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MPS1000 Subwoofer
AMP no signal out
Dc voltage check ±VH
yes
Check+/-15VDC
yes
Led light Blue
led light Blue
Check M100 signal
yes
yes
Check U203 Pin1 signal
yes
Check R278,R293 signal
yes
Check R234.R228 signal
yes
Check W200 PIN7.PIN8 signal
yes
Check M200 P4. PIN5
signal
yes
The Amp Ass'Y OK, END
MPS1000 Troubleshooting Flow Chart
no
Check Q508.Q509.Q510.Q511.
yes
D511.D514 etc.
yes
no
Check Q531,Q532.Z501.Z502 etc
yes
no
Check,Q515,Q516,Q517 etc
yes
no
Check RL50.
Class-D pin2
i
l
no
Check U203.Q200.Q201,
etc
yes
no
Check ,+VH& -VH DC
Voltage
no
Check D201.D202.R280.R278
R293,etc
no
yes
Check U1.P1.ect
no
yes
Check Class-D pin6 signal.
Q417.etc
yes
no
yes
no
Check R563.R564.R273.
R274.R275.R257. etc
yes
Check U201.U200.U204.VR201.VR202.
VR203.SW2.etc
9
no
Check CLASS-D 300W
yes
module.transformer(T500)
yes
Check U500,Q505.Q506.
Q513.Q514 etc
yes
Check Fuse,D500.Rem pin
.Q500.Q501 etc
no
no
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Troubleshooting
