Disassembly/Reassembly; Back Cover (10); Top Cover (20); Video Output Board (70) - Zenith ZVM-133-TC Service Manual

Color video monitor with touch control
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ChapterS
Disassembly/Reassembly
This chapter along with Figure 6-1, provides instruc-
tions to both disassemble and reassemble the monitor.
Except for the CRT, the step-by-step instructions are
written for disassembly. For reassembly, perform steps
in the reverse order except when instructed to do
otherwise. Replace all cut cable ties during reassem-
bly.
WARNING: Be sure the signal and power cables are
unplugged from the computer or other signal source
before disassembling the monitor.
Back Cover (10)
1. Disconnect the power and signal cables from the
rear of the monitor.
2. Remove the four screws (OS) from the back cover
(10) and pull the cover back and away from the
monitor.
Top Cover (20)
1. Remove the back cover (10).
2. Remove the two screws (1S) from the bottom of
the cabinet and lift the top cover (20) up and to-
ward the rear of the monitor.
Video Output Board (70)
1 . Carefully remove the video output board from the
neck of the CRT and disconnect cable connectors
SA2, SC2, SX3, and SH3.
2. Disconnect the focus lead by twisting the halves
of the connector and pulling them apart.
3. Disconnect the gray grounding wire from the CRT
ground contact (100).
Cabinet Front (150)
1. Remove the back cover (10).
2. Remove the top cover (20).
3. Disconnect the primary control cable connectors
from the other boards.
4. Disconnect the RGB gain control board cables
from the other boards.
S.
Disconnect the degaussing cable connector from
the main board.
6. Remove the four screws (168) which secure the
cabinet front (1 SO) and bring the cabinet front for-
ward and away from the monitor.
Primary Control Board (125)
1. Remove the cabinet front (1S0).
2. Cut the cable tie (167) which holds the power LED
cable to the brightness control cable.
3.
Remove the two screws (120) securing the pri-
mary control board and remove the control board
from the cabinet front.
NOTE: The control knobs do not have to be removed
because they will fit through the openings in the front
of the cabinet.

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