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TM-9-1240-216-34 Maintenance Manual M19 and M24 Persicope Download

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TM 9-1240-216-34 CHAPTER 4 FAULT ISOLATION PROCEDURES 4-1. SCOPE This chapter gives step-by-step procedures to troubleshoot the fault symptoms found during checkout. After you replace the part, do the checkout procedure in Chapter 2 again. This is to make sure the new part has fixed the problem. 4-2. NO IMAGE (IN ONE OR BOTH EYEPIECES) WHEN POWER SUPPLY IS ON (SHEET 1 OF 5) APPLICABLE CONFIGURATIONS: M19 and M24 old configurations . TEST EQUIPMENT High voltage power supply (tank) Multimeter 0-36 VDC power supply High voltage cable PERSONNEL: One REFERENCES: JPG 41C for: Using 0-36 VDC power supply Using multimeter EQUIPMENT CONDITION: Body assembly on work bench with head assembly installed; power PRELIMINARY PROCEDURES: Assemble power supplies (App B) NOTE This procedure is for both the M19 and M24 periscopes. The M24 is pictured. Vol I Para 4-1 4-1