HT-NT5
38
SECTION 4
TROUBLESHOOTING
Power does not turn on.
(front panel display does not
appear)
When connecting the TV monitor to
the main unit by the HDMI cable,
and disconnecting/connecting the
AC power cord, the video is
displayed on the TV monitor.
The voltage of the following is 33 V.
POWER board: CN904 pin 3 to 5
The voltage of the following is 12 to
18 V.
POWER board: CN904 pin 9
Yes
Yes
No
No
Yes
Replace the complete MB-1509
board.
Yes
Fusible resistor (R914) on the
POWER board conduct the
electricity.
Fuse (F901) on the POWER board
conduct the electricity.
No
Yes
Replace the complete POWER
board.
Replace the IC930 and fusible
resistor (R914) on the POWER
board.
No
Replace the fuse (F901) on the
POWER board.
No
The voltage of the following is 3.3 V.
MB-1509 board:
IC5001 pin 11 (PCONT_OLED)
Yes
Yes
Replace the complete MB-1509
board.
No
Replace the fuse (F6001) on the
AMP board.
No
The voltage of the following is 12 V.
MB-1509 board:
test point (JL318) (OLED_12V)
Yes
Replace the complete MB-1509
board.
No
&KHFNWKH)3&LQVHUWLQJVWDWXVRI
the organic EL indicator element
that is inserted to the connector
(CN1302) on the DISPLAY board.
&KHFNWKH))&LQVHUWLQJVWDWXV
between the connector (CN1303)
on the DISPLAY board and the
connector (CN5003) on the
MB-1509 board.
5HSODFHWKHFRPSOHWH',63/$<
board.
– Continued on page 39 –
Fuse (F6001) on the AMP board
conduct the electricity.
Summary of Contents for HT-NT5
Page 40: ...MEMO HT NT5 40 ...
Page 73: ...MEMO HT NT5 73 ...
