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The manual is useful for trouble shooting for an old instrument. It saved money,and let me enjoy DIY.
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Perfect source of information for replacing the HDD and performing general diagnostics.
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Perfect source of information for replacing the HDD and performing general diagnostics.
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Very good scanned copies. Quick response and reasonable price. Thanks for service!
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FLOW CHART NO.6 HDD+12V is not outputted. Is 14V voltage supplied to the collector of Q2203? Yes Is the "H" pulse inputted to the base of Q1016? Yes Check Q2221,IC2204,D2225 and their periphery, and service it if defective. No Check D2204, D2205, D2212, C2204 and their periphery, and service it if defective. Check the line between the base of Q1016 and Pin (77) of IC1501,and service it if defective.
No
FLOW CHART NO.7 P-ON+10V is not outputted. (HDD+12V is outputted normally.) Is 11V voltage supplied to the base of Q1160? Yes Replace Q1160. No Check D1162 and their periphery, and service it if defective.
FLOW CHART NO.8 EV +10.5V is not outputted. Is HDD+12V outputted normally? Yes Replace Q1163. No See FLOW CHART No.6 <HDD+12V is not outputted.>
FLOW CHART NO.9 AL+9V is not outputted. Is 12V voltage supplied to Pin (3) of IC1002? Yes Replace IC1002. No Check D1170, D1171, D2205, D2212, C2204 and their periphery, and service it if defective.
FLOW CHART NO.10 AL+5V(1) is not outputted. Check D2206,D2207,D2213,C2205,C2216 and their periphery, and service it if defective.
FLOW CHART NO.11 AL+5V is not outputted. (AL+9V is outputted normally.) Is 7V voltage supplied to the collector of Q1508? Yes Is 5.6V voltage supplied to the base of Q1508? Yes Replace Q1508. No No Check D1172, D1173 and their periphery, and service it if defective. Check D1508 and their periphery, and service it if defective.
E2B10TR
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