Sanyo PLC-XF47 - Troubleshooting; No Picture

- 57 -
Check the CG_MOTHER Board.
Check the Vcc voltages.
S9.6V / S6V (Always)
3.3V / 5V / -5V (Switched)
Check the signal lines.
IC9001
BUFFER
IC9004
BUFFER
IC9002
BUFFER
IC9003
BUFFER
IC9011
RGB SW
<AD8185>
M-IDB1/2/3/4
M-IDA1/2/3/4
A_R2/G2/B2
A_R1/G1/B1
IC9012
RGB SW
<AD8185>
IC9131
A_R4/G4/B4
A_R3/G3/B3
SLOT_SEL1/SEL2
B
R
BB BB
GB
GB
RB
RB
BA
BA
GA
GA
RA
RA
DIFCLK
DIFCLK
DIFCLK_LA
DIF DE
DIF SCDT/H/V
DIF_DE
DIF_SCDT/H/V
SLOT1/2/3/4
M-IDC1/2/3/4
K90FK90EK90DK90C
B
G
R
B
G
R
TO MAIN BOARD "K32A" TO MAIN BOARD "K32B" "K2R"
K90K
K90L
K90M
"K2G" "K2B"
TO MAIN BOARD "K8A"
K90A K90B
SLOT1
SLOT2
SLOT4
SLOT3
TO MAIN BOARD
G
IC9137
IC9088
IC9134
IC9135
IC9136
K90QK90R
IIC_SCL/SDA
<XC3S50>
SCLK_I/O, SDATA_I/O
H_SYNC
V_SYNC
C_SYNC
IC9132
CS1/2/3/4_IN
A_HS1/2/3/4_IN
A_VS1/2/3/4_IN
IC9086
IC9133
● No Picture
■ Troubleshooting