Read Sony HT-RT5 Service Manual online
HT-RT5
38
4. Power is not turned on
Power is not turned on.
The voltage of the following is 12 V.
BAR-AMP board: CN6007 pin 5
BAR-AMP board: CN6007 pin 5
Yes
Yes
Yes
Yes
Vibrator (X3001) on the MB-1414
board is oscillated after AC input.
board is oscillated after AC input.
Yes
No
No
No
Check the outputted of related IC
to the MB-1414 board.
to the MB-1414 board.
Replace the
switching regulator
(3L408W) (SWR1)
.
Yes
Yes
Yes
Yes
The each voltages are no problem.
Check functioning the IC6003 on
the BAR-AMP board.
the BAR-AMP board.
The reset signal is inputted to pin
49 of IC3004 on the MB-1414 board
after AC input (there is a quick low
pulse to indicate reset signal).
49 of IC3004 on the MB-1414 board
after AC input (there is a quick low
pulse to indicate reset signal).
Replace the power supply IC.
No
The voltage of the following is 12 V.
MB-1414 board: CN301 pin 5
MB-1414 board: CN301 pin 5
The voltage of the following is 3.3 V.
MB-1414 board: CN703 pin 22
(PVDD-STBY)
MB-1414 board: CN703 pin 22
(PVDD-STBY)
Replace the complete MB-1414
board.
board.
No
The voltage of the following is 3.3 V.
MB-1414 board: IC3004 pin 1
MB-1414 board: IC3004 pin 1
Yes
Replace the complete MB-1414
board.
board.
No
Replace the complete MB-1414
board.
board.
No
Replace the complete MB-1414
board.
board.
No
Replace the complete MB-1414
board.
board.
No
Reprogram the IC3004 (IF-
Pcon)
on the MB-1414 board.
Yes
The voltage of the following is 18 V
(standby status) or 23 V (power on
status).
switching regulator
(3L408W) (SWR1):
CN101 pin 2 and 8 to 10
(standby status) or 23 V (power on
status).
switching regulator
(3L408W) (SWR1):
CN101 pin 2 and 8 to 10
The outputted from the following
pins are “H”.
IC3004 on the MB-1414 board:
pin 65 (SPARTA_PCONT)
pin 119 (PCONT1)
pin 123 (PCONT3)
pins are “H”.
IC3004 on the MB-1414 board:
pin 65 (SPARTA_PCONT)
pin 119 (PCONT1)
pin 123 (PCONT3)
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