Sanyo PLC-XF46N - Troubleshooting; No Picture and No Power Issues

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Check the CG_MOTHER Board.
Check the Vcc voltages.
S9V / S6V (Always)
9V / 5VB / -5V (Switched)
Check the signal lines.
IC9031
BUFFER
<74VCX16821>
IC9041
BUFFER
<74VCX2374>
IC9032
BUFFER
<74VCX16821>
IC9033
BUFFER
<74VCX16821>
IC9001
SYNC SW
<4052>
IC9005
BUFFER
IC9017
IC9016
IC9006
RGB SW
<AD8185>
IC9021
I/O EXPANDER
<M62320>
M-IDB1/2/3/4
M-IDA1/2/3/4
SLOT TYPE
DETECTOR
IC9014
DIFCLK
SELECTOR
<QS3125>
DIF CLK1/2/3/4
IC9013
SLOT ON SW
<4052>
SLOT2 R/G/B
SLOT1 R/G/B
IC9007
RGB SW
<AD8185>
SLOT4 R/G/B
SLOT3 R/G/B
IC9002
AUDIO SW
<4052>
SLOT4 AUDIO_L/R
SLOT3 AUDIO_L/R
SLOT2 AUDIO_L/R
SLOT1 AUDIO_L/R
SLOT_SEL1/SEL2
SLOT_SEL1/SEL2
B
R
G
SLOT TYPE
DETECTOR
SLOT ID
IIC_SCL/SDA
HS / VSSLOT1/2/3/4 H/V
C_SYNC
CS1/2/3/4
SLOT1/2/3/4 ON
H/V_SYNC
SLOT_SEL1/SEL2
BB
GB
RB
BA
GA
RA
DIF CLK
DIF DE
DIF SCDT/H/V
DIF DE
DIF SCDT/H/V
IC9022
I/O EXPANDER
<M62320>
SLOT1/2/3/4_ID
M-IDC1/2/3/4
AUDIO_L/R
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
K90Q
● No Picture
■ Troubleshooting