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2008-03-14
LC-19SH7E/RU, LC-26SH7E/RU, LC-32SH7E/RU, LC-42SH7E/RU
45
CHAPTER 4.
TROUBLESHOOTING TABLE
[1] 19” TROUBLESHOOTING TABLE
Power unit operation check.
↓
LINE_FILTER_UNIT:
↓
YES
POWER_UNIT
↓
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 normal?
NO
LINE_FILTER_UNIT:
Isn't C908, RV901, L902, C900, C901, etc. out of order?
Moreover, whether the short-circuit with the circumference circuit
is checked.
Is BD901 (+320V) output?
* When power on/off switch is on
‧‧‧
About +400V
Does the circuit operate normally?
Check circuit around (FB901, Q906, ZD904, IC901 etc ).
NO
Is a voltage of +5.3V applied to pin (3,4) of connector (CN902)?
Does the switching circuit operate normally?
Check circuit around the primary side (T901, ZD906, D901,
D903, Q903, D904, IC901, IC902, D905 etc.), the secondary
side (D905, L904, etc.), the DC_DET circuit (IC902, ZD903,
IC901, ZD902, etc.), and the protection circuit.
NO
Is a voltage of +18V applied to pin (8,9) of connector (CN902)?
NO
Does the inverter circuit operate normally?
Check circuit around (Q801, ZD801, ZD802, Q805, Q806, IC801,
T801, L801, L802, etc.), and the protection circuit.
Содержание LC-19SH7E/RU
Страница 6: ...LC 19SH7E RU LC 26SH7E RU LC 32SH7E RU LC 42SH7E RU 6 TV Front view TV Rear view ...
Страница 10: ...LC 19SH7E RU LC 26SH7E RU LC 32SH7E RU LC 42SH7E RU 10 3 DIMENSIONS ...
Страница 15: ...2008 03 14 LC 19SH7E RU LC 26SH7E RU LC 32SH7E RU LC 42SH7E RU 15 Fig 15 ...
Страница 108: ...LC 19SH7E RU LC 26SH7E RU LC 32SH7E RU LC 42SH7E RU 108 2 2 2 Pin Connections and short description ...
Страница 115: ...2008 03 14 LC 19SH7E RU LC 26SH7E RU LC 32SH7E RU LC 42SH7E RU 115 2 7 2 Pin Connections and short description ...
Страница 116: ...LC 19SH7E RU LC 26SH7E RU LC 32SH7E RU LC 42SH7E RU 116 2 8 U391 NAND128W3A2BN6E 2 8 1 Block Diagram ...
Страница 117: ...2008 03 14 LC 19SH7E RU LC 26SH7E RU LC 32SH7E RU LC 42SH7E RU 117 2 8 2 Pin Connections and short description ...
Страница 118: ...LC 19SH7E RU LC 26SH7E RU LC 32SH7E RU LC 42SH7E RU 118 CHAPTER 6 BLOCK DIAGRAM WIRING DIAGRAM 1 19 BLOCK DIAGRAM ...
Страница 119: ...2008 03 14 LC 19SH7E RU LC 26SH7E RU LC 32SH7E RU LC 42SH7E RU 119 26 32 42 BLOCK DIAGRAM ...
Страница 120: ...LC 19SH7E RU LC 26SH7E RU LC 32SH7E RU LC 42SH7E RU 120 2 19 POWER MANAGEMENT BLOCK DIAGRAM ...
Страница 121: ...2008 03 14 LC 19SH7E RU LC 26SH7E RU LC 32SH7E RU LC 42SH7E RU 121 26 32 42 POWER MANAGEMENT BLOCK DIAGRAM ...
Страница 250: ...LC 19SH7E RU LC 26SH7E RU LC 32SH7E RU LC 42SH7E RU 250 2 CABINET PARTS LC 19SH7E ...
Страница 252: ...LC 19SH7E RU LC 26SH7E RU LC 32SH7E RU LC 42SH7E RU 252 CABINET PARTS LC 26SH7E ...
Страница 254: ...LC 19SH7E RU LC 26SH7E RU LC 32SH7E RU LC 42SH7E RU 254 CABINET PARTS LC 32SH7E ...
Страница 256: ...LC 19SH7E RU LC 26SH7E RU LC 32SH7E RU LC 42SH7E RU 256 CABINET PARTS LC 42SH7E ...
Страница 258: ...LC 19SH7E RU LC 26SH7E RU LC 32SH7E RU LC 42SH7E RU 258 3 SUPPLIED ACCESSOORIES ...
Страница 259: ...2008 03 14 LC 19SH7E RU LC 26SH7E RU LC 32SH7E RU LC 42SH7E RU 259 4 19 PACKING PARTS ...
Страница 261: ...2008 03 14 LC 19SH7E RU LC 26SH7E RU LC 32SH7E RU LC 42SH7E RU 261 26 PACKING PARTS ...
Страница 263: ...2008 03 14 LC 19SH7E RU LC 26SH7E RU LC 32SH7E RU LC 42SH7E RU 263 32 PACKING PARTS ...
Страница 265: ...2008 03 14 LC 19SH7E RU LC 26SH7E RU LC 32SH7E RU LC 42SH7E RU 265 42 PACKING PARTS ...