Figure 2-7. Interconnections for encoder unit tests.

TM 11-6825-2937-13

oscilloscope from pin H2 and F8 (gnd) of MODULE

tester to down position and observe the following:

1. TEST switch indicator on digital tester

TEST connector.

5. Reconnect channel B of oscilloscope

lights.

2. TEST ON indicator on control-interface unit

between pin H7 and F8 (gnd) of MODULE TEST

connector.

lights.

6. Adjust oscilloscope controls so that

3. All MODE/POWER indicators on control-

waveforms displayed clearly show displacement between

interface unit flash twice and TEST NUMBER indicates

signals monitored. Displacement should be less than

88.8.

4. At end of BITE test, TEST NUMBER

100 ns (B, fig. 5-2).

7. Remove oscilloscope leads from MODULE

indicator reads 00.5.

5. PASS indicator on digital tester fights at the

TEST connector.

(f) Set control-interface unit and digital tester

end of test.

(e) Perform phase-displacement check as

controls in accordance with table 2-4.

d. Digital Tester Self Test. To perform a

follows:

1. On the control-interface unit, connect

digital tester self test, refer to TM 11-6625-2951-13.

e. General Operating Procedures. A typical

channel A of oscilloscope between pin HI and pin FS

procedure for performing a standard logic card test is

(gnd) of MODULE TEST connector.

contained in d below. Figures 2-7 and 2-8 show

2. Connect channel B of oscilloscope between

interconnections for encoder and decoder unit tests,

pin H2 and pin FS (sod) of MODULE TEST connector.

3. Adjust oscilloscope controls so that

respectively. For detailed procedures for performing unit

tests and microprocessor, standard logic and analog

waveforms displayed clearly show displacement between

circuit card tests, refer to TM 11-5841-287-30 (encoder)

signals monitored. Displacement should be less than

and TM 11-5840-361-30 (decoder).

100 ns (A, fig 5-2).

4. Disconnect

channel

Figure 2-7. Interconnections for encoder unit tests.

Figure 2-8. Interconnections for decoder unit tests.

Typical Standard Logic Card Test. To

POWER and PROGRAM ERROR (red) indicators fight.

(4) Place UUT POWER switch-indicator on

perform a typical standard logic card test on a decoder

digital tester to up position (N) and observe that UUT

card proceed as follows:

POWER indicator lights.

(1) Interconnect test set group in accordance

(5) Place POWER ON/OFF switch on control-

with figure 2-9.

interface unit to ON and observe that POWER ON

(2) Set control-interface unit and digital tester

indicator lights.

controls in accordance with table 2-4.

(6) Place MODE SELECT switch on control-

(3) Place POWER switch-indicator on digital

interface unit to applicable MODULE TEST position

tester to up position (ON) and observe that

(ENC,

2-11