Philips SCOPEMETER PM93 Service Manual page 64

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CIRCUIT DESCRIPTIONS
Channel A AC coupled
Sr1a Sr2a Sr3a Sr4a Sgnd8b Sr1b Sr2b Sr3b Sr4b Sgnd8a mV OHM
100 mV/div
x x x x x
1
0 0 0 0 0 0
1V/div
x x x x x
1
1 0 0 0 0 0
10V/div
x x x x x
0 0 1 1
0 0 0
100V/div
x x x x x
0 1 1 1
0 0 0
GROUND
x x x
x x
0 0
0 1
1 0 0
METER V DC mode
Sr1a Sr2a Sr3a Sr4a Sgnd8b Sr1b Sr2b Sr3b Sr4b Sgnd8a mV OHM
300 mV 0 0 0 1 1 1 1 0 0
0 0 0
3V 0 0 0 1 1 0
0
1 1
0 0 0
30V 0 0 0 1 1
0
1 1 1
0 0 0
300V 0 0 0 1 1
0
1 1 1
0 0 0
METER V AC mode
Sr1a Sr2a Sr3a Sr4a Sgnd8b Sr1b Sr2b Sr3b Sr4b Sgnd8a mV OHM
300 mV 0 0 0 1
1
1 1 0 0 0 0 0
3V 0 0 0 1 1 0 0 1 1
0 0 0
30V 0 0 0 1 1 0 1 1 1
0 0 0
300V 0 0 0 1 1
0
1 1 1
0 0 0
METER V DC + AC mode
Sr1a Sr2a Sr3a Sr4a Sgnd8b Sr1b Sr2b Sr3b Sr4b Sgnd8a
mV OHM
300 mV 0 0 0 1 1 1 1 0 0 0 0 0
3V 0 0 0
1
1 0 0 1 1 0 0 0
30V 0 0 0 1 1 0 1 1 1 0 0 0
300V 0 0 0 1 1
0
1 1 1
0 0 0
METER mV mode (EXTernal inputs)
Sr1a Sr2a Sr3a Sr4a Sgnd8b Sr1b Sr2b Sr3b Sr4b Sgnd8a
mV OHM
300 mV 0 0 0 1
1
0 0 0 1 1 1 0
300V 0 0 0
1 1
0
1
0 1 1 1 0