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4T-B70CJ1 TROUBLE SHOOTING 4 - 32
Power unit operation check for 4T-B70CJ1U
YES
Power cord and harness in the unit
connected
Line filter unit? L4 ,L6,L6 ,L7 or RT1,RT2
is out of order?
YES
Are the power cord and harness in the
unit
NO
YES
YES
YES
If F1 normal
?
Does DB1 output 155V when AC
input 110V?
NO
Change a new full-wave rectifier diode to
check the output voltage.
Is the voltage of +13V applied to pin
11,14,15 of CN201?
Does the standby circuit normal?. (Q1, T1,
D201 , D4 , &the circuit around the U1 and
protection circuit ect. is checked)
YES
Does the U101 , Q101 ,T101,D103and the
circuit around IC U101? Check them.
NO
NO
NO
NO
Is VLED output 35V&39Vas for power
on/off switch when is on?
Does the U301,T301,Q301,Q302,
D306,D304and the circuit around IC U301?
Check them.
Is PFC output 320V as for power on/off
switch when is on?
Содержание Aquous 4T-B70CJ1U
Страница 1: ...SHARP SERVICE MANUAL 4K ULTRA HD TV MODEL 4T B70CJ1U ...
Страница 8: ...6 2 Remove the 4 VESAscrews M6X12 3 Remove the 19 screws M3X8 at the rear cover area ...
Страница 11: ...9 Speakers 1 Disconnect the cable of speaker 2 Slide out the stud 3 Repeat operation in the 2nd speaker ...
Страница 13: ...11 3 Remove 5 screws M3X6 in the main area Redcircle ...
Страница 18: ...16 2 Pull open the hook of IR Lens then take IR Board out WIRE DRESSING LAY OUT ...
Страница 36: ...4T B70CJ1 TROUBLE SHOOTING 4 34 ...
Страница 37: ...4T B70CJ1 TROUBLE SHOOTING 4 35 ...
Страница 40: ...4T B70CJ1 TROUBLE SHOOTING 4 38 IC3501 3502 RH IXE098WJQZQ SAMSUNG K4B2G1646F BYMA DDR ...
Страница 41: ...4T B70CJ1 TROUBLE SHOOTING 4 39 IC3101 RH IXE112WJQZQ SAMSUMG KLM4G1FETE B041 eMMC ...
Страница 42: ...4T B70CJ1 TROUBLE SHOOTING 4 40 IC8102 RH IXE211WJQZY DIALOG AS3824E1 ZQFT LED Drive ...
Страница 43: ...4T B70CJ1 TROUBLE SHOOTING 4 41 ...
Страница 44: ...4T B70CJ1 TROUBLE SHOOTING 4 42 Q8101 8108 RH TXA102WJQZY Rohm SH8KA4TB ...
Страница 45: ...4T B70CJ1 TROUBLE SHOOTING 4 43 CHAPTER 6 BLOCK DIAGRAM WIRING DIAGRAM 1 BLOCK DIAGRAM ...
Страница 47: ...4T B70CJ1 TROUBLE SHOOTING 4 45 CHAPTER 7 PRINTED WIRING DIAGRAM 1 MAIN LED UNIT PRINTED WIRING BOARD MAIN TOP ...
Страница 48: ...4T B70CJ1 TROUBLE SHOOTING 4 46 MAIN BOTTOM ...
Страница 49: ...4T B70CJ1 TROUBLE SHOOTING 4 47 2 POWER UNIT PRINTED WIRING BOARD POWER TOP ...
Страница 50: ...4T B70CJ1 TROUBLE SHOOTING 4 48 POWERBOTTOM ...
Страница 52: ...4T B70CJ1 TROUBLE SHOOTING 4 50 CHAPTER 8 SCHEMATIC DIAGRAM 1 MAIN SCHEMATIC DIAGRAM ...
Страница 53: ...4T B70CJ1 TROUBLE SHOOTING 4 51 ...
Страница 54: ...4T B70CJ1 TROUBLE SHOOTING 4 52 ...
Страница 55: ...4T B70CJ1 TROUBLE SHOOTING 4 53 2 POWER SCHEMATIC DIAGRAM 3 IR LED ALS DRIVER SCHEMATIC DIAGRAM ...
Страница 56: ...4T B70CJ1 TROUBLE SHOOTING 4 54 4 KEY SCHEMATIC DIAGRAM ...
Страница 59: ...4T B70CJ1 TROUBLE SHOOTING 4 57 2 CABINET PARTS ...
Страница 60: ...4T B70CJ1 TROUBLE SHOOTING 4 58 3 SUPPLIED ACCESSORIES ...
Страница 61: ...4T B70CJ1 TROUBLE SHOOTING 4 59 4 PACKING PARTS ...
Страница 62: ...4T B70CJ1 TROUBLE SHOOTING 4 60 ...
Страница 63: ...4T B70CJ1 TROUBLE SHOOTING 4 61 ...