Samsung GT-I9500 Service Manual page 49
Gsm telephone
Hide thumbs
Also See for GT-I9500:
- User manual (147 pages) ,
- Service manual (108 pages) ,
- Quick start manual (35 pages)
Advertisement
Level 3 Repair
8-3-9. GSM1800 RX
NORMAL CONDITION
catch the channel?
Check C136 ≤ -65dBm ?
Check F100 PIN6
≤ -65dBm ?
Check the voltage at
C166= V_Battery ?
Check component
soldering status OK at
Check F101 PIN 25, 26
≤ -65dBm ?
Check the voltage at
{L105= V_Battery ?}
& {C120, C127 = 2.5V ?}
& {C114, C111, C128 = 2.32V }
& {C119 = 1.8V?}
& {C118, C117, C115, C110,
C106 = 1.5V?}
& {C122, C108 = 1.2V?}
Check the freq. at
OSC100 PIN 4 : 26MHz ?
GSM1800 Receiver is O.K?
Confidential and proprietary-the contents in this service guide subject to change without prior notice.
Distribution, transmission, or infringement of any content or data from this document without Samsung's written authorization is strictly prohibited.
NO
NO
YES
NO
F101
YES
YES
YES
YES
END
YES
CHECK soldered
RFS100, L111, C136
NO
Resolder or change
F100
NO
CHECK soldered
L119, C166
NO
Resolder or change
F101
NO
Resolder or change
F101
NO
Resolder or change
U103
NO
Change or resolder
OSC100
NO
Resolder or change
U300
8-17
CONTINUOUS RX ON
RF INPUT : 698CH
AMP : -50dBm
Advertisement
