2-98
ELECTRICAL TROUBLESHOOTING GUIDE
B
System part OK.
Check IC150, IC151, IC153
and SMPS board.
Assemble properly.
Replace IC506
(Nand Flash).
Replace X501.
Menu “Home” display
on monitor OK?
“LG Logo”
display on monitor
OK?
A
1.2 V/ 1.5 V/
3.3 V OK?
Proper
assemble MAIN
and FRONT board
OK?
IC506
NF_ALE, NF_CLE
OK?
X501
27.00 MHz
OK?
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
Check X101 and IC101.
Replace IC500 BCM7633
or IC502, IC503 (DDR3).
Reset &
UART RX,TX
OK?
NO
YES
YES
YES
Summary of Contents for HX966TZ
Page 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 ...
Page 123: ...2 110 HPD_TX 13 DDC_SDA 14 DDC_SCL 15 TXC 16 15 14 16 13 4 HDMI PART ...
Page 124: ...2 111 5 MICOM AND MPEG I F PART BCM_nRESET 17 18 19 17 MICOM_UART_RX2 18 MICOM_UART_TX2 19 ...
Page 125: ...2 112 MEMO ...
Page 152: ...2 166 2 165 PRINTED CIRCUIT BOARD DIAGRAMS 1 MAIN P C BOARD DIAGRAM TOP VIEW ...
Page 153: ...2 168 2 167 MAIN P C BOARD DIAGRAM BOTTOM VIEW ...
Page 155: ...2 172 2 171 3 AMP P C BOARD DIAGRAM TOP VIEW BOTTOM VIEW ...
Page 159: ...3 2 MEMO ...
Page 162: ...3 7 A700 3 SPEAKER SECTION 3 1 CENTER SPEAKER EXPLODED VIEW ...
Page 164: ...3 9 A900 3 3 PASSIVE SUBWOOFER EXPLODED VIEW ...
Page 177: ...4 12 2 DRIVE IC R2A30209SP SPINDLE MOTOR AND 6CH ACTUATOR DRIVER 2 1 Block Diagram ...
Page 181: ...4 16 MEMO ...