Pagewriters With Serial Number Prefix Prior To 3208A; Removing The Entire Preview Screen Assembly; Disassembling The Preview Screen Assembly - HP PageWriter XL M1705B Service Manual

PageWriters with Serial Number Prefix Prior to 3208A
If the PageWriter has a serial number prefix prior to 3208A, use these
procedures to remove or disassemble the preview screen assembly.
Removing the Entire Preview Screen Assembly.
Use this procedure to
remove the preview screen assembly as a single unit.
Warning
Warning
Perform the following four steps sequentially to eliminate the chance of
exposure to hazardous voltages.
1. Disconnect the AC power cord.
2. Verify that no disk is in the disk drive.
3. Turn the cardiograph On. (This allows the rectifier assembly
capacitors to discharge more rapidly.)
4. Remove the battery as described earlier in this chapter.
5. Remove the left and right clutch covers:
a. Insert a small flat-bladed screwdriver in the slot at the bottom
rear of the clutch cover and gently pry up till the catch
releases.
b. Tilt the clutch cover forward slightly to disengage the tabs at
the front, then lift it away. (This is easier if the display lays
flat on the PageWriter.)
6. Remove the screws holding the ground straps on both sides.
7. Remove the mounting screws and washers from the right and left
clutches.
8. Open the top cover and disconnect the preview cable from the
preview logic board (see "Opening and Removing the Top Cover
Assembly" later in this chapter).
Disassembling the Preview Screen Assembly.
Use this procedure to
disassemble the preview screen assembly.
Perform the following four steps sequentially to eliminate the chance of
exposure to hazardous voltages.
1. Disconnect the AC power cord.
2. Verify that no disk is in the disk drive.
3. Turn the cardiograph On. (This allows the rectifier assembly
capacitors to discharge more rapidly.)
4. Remove the battery as described earlier in this chapter.
5. Remove the left and right clutch covers:
a. Insert a small flat-bladed screwdriver in the slot at the bottom
rear of the clutch cover and gently pry up till the catch
releases.
Removal and Replacement 7-15