TM 10-3930-669-20 WARNING Remove all jewelry such as rings, dog tags, bracelets, etc.  If jewelry contacts battery terminal, a direct short may result in instant heating of tools, damage to equipment, and injury or death to personnel. VOLTAGE TEST (1)   Remove instrument panel (Para 7-8). (2)   Set  multimeter  select  switch  to  VOLTS DC. (3)   Connect  positive  (+)  multimeter  lead  to broken belt buzzer, (+) terminal. (4)   Connect negative (-) multimeter lead to a known good ground. (5)   Set     MAIN     POWER     switch     to     ON position (TM 10-3930-669-10). (6)   Set   engine   switch   to   ignition   position (TM 10-3930-669-10). (a)   If    there    are    not    22    to    24    vdc present,  perform  Steps  (7)  through (9) below, repair wire 8 (see schematic   Appendix   F)   and   go   to Step 4 of this Fault. (b)   If  there  are  22  to  24  vdc  present, perform Steps (7) through (9) below and  repair  buzzer  ground  wire  (see schematic Appendix F). (7)   Set engine switch to off position. (8)   Set    MAIN    POWER    switch    to    OFF position. (9)   Install instrument panel (Para 7-8). VERIFY REPAIR (1)   Set     MAIN     POWER     switch     to     ON position (TM 10-3930-669-10). (2)   Set   engine   switch   to   ignition   position (TM 10-3930-669-10). (3)   Listen for buzz from broken belt buzzer. (a)   If buzzer does not operate, fault not corrected.    Perform  Steps  (4)  and (5) below and repeat procedure and notify Supervisor. (b)   If buzzer operates, fault corrected. (4)   Set engine switch to off position. (5)   Set    MAIN    POWER    switch    to    OFF position. 2-249