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KE-42XBR900(UC)

3-1

No image

appears.

LED display

Panel module

failure

Blinks alternately.

 Blinks six times.

 Blinks four times.

G board failure

Temperature sensor

or circuit failure

Just after

start?

YES

NO

Installation

environment?

OK

NG

Fan rotation?

YES

NO

Fan or

circuit failure

Environment

improvement

 Blinks.

Just after

start?

YES: Not appear at all.

NO: Appears for a few seconds.

LED display

 Lights.

BOX LED

Blinks nine times.

Encrypted authentication

error of box or display

All is normal.

Box LED?

LED display

 Lights.

Image erasure

mode

Box failure

Abnormal

 Lights.

Priming?

YES: Light emission

NO: No light 
emission

P board failure

Check of cable

connection

KE-42XBR900(UC)

3-2

 No sound from  Both
speakers for all input

Sound not output

from speaker

       "MONITOR OUT"
             output ?

         "SUBWOOFER"
             output ?

Display Signal Out

(Black) 26pin output?

26 i

?

YES

YES

YES

YES

    NO
(DC signal only)

       NO
(try to turn up volume)
(make sure the input signal
is under 200Hz)

 •  

Check AK4114

  (IC5003) on M

 •  

Check

SN65LVDS1050
  (IC5101) on M

 •  

Check input of

NJW1149
  (IC4703) on AU

 •  

Check AK4524

  (IC5002) on M

NO

 •  

Check CXA2069Qs

(IC4001, IC4303) on AD

Possibility

 • 

Cable defect

 • 

Panel failure

No sound from one

speaker for all input

YES

"SURROUND" ON

output?

YES

 •  

Check CXA2069Q

(IC4001, IC4303) on AD

 •  

Check input of

NJW1149
  (IC4703) on AU

NO

 •  

Check output of NJW1149

  (IC4703) on AU

 •  

Check output of AK4524

  (IC5002) on M

 •  

Panel failure

NO

NO

Check the source of input signal whichsound does not
come.

 •  

Check TUNER

 •  

Check INPUT TERMINAL

 •  

Check CXA2069Q

  (IC4001, IC4303) on AD

Note)

If the condition of small or no sound occurs for only one speaker,
perform the balance adjustment beforehand as follows:

MENU 

→

 AUDIO

→

BALANCE 

→

 ADJUST

 

•

 Check of AK4524 (IC5002) on M

    No problem when around 3MHz of rectangular wave(3.3Vpp) is output from the 13-pin
    SDTO.(The rectangular wave changes depending on the audio signal.)
    For the analog system, check the inputs ( 2 and 3pins) and the outputs( 25 through 28pins). The
    outputs of these terminals change depending on the volume adjustments.

  • 

Check of AK4114 (IC5003) on M

    No problem when around 3MHz of rectangular wave(3.3Vpp) is output for the JL5003[SPDIF].
    (The rectangular wave changes depending on the audio signal.)
    Check that 48kHz of rectangular wave(3.3Vpp) is supplied to the 24-pin LRCK.(Supply source: AK4524)
    Check that 3.072MHz of rectangular wave(3.3Vpp) is supplied to the 26-pin BICK.(Supply source: AK4524)

  •  

Check of  Display Signal Out (Black) 26pin

    The output signal level is about 3.3Vpp when the Display Signal Out terminals are not connected to the
    Display unit.
    If the signals, SPDIF+/- and UART_O+/-, are output, no problem for the sending end.
    (When the Diplay Signal Out terminals are connected to the Display unit via display interface cable,
    the signal level is about 350mVpp since the signal is terminated at Display unit.)
    For receiving ends ( SIRCS input and UART input) the check can only be performed when the Display

Signal

    Out terminals are connected to the diplay unit.
 

KE-42XBR900(UC)      4-1

LVDS

CABLE DETECT

CN3101

DDC
DDC

WP

SEL1
SEL0

D3104-3107

SELECTOR

1Y0

PDF0

CLX

VSO

ALM

KE-42XBR900(UC)      4-2

CN1007

TO T BOARD 

CN1007

TO T BOARD 

CN5001

TO K BOARD 

N

CN1007

TO T BOARD 

CN701

TO R1 BOARD 

O

CN751

TO R2 BOARD 

P

ALM

VSO

RXD0

TXD0

MUTE

CLR
FIELD
FREE

PD LVDS

M