akira CT-21XF9, Service Manual

Page: 71 / 77

71
Model No: CT-21XF9A
Version 1.0
Description:
1. Install the CRT assembly (2) into the front cover assembly (4) with fixing torque of
3.5 ~ 4.5 Nm.
2. Connect cord plugs in the set according to the wiring diagram and position and tie
leads according to engineering cards.
3. Remove cover of the CRT socket and solder focus wire fixedly. Then close the cover
and solder the screen wire fixedly wire according to the wiring diagram. Finally bind
together the two wires on the Y board assembly with the wire clip (8).
4. Bind together the cord plugs XS601, XS402 and high voltage wire, screen wire and
focus wire of FBT with the wire clip (9).
5. Insert the power plug into the socket XS501 and power cord card into slot on the
lower left corner of the front cover.
6. Bind together the cord plug KDY (JU6.604.375) with the wire clip (16) and fix the
wire on upper internal part of radiating plate (JU5.861.190).
7. After adjustment, seal potentiometers on the FBT with white nitro magnetic paint
Q04-3 (18).
8. Put the seal cap (7) onto the screw (13) after close the back cover. After inspection,
seal it with plasticine and mark it.
9. Check and make sure that no scratch and foreign objects exist on / in the set, label
plates are stuck fixedly and button can work normally.
10.
Mount the teletext board assembly (19) onto the radiating flange of the chassis board
and secure it with M3 screws (20) and M3 nuts (21)
No
Code No. Description Quantity Remarks
1 JU5.049.270 Chassis assembly 1
2 JU5.370.083 CRT assembly 1
3 JU6.116.712 Back cover assembly 1
4 JU6.116.720 Front cover assembly 1
5 JU6.672.1172 Y board assembly 1 For large-neck CRT
6 JU6.672.1173 Y board assembly 1 For small-neck CRT
7 T/JU8.634.115 Seal cap 1
8 T/JU8.667.310 Wire clip 1
9 T/JU8.667.328 Wire clip 1
10 T/JU8.942.264 Washer 4
11 Japan standard Tapping screw 4 x 15BAH0 2
12 Japan standard Tapping screw 4 x 15BAHCh 2
13 GB845-76 Cross panhead tapping screw
4 x 20
1
14 Japan standard Tapping screw 4 x 20BAH0 6
15 Notched washer nut M5 4
16 Wire clip M04107 1
17 Plasticine
18 ZBG51053-87 White nitro magnetic paint
Q04-3
19 JUC7.820.330 Teletext board assembly 1
20 GB818-85 Cross panhead tapping screw 2
21 GB6170-85 T hexagon nut 2