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To Check Purity:
Press the Recall Button on the Remote Control when in Service Mode (red "CHK" is displayed) to enter the Purity
Field Check Mode.
Entering Service Mode (Back-Open Method)
1. While the Receiver is ON or Plugged and operating in Normal Mode,
momentarily short test point FA1 (TP8) to Cold Ground (
(TP3) A-Board.
The Receiver enters the Aging Mode .
Yellow letters "CHK" appear in the upper left corner of the CRT.
(The Volume Up/Down will adjust rapidly).
2. Simultaneously press the Action and the Volume Up buttons on the
Receiver Control Panel.
The Receiver enters the Service Mode.
The letter in "CHK" turn red.
(The Volume Up/Down will adjust normally).
(All customer controls are set to nominal level).
NORMAL
SCREEN
Press Recall again to select desired field.
BLUE
GREEN
SCREEN
SCREEN
Figure 21. Purity Check Field Mode.
Helpful Hints
IMPORTANT NOTE:
Always Exit the Service Mode
Following Adjustments.
- 26 -
RED
WHITE
SCREEN
SCREEN
) FA2
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