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36AF61 Schematic ( PDF Datasheet ) - Toshiba

Teilenummer 36AF61
Beschreibung COLOR TELEVISION SERVICE MANUAL
Hersteller Toshiba
Logo Toshiba Logo 




Gesamt 30 Seiten
36AF61 Datasheet, Funktion
FILE NO. 020-200110
SERVICE MANUAL
COLOR TELEVISION
N1F Chassis
36AF61
(TAC0120)
PUBLISHED IN JAPAN. Jul., 2001 So






36AF61 Datasheet, Funktion
WARNING: BEFORE SERVICING THIS CHASSIS, READ THE X-RAY RADIATION PRECAUTION, SAFETY PRECAU-
TIONAND PRODUCT SAFETY NOTICEON PAGE 3 OF THIS MANUAL.
(FOR 35, 36)
s The following adjustments should be made when a complete realignment is required or a new picture tube is installed.
Perform the adjustments in order as follows :
1. Color Purity
2. Convergence
3. White Balance
Note: The PURITY/CONVERGENCE MAGNET assembly and rubber wedges need mechanical positioning.
Refer to figure 1.
Mounting position of the purity magnet assembly should fit to same position as old one because slightly difference to
the position depen on a kind of tube.
* There are no adjustment of purity and convergence in some picture tube (Unified with purity magnet)
COLOR PURITY ADJUSTMENT
NOTE : Before attempting any purity adjustments, the
DEFLECTION YOKE
receiver should be operated for at least fifteen
minutes.
1-5/8
1. Evenly degauss the entire screen.
2. Set the CONTRAST and BRIGHTNESS Controls to
the maximum.
3. Display built-in green raster using the TEST SIGNAL
SELECTION function.
4. Loosen the clamp screw holding the deflection yoke
(and remove the Rubber Wedges).
5. Slide the yoke forward or backward to provide vertical
PURITY/
green belt (zone) in the picture screen.
CONV.
6. Rotate and spread the tabs of the purity magnet (See
figure 3.) around the neck of the picture tube until the
Xv Coil
MAGNET
green belt is in the center of the screen. At the same
time, center the raster vertically by adjusting the mag-
net as shown below.
Figure 1.
RUBBER WEDGES
Green Belt
7. Move the yoke slowly forward or backward until a uni-
form green screen is obtained.Tighten the clamp screw
of the yoke temporarily.
8. Check the purity of the red and blue raster.
9. Put four wedges into the space between the picture
tube and the yoke to hold the yoke in the adjusted
position. (See figure 2.)
Do not tilt the yoke by excessive insertion of the wedge.
10. Remove cover paper of wedge and stick wedges on
the tube to fix the yoke in the adjusted position.
Fix the wedges with glass cloth tapes.
6
Adhesive
DEFLECTION
YOKE
Figure 2.

6 Page









36AF61 pdf, datenblatt
ITEM
FOCUS VR ADJ
SUB-BRIGHTNESS
(BRTC)
SUB-COLOR
(COLC)
SUB-TINT
(TNTC)
WIDTH
(WID)
E-W PARABOLA
(DPC)
ELECTRICAL ADJUSTMENT
ADJUSTMENT PROCEDURE
1. Enter the service mode, then select any register item.
2. Press the TV/VIDEO button on the Remote until the black cross-bar pattern ap-
pears on the screen.
3. Adjust the FOCUS control (on T461) for well defined scanning lines on the picture
screen.
1. Constrict the picture height until the
vertical retrace line appears adjusting
the HEIGHT control on the MAIN board.
2. Adjust the CONTRAST to the minimum
and BRIGHTNESS to the center.
3. Enter the service mode, then select
BRTCregister.
4. Adjust the data value so the belt of
vertical retrace line just disappear.
5. Adjust the CONTRAST for the desired
contrast.
6. Adjust the HEIGHT control.
Vertical retrace line
1. Receive color-bar signal from color-bar generator.
2. Press the RESET button.
3. Connect oscilloscope to base of Q906 on CRT-D board.
4. Enter the service mode, then select COLC.
5. Adjust the SUB-COLOR by pressing the
VOLUME s or t button to achieve about
Blue
1V0-p of blue bar.
6. Select TNTCregister.
Magenta
7. Adjust the data value to obtain the blue
bar to magenta bar ratio of 3:2 as shown. 0
8. Select COLCregister.
9. Adjust the data value to achieve 1.8V0-p
of blue bar on scope.
10. Check the picture with off-air signal.
3 (1.8V0-P)
2
1. Call up the adjustment mode display, then select the item WID.
2. Press the VOLUME s or t button to get the picture so the left and right edges of
raster begins to lack.
3. Press the VOLUME s or t button to advance the data by 7 steps.
Note : Check the horizontal picture position is correct.
1. Call up the adjustment mode display, then select the item DPC.
2. Press the TV/VIDEO button on Remote until the cross-hatch pattern appears on
the screen.
3. Press the VOLUME s or t button to make vertical lines straight as shown
below.
12

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