Horizontal/Vertical Deflection Pcb - Hughes JVC 220 Service Manual

Chapter 4---Maintenance (Removal/Replacement)

4.11 Horizontal/Vertical Deflection PCB

4-14
may be necessary to fit the top 2 fins of the heat sync
over the electronic module frame lip at the left to get
enough clearance for the right side to be installed.
Carefully fit the board over the mounting screws and
slide the board into position. Tighten the screws and
reconnect the connectors.
The Horizontal/Vertical (H/V) Deflection PCB is located in the
upper portion of the Electronic Module card cage.
To remove the Horizontal/Vertical (H/V) Deflection PCB:
1. Remove the rear cover (Section 4.2).
2. Disconnect 6 connectors; J34, J35, J36, J41, J42, and
J43. (see Figure 4-8). Move the cables out of the way.
3. Loosen (not necessary to remove) the 5 pozidrive
screws that secure the H/V Deflection Board to the
electronic module cage.
4. Remove the H/V Deflection PCB by sliding it toward
the left side of the projector (this is the upward direction
if the electronic module is raised up) so that the
mounting screws clear the access holes. Then lift the
side of the board that is nearest the front of the
projector first and angle it upward so that the side
closest to the rear clears the lip of the electronic
module frame. Be careful when removing or reinstalling
the board to avoid gouging it on the fan screws or
cable clamps.
5. Reinstall the HV Deflection PCB by lowering the side
that is nearest to the rear of the projector in first until it
clears the electronic module edge, then lowering the
other side. Carefully fit the board over the mounting
screws and slide the board into position. Tighten the
screws and reconnect the connectors.
Model 220 Service Manual