43
END
8U-210103-1(USB_iPod)
Check signal of U501 (FRONT USB/iPod)
8U-210103-1
・
U501
19pin : Is USB_RES ”H”?
・
Check starting oscilltor.
U501 50pin :
16.9344MHz
・
Check starting oscilltor.
U501 1pin
:
48MHz
・
Check signal of U501.
19pin
:
RTS
34pin
:
CTS
37pin
:
SO
38pin
:
SI
・
Check SPDIF output of U501
70pin
・
Check D+,D- signal of U501
4,5pin
Q5
USB_RST
Q6
USB_CTS
Q7
USB_SO
Q8
USB_SI
W6
D+
W7
D-
Check soldering.
・
U501
・
R510,L101,L102,L103,L104,L105,L106,L107,L
108,R103,R104,R503
N.G.
O.K.
Check power supply
8U-210103-1
・
Check voltage of U501
(6)(13)(48)(53)(62)(96)(116)(128)(143)pin : 3.3V
Check the cable and the connection of connector.
Check soldering.
・
U811 (8U-210103-1)
・
N104 (8U-210103-1)
・
U701 (8U-110090-1)
・
N701 (8U-110090-1)
N.G.
O.K.
Содержание SA-KI-PEARL-LITE/N1B
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Страница 81: ...81 ANODE CONNECTION...