Samsung SGH-A737 Service Manual page 50

Umts telephone

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Table of Contents

Flow Chart of Troubleshooting

9-1-8. Headset Part

Headset function does not work

Check R610 is LOW ?

Mic is not operational?

Earphone is not operational?

YES

END

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Check the headset device,

or R610 crack

1. Check the mic path from earjack

to MIC2P & MIC2N

2. Check the bias circuit

Check the ear path from earjack

to EAR_R & EAR_L

9-16

Table of Contents