Maintenance-213 
Service 
installation 
instructions 
are 
contained 
in 
the 
Troubleshoot-
ing 
Aids 
portion 
of 
this 
section. 
Suggested 
types 
of 
test 
equipment 
useful 
for 
troubleshooting 
are 
as 
follows: 
Digital Multimeter 
1. 
Tektronix 
213 
DMM 
Oscilloscope 
(cannot 
be 
used 
for 
the 
high-voltage 
multiplier). 
Use 
an 
ordinary 
multimeter 
to 
measure 
the 
multiplier 
(e.g. 
Triplette 
Model 
630-NA). 
2. 
Tektronix 
DM 
501 
(requires 
TM 
500-series 
Power 
Mo-
dule. 
See 
Calibration 
section 
Equipment 
Required 
list.) 
Function Generator 
Tektronix 
FG 
501 
(requires 
TM  500-series 
Power 
Module. 
See 
Calibration 
section 
Equipment 
Required 
list.) 
General 
Purpose 
Oscilloscope 
Tektronix 
213 
DMM 
Oscilloscope. 
(Refer 
to 
the 
Tektronix 
Products 
catalog 
for 
other 
oscilloscope 
systems 
with 
charac-
teristics 
similar 
to 
the 
213.) 
Curve Tracer 
Tektronix 
577 
with 
a 
177 
Standard 
Test 
Fixture 
and 
a 
178 
Linear 
IC 
Test 
Fixture. 
Line  Isolation Transformer 
Allied 
Part 
No. 
928-3010. 
Troubleshooting Aids 
A/D 
EXTENDER 
CARD. 
To 
install 
the 
A/D 
Extender 
Card, 
perform 
the 
A/D 
Converter 
Board 
Removal 
steps, 
then 
refer 
to 
Figure 
4-11 
and 
proceed 
as  fol lows: 
1. 
Insert 
the 
A/D 
Converter 
Board 
into 
the 
A/D 
Extender 
Card 
from 
the 
side, 
then 
vertically 
insert 
the 
extender 
card 
into 
the 
Function 
Board. 
2. 
Connect 
the 
extender 
card 
cables (2) 
between 
the 
A/D 
Converter 
Board 
terminal 
pins 
and 
their 
matching terminal 
pin 
sockets 
on 
the 
Power 
Supply 
Board. 
To 
remove 
the 
extender 
card, 
reverse 
the 
installation 
proce-
dure. 
POWER 
SUPPLY 
EXTENDER 
CARD. 
To 
install 
the 
Power 
Supply 
Extender 
Card, 
perform 
the 
Power-Supply 
Board 
steps, 
then 
refer 
to 
Figure 
4-11 
and 
proceed 
as follows: 
4-14 
POWER 
SUPPLY 
EXTENDER 
CARD 
Fig. 
4-11. 
Installation 
of 
extender cards. 
POWER 
SUPPLY 
BOARD 
i) 
1481-28 
1. 
With 
the 
terminal 
pins 
and 
terminal 
sockets 
of 
the 
card 
so~ets 
of 
the 
card 
facing 
upward, 
insert 
the 
card 
onto 
the 
Amplifier 
Board. 
Then 
vertically 
insert 
the 
Power 
Supply 
Board 
onto 
the 
card. 
2. 
Connect 
the 
two-connector 
crt 
terminal 
connector 
hold-
er 
to 
the 
extender 
card, 
and 
the 
extender 
card 
two-connec-
tor 
terminal 
connector 
holder 
to 
the 
Power 
Supply 
Board 
where 
the 
crt 
terminal 
connector 
would 
normally 
have 
been 
connected. 
Connect 
the 
five-connector 
terminal 
connector 
holder 
(terminal 
pins) 
cable 
assembly 
on 
the 
extender 
card 
between 
the 
corresponding 
connections 
on 
the 
Secondary 
Power 
Supply 
and 
Power 
Supply 
Boards. 
NOTE 
At 
this 
point 
the AID Converter Board 
may 
or 
may 
not 
be 
reinstalled with  the 
AID 
Extender 
Card. 
If 
only 
the oscilloscope  functions 
of 
the 
instrument 
are 
to be tested, the 
AID 
Converter 
Board does 
not 
need to be reinstalled;  however, 
if 
it 
is 
not 
reinstalled, the instrument cannot be 
turned on unless a jumper 
is 
installed between 
the Power Supply Board terminal connector 
sockets 
18 
and 
19. 
I 
WARNING 
I 
When Power Supply Board terminal connector 
sockets 
18 
and 
19 
are 
jumpered, the instrument 
cannot 
be 
turned 
off 
with  the POWER switch. 
If 
components or parts 
are 
to be replaced,  the 
batteries and the power line plug should 
be 
dis-
connected. 
REV. 
A, 
MAR. 
1976