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Samsung SM-B105E Service Manual page 36

Wireless device
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Level 3 Repair
8-3- 14 . DCS Transmitter
TX ON ( 0 Level)
Yes
PAM100 Pin 19 ≥
30dBm
Yes
PAM100 pin 4 ≥ -4
dBm
Yes
UCP100 pinG1
≥ -4dBm
Yes
Check & Resolder
C102,C100,C104,
,L100, ZD100
C101, C103
And PMU Part and UCP100
Yes
END
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
Resolder L1 20
Check PAM100
No
pin 29 = H
Pin 31 = H
No
Check PAM100
VBATT(pin 7 , 26 )
OK?
No
Resolder or Change
C1 75
VDDCORE_1V1
VBAT
CLOSE TO THE INPUT PIN
(D2, D3, R4, R5)
8-28
No
Yes
Change or Resolder PAM100
Yes
No
Check VBAT or PAM
VDDCORE_1V1
CLOSE TO THE DCDC OUTPUT
(V8, W8, U8)
Check ANT Switch
control circuit
Check UCP100
control signal
VBAT
ZD100
CLOSE TO THE INPUT PIN
(V6, W6, V7, W7)

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