Datascope Passport - Mindray

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Theory of Operation Passport 2 NIBP Module (P/N 0670-00-0730 or 0670-00-0746-01) The EEPROM will be programmed using a PC based program script to download hardware and software revision history. The HC16Z1 software can detect bad sector data in the serial EEPROM using checksums which can be verified during initialization. 2.15.16 Hardware Locks 2.15.17 Reset The EEPROM are hardware write protected by installing jumper J3 (JMODE* signal line). Removing J3 will automatically remove the hardware write protection feature allowing the device to be written while in one of the auxiliary modes. Low Power Reset, U8 2.15.18 Host Reset A Dallas Semiconductor DS1811 device monitors the PCB’s VCC voltage and activates RST* before it falls below 4.5V. Since the HC16Z1 timing characteristics are specified with VCC at 5V+/-10%, a valid VCC voltage is guaranteed while the device is out of reset. The flash is also reset by RST*, which prevents spurious flash writes during power cycling. The MODRESET* signal from J1 allows the host to reset the main processor (HC16Z1) on the PCB. A NOR gate (U14) inverts the signal and the Q7 FET pulls RST* low when MODRESET* is activated. RST* is pulled up by R17. This resistor’s value was chosen in order to meet the RST* timing requirements of the HC16Z1. If the RST* rise time is too slow, the HC16Z1 will assume there is an external reset and repeatedly drive RST* low itself. This rise time is governed by the capacitive loads on RST* as well. Note, RST* is not connected to the AT90S4433 reset (PROGRAM*) in order to prevent an HC16Z1 reset from bringing the PCB out of the emergency shutdown state. Passport 2®/Passport 2 LT Service Manual 0070-10-0441 2 - 53
SpO 2 Interface Board (Nellcor, Nell-3 and Masimo) Theory of Operation 2.16 SpO 2 Interface Board (Nellcor, Nell-3 and Masimo) The SpO2 Interface board provides the communications path for the two-way data flow between the SpO2 modules and the Passport 2 CPU Control Module. The SpO2 module analyzes the analog input from the SpO2 sensor and outputs the data in digital format via a serial digital interface. The SpO2 Interface board addresses the different power requirements, as well as the different connector pin assignments for each of the three SpO2 modules. The SpO2 interface board provides SCI UART host communication to the SpO2 modules. It serves simply as an adapter. The signals pass through unchanged. The SpO2 interface board will be specifically configured for the SpO2 module it is interfacing with. This may include different jumper settings, different feedback resistor options, custom ribbon cables, etc. Patient isolation is provided on the Passport 2 CPU Control Module, so it is not needed on this SpO2 interface board. 2 - 54 0070-10-0441 Passport 2®/Passport 2 LT Service Manual
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Datascope Passport® Datascope Pass
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FilterLine ® is a U.S. registered
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Table of Contents Respiration .....
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Table of Contents Calibration Proce
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Introduction Warning This page inte
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Controls, Indicators And Connectors
Page 13 and 14: CPU Control Module Theory of Operat
Page 23 and 24: Front End Module Theory of Operatio
Page 33 and 34: NIBP Module (P/N 0997-00-0501) Theo
Page 41 and 42: Patient Connector Board AAMI Theory
Page 43 and 44: Patient Connector Board H.P. Theory
Page 45 and 46: XE-50 Recorder Interface Board Theo
Page 47 and 48: Power Supply Theory of Operation 2.
Page 49 and 50: Power Supply Theory of Operation Th
Page 51 and 52: El Display Interface Board Theory o
Page 53 and 54: Passport 2 Passive Display/Keypad I
Page 55 and 56: NEC 10.4” Display/Keypad Interfac
Page 57 and 58: Passport 2 NIBP Module (P/N 0670-00
Page 63: Passport 2 NIBP Module (P/N 0670-00
Page 67 and 68: SpO 2 UART Serial Interface Theory
Page 69 and 70: Safety Precautions Repair Informati
Page 75 and 76: Disassembly Instructions Repair Inf
Page 93 and 94: 12 Lead Card and Cable Assembly P/N
Page 95 and 96: 6A 6B 8 59 56 58 54 NEC TFT LCD Dis
Page 97 and 98: 6A 6B START KEYPAD INSTALLATION AT
Page 99 and 100: Parts List Front Housing Replacemen
Page 109 and 110: Parts List Rear Housing Replacement
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Parts List Rear Housing Replacement
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Communication Ports Parts List Repl
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Calibration Introduction Calibratio
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Diagnostics Calibration Procedure 6
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Verification Calibration Procedure
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Preventive Maintenance Schedule Pre
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Sterilization and Cleaning of Reusa
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How to Get Help Preventive Maintena
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References Preventive Maintenance S
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Warranty Preventive Maintenance 7.1
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Printed in U.S.A. 0070-10-0441 Rev
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