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2008-03-14
LC-19LE320, LC-22LE320, LC-26LE320, LC-32LE320, LC-37LE320, LC-42LE320
77
26” 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 C914, RV901, RV902, L903, L905, C937, C900, C920, etc.
out of order? Moreover, whether the short-circuit with the
circumference circuit is checked.
Is BD901 (+320V) output?
Does the circuit operate normally?
Check circuit around (BD901, Q905, ZD906, IC901, D902 etc ).
NO
Is a voltage of +5.3V applied to pin (12,13) of connector (CN905)?
Does the switching circuit operate normally?
Check circuit around the primary side (T901, ZD906, D902,
D905, Q905, D904, IC901, Q901, ZD904 etc.), the secondary
side (D903, L902, C911 etc.), the DC_DET circuit (IC902,
ZD903, IC903, IC901, etc.), and the protection circuit.
NO
Is a voltage of +24V applied to pin (1,2,3,4,5) of connector
(CN903)?
NO
Does the inverter circuit operate normally?
Check circuit around (D901, L901, C908, Q903, ZD902 etc.), and
the protection circuit.
Is a voltage of +24V applied to pin (9,10) of connector (CN905)?
NO
Does the inverter circuit operate normally?
Check circuit around (D983, C956, FB985, etc.), and the
protection circuit.
Is a voltage of +12V applied to pin (4,5) of connector (CN905)?
NO
Does the inverter circuit operate normally?
Check circuit around (D985, IC905, D907, L904, C927 etc.), and
the protection circuit.
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 ...