Pcs Receiver - Samsung SGH-E715 Service Manual
Gsm telephone
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Also See for SGH-E715:
- User manual (164 pages) ,
- Manual de usuario (198 pages) ,
- Manual (89 pages)
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SGH-E715 Flow Chart of Troubleshooting and Circuit Diagrams
10. PCS Receiver
Continuous RX ON
RF Input : 660 CH
AMP : -50dBm
NORMAL CONDITION
Catch the channel ?
YES
F400 Check
Pin #6 ≥ -65dBm ?
YES
F400 Check
Pin #3 ≥ -65dBm ?
YES
F401 Check
Pin #1 ≥ -65dBm ?
YES
U401 Check
Pin#16,17 ≥ -65dBm ?
YES
U401 Check
Pin#9,32=Clean 2.8V?
YES
U401 Check
Pin#28,1,2,3=100mV?
YES
Check U300
NO
NO
NO
NO
NO
NO
NO
U401 Check
Pin #8 : 13MHz ?
Vpp : 860mV?
YES
U401
Change or resolder
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Check soldered status of
C400,402
CN400
Resolder or Change
F400 Resolder or Change
Check soldered status of
L408,C429
Check soldered status of
C405,406,L402,F401
U100,C106,C112
Check or resolder
NO
OSC400 Check
Pin #8 : 13MHz ?
Vpp : 950mV?
YES
R412,C426
resolder
2-12
NO
OSC400 Check
Pin #4 = 2.8V ?
YES
OSC400
Change or resolder
NO
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