MVH-X580BS/XNUC
9
5
6
7
8
5
6
7
8
C
D
F
A
B
E
5. DIAGNOSIS
5.1 OPERATIONAL FLOWCHART
VDDIO_On : Pin E13
Signal on System ucom(IC501)
bsens
: Pin A18 or IC201 Pin40
asens
: Pin A15
dsens
: Pin A17
VDDEN : Pin B15
VDDIO3.3V : Pin E6,E7,E8,F7,F8,M6-M14
VDD1.2V : Pin E9,E10,F6,F9,G5,N5,N6,N10-N13
SWVDD : IC201 Pin1
SYS+B5.7V : IC201 Pin16
VDDIO_On = 3.3V
bsens
asens
dsens
VDD1.2V = 1.2V
VDDIO3.3V = 3.3V
bsens
= L
asens
= L
Starts
communication
SOC
dsens
= L
SWVDD = 5.2V
Source ON
SYS+B5.7V = 5.7V
Completes power-on operation.
(After that, proceed to each source operation)
Power ON
VDDEN
H
VDDEN = H
Starts
communication
LCD driver