Adjustment After Repair - Tektronix 7D01 Instruction Manual

Maintenance----71301 (SN B020000 & up)
To replace a damaged pin which is mounted on a single-
layer circuit board, first disconnect any pin connectors .
Then (using Soldering Techniques given earlier in this
section), unsolder the damaged pin and pull it from the
board with a pair of pliers, leaving the ferrule in the hole, if
possible (see Fig . 4-11 ) . If the ferrule remains in the circuit
board, remove the spare ferrule from the replacement pin
and press the new pin into the hole in the circuit board . If
the ferrule is removed with the damaged pin, clean out the
hole using a solder-removing wick and a scribe . Then press
the replacement pin with attached spare ferrule into the
hole . Position the replacement pin in the same manner as
the old pin . Solder the pin to the circuit board on each side
of the board . If the old pin was bent at an angle to mate
with a connector, carefully bend the new pin to the same
angle . Replace the pin connector .
Sample Interval Indicator Incandescent Bulb and
TRIG'D LED
Lights are mounted on the sub-panel using a plastic sleeve .
Unsolder the lead wires and pull the bulb out of the sleeve
from the rear of the sub-panel .
After any electrical component has been replaced, the
adjustment of that particular circuit should be checked, as
well as other closely related circuits . See Section 5 for a
complete adjustment procedure .
Only experienced service personnel should re-
place circuit-board pins on multi-layer boards.
Therefore, refer repairs of the Word Recognizer,
Memory, Output, and Cursor circuit boards to
your local Tektronix Field Office or
representative.
ADJUSTMENT AFTER REPAIR
PROPER
PLACEMENT OF
FERRULES IN
CIRCUIT BOARD
1967-5
Figure 4-11 . Exploded view of circuit-board pin and ferrule .