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5500A
Service Manual
1066 (DDE:FR ) A7 Shunt amp fault (3.3 mA)
Suspects include U6 and Z2 on the A7 assembly.
1067 (DDE:FR ) A7 Shunt amp fault (33 mA)
Suspects include U6 and Z2 on the A7 assembly.
1068 (DDE:FR ) A7 Shunt amp fault (330 mA)
Suspects include U6 and Z2 on the A7 assembly.
1069 (DDE:FR ) A7 Shunt amp fault (11A)
Suspects include K14, K15, U5, R12, R17, R47, R53, and R59 on the A7 assembly.
1070 (DDE:FR ) A7 Leakage current fault
Suspects include U5-U8,U16,U19-U20 and U23 on the A7 assembly.
1071 (DDE:FR ) A7 Output amp leakage fault
Suspects include Q2, Q3, Q4, Q6, Q7, Q10, U10, U11, U13, U14, and U17 on the A7
assembly. On the A97 SIP assembly, suspects include Q6, Q9, Q18, Q19, U2, and U3.
1072 (DDE:FR ) A7 Undercurrent fault +3.3 mA
Suspects include U19, U21, and the A97 SIP assembly on the A7 assembly.
1073 (DDE:FR ) A7 Overcurrent fault +3.3 mA
Suspects include U19, U21, and the A97 SIP assembly on the A7 assembly.
1074 (DDE:FR ) A7 Undercurrent fault -3.3 mA
Suspects include R7, R13, Q6, and U3 on the A97 assembly.
1075 (DDE:FR ) A7 Overcurrent fault -3.3 mA
Suspects include R7, R13, Q6, and U3 on the A97 assembly.
1076 (DDE:FR ) A7 Undercurrent fault +33 mA
Suspects include K5, R27, R30, Q19, and U2 on the A97 assembly.
1077 (DDE:FR ) A7 Overcurrent fault +33 mA
The primary suspect is R30 on the A97 assembly.
1078 (DDE:FR ) A7 Undercurrent fault -33 mA
Suspects include R27, Q18, and U3 on the A97 assembly.
1079 (DDE:FR ) A7 Overcurrent fault -33 mA
Suspects include R27, Q18, and U3 on the A97 assembly.
1082 (DDE:FR ) A7 Undercurrent fault +330 mA
Suspects include K18, R88, R92, R102, R105, Q10, Q1, and U13 on the A7 assembly.
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