Troubleshooting Aids - Tektronix 213 DMM Instruction Manual

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