2-95
ELECTRICAL TROUBLESHOOTING GUIDE
No 5 V
Check IC154/ IC155 and replace.
Is the
Vcc 6 VA supplied to IC154/
IC155 pin2?
Check 6 VA on SMPS board.
YES
YES
NO
Is there
‘H’ signal at IC154/ IC155
pin1?
Check LDO_CTRL/ DCDC33_CTRL line
from IC101(pin58, 68).
YES
NO
No 3.3 V
Check IC152/ IC153 and replace.
Is the
Vcc 3.8 VA supplied to IC152/
IC153 pin2?
Check 3.8 VA on SMPS board.
YES
YES
NO
Is there
‘H’ signal at IC152/ IC153
pin1?
Check LDO_CTRL/ DCDC33_CTRL line
from IC101(pin58, 68).
YES
NO
2. POWER SUPPLY ON MAIN BOARD
Содержание HX966TZ
Страница 120: ...2 107 X101 20 MHz 3 X200 24 57 MHz 4 X500 27 MHz 1 X802 28 63 MHz 2 WAVEFORMS 1 SYSTEM PART 1 X TAL 1 2 4 3 IC500 IC101 ...
Страница 121: ...2 108 2 SYSTEM PART 2 DDR3 MEMORY DDR3_BA0 5 DDR3_nWE 6 DDR3_nCAS 7 DDR3_CLK01_P 8 IC500 5 6 7 8 ...
Страница 122: ...2 109 3 VIDEO PART 100 FULL COLOR BAR COMPOSITE 9 COMP_Y 10 COMP_Pb 11 COMP_Pr 12 11 12 10 9 ...
Страница 123: ...2 110 HPD_TX 13 DDC_SDA 14 DDC_SCL 15 TXC 16 15 14 16 13 4 HDMI PART ...
Страница 124: ...2 111 5 MICOM AND MPEG I F PART BCM_nRESET 17 18 19 17 MICOM_UART_RX2 18 MICOM_UART_TX2 19 ...
Страница 125: ...2 112 MEMO ...
Страница 152: ...2 166 2 165 PRINTED CIRCUIT BOARD DIAGRAMS 1 MAIN P C BOARD DIAGRAM TOP VIEW ...
Страница 153: ...2 168 2 167 MAIN P C BOARD DIAGRAM BOTTOM VIEW ...
Страница 155: ...2 172 2 171 3 AMP P C BOARD DIAGRAM TOP VIEW BOTTOM VIEW ...
Страница 159: ...3 2 MEMO ...
Страница 162: ...3 7 A700 3 SPEAKER SECTION 3 1 CENTER SPEAKER EXPLODED VIEW ...
Страница 163: ...3 8 A800T A800M A800B 851 Screw 16ea 852 Screw 4ea 850 852 851 3 2 FRONT REAR SPEAKER EXPLODED VIEW ...
Страница 164: ...3 9 A900 3 3 PASSIVE SUBWOOFER EXPLODED VIEW ...
Страница 177: ...4 12 2 DRIVE IC R2A30209SP SPINDLE MOTOR AND 6CH ACTUATOR DRIVER 2 1 Block Diagram ...
Страница 181: ...4 16 MEMO ...