Hughes JVC 220, Руководство по обслуживанию

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Chapter 4---Maintenance (Removal/Replacement)
4.10 Convergence/Deflection PCB.
The Convergence/Deflection PCB is located on the bottom side of
the Electronic Module card cage.
To remove the Convergence/Deflection PCB:
1. Remove the rear cover ( Section 4.2 ).
2. Tilt the Electronic Module up. ( Section 3.3 ).
3. Disconnect 6 connectors; J31, J32, J33, J38, J39, and
J40. ( Figure 4-6). Move the cables out of the way.
Figure 4-7. Convergence/Deflection PCB.
4. Loosen (not necessary to remove) the 5 screws that
secure the Convergence Deflection PCB to the
electronic module card cage (
see Figure 4-7) .
5. Remove the Convergence Deflection PCB by sliding it
upward so the mounting screws will clear the access
holes, then angle the right side outward.
NOTE: In
order to get the right side out, it may be necessary to
first move the board out enough to clear the access
holes,
then angle the left side out just enough for the
top 2 fins of the heat sync to fit over the electronic
module frame lip (this will allow a little more clearance
for the right side to be removed), then maneuver the
right side out.
6. Reinstall the Convergence/Deflection PCB by lowering
the right side in first until it clears the electronic
module edge, then lowering the left side in.
NOTE: it
Model 220 Service Manual 4-13