Datascope Passport 2 - Page 5

Passport 2®/Passport 2 LT™ Service Manual 0070-10-0441 iii
Table of Contents
5V Regulator (U4).................................................................................................................................... 2 - 35
Power Supply ................................................................................................................................................. 2 - 36
Part Numbers 0014-00-0250 and 0014-00-0190-01 .................................................................................. 2-36
Part Number 0014-00-0251..................................................................................................................... 2 - 37
Communication Isolation.................................................................................................................................. 2 - 39
El Display Interface Board................................................................................................................................ 2 - 40
Overview ............................................................................................................................................... 2 - 40
Detailed Description................................................................................................................................. 2 - 40
Passport 2 Passive Display/Keypad Interface Board............................................................................................ 2 - 41
Overview ............................................................................................................................................... 2 - 41
Detailed Description................................................................................................................................. 2 - 41
NEC 10.4” Display/Keypad Interface Board ..................................................................................................... 2 - 43
Video Display Interface ............................................................................................................................ 2 - 43
TFT Inverter Interface ................................................................................................................................ 2 - 43
Speaker Interface .................................................................................................................................... 2 - 44
Encoder Interface .................................................................................................................................... 2 - 44
The CPLD Interface to the CPU Board VIA SPI.............................................................................................. 2 - 45
Passport 2 NIBP Module (P/N 0670-00-0730 or 0670-00-0746-01).................................................................... 2-46
Pneumatic System Control......................................................................................................................... 2 - 46
Pressure Transducer, PT1 .......................................................................................................................... 2 - 47
ADC, U2 ................................................................................................................................................ 2 - 47
DAC ...................................................................................................................................................... 2 - 48
Pump, M1 .............................................................................................................................................. 2 - 48
Dump Valve, V1...................................................................................................................................... 2 - 48
Linear Valve, V2...................................................................................................................................... 2 - 48
Over-Pressure Detection............................................................................................................................ 2 - 49
Pressure Transducer, PT2 .......................................................................................................................... 2 - 50
12VSW Circuitry, Q1, Q2 ....................................................................................................................... 2 - 50
Primary Microcontroller, U10.................................................................................................................... 2 - 50
Secondary Microcontroller, U4 ................................................................................................................. 2 - 51
Memory ................................................................................................................................................. 2 - 52
CMOS Static RAM, U5 ............................................................................................................................ 2 - 52
CMOS EEPROM, U9 ............................................................................................................................... 2 - 52
Hardware Locks ...................................................................................................................................... 2 - 53
Reset...................................................................................................................................................... 2 - 53
Host Reset............................................................................................................................................... 2 - 53
SpO
2
Interface Board (Nellcor, Nell-3
™
and Masimo)......................................................................................... 2 - 54
Power Supply ................................................................................................................................................. 2 - 55
SpO
2
UART Serial Interface ............................................................................................................................. 2 - 56
Panel Interface Extension Connector........................................................................................................... 2 - 56
Repair Information ........................................................................................................... 3 - 1
Introduction.................................................................................................................................................... 3 - 1
Safety Precautions........................................................................................................................................... 3 - 1
Troubleshooting Guidelines .............................................................................................................................. 3 - 7
Exchange Programs ........................................................................................................................................ 3 - 7
Special Tools Required .................................................................................................................................... 3 - 7
Disassembly Instructions................................................................................................................................... 3 - 8
Assembly and Schematic Diagrams................................................................................... 4 - 1
Replacement Parts ............................................................................................................ 5 - 1
Parts List Front Housing .................................................................................................................................... 5 - 5
Parts List Rear Housing..................................................................................................................................... 5 - 15
Communication Ports Parts List .......................................................................................................................... 5 - 25