FUNAI F42PDME, Руководство по обслуживанию

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2-3-7
PDMTR2
R31 -75V (-Vy)
R30 +115V (Vscw)
Mis-discharge
*Mis-discharge
FLOW CHART NO.8
Confirms whether the connector is connected properly.
Yes
No
Yes
Replace the LVDS CTRL B/D unit.
Are the Y SUS B/D unit and Z SUS B/D unit signal
cables normal?
No
Yes
Check that the specific voltage is input to the following
point.
Check Y SUS B/D unit, Z SUS B/D unit IPM fail.
No
Replace the Y SUS B/D unit.
Replace the Y SUS B/D unit or Z SUS B/D unit.
Yes
Replace Y DRV UPPER B/D unit or Y DRV LOWER
B/D unit. No
Y DRV
UPPER
B/D unit
Normal diode value.
(In case of Panasonic
IC=1.035) Defective diode value=0.018
*It is different from each IC Maker.
(In case of TI IC=0.6~0.7)
P11
GND
Sus-out
Vs
ER-DN
ER-COM
ER-UP
Check diode value of P11 on Y DRV UPPER B/D unit
and P9 on Y DRV LOWER B/D unit.
Forward : test 1 GND(+) , Sus-out(-)
test 2 Sus-out(+),Vs(-)
test 3 ER-DN(-),ER-COM(+)
test 4 ER-COM(-),ER-UP(+)
when each 4 TEST Diode value is over 0.4V
Reverse : test 1 GND(-) , Sus-out(+)
test 2 Sus-out(-),Vs(+)
test 3 ER-DN(+),ER-COM(-)
test 4 ER-COM(+),ER-UP(-)
when each 4 TEST Diode value is infinity
Y SUS B/D unit.
Refer to FLOW CHART NO.3 (No display (Y SUS B/D unit)).