Teledyne 514 Instruction Manual page 46

5.0 Maintenance & Troubleshooting
Ref. Desig.
Detector Module
R7
(20K)
R12
(500 ohms)
R15
(1K)
R26
(10K)
R7, R9
(2K each)
R16
(1K)
R36
(20K)
R10, R11
(2K each)
R3
(10K)
P2
(10K)
Control Module
R1
(10K)
R5
(5K)
R2
(10K)
5–8
Teledyne Analytical Instruments
A Business Unit of Teledyne Electronic Technologies
Secondary Adjustments
Location
E-to-I Converter
(sch. B-14075)
E-to-I Converter
(sch. B-14075)
Log Amplifier
(sch. C-14907)
Log Amplifier
(sch. C-14907)
Log Amplifier
(sch. C-14907)
Log Amplifier
(sch. C-14586)
Log Amplifier
(sch. C-14586)
Log Amplifier
(sch. C-14586)
Peak Level Detector
(sch. B-14554)
Automatic Gain Control
(sch. B-14564)
Extended Voltage Amplifier
(sch. B-16221)
Extended Voltage Amplifier
(sch. B-16221)
Alarm Comparator
(sch. B-14718)
Function
Zero adjustment—adjusts output at 10
mA for 0 VDC input.
Balance adjustment—adjusts output at
20 mA for 0.5 VDC input.
Span adjustment (coupled with factory
select R8 and R16)—adjusts output of
A2 for 0.4 VDC full scale.
Meter trim adjustment—adjusts meter
driver and amplifier.
Balance adjustments for logarithmic
amplifier A1 (see Note 1).
Span adjustment (coupled with factory
select R13 and R17)—adjusts output of
A7 (signal to E-to-I converter) for 0.4
VDC full scale.
Meter trim adjustment—adjusts meter
driver and amplifier.
Balance adjustments for logarithmic
amplifier A1 (see Note 2).
Peak level balancing adjustment—
balances signal levels of reference and
measuring voltages (on local calibration
meter).
Reference voltage level adjustment for
automatic gain circuit—sets the voltage
to whlch the auto. gain control will hold
the reference peaks. To set, switch
calibration meter to "reference" and read
the reference level on the meter. Adjust
for +9 VDC which is the nominal value
used.
Adjusts offset of Q1 amplifier.
Meter trim potentiometer.
Alarrn setpoint trim potentiometer.