TB 9-6695-281-35
(2) Set TI RESISTANCE and VOLTAGE selector switch to 12V.
(3) Adjust resistance standard (A3) for 500.00 ohms.
(4) Adjust COARSE rheostat for full- scale (red line) indication on TI voltmeter. If
digital voltmeter (A1) does not indicate between 13.750 and 14.750 V, perform b below.
(5) Repeat technique of (3) and (4) above for resistance and voltage selector switch
positions listed in table 5. Digital voltmeter will indicate within limits specified.
(6) Set TI RESISTANCE and VOLTAGE selector switch to OFF.
b. Adjustments
(1) Set TI COARSE rheostat for a 14.25 V indication on digital voltmeter (A1) and
adjust magnetic shunt (located on back of meter on some models) or R10 (located on circuit
board behind meter on other models) for red line indication on TI meter.
(2) Repeat 9a above.
Figure 1. Voltage test - equipment setup.
Table 5. Voltage Check
Digital voltmeter indications
Test instrument
(V)
RESISTANCE and
TI voltmeter
VOLTAGE selector
indications
switch positions
(V)
Min
Max
12 V
11.25
10.750
11.750
24 V1
Full scale
28.000
29.000
(red line)
24 V
22.50
22.000
23.000
1Remove
connection from pin D and connect to pin A.
6
