Grey-scale alignment
Grey-scale signal in antenna (or an equivalent signal). Saturation to
minimum. Correct tuning. Disconnect
Slowly adjust P551 so as to obtain a horizontal line slightly lit
(it's advisable to operate in low environmental lighting conditions).
Keeping as reference the colour of the prevailing electron gun of this
line, accurately adjust black-level potentiometers of the other two
electron guns
for red,
for green,
for blue) until the
horizontal line is perfectly white.
Adjust P551 up to the point in which the white
out
(cut-OFF).
Reconnect
If a predominance of a colour is noticeable on the screen, eliminate
it by re-adjusting the black-level potentiometer of the relevant
electron gun involved.
1 7 0 V D C
Fig. 4
Summary of Contents for 22ZT907
Page 1: ...TIP ZANUSSI ZANUSSI Model Chassis 22ZT907 BS 400 2 CHASSIS ZANUSSI SERVICE MANUAL ...
Page 6: ...Rear sockets 27 Auxiliary speaker jack 28 Aerial socket 29 Clock battery recess 3 ...
Page 38: ...j I I i i j I i j I i i j I i i j I i i i i r i 1 I j I i i i i i i i i i i i 1 6 ...
Page 39: ...Teletext printboard ___ _ _ _____ _ _ _ _ _ __ _ I r I I I I I I I I I 1 I I _ ...
Page 40: ...__ ___ _ _ I _ ...
Page 41: ...BS 489 0 ...
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