Flow chart of trouble shooting
5-23
5-14 DCS Transmit
Tx On (level : 0)
U602
Pin 8
U602
Pin 3
U609
Pin 4
U608
Pin 8
U610
Pin 5
U610
Pin 9 = 0.5~2.5 V
Resolder
U600
Check
VC1 : H
VC2 : L
Change or Resolder
U602
Resolder
U609, C611
Resolder or Change
C626, R611, R613, R614
Resolder
U610
Resolder
U605, U612
U605
Pin 17, 18, 19, 20
Resolder
OneC(U501)
Check U605
Pin 35, Pin 38
Resolder
U605 (Pin35, 38)
Resolder
U501
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Check
Ant. S/W, Control Circuit
Check
U608 : +VBATT
Pin 2 (APC)
OK?
Resolder or Change
U608
Yes
Check +VBATT
or APC Control
No
Yes
At 1150~1185MHz,
Pin 10
At CH 1080MHz,
Pin 23
U612
Содержание SGH-N625
Страница 2: ...Samsung Electronics Co Ltd Printed in Korea 08 2002 Rev 1 0 GH68 03123A ELECTRONICS ...
Страница 9: ...PCB Diagrams 2 1 2 PCB Diagrams 2 1 Main Top ...
Страница 10: ...PCB Diagrams 2 2 2 2 Main Bottom ...
Страница 27: ...5 Flow chart of trouble shooting 5 1 Power ON 5 1 Flow chart of trouble shooting ...
Страница 30: ...Flow chart of trouble shooting 5 4 VCC VCC R509 C526 SIMPWDN_BOOT F_WP SYSRST GPIO3 DTR1 F ...
Страница 35: ...5 9 Flow chart of trouble shooting 5 5 Microphone Part ...
Страница 36: ...Flow chart of trouble shooting 5 10 C532 U501 R525 R527 C561 C560 MIC VX 1P C553 R530 VX 1N R531 C538 VCC ...
Страница 43: ...5 17 Flow chart of trouble shooting R215 1K 100K R217 1 3 2 Q201 MMBT2222AWT1 BACKLIGHT B_LIGHT ...
Страница 44: ...Flow chart of trouble shooting 5 18 5 10 Melody Part ...