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TROUBLESHOOTING AND REPAIR |
CONTACTOR & CONTACTOR PC BOARD TEST (continued)
FIGURE F.16 CONTROL BOARD (L12253-[ ])
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| R108 |
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| C34 |
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D55 |
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R113 | D52 | D47 | C40 | C32 | R55 | R90 | R70 | C22 | D53 | R85 |
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D51 |
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| C43 |
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| X7 |
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| C47 |
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| R96 | C37 |
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| R36 |
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| Q7 | R75 | |
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| R84 |
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R66 | C31 | R86 | R94 |
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R101 | R104 | R99 | R100 | R105 | R102 | R103 |
R98 |
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D20 | R76 | R77 | R79 | R78 | R83 | R81 | R80 | R82 |
| T1 |
| C36 | X6 |
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| Q1 | R65 | D19 | R62 |
| R27 | R21 |
| R4 | C6 | D8 | R17 | R18 | R20 | R67 | CONTROL |
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| DZ1 |
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| C30 |
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| D7 |
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| D43 | D22 |
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| C44 |
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| C35 |
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| D21 | R69 | D29 | C5 | R33 |
| R24 | R64 |
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| C19 | R15 | R60 |
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| T2 |
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| C41 |
| C33 |
| D56 |
| DZ13 | DZ14 |
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| D9 |
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| D34 | R61 |
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| C27 |
| R32 | R23 | R14 |
| R63 | R59 |
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| R19 | R72 | D6 | C21 |
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| R115 | D35 |
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| D28 | C3 | C2 | D42 |
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| C10 | R88 | R89 | R114 |
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| R121 |
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| C17 |
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DZ11 |
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| D12 | D13 | R13 | C14 | R71 |
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| D41 |
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| D3 |
| D46 |
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| Q10 | R119 |
| R22 | R74 | C8 | D25 |
| R9 | R48 |
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| X4 |
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| X3 | C15 |
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| C16 | R16 |
| C7 |
| D24 | R7 | C12 | R11 |
| D11 |
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| D36 | D17 | R12 | C13 | D18 | ||
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Return to
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R107 | R97 | C24 | R95 | C20 |
| R34 |
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D48 |
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| R37 |
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| D44 | C29 | TP1 |
C39 | 667 | |
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J1 
C1 |
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DZ2 |
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R5 | D2 |
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Q4 |
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J3 |
R38 | D27 | R73 | C9 | D39 | R31 | R116 | C48 | R117 | R118 | Q9 |
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| D26 | R3 | D10 | D15 | D16 | R54 | R46 |
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| R49 | R45 | R52 | R53 |
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| D37 | D14 | C23 | R25 | R26 |
| R10 | C11 | R50 | R51 | D32 | R28 | D4 | R44 | R30 |
| Q6 |
| D5 | R43 | R29 | Q5 |
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| 555 |
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| J14 |
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J4 | C46 | |
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Return to Section TOC
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Return to Master TOC
Return to Master TOC
500 512 | Contactor | 690 |
1.Check to be sure that plug P14 is connected to the Control Board and is secure.
2.Apply at least 25vdc but no more than 100vdc to the
3.Check for the applied voltage at Plug J1 pins 1 and 3 (leads 667+ and
4.With the Trigger closed and a normally operating contactor connectedthe voltag measured at Pins 1 and 9 of J14 should be approximately 1.0VDC. If not, the Control Board may be defective.
