NEC Barracuda Service Manual page 131

Pda
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8.4 Rocketeer Socket Error
Symptom:
An error occurs when a PDA Rocketeer device is installed.
Rocketeer
Socket Error
Rocketeer
Socket Error
Try another known good
Try another known good
Rocketeer
Rocketeer
Device And Test again.
Device And Test again.
Is the Rocketeer Device
Working Property?
No
No
Replace
Replace
Motherboard
Motherboard
Barracuda PDA Maintenance
Replace the
Yes
Yes
Faulty
Rocketeer
Device
END
Board-
Board
Troubleshooting
Troubleshooting
Check the following parts for cold solder or one of the following parts on
the mother-board may be defective, use an oscilloscope to check the
following signal or replace the parts one at a time and test after each
replacement.
Parts:
Signals:
J15
VCC_3VSB
U5
VCC3
U7
VCC_P+
U6
SA_D[0:15]
U8
SA_A[0:25]
U9
SA_D[16:31]
U10
SA_PWE#
U12
SA_POE#
U13
SA_PIOW#
R203
SA_PIOR#
R204
SA_PSKTSE#
U22
SA_PWAIT#
U3
SA_IOIS16#
SA_PCE2#
SA_PCE1#
-
level
level
SA_PREG#
EXT_A[0:25]
EXT_BUS_ON#
EXT_PSKTSE#
EXT_BUS_DIR
EXT_PREG#
JTAG_TCK
EXT_POE#
JTAG_TDO
EXT_PWE#
JTAG_TDI
EXT_PIOR#
JTAG_TMS
EXT_PIOW#
SLOT0_EN0
EXT_D[0:15]
SLOT0_EN1
EXT_PCE1#
COM3_DCD#
EXT_PCE2#
COM3_DSR#
EXT_RST1
COM3_RI
EXT_PWAIT#
COM3_CTS#
EXT_IOIS16#
COM3_DTR#
EXT_IN_L
COM3_RTS#
EXT_IN_R
130

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