Xenon Flash Construction; List Of Risks - Nokia RM-313 Service Manual

RM-313
Camera Module Troubleshooting

Xenon flash construction

For RM-313, Tabasco 1 module (4860024) is used. The feedback sensor is not used, only 1 capacitor.
The Xenon flash module as a component is not a repairable part i.e. components / parts in the module cannot
be changed. Cleaning dust from the lens is the only allowable operation, do this by using clean compressed
air.
The main parts of the module are:
• Molded lamp unit
• Fresnell lens area
• Xenon tube
• Auto focus LED
• Board-to-board connector to connect module to main pwb of device
• Signal flex
• Capacitor bank (with different amount / size capacitors)
• Ink marked serial number
Tabasco Xenon flash fixed to the phone mechanics e.g. with special clips and double side tape. The contacts
to the main PWB are formed by using B-to-B connectors (Hirose DF23C-10DP-0.5V - Nokia code 5409207).

List of risks

The Xenon module includes electrolytic capacitor(s) charged to voltage of 320V. Energy stored in the capacitor
(s) is 1.0...1.5J immediately after charging. If exposed to an electric shock it will most likely feel very nasty
on fingers. Possible risks causing an electric shock in a xenon module are:
• Broken flex between capacitors and lamp unit. The damage may be not visual.
• Broken molding on the lamp unit or capacitors.
• Cover window broken and xenon lamp exposed to the user.
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