Model 3400A
f. Leads on new thermocouples must be shaped before inserting into PC board. During
the shaping process, hold leads between bending point and glass with long-nose pliers.
h. Carefully insert new thermocouple leads and solder.
Table 5-7. Factory Selected Components
eee
eee Pe
C205
Adjust low frequency (10 Hz) response.
100pF
(selected)
C302
Adjust high frequency (10 MHz) of Second Attenuator
12 pF
15 pF
on 0.001 V and 1 V ranges.
C304
Adjust high frequency (3 MHz to 10 MHz) of Second
24 pF
39 pF
Attenuator on 0.3 V and 300 V ranges.
C305
Adjust high frequency (10 MHz) of Second Attenuator
on 0.01 V and 10 V ranges.
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a
oe meee
NOTE on schematic.
200 pF
—
Eee
9
[pala
tenies ae
voltage at collector of Q406 (with no signal in-
put) to 1.5V to 2.5V de.
5-40. SERVICING ETCHED CIRCUIT BOARDS
c. Component lead hole should be cleaned before inserting new lead.
Maintenance