Figure 15. TS-4320(P)/G board locations and optical module simulator.

Calibration Procedure For Optical Fiber Test Set, Ts-4320(P)/G Page Navigation
25

TB 9-6625-2309-24

(4) Set ON-OFF switch to ON.

NOTE

Allow 15 minutes for TI to warm-up before making voltage

measurements.

(5) Place frequency counter probe tip on solder side of DAS 1A2A4 circuit board at

IC U71, pin 9 (fig. 16). Frequency will be between 24.99925 to 25.00075 MHz; if not, repair

is indicated.