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ELECTRICAL TROUBLESHOOTING GUIDE
No 3.8 VA
Is F901 normal?
Replace F901(same fuse).
YES
YES
NO
Is TH901 normal?
Is BD901 normal?
Is the Vcc
(11 V ~ 25 V) supplied to IC901
pin4?
Replace TH901.
Replace BD901.
Is D922/ D923 normal?
Check or replace D922/ D923.
YES
YES
YES
YES
NO
NO
NO
Power line of MAIN board is short.
1. POWER SUPPLY ON SMPS BOARD
No 12 V
Check IC151 and replace.
Is the
Vcc 14 VA supplied to IC151
pin2?
Check 14 VA on SMPS board.
YES
YES
NO
Is there
‘H’ signal at IC151
pin1?
Check P_CTL from µ-com.
YES
NO
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 ...