Philips PM2521 Service Manual page 51

53
BIT
NO
B7
B6 B5 B4 B3 B2
B1
BO B7
B6
B5
B4 B3
1
B2
B1
BO
PIN
NO
1
3 11
12 10 2
22
13
16 20
23 24
21 17
14
SIGNALS
REA REC REN RED RNGD REB RED
RNGB
rnge'
REE REP
REM RNGC RNGA
REQ
2
VTL
1
1
0
1
0
1
0
1
1
0
1
0
0 0
1
0
20
VTL
0
1
0
1
0
1
0
1 1
0
1
0
0 0
1
0
200
VTL
1 1
0
1
0 0 0
1
1
0
1
0
0 0
1
0
2000
VTL
1
0 0
1
0
1
1 1
1
0
1
0 0 0
1
0
2
V
s
1
1
0 0 0
1
0
1 1
0
1
0 0 0
1
0
20
Vs
0
1
0 0 0
1
0
1 1
0
1
0 0 0
1
0
200
Vs
1 1
0
0 0 0
0
1 1
0
1
0 0 0
1
0
2000
V
s
1
0 0 0
0
1 1 1 1
0
1
0 0 0
1
0
2
VHz
1 1
0 0 0
1
0
1
1
0
1
0
0 0
1
0
20
VHz
0
1
0 0
0
1
0
1 1
0
1
0
0 0
1
0
200
VHz
1 1
0 0
0 0
0
1
1
0
1
0 0 0
1
0
2000
VHz
1
0 0 0 0
1
1
1
1
0
1
0 0 0
1
0
°C
1
0 0
1
0
1
0
1
0
1
0
1
0 0
1 1
1 1
0
1
0
1
0
1
1
1
0
1
0
0
1 1
Calibration
AUTOCAL
measi jreme
nts
1
0
0
1
1
0
0
1
0
I
1
0,1V
AUTOCAL
1
0
0
1
1
1
1
1
1
0
1
1
IV
1
ZERO
1 1 1 1
0
1 1
0 0 0
1 1
1 1
200mA
1
ZERO
1
1 1 1
0
1
1
0
0
1 1 1 1
2A
NOTE:
0 =
high imp. relay
or
FET
is
in
(
1
= low
imp. relay or
FET
is
out
(
—
= no
change