Panasonic CT-24SL14J Service Manual page 10

9 Dissasembly for service
Back cover
Remove all the screws marked with an arrow (←) from the
back of the receiver
NOTE
Screw configuration, type, and number of screws vary
depending on the model of the receiver serviced and the
application; various models are covered in this manual.
Use same hardware when reassembling the receiver.
• • • • 3 screws at the top edge of the receiver.
• • • • 2 screw by the A/V jacks.
• • • • 1 screw at each lower corner of the receiver.
• • • • 1 screw by the Flyback.
• • • • 1 screw by the A/C cord.
A-Board - Main chassis
1. Slide the chassis completely out of the guide rails.
2. Stand the receiver on its edge. The underside of the
board is completely
replacement.
Note:
Some tie-wraps that secure the wire dressings may
need to be unfastened for chassis removal.
C-Board - CRT output
The board plugs onto the socket on the CRT neck. To
release the Focus wire, use a dull object to release the tab
on the socket (near the wire opening) and carefully pull on
the wire. To connect the focus wire, press on the tab to lock
it then insert the wire in the opening and press on it until it
is fully inserted and locked in place.
Focus cable release
Speakers
Each speaker is secured to the cabinet with 4 screws.
NOTE
When reassembling speakers be sure to connect the
speaker wires to the correct speaker lead (+) (-)
9.1. Disassembly for CRT
replacement
1. Discharge the CRT as instructed in the "safety precautions".
2. Disconnect the yoke (DY) plug, degaussing coil (DEG) plug
from the main board.
3. Unplug the CRT 2nd anode button from the main board.
accessible for component
4. Remove the C-Board from the CRT base and unplug the
black wires (CRT dag ground) C11 & C21.
5. Disconnect the speakers plug from the A-Board.
6. Lift the main chassis (A-Board) and all mounted boards
completely out with the CRT board attached.
7. Perform complete removal of chassis, as instructed in
"disassembly for service" section.
CRT replacement
1. Perform "disassembly for CRT replacement" procedure.
2. Insure that the CRT H.V. Anode button is discharged
before handling the CRT. Read the "safety precautions"
section on handling the picture tube.
3. Remove the components from the CRT neck and place
the cabinet face down on a soft pad.
4. Note the original order for the CRT mounting hardware
as they are remove from the CRT mounting brackets at
each corner of the CRT.
5. Remove the CRT with the degaussing coil and the dag
ground braid attached.
6. Note the original locations and mounting of the
degaussing coil and the dag ground assembly to insure
proper reinstallation on the replacement CRT.
To remove and remount the degaussing coil:
• • • • Unhook the coil spring from the bottom corners of
the CRT ears.
• • • • Release the braid loop from the upper corners of the
CRT ears.
7. Mount the dag ground braid on the replacement CRT.
Position the degaussing coil with new ties.
Dress coil as was on the original CRT.
8. Replace the components on CRT neck and reinstall into
cabinet. Verify that all ground wires and circuit board
plugs get connected.
IMPORTANT NOTICE
When ordering the CRT, please order CRT and CRT
kit also. Please see parts list section for part
numbers.
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