Transistors used on teletext
Transistors
Type
Electronic functions
T
1
T 2
T 3
T 4
T 6
T 7
T 8
T 10
T
11
T 12
BC 548 B
BC 548 B
BC 548 B
BC 548 B
BC 548 B
BC 548 B
BC 548 B
BC 548 B
BC 548 B
BC 548 B
BC 548 B
BC 548 B
Video preamplifier
Video preamplifier
Video input signal switch
T3 switch enabler
Teletext synchro. switch
Synchro. signal emitter follower
Command inverter
B signal emitter follower
signal emitter follower
R signal emitter follower
Blanking signal emitter follower
Brightness signal emitter follower
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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Page 43: ... I _ r i I 1 I _ _L 12 _L 7 e_ L I illI 46 439 000 2 3 1 5 6 7 8 9 1 0 1 1 1 2 82 W ...
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