IBM 6546(G54) free download

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11 Schematic Diagrams 11-1 Cautions 1. The areas marked with a ! , or on the schematic diagram designate components which have special characteristics important for safety. Replace these parts only with parts identical to those in the original circuit and those specified in the parts list. Before replacing any of these components, carefully read the ТProduct Safety Notice.У 2. Areas marked with a on the schematic diagram designate controls which have been sealed for safety during manufacturing. If these controls need adjustment, they must be replaced with new controls and then sealed after their adjustment. 3. When taking measurements, pay special attention to the following: 1) Do not use your instrument between primary ground (symbol 2) Do not use your instrument between secondary ground (symbol ) and secondary circuit. ) and primary circuit. 11-2 Notes 1. Resistance is shown in OHM. K = 1,000, M = 1,000,000 and the rated power of resistors not noted in the schematic diagram is 1/4W. 2. Capacitance is shown in µF. Capacitances not otherwise noted are shown in pF (1µF = 1,000,000 pF). Rated voltage of condensers not otherwise noted in the schematic diagram is 50 V. 11-3 Abbreviations and Symbols MO FU CM MP P R-Metal Oxide Fusible R-Cement C-Metalized Polyester C-Polyester Hot Ground Electrostatically Sensitive Device (ESD) ! WW C MPP T R-Wire Wound R-Composition Metal Polypropylene C-Tantalum Can emit X-radiation Cold Ground Provides special safety considerations 1. The secondary voltage is read with an SSVM from the indicated point to a cold ground ( ). The primary voltage is read with an SSVM from the indicated point to a hot ground ( ). 2. This schematic diagram is subject to change without notice. CKB5237L/7227L 11-1 11 Schematic Diagrams 11-4 Main Schematic Diagram 27 R503_7 R500_7 R502_7 R535 25 Q500_7 R504_7 C537_7 C540_7 R505_7 C538 C543_7 R501 17" ONLY 15" ONLY 26 24 D524_7 R506 C522_7 28 R201_7 23 R302 L501 22 21 29 20 R310 19 R517 5 7 6 R444_7 R441_7 C456 16 10 C422 L406 15 8 C432 C434 C458 L401 Q417_7 C455_5 R425 R443 R467_7 L402 9 C465_7 R417 C419 R451 1 R450 R409 R414 14 11 2 R613 12 3 R315 13 4 11-2 CKB5237L/7227L 11 Schematic Diagrams 1 14 V (T601, #1), 110V 2 DC V (IC602, #3) 3 292 V (T601 #5), 110V 4 3.68 V (C612, ­), 110V 1 DC V (T601, #2), 220V 2 DC V (IC602, #3), 220V 3 444 V (T601, #5), 220V 4 3.80 V (C612, ­), 220V CH1 P-P = 14 V CH1 RMS = 142.6 V CH1 P-P = DC V CH1 RMS = DC V CH1 P-P = 292 V CH1 RMS = 181.6 V CH1 P-P = 3.68 V CH1 RMS = 840 mV CH1 P-P = DC V CH1 RMS = DC V CH1 P-P = DC V CH1 RMS = DC V CH1 P-P = 444 V CH1 RMS = 354.2 V CH1 P-P = 3.80V CH1 RMS = 902 mV 5 12.0 V (IC302, #28) 6 8.80 V (IC302, #26) 7 640 mV (IC302, #24) 8 3.12 V (IC302, #23) 9 928 mV (IC302, #16) 10 2.56 V (IC302, #12) 11 124.8 V (T401, #1) 12 10.0 V (Q406, Base) CH1 P-P = 12.0 V CH1 RMS = 6.912 V CH1 P-P = 8.80 V CH1 RMS = 6.176 V CH1 P-P = 640 mV CH1 RMS = 2.908 V CH1 P-