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To Check Purity:
Press Recall on the Remote Control when in Service
Mode (red "CHK" is displayed) to enter the Purity Field
Check Mode.
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Press Recall again to select desired field.
BLUE
SCREEN
Figure 33. Purity Check Field Mode.
Entering Service Mode (Back-Open Method)
1. While the Receiver is on and operating in Normal Mode, momentarily
short test point FA1 (TP8) to Cold Ground (
T
R
HE
ECEIVER ENTERS THE
Yellow letters "CHK" appear in the upper left corner of the CRT.
(The Volume Up/Down will adjust rapidly).
2. Simultaneously press Action and Volume Up on the Receiver
Control Panel.
T
R
HE
ECEIVER ENTERS THE
The letter in "CHK" turn red.
(The Volume Up/Down will adjust normally).
(All customer controls are set to nominal level).
Always Exit the Service Mode
NORMAL
SCREEN
GRN.
RED
SCREEN
SCREEN
Helpful Hints
) FA2 (TP3) A-Board.
A
GING
S
ERVICE
NOTE
Following Adjustments.
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WHITE
SCREEN
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ODE
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ODE
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