38
10. TROUBLESHOOTING
1.
Power Supply PCB (P801)
1.1 The power cannot be turned on.
NG
OK
OK
NG
NG
Is the E+6V voltage line (J808) normal?
Is the control signal of J305 (10pin)
normal? STB_CTRL=H
Is the each voltage line normal?
+12V, +8V, +5V_D2, D+4V, -27V,
DC+3.5V and HEATER
•
Check the fuse (F801) has not blown
out.
•
Check the voltage inputted/outputted to
each pin of Q801, Q802 and Q803.
Note: When checking the primary circuit,
the GND of a measuring instrument
should be switched floating.
Refer to “3.1 Check the panel
microprocessor”.
Check the voltage inputted/outputted to
each pin of the connected components.
Содержание DV9500
Страница 16: ...14 Choose the language And click Next 言語を選んで Next をクリックします Click Yes Yes をクリックします ...
Страница 19: ...17 Click Next Next をクリックします Click Next Next をクリックします ...
Страница 104: ...102 PT01 A QW82 QW83 QW01 QW81 QT01 QT51 PT01 B QT05 QT02 QT03 QW03 QT06 QW02 ...
Страница 109: ...107 PM01 Q501 CXD1881AR ...
Страница 110: ...108 ...
Страница 114: ...112 PM01 Q404 EPM3128ATC100 10 ...
Страница 122: ...120 PM01 Q304 CS8420 ...
Страница 123: ...121 PM01 Q301 CS494003 ...
Страница 124: ...122 PM01 Q950 CS4392 ...
Страница 125: ...123 PA01 QD01 CS4398 ...
Страница 128: ...126 PT01 QT01 SiI9190 ...
Страница 129: ...127 p pp PF01 QF71 LC75712E ...
Страница 130: ...128 16 EXPLODED VIEW AND PARTS LIST ...