Faults; No Communication With Bea 050 And/Or Rtm 430; No Communication With The Measurement Unit; No Speed Signal - Bosch BEA 810 Servicing Instructions

4.

Faults

4.1 No communication with BEA 050
and/or RTM 430
i
Information on checking and repair of the BEA 050
and/or the RTM 430 can be found in the following
documentation:
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"BEA 050" 1 689 975 164
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"RTM 430" 1 689 975 135
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"Interface settings" 1 689 978 427
4.2 No communication with the measure-
ment unit
Possible causes:
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Power supply (for checking refer to Section 5.1).
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USB connecting cable (for checking refer to Section
5.11).
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Measurement unit (replace the measurement unit if
none of the other possible causes is applicable).
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Computer unit (check by connecting a customer
service PC).
4.3

No speed signal

Possible causes:
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B+ /B- (for checking refer to Section 5.3).
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Term. 1/15 (for checking refer to Section 5.4).
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Clip-on trigger (for checking refer to Section 5.5).
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Measurement unit (replace the measurement unit if
none of the other possible causes is applicable).
4.4

No temperature display

Possible causes:
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Temperature sensor (for checking refer to Sec-
tion 5.2).
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Measurement unit (replace the measurement unit if
none of the other possible causes is applicable).
4.5

No battery voltage

Possible causes:
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B+ /B- (for checking refer to Section 5.3).
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In the event of malfunction, replace either the mea-
surement cables or the measurement unit.
Robert Bosch GmbH
Faults | BEA 810/840/850 | 13 BEA 810/840/850 | 13
4.6

No pressure display

Possible causes:
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Pressure sensor (for checking refer to Section 5.10).
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In the event of malfunction, replace the measure-
ment unit.
4.7

No current display

Possible causes:
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Input/multi measurement cable CH1 (for checking
refer to Section 5.6).
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Input/multi measurement cable CH2 (for checking
refer to Section 5.7).
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Current probe 30 A.
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Current probe 1000 A.
4.8

Timing light not functioning

Possible causes:
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Timing light (for checking refer to Section 5.9).
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Measurement unit (replace the measurement unit if
none of the other possible causes is applicable).
4.9

Remote control not possible

Possible causes:
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Remote control unit (check using reference remote
control unit).
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Remote control unit batteries (check using multime-
ter).
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Remote control receiver (check the firm attachment
of all cables, connect up the keypad directly and
check, replace the remote control receiver with a
reference unit if applicable).
4.10

Operation with mouse not possible

Possible causes:
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Mouse (check firm attachment of connector, check
with reference mouse).
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Computer unit (check using customer service PC).
4.11

No keypad operation

Possible causes:
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Remote control receiver (check the firm attachment
of all cables, connect up the keypad directly and
check, replace the remote control receiver with a
reference unit if applicable).
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Keypad (check using customer service PC).
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Computer unit (check using customer service PC).
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1 689 975 199 2009-09-25