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KLV-30MR1(AEP)

1-14

1

 Two screws

     (+BVTP 3X12)

2

 H1 Board

1

 Two screws

     (+BVTP 3X12)

Front panel

KLV-30MR1(AEP)

1-15

1

 Two screws

     (+BVTP 3X12)

2

 H4 Board

Front panel

KLV-30MR1(AEP)

2-1

No image

appears.

LED display

Panel module

failure

 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

KLV-30MR1(AEP)

2-2

YES

OK

OK

OK

NG

YES

OK

NG

NO

NO

YES

NO

Sound not output 
from display unit

No sound from both channels 
for all input sources

Audio Output terminal 

Subwoofer terminal

Display Signal Out 
terminal (Black)

Probable cause

•

 Cable defect

•

 Defect of display unit

Check two CXA2069Q's

•

 Center Speaker

   Check switch circuit

•

 Check input of NJW1149

•

 Check AK4524

•

 Check AK4114

•

 Check SN65LVDS1050

NG
(Try to turn up volume)
(Check frequency component)

NG
(DC only)

No sound from only one 
channel for all input sources

Surround-sound system turning on

•

 Check output of NJW1149

•

 Check AK4524 (Analog input)

•

 Possibility of display unit defect

No sound for BS reception only

•

 Check input of NJW1149

•

 Check IF board

•

 Check B block

Determine signal source of 
defective input 

•

 Check ground wave tuner

•

 Check external input terminal

•

 Check two CXA2069Q's

Check of AK4524
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 3 pins) and the outputs (25 through 28 pins). The outputs of these 
terminals change depending on the volume adjustments. 

Check of AK4114
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 terminals (Black)
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 Display Signal Out terminals are connected to the display unit, 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 display unit. 

Note:
When the insertion of the headphone terminal is detected, the display unit and the woofer 
terminal do not output the sound.
In this condition, when the volume operation is performed, the headphone icon is 
displayed.

If the condition of small or no sound occurs for only one channel, perform the balance 
adjustment beforehand:
Select [AUDIO ADJ.] and [BALANCE] in order from the menu display for each input 
source. 

•

 Check two CXA2069Q's

•

 Check input of NJW1149