Telefunken TKP2198USM Service Manual page 19

Chasis nx-56 version p
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3.2 RF AGC alignment
3.2.1 Method 1
A. Connect the detector as shown below (Picture 3.2) to collector of Q101.
B. Receive a grey scale signal with 70dBμV amplitude.
C. Enter P-Mode, press "6" key on RC to select "AGCT".
D. Adjust AGCT item until the output of the detector becomes 0.8Vpp
3.2.2 Method 2
A. Receive a grey scale signal with 60dBμV amplitude.
B. Enter P-Mode, press "6" key on RC to select "AGCT".
C. Adjust the "AGCT" value until the hint display "AGC" just change between "0" and "1".
3.3 Screen & Focus adjustment
Note: Alignment below should be done after 15 minutes warm up of TV.
1. Input cross hatch pattern signal to RF input.
2. Enter P-Mode.
2. Press "0" key on the RC and the screen will become a horizontal line.
3. Adjust the "SCREEN" VR of the FBT until the horizontal line can just be seen barely
(minimum visible intensity).
4. Press "0" key again on the RC to exit the screen voltage adjustment mode.
5. Adjust the "FCOUS" VR of the FBT until the vertical line and horizontal line becomes
clear, like picture 3.3.
NX56-AP&NX56B-AP
Chassis Name
2008-01-18
Issued on
2009-04-24
Updated on
Collector
of Q101
Picture 3.2
Picture 3.3
Serial No.
Page
Version
To CRO
Page 8 of 17
4.0

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