Service manual

78
Pin
Name
Voltage and
Peripheral circuit of pins Description of function
No. wave Information
48 SIF IN/ATT 4.5V
49
AFT
DEFEAT
50 AFT OUT 8.2 to 0.5V
51 VIDEO OUT
Volume control pin.
Applying voltage 0f 2.5v
or more defeats AFT.
Current output type. As
load resistor R is
increased, detector sen-
sitlvity becomes higher
but offlot becomed larg-
er.
Output at 1.4Vp-p 1.75V
is applied to sink tip.
DESCRIPTION OF PIN (cont).
10k
23.3k
4.5V
10k
10k
2.4k
15k
29.3p
20p
1k
7.5k
12.5k
32.5k
2.7k
250