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D SERIES CONTROLLER
TROUBLESHOOTING AND COMPONENT REPLACEMENT
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2.0 COMPONENT REPLACEMENT
This chapter describes replacement procedure for parts inside the controller: printed boards,
power blocks, hardware including AVR, etc., and, units.
2.1 General Safety Precautions on Replacement······························································ 2
2.2 Replacement Procedure for Parts in Card Rack ························································· 4
2.2.1 1KA Board (User I/F Board)······················································································ 5
2.2.2 1KB Board (Arm Control Board) ·············································································· 6
2.2.3 1KP Board (Power Sequence Board)········································································· 7
2.2.4 AVR··························································································································· 7
2.2.5 1NR Board (Brake Control Board) ············································································ 9
2.3 Replacement Procedure for Power Block Unit ························································ 10
2.3.1 1KC Power Block Unit···························································································· 10
2.3.2 1KD Power Block Unit (for D3x Controller)··························································· 11
2.3.3 1KD Power Block Unit (for D7x Controller)··························································· 12
2.3.4 1KL Power Block Unit ···························································································· 14
2.3.5 1KR Power Block Unit···························································································· 14
2.4 Replacement Procedure for MC Unit Parts (for D3x Controller)····························· 15
2.4.1 MC Unit··················································································································· 15
2.4.2 1KQ Board (Power Circuit Board) ·········································································· 16
2.5 Replacement Procedure for 1NQ Board (for D7x Controller)·································· 18
2.6 Replacement Procedure for Fan (for D3x Controller)·············································· 19
2.6.1 Fan for Card Rack···································································································· 19
2.6.2 Fans on the Back of Controller ················································································ 20
2.6.2.1 Upper Fan on Back of Controller············································································· 20
2.6.2.2 Lower Fan on Back of Controller ············································································ 21
2.6.3 MC Unit Fan············································································································ 22
2.7 Replacement Procedure for Fan (for D7x Controller)·············································· 23
2.7.1 Fan for Card Rack···································································································· 23
2.7.2 Fan for Power Block Unit························································································ 24
2.7.3 Heat Exchange Fan (for D71/74/77 Controller)······················································· 25
2.8 Replacement Procedure for Batteries······································································· 26
2.8.1 Battery on 1KA Board ····························································································· 26
2.8.2 Battery on 1FG/1HG Board····················································································· 27
2.9 Replacement Procedure for Fuses············································································ 28
2.9.1 Fuses on 1KP Board ································································································ 28
2.9.2 Fuses on 1NQ Board (for D7x Controller)······························································· 29
2.10 Replacement Procedure for Filter ············································································ 30