128
W023
D519
C118
W059
W020
R527
W045
R501
W003
C512
W040
C517_1
W057
W046
W055
R524
W077
W050
W021
W078 W026
R519
W169
W149
R106 R112
W082
W211
L301
W139
W148
W150
W058
W062
W153
W156
W157
CD701B
W143
R635
T501
W216
CF202
W227
W221
W218
W226 D606
W827
W115
W052
R631
R426
W037
W039
W116
C713
L002
C735
C714
R741
R734
R728
R711
R723
R748
R749
R770
R717
R702
CD701A
C715
R708
J702
IC701
R705
R707
C705
D711
C733
C1007
C1008
C1009
HS1001
IC1001
C1011
C1004
L201
L203
R221
W172
W181
W173
W201
C003
W183
W177
TU001
W197 W194
W093 W094
W187
W209
W203
W193
W133
W107
W100
W105
C002
C1003
C004
L701
W824 W818
W099
W101
W083
W085
L1512
C1530
W108
W110
C1525
W103
L1510
R432
D404
TP002
R420
R416
W032
R407
W036
R413
R414
R428
R430
W807
R439
L402
Q405
W001
W035
R441
R437
W009
TP004
R443
W011
W013 W014
HS402
R438_1
IC401
CP401_1
C426
D403
C411
CP801A
W012
VR401
D410
C409
C406
C407
W027
W008
C413
W041
C401
R517
D407
D411
TP005
C522
Q502
W017
W030
W006
C418_2
C420
C417
W821
D414
D415
R409
R429
R425 R421
R424
R406
C1006
W109
C741
W097
W196
W130
W188 W189
W186
W192
W084
W176
W174
W175
W182
R1522
W106
CP101
W010
W047
W029
W141
W179
W180
W079
W081 W080
W089 W090 W091
W087
W127
W088
W098
W092
W096
W095
W086
W117
W112
W191
R541_1
R410
Q508
D109
W825
W015
W184
CF203
HS501
J701 J703 J704 J708
D001
C425
C504
FB401
C427
IC201 R542
C326
D507
R502
W063
C111
D525
W022
B504
W024
R546
C403
C402
Q402
C430
W034
W031
D402
W104
W033
R408
OS101 R133
W162
W171
W146
W151
W144
W170
W137
R544
R545 D524
W007
R510
TP001
R1525
CP1001
C530
W053
W056
W854
R452
W038
D460
R460
W154
W054
D515
C521
R539
R540
C535_1
R543
W004
W018
W019
D405
W228
W005
D506
S802Y
B501
S802X
C704_1
W840
W838
W817
W857
C531_1
W848
W805
W809
S801Y
S801X
W808
W813
W802
B502
W002
CD501
R503
R159
R160
C146
C230
W833
C431
CD801
CD701
CD701
CD702
CD702
PRINTED CIRCUIT BOARDS
MAIN/VIDEO JACK (INSERTED PARTS)
SOLDER SIDE

Q509
Q201
Q203Q202
C622 C621
C620
C330
Q704
Q705
C922
IC902
Q103
Q604
R111
C742
R727
R730
R736
R731
R737
R738
R732
R739
C931
C928
C926
C930
C932
C927
C336
R328
C337
R322
C338
C335
R325
C333
C331
C332
R314
C325
C334R324
R906
R203
R204
R904
R905
R323
C339
R327
R213
R209
C206 C202
R202
R211
R214
R223
C227
R321
C210
C212
R212
C201
C215 C634 C601
R613 R611 R609
R601C633
R615 R623
R612 R610 R614
C618 C629 C222
C614 C609 R602
R205
C605
R750 R747
C606
R603
C638
C617
R607
C626 C623
R604
Q601
R636
R619
R618
C602
C637_1
R215
R210
R201
C218
R220
Q204
C208
R218
C221_1
C740
R326
C627
R319
C229
IC101
R115
R114
R132
R129
Q101 Q102
C112
R130
R127
R119
R155
R156
C103
R157
R102
C140 C141
R141
C125
R123
R124
R151
R116R134
C107
Q506
C1506
C1507
C1508
R1502
C1505
C1504
C1513
R1505
R1506
C1517
Q1503
C1519
R1507
C1514 R1504
C1512 C1515
C1516
R1508
Q1504
R1509
C1509
Q1505
R1514
Q1506
R1513
R1515 R1517
C1531
C1521
R1510
C1503
R320
C1535
R126
R101
R104
Q406
R150
C132
Q109
C526
R403
C554
R533
R532
R513 R516
R511
C524
R125
R139
C109
C108
R108
R109
C143
C121
C128
C139
C607
R640
Q603
R638
R751
Q701
C723 R722
R721
R740
C738
R715
C747 C745
C746
R726
Q709
C744
C727 C726
C743
R713
C731
R724
C734
C750
R714
C793
C728
C720
C737
R716
C730
C748
C722
C721
C712
C739
C708
C707
R1009
Q1001
R1013
R1003
R1010
R219
C220
R217
R1004 R1011
R003
R006
R007
C001
C753
R1520
C1533
R1519 R1516
Q1507
R1518
C1526
R417
R415
C405
R412
R138
R752
R725
C706
W837
R131
C1523
IC1501
R547
C729
IC199
R121
R122
R140
C1522
R1511
C1524
C541
R1523
R525
R142
Q460
C138
R1528 R1529
C1527
R1524
Q1508
R1530
R1503
R1521
W842
W814
W836
W820
W843
W859
W803
W832
R144
R146
R004
C145
PRINTED CIRCUIT BOARDS
MAIN/VIDEO JACK (CHIP MOUNTED PARTS)
SOLDER SIDE
0

PRINTED CIRCUIT BOARDS
CRT
SOLDER SIDE
R808
R804
R806
Q803
Q802
L804
L803
Q801
D801
R817 C804
R809
R802
R812
R811
R819
R821
R815
C805
C806
D803
D802
R829
R814
R801
R830
TP805
TP804
TP806
CP803
L802
R803
CP804
C809
C820
C815
CP806
C808
D807
D808
J801_2
R828
Q812
Q810
R810
W001
R813
W002
W003
CP805_1
C823
C813
D809
Q811
W804
W802
W803