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5-13 DCS Receiver
RF input : CH center freq. + 67.7 kHz
5-13
Rx On
Amp. : -50 dBm
U208
No
Check IF connector
Pin 2
- > resolder
-65 dBm
Yes
U208
No
Pin 16
-65 dBm
Yes
F203
No
Resolder
Pin 3
F203
-70 dBm
Yes
F202
Q201, C235, C233,
Pin 2
C214, C244, L210
-60 dBm
Yes
U201
Resolder
No
Pin 47, 48
F202, C224,
-60 dBm
C225, L208
Yes
U201
No
Pin 42, 43
(225 MHz)
-50 dBm
Yes
U201
No
Pin 24, 25
F200, C213, C214,
(45 MHz)
-55 dBm
Yes
U201
No
Pin 21, 22, 23, 24
OneC(U414), U201
40 mV
Yes
Check U201
No
Resolder
Pin 44, 45
2.5 V
U201 (Pin35, Pin44, 45)
Pin 35
2.5 V
Yes
Resolder
U414
Resolder &
No
U208 Pin 16
-65 dBm
Yes
Resolder
Check
C229(CH-225MHz)
-20 dBm
C138(540MHz)
-20 dBm
Yes
Resolder
C215, L201
Resolder
Check
VC1 : L
VC2 : L
VC3 : H
No
Resolder
U107, U104
Flow chart of trouble shooting
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