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PHILIPS
Scientific
&
Analytical
Equipment
Test
&
Measuring Instruments
Industrial
Automation
Advanced Automation
Systems
Welding
Scientific
&
Industrial
Equipment
Division
820607
PM2521/22
SME94
Already
issued
:
SME93
Re
:
Service
documentation
for
the battery
power
supply
The
service
manual
of the
PM2521
together
with
this
information sheet comprise the
service
manual
for the
PM2521/22.
CONTENTS
1.
CIRCUIT DESCRIPTION
1.1.
General
1.2.
Charging
circuit
1
.3.
Level
convertors
1.4.
Schmitt
trigger
2.
ACCESS
3.
FAULT-FINDING
4.
CHECKING
AND
ADJUSTING
5.
PARTS
LIST
5.1.
Resistors
5.2.
Capacitors
5.3.
Semiconductors
5.4.
Integrated
circuits
5.5.
Miscellaneous
CIRCUIT
DIAGRAMS
9499 478
12511
PRINTED
IN
THE
NETHERLANDS
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