HP PL4260N Service Manual
Download Service manual of HP PL4260N - 42" Plasma TV Flat Panel TV, HDTV for Free or View it Online on All-Guides.com.
Brand: HP
Category: Flat Panel TV , HDTV , LCD TV , Plasma TV , TV , TV Receiver
Type: Service manual
Model: HP PL4260N - 42" Plasma TV , HP PL5060N
Pages: 245
64 HP High-Definition Plasma TV Service Manual PL4260N, PL5060N
Failure type Picture
Source: DIGITAL TV
Description: There is no sound when video/audio signal input
and the volume over the 20 level.
Inspection items Remarks
1 Check the connections of speaker cable with terminal on CB.
2 Check that the volume is over the 20 level.
3 Open the back cover.
4 Check the connections of XP601 on TB and XPC91 on CB.
5 Check the connections of XP003 and check whether +24V
power has been supplied to pins of L600/L601 on TB.
6 Check whether the voltage of R604 on TB is +5V.
7 Check whether there is correct sound signal on pin
#7(LX_I2SCK)/#5(LX_I2SWS)/#4(LX_I2SD1) of NP01 on TB.
8 Check whether there is correct analog sound signal on pin
#20/#21 of NP01 on TB.
9 Check whether there is correct sound signal on pin #2/#4 of
XP601 on TB.
Item Picture
Normal operation [KEY]
Description Remarks
• When power down, you can use power switch on
the left side of the TV to turn on TV.
• When TV is running normally, you can use any key
on the left side of the TV to control TV.
• Power switch has the same function as power key
on remote control.
MENU: main menu key.
OK: enter key.
VOL+: increase volume and move right cursor key.
VOL–: decrease volume and move left cursor key.
CH+: increase channel number and move up cursor key.
CH–: decrease channel number and move down cursor key.
SRC: source select and back upper menu key.
#20/#21 of NP01: output of
Power switch key