2 Foreword This document will only explain the differences to the Comfort handset and Comfort base station (board of Micro base station is exactly the board of the Comfort base station (the only difference is the charging section)). The Gigaset 4010 Comfort is described in the G4010/15 Service Manual.
3 Service procedures Service procedures for Gigaset 4000 micro Note: The service procedures are confidential. Reset, Displaytest, Software-Version & IPUI, Speechpath test and Metering mode: press 1, 4 and 7 simultaneously and keep pressed switch on and keep pressed until display testpattern is visible, then release all keys press 76200 Speechpath test...
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Feature X 76200 Y Option Pause after signal-key 2 1 = 800 ms 2 = 1600 ms 3 = 3200 ms Automatic attenuation correction 3 0 = off (dependant on country) 1 = on Time for end of call identification 4 0 = 4 sec.
5.1.2 Disassembling of handset ESD regulations have to be followed! Use a new housing when destroyed! Open battery cover and remove battery before opening. Insert the case opener SL45 (pictures show G3000 opening tool instead) in the Lumberg connector hole and press to open the lower part of the case. Lift lower case shell by pulling the part close to the connector.
5.1.3 Repair of handset: Do not touch the contacs when handling the following parts!!! 5.1.3.1 Display cover/ Display ESD regulations have to be followed ! Needed material: pliers, small screw driver Insert a small screw driver between both plastic parts of the cover and turn it carefully (do not touch the LCD) in order to separate the parts.
5.1.3.2 Vibrator Insert a small screw driver between vibrator and case shell and turn it carefully. When inserting the vibrator make sure that you press only on the plastic part. 5.1.3.3 Battery contacts Insert a small screw driver between battery contacts and case and turn it carefully. When inserting the battery contacs make sure that you press only on the plastic part.
5.1.3.5 Separating the board from the case shell Press the stud that fixes the board with tweezers or pliers while lifting the board. 5.1.3.6 Microphone The Microphone can be removed by using tweezers with a narrow tip that fits in the small gap on the side of the microphone-frame on the case shell.
5.1.4 Assembling of handset Insert microphone, earphone and keypad. Fix the board and press it down in the area of the stud (red arrow) until it engages. Insert light conductor as shown in the picture below (white arrow). Insert battery connector, vibrator, loudspeaker and close the housing. Pay attention on the light conductor while closing.
5.1.6 Possible faults on handset 5.1.6.1 Mobile unit faulty due to humidity Note: Most humidity damages on the front side under the keypad. Look at all electronic components on the back side. Remaining flux on the component side could look similar to a humidity damage (white deposits) but it will disappear when heating it up with a hot air blower.
5.1.6.2 Display problems Fault code: D 4 Affected unit: Gigaset 4000 Micro handset Components: Display, display connector Needed equipment: soldering iron Working material: solder, flux Diagnosis: Missing lines or colums are a symptom for an electrically faulty display. When the display doesn’t show any sign there can be different reasons. First check if only the display is faulty by pressing some keys (confirmation tone).
5.1.6.3 SLR (microphone-path faulty) Fault code: D 19 Affected unit: Gigaset 4000 Micro handset Components: Microphone Needed equipment: tweezers Working material: none Diagnosis: The diaphragm of the microphone is affected by humidity or nicotine with increasing age or the microphone could be electrically faulty. There will be a higher attenuation when measuring SLR (sending loudness rating).
5.1.6.4 RLR (earphone-path faulty) Fault code: D 20 Affected unit: Gigaset 4000 Micro handset Components: Earphone Needed equipment: Multimeter Working material: none Diagnosis: The diaphragm of the earphone could be affected by deposits with increasing age. There will be a higher attenuation when measuring RLR (receiving loudness rating). In most cases the earphone is defective.
5.1.9 Disassembling ESD regulations have to be followed ! Needed material: - Case opener SL45: order no. F30032-P85-A1 (see handset) - Opening tool G2000 The base station is fixed by snap hooks. At first insert opening tool G2000 as described in the following picture and turn it. Use the case opener SL 45 to snap the remaining hooks open (pictures show G3000 opening tool instead).
5.1.10 Assembling ESD regulations have to be followed ! Needed material: none Insert board into back case shell (where the sockets are). It is inserted correctly when you see the 3 silver pads of the I2C bus under the 3 holes in the back of the case shell.
5.1.12 Base station faulty due to lightning stroke The pictures are taken from a Gigaset 2010 base station. Inspect the board with your eyes. The components on the photos have been damaged by lightning stroke.