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2008-03-14
LC-19LE320, LC-22LE320, LC-26LE320, LC-32LE320, LC-37LE320, LC-42LE320
115
42” TROUBLESHOOTING TABLE
Power unit operation check.
↓
LINE_FILTER_UNIT:
↓
YES
POWER_UNIT
↓
YES
↓
YES
↓
YES
↓
YES
↓
YES
Are the power cord and harness in the unit properly connected?
NO
Connect the power cord and harness properly, and turn on the
power.
Is F901/F902 normal?
NO
LINE_FILTER_UNIT:
Isn't RV901,C901,L901,C904,C902,C903,L902,RV903, etc. out
of order? Moreover, whether the short-circuit with the
circumference circuit is checked.
POWER_UNIT:
BD901, FB905, C910, etc. out of order?
Moreover, whether the short-circuit with the circumference circuit
is checked.
Is BD901 (+320V) output? (Set the main power SW to OFF.)
Does the PFC circuit operate normally?
(L906, Q901, D902, D903, IC901 and etc. And, the circuit around
the protection circuit etc. is checked.)
NO
Is a voltage of +5V applied to pin (12,13) of connector (CN902)?
(Set the main power SW to OFF.)
Does the switching circuit operate normally?
Check circuit around the primary side (T901, IC931, Q931,
ZD931, ZD930, ZD980, ZD981, etc.), the secondary side (D935,
L980, etc.), the AC_DET circuit (IC932, IC982, etc.), and the
protection circuit.
NO
Are +24V output as for the power on/off switch when it is on?
NO
Does the inverter circuit operate normally?
Check circuit around the primary side (T902,Q951,Q952,IC951,
D951,D952, etc.), the secondary side (D955, C943, etc.), and the
protection circuit.
Similarly, is +12V output as for the power on/off switch when it is
on?
NO
Check +12V circuit of D962, L931, etc.
Are +88V output as for the power on/off switch when it is on?
NO
Does the inverter circuit operate normally?
Check circuit around the second side (L907, Q991, D985, IC902,
Q903 etc.)
Содержание LC-19LE320
Страница 136: ...LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 136 Notebook Subnotebook and Palmtop Computers ...
Страница 142: ...LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 142 ...
Страница 145: ...2008 03 14 LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 145 Pin configuration ...
Страница 147: ...2008 03 14 LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 147 Pin configuration ...
Страница 159: ...2008 03 14 LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 159 MAIN UNIT Side B ...
Страница 161: ...2008 03 14 LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 161 MAIN UNIT Side B ...
Страница 163: ...2008 03 14 LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 163 POWER UNIT Side B ...
Страница 165: ...2008 03 14 LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 165 POWER UNIT Side B ...
Страница 167: ...2008 03 14 LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 167 POWER UNIT Side B ...
Страница 169: ...2008 03 14 LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 169 POWER UNIT Side B ...
Страница 172: ...LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 172 5 MEMC UNIT PRINTED WIRING BOARD MEMC UNIT Side A ...
Страница 173: ...2008 03 14 LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 173 MEMC UNIT Side B ...
Страница 311: ...2008 03 14 LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 311 2 CABINET PARTS LC 19LE320 ...
Страница 313: ...2008 03 14 LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 313 CABINET PARTS LC 22LE320 ...
Страница 319: ...2008 03 14 LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 319 CABINET PARTS LC 37LE320 ...
Страница 323: ...2008 03 14 LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 323 3 SUPPLIED ACCESSOORIES ...
Страница 324: ...LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 324 4 19 PACKING PARTS ...
Страница 326: ...LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 326 4 22 PACKING PARTS ...
Страница 328: ...LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 328 26 PACKING PARTS ...
Страница 330: ...LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 330 32 PACKING PARTS ...
Страница 332: ...LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 332 37 PACKING PARTS ...
Страница 334: ...LC 19LE320 LC 22LE320 LC 26LE320 LC 32LE320 LC 37LE320 LC 42LE320 334 42 PACKING PARTS ...
Страница 337: ... ...
Страница 338: ... 01 2 2 2 3 3 2 4 156 78 4 4 156 78 4 4 4 2 2 9 2 2 2 2 2 2 9 2 2 2 2 53 2 2 2 2 2 2 2 2 2 2 ...
Страница 339: ... 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 ...
Страница 340: ... ...
Страница 341: ... 01 2 2 2 3 3 2 4 156 78 4 4 156 78 4 4 4 2 2 2 9 2 2 2 2 2 2 ...
Страница 342: ... 9 2 9 2 2 2 2 2 2 53 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 ...
Страница 343: ... 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 ...
Страница 344: ... 0 ...
Страница 345: ... 0 0 123 4 0 4 0 4 0 5 6781 9 5 5 67 1 9 0 272 2 5 5 0 5 ...
Страница 346: ... A ...
Страница 347: ... 0 12 3 1 4 ...
Страница 348: ... 5 6 78 9 ...
Страница 349: ... 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 6 0 ...
Страница 350: ... ...
Страница 351: ... ...
Страница 352: ... ...
Страница 353: ... A A A ...
Страница 354: ... 0 0 1 2 3 ...
Страница 355: ... 4 0 5 6 6 78 9 6 ...
Страница 356: ... 6 6 6 6 6 6 6 6 6 5 5 5 5 5 5 5 5 5 ...
Страница 357: ... 6 6 6 6 6 6 6 6 6 6 6 6 ...
Страница 358: ... 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 ...
Страница 359: ... 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 ...
Страница 360: ... 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 A A A ...
Страница 361: ... 0 1 2 ...
Страница 362: ... 3 4 5 6 6 78 9 6 ...
Страница 363: ... 6 6 6 6 6 6 6 6 6 5 A B 5 B 5 A B 5 A B 5 A B 5 B 5 A B 5 A B 5 B ...
Страница 364: ... 6 6 6 6 6 6 6 6 6 6 6 CC5A 6 ...
Страница 365: ... 6 6 6 6 6 6 6 6 6 6 D 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 ...
Страница 366: ... 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 ...
Страница 367: ... 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 E E E ...