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After Sales
Technical Documentation
RAE/RAK–1N
Faultfinding/Disassembly
Page 8 – 22
Original, 05/97
First check the connection:
During startup the CPU (D130) enables the RS–buffer MAX3222 (D180)
by setting the RSENX (D180/pin1) low, RSSHDX (D180/pin20) high and
the IRSHD (M180/pin6) high. The signals RSENX and the RSSHDX are
toggled for the period of time that the CPU waits for a ping from the host,
typically 3.5s. Check if this happens and whether the signal levels are OK.
If the signals are OK, then proceed to 1.7.2. If the CPU does not control
the lines correctly, then proceed to 1.7.1.1
1.7.1.1
Valid Boot Code in UCS Flash?
If the boot code in the D163 is corrupted, then proceed to the 1 .1 If the
Flash is programmed, or it is sure that it contains valid data, and the CPU
doesn’t control the RS–buffer correctly, then proceed to 1.7.1.3
1.7.1.2
Program UCS Flash
If there’s no guarantee that the UCS Flash (D163) contains a valid boot
code, re–programme it with the JTAG method, or change to a good one.
After programming / replacing, return to 1.6
1.7.1.3
CPU, or UCS–Flash Fault
If the CPU (D130) doesn’t control the RS–buffer although there is a valid
boot code in the UCS Flash (D163), then there is a fault either in the CPU,
or in the Flash itself. In most cases the fault is likely to be the CPU, but it
cannot be guaranteed unless the functionality of the UCS Flash is verified
with another system.
1.7.2
Activity in CPU RxD0 ?
If the RS–buffer is activated and the IR–tranceiver TFDS3000 (M180) is
put to active shutdown, then it’s worth checking if the RSRXD line
(D130/pin114 –D180/pin10) is toggling, i.e. are the host’s pings received
this far. If the line is toggling, and the signal levels are OK, then the CPU
receives the ping bytes.
If the RSRXD line is not toggling, but the input of the buffer RXD
(D180/pin9) is toggling, and the buffer control signals are OK, then
proceed to 1.7.2.1. If the RSRXD signal is toggling (in the CPU pin), then
the CPU should be transmitting acknowledgement bytes to the host. In the
case proceed to 1.7.3
1.7.2.1
RS–Buffer Fault
In the case that the signals seem to stop to the buffer (D130), although the
buffer control signals are set OK, then the buffer is likely to be defective.
Содержание 9000i
Страница 7: ...After Sales Technical Documentation RAE RAK 1N Series Original 08 96 Chapter 1 Overview ...
Страница 67: ...After Sales Technical Documentation RAE RAK 1N Series Amendment 1 04 97 Chapter 3 Transceiver GE8 GE9 RF Block ...
Страница 93: ...After Sales Technical Documentation RAE RAK 1N Series Chapter 4 Transceiver GE8 GE9 UIF Module ...
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Страница 107: ...After Sales Technical Documentation RAE RAK 1N Series Original 08 96 Chapter 5 Transceiver GE8 GE9 SIM Flex Module ...
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Страница 113: ...After Sales Technical Documentation RAE RAK 1N Series Original 08 96 Chapter 6 PDA Hardware Module GP1 ...
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Страница 158: ...After Sales Technical Documentation RAE RAK 1N PDA Hardware Page 6 46 Original 08 96 This page intentionally left blank ...
Страница 159: ...After Sales Technical Documentation RAE RAK 1N Series Amendment 1 04 97 Chapter 7 Service Software ...
Страница 243: ...After Sales Technical Documentation RAE RAK 1N Series Original 05 97 Chapter 8 Faultfinding Disassembly ...
Страница 287: ...After Sales Technical Documentation RAE RAK 1N Series Original 08 96 Chapter 9 Service Tools ...
Страница 301: ...After Sales Technical Documentation RAE 1N Series Original 04 97 Chapter 10 Schematics ...
Страница 303: ...RAE 1N Original 08 96 10 11 Page 1 Figure 1 Component Layout Bottom ...
Страница 304: ...RAE 1N Original 08 96 10 12 Page Figure 2 Component Layout Top ...
Страница 305: ...RAE 1N Original 08 96 10 13 Page Figure 3 Baseband Circuit Diagram PWRU ...
Страница 306: ...RAE 1N Original 08 96 10 14 Page Figure 4 Baseband Circuit Diagram MCM1 ...
Страница 307: ...RAE 1N Original 08 96 10 15 Page Figure 5 Baseband Circuit Diagram MCM2 ...
Страница 308: ...RAE 1N Original 08 96 10 16 Page Figure 6 RF TX Circuit Diagram ...
Страница 309: ...RAE 1N Original 08 96 10 17 Page Figure 7 RF RX Circuit Diagram ...
Страница 310: ...RAK 1N 10 20 Page Amendment 1 04 97 Figure 18 PCN Component Layout Bottom ...
Страница 311: ...RAK 1N 10 21 Page Amendment 1 04 97 Figure 19 PCN Component Layout Top ...
Страница 312: ...RAK 1N 10 22 Page Amendment 1 04 97 Figure 20 PCN RF TX ...
Страница 313: ...RAK 1N 10 23 Page Amendment 1 04 97 Figure 21 PCN RF RX ...
Страница 314: ...RAK 1N 10 24 Page Amendment 1 04 97 Figure 22 UIF Schematic PCN ...
Страница 315: ...RAK 1N 10 25 Page Amendment 1 04 97 Figure 23 UIF Component Layout PCN ...
Страница 316: ...RAE 1N Original 05 97 10 3 Page Figure 1 PDA Block Diagram Edit 82 for layout 13a ...
Страница 317: ...RAE 1N Original 05 97 10 4 Page Figure 2 PDA Power Unit PWRU Edit 108 for layout 13a ...
Страница 318: ...RAE 1N Original 05 97 10 5 Page Figure 3 PDA Serial Interface SIRU Edit 24 for layout 13a ...
Страница 319: ...RAE 1N Original 05 97 10 6 Page Figure 4 PDA MCU and Memory PROCU Edit 121 for layout 13a ...
Страница 320: ...RAE 1N Original 05 97 10 7 Page Figure 5 PDA EMIU Edit 21 for layout 13a ...
Страница 321: ...RAE 1N Original 05 97 10 8 Page Figure 6 Keyboard matrix Edit 24 for layout 13a ...
Страница 322: ...RAE 1N Original 05 97 10 9 Page Figure 7 PDA Memory Edit 28 for layout 13a ...
Страница 323: ...RAE 1N Original 05 97 10 10 Page Figure 8 PDA Component Layout 13a ...
Страница 324: ...RAE 1N Original 08 96 10 18 Page Figure 1 UIF Schematic ...
Страница 325: ...RAE 1N Original 08 96 10 19 Page Figure 2 Component Layout Uif ...
Страница 326: ...After Sales Technical Documentation RAE RAK 1N Series Original 08 96 Accessories ...
Страница 340: ...After Sales Technical Documentation RAE RAK 1N Series Original 08 96 CARK60 Installation Guide ...
Страница 352: ...After Sales Technical Documentation Appendix 2 RAE RAK 1N Amendment 1 04 97 PARTS LISTS ...
Страница 399: ...After Sales Technical Documentation RAE RAK 1N Parts Lists Page 48 Amendment 1 04 97 Mechanical Assy Parts RAE 1N ...
Страница 401: ...After Sales Technical Documentation RAE RAK 1N Parts Lists Page 50 Amendment 1 04 97 This page intentionally left blank ...
Страница 402: ...After Sales Technical Documentation Appendix 1 RAE RAK 1N Original 08 96 QUICK GUIDE ...
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