42
3.2 Check the B/E microprocessor
OK
OK
OK
NG
NG
OK
OK
NG
NG
NG
OK
OK
NG
OK
NG
OK
NG
Are the +3.3V_D1 and +2.5V_D2 of Q102
voltage lines normal?
Is the clock waveform of 18pin on Q102
normal? (27MHz. 2Vp-p)
Is the 15pin of Q102 H?
Are the +3.3V_D1 and +1.8V_D1 of Q101
voltage lines normal?
Is the clock waveform of 18pin on Q106
normal? (27MHz. 2Vp-p)
Refer to B/E 2.
Check the soldering of Q117 and Q116,
and the input/output voltage.
Input voltage is OK: Check
the soldering of circumference
components of Q102.
Soldering is OK: Replace
Q117 or Q116.
Refer to “1. POWER SUPPLY PCB”.
Check the waveform of 4pin on Q105.
(27MHz 2Vp-p)
Check the soldering of R168
and R153.
Check the soldering of X101, circumference
components and Q105.
Check the soldering of QU01 (28pin),
R156 and C161.
Check the soldering of Q118, and
the input/output voltage.
Input voltage is OK: Check the soldering
of Q101.
Soldering is OK: Replace Q118.
Check the waveform of 3pin on Q105.
(27MHz 2Vp-p)
Check the soldering of R170
and R101.
Check the soldering of X101,
circumference components and Q105.
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 ...