42
END
8U-210103-3(DIR,USB_DAC UNIT)
Check the Power Supply-1
8U-210103-3
・
Check the voltage of N631 2pin : 3.3V
Check the cable and the connection of connector.
Check soldering.
・
N601
Check signal of U634 (DIR)
8U-210103-3
・
U634
41pin : Is DIR_RES ”H”?
・
Check starting oscilltor
U634 28pin :
24.576MHz
・
Check signal of U634
40pin
:
CLOCK
39pin : CHIP ENABLE
38pin : DATA IN
37pin : DATA OUT
t
DIR_CL
y
DIR_CE
u
DIR_DI
i
DIR_DO
Check DIR output signal-1
8U-210103-3
・
U634 16pin MCK output
・
U634 17pin SCLK output
・
U634 20pin LRCK output
・
U634 21pin DATA output
Q2
DIR_MCLK
Q1
DIR_SCLK
o
DIR_DATA
Q0
DIR_LRCK
Check signal of U632(REAR USB DAC)
8U-210103-3
・
Check starting oscilltor
U632 38pin :
12MHz
・
U632
16pin : Is RESET ”H”?
・
Check D+,D- signal of U632
34,35pin
・
Check SPDIF output of U632
27pin
Q3
D+
Q4
D-
Check soldering.
・
U634,R664,R666,R669,R670,R671
Check soldering.
・
U634,R667,R665,R662,R661
Check soldering.
・
U632,K632,R690,R691,R668,R643
N.G.
N.G.
N.G.
O.K.
O.K.
O.K.
N.G.
O.K.
Содержание SA-KI-PEARL-LITE/N1B
Страница 35: ...10 Click the E P R 11 Click the OK 35...
Страница 46: ...46 Personal notes...
Страница 74: ...74 TE7022L MAIN U632 TE7022L Pin Descriptions...
Страница 75: ...75 TE7022L Pin Descriptions...
Страница 80: ...80 2 FL DISPLAY FLD 13 BT 237INK FRONT Z0701 PIN CONNECTION GRID ASSIGNMENT q R7...
Страница 81: ...81 ANODE CONNECTION...