Zenith SM-ZVM-122 Service Manual page 18

Page 5-2
INPUT TRANSFORMER ASSEMBLY
Refer to Figure 5-2.
The input transformer assembly is connected to
main cabinet by two screws. To remove this assem-
bly:
•
•
Remove the back cover .
Remove the two screws (D) on the bottom
of the cabinet holding the assembly in place.
MAIN BOARD
Refer to Figure 5-2.
The main board sets in place with two guide rails.
To remove the main board:
•
•
•
Remove the back cover.
Remove the input transformer assembly.
Slide out the main board.
CRT SOCKET BOARD
Refer to Figure 5-2.
•
•
Remove the back cover.
Remove the CRT socket board by carefully pul-
ling the board off the socket.
CONTROL PANEL BOARD
Refer to Figure 5-2.
The Video controls are mounted to circuit board
which is secured to the front of the main chassis.
To remove this board:
• Remove the back cover.
• Remove the input transformer assembly.
• Remove the main board.
• Remove the three screws (E) that secure the
board to the front panel.
• Remove the board.
ON/OFF SWITCH
Refer to Figure 5-2.
The On/Off switch is located on the front panel. To
remove this switch:
• Remove the back cover.
• Remove the input transformer assembly.
• Remove the main board.
• Remove the two screws (F) holding the switch
to the switch bracket.
CRT
Refer to Figure 5-2.
NOTE: Before you remove the CRT, discharge the
anode lead. Refer to the Caution/Warnings on Page
. II,
The CRT is fastened to the front panel with four
screws. To remove the CRT:
•
•
•
Remove the CRT socket board.
Remove the CRT high voltage lead.
Remove the four screws (G) that hold the CRT
to the front panel.