Trio VT-121 - Page 7

INPUT
RANGE
SELECT
@
1ST IMPEDANCE 2ND
ATT ~ CONVERTER f-+ ATT 1----+
Q) Cl> Q)
ATT
CONTROL
@
3RD OUTPUT
OUTPUT
ATT f- MAl N AMP ............. ...., AMP 1--....._---+~-o~
@ @ @
RELATIVE
- REF CONTROL ----,
@ <
1>> RELATIVE
/j REF
ABSOLUTE-
MEAN
VALUE DET
(J)
METER
t---<--; ,....-{
ACIOOV/ 120V / 220V/ 240V n-----1
POWER
SUPPLY
@
t----+- DC 5 V
Figure 1 - Block Diagram.
50/60Hz o-----1
GND
.,__,. -ocsv
.__ ___ _
7