Philips PM2519 - Page 60

4.2.5. Adc part test
SET THE
INSTRUMENT IN
POSITION A=
SUPPLY 20mA TO
THE VQmA AND
THE O SOCKET
CORRECT VOLTAGE
(-18mV) ON
JUNCTION OF
R1209 AND R1212 ?
CHECK R1303,
SWITCH PCB N1
AND FUSE F1300
SUPPLY 200mA TO
THE V2mA AND
THE 0 SOCKET
CORRECT VOLTAGE
{-180mV) ON CHECK D1703
JUNCTION OF PIN 14 (RNGE} 20 mA 18 mV
R1i209 AND R1212 ? 200 mA 180 mV
YES
CHECK
ADC PART
ST4L24 0=-9V
840629 1= OV
NOTE: Measurement zero is the low socket.