44
3.3 Check the F/E microprocessor.
NG
OK
OK
NG
OK
OK
OK
OK
Finish
OK
OK
NG
NG
NG
Are the +3.3V_D2, +1.8V_D2, +3.3V_A2
and +1.8V_A2, of Q502 voltage lines
normal?
Is the clock waveform of 33pin on Q502
normal? (33.87MHz. 2Vp-p)
Is the 51pin of Q502 H?
•
Check the soldering of Q114, Q115, and
the input/output voltage.
•
Check the soldering of L404, L407 and
circumference components.
Check the soldering of
the Q502 and circumference
components.
Replace Q114 or Q115.
Refer to “1. POWER SUPPLY PCB”.
Check the waveform of 15pin on Q105.
(33.87MHz 2Vp-p)
Check the waveform of 2pin
on Q111. (33.87MHz)
Check the waveform of 2pin
on Q405. (33.87MHz)
Check the soldering of R491
and R574.
Check the soldering of X101,
circumference components and Q105.
Check the soldering of Q102 (108pin),
R129, R570, R648 and C638.
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 ...