Troubleshooting - Sony HT-X9000F Service Manual

1. Protection mode is occurs after turning the power on.
When protection mode is occurs, all LEDs are fl ash for 5 seconds and turn the power off.
Protection mode is occurs after
turning the power on (all LEDs are
flash for 5 seconds and turn the
power off).
Yes
IC6006 on the SK1 AMP board is
burned out.
No
Protection mode is not occurs, when
removing the speaker connection
connector (CN6003, CN6004) on
the SK1 AMP board and turning the
power on.
No
The voltage of the following is 3.3 V.
MAIN board: IC3006 pin 138
No
The voltage of the following is 12 V.
SK1 AMP board: IC6006 pin 2
No
Check the area surrounding IC6001
and IC6005 on the SK1 AMP board.
If IC6001 is abnormality, replace the
SK1 AMP board.
If IC6005 is abnormality, replace the
IC6005 on the SK1 AMP board.
SECTION 4

TROUBLESHOOTING

Yes
Replace the IC6006 on the SK1 AMP
board.
Check and replace the speaker (SP1,
Yes
SP2), check and repair the connection
cable with speaker.
Yes
The voltage of the following is 3.3 V.
MAIN board: IC3006 pin 124
No
OUT_A (pin 39, 40), OUT_B (pin 35),
OUT_C (pin 32) and OUT_D (pin 27, 28)
lines of IC6006 on the SK1 AMP board do
not short-circuits or opens.
If there is no abnormality, check the area
surrounding transistor (Q6001 to Q6003)
on the SK1 AMP board.
Mounted parts on the OUT_A (pin 39, 40),
Yes
OUT_B (pin 35), OUT_C (pin 32) and
OUT_D (pin 27, 28) lines of IC6006 on the
SK1 AMP board short-circuits or opens.
No
The PWM signal is inputted INPUT_A
(pin 5), INPUT_B (pin 6), INPUT_C
(pin 14) and INPUT_D (pin 15) lines of
IC6006 on the SK1 AMP board.
No
Check the area surrounding IC6007 on the
SK1 AMP board.
If IC6007 is abnormality, replace the
IC6007 on the SK1 AMP board.
If IC6007 is normal and area surrounding
IC6007 is abnormal, replace the SK1 AMP
board.
HT-X9000F/XF9000
Yes
Replace the SK1 AMP board.
abnormality
Replace the SK1 AMP board.
Yes
Repair the short-circuit and opening of
mounted parts.
Yes
Replace the IC6006 on the SK1 AMP
board.
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