LG SNC4R - Crystal; Flash Memory; Waveforms of Major Check Point

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Only for training and service purposes.
WAVEFORMS OF MAJOR CHECK POINT
1. CRYSTAL 2. FLASH MEMORY
FIG 1. X500 (27 MHz)
1
4
3
5
2
C550
100nF
DGND
DGND
SF_CS
R559
0
OHM(1)
NC
R552
0
OHM(1)
IC504
1
CS#
2
SO
3
WP#
4
VSS
5
SI
6
SCLK
7
HOLD#
8
VCC
R536
10K
R539
10K
R537
10K
R538
10K
FB504
PZ1608U221-1R4TF
3.3VA
For DSP(2MB)
1
R51
8
510K
X500
27MHz
1
IN/OUT
2
FLOAT
3
IN/OUT
4
FLOAT
DGND
C518
10pF
C517
10pF
R556 0
R557 100
FIG 2. VCC, CS#, CLK, DO
2
3
4
5
VCC
CS#
CLK
DO