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Check other 

Other Input is OK

Check the below point at

Connector side

・Check +5V line 

All lines

are NG

Replace 

If you can do 
component repair

Change B-Board

HDMI input

All Inputs are 
NG

Check Picture by other TV set

・Check HPD line

・Check DDC lines

・Check TMDS lines

Only TMDS lines

are NG

CN5202

NG

Only +5V line

is NG

Spec:4.7~5.3V

+5V line is OK 
and HPD line

is NG 

Change B-Board

Change B Board.

which is same model 

Replace 

R5517, R5518

Only DDC 
lines

are NG

Target board & other TV set 

both NG

Other TV set 
OK

Connect Source

Replace 

JC5208, JC5209

RB5211, RB5212

NG

Spec:2.4~5.3
V

If you can do 
component repair

Change B-Board.

Check Source equipment

by Reference TV set

Is Distributor used ?

No

Yes

Connect Source

equipment directly

Change B-Board.

Replace IC5212 

(HDMI EQ).

Replace IC5212 

Reference TV set 
NG

(For example, RB1)

Check the settings of 

Reference TV Set OK

Replace 

IC1000

JC5227, JC5228, JC5235, JC5236

(HDMI EQ).

Source equipment

JC5227, JC5228, JC5235, JC5236

JC5241, JC5242, JC5243, JC5244 

105

Ch

k th

Other Input is OK

Check the below point at

Connector side
Ch

k +5V li

All lines

are NG

Replace

If you can do 
component repair

Check other 

HDMI input

Other Input is OK

All Inputs are 
NG

Ch

k Pi t

b

th

TV

t

・Check +5V line 
・Check HPD line

・Check DDC lines

・Check TMDS lines

Only TMDS lines

are NG

are NG

Replace 

CN5203

NG

Only +5V line

is NG

+5V line is OK 
and HPD line

component repair

Change B-Board.

Check Picture by other TV set

which is same model 

Replace 

R5428

Only DDC lines

are NG

are NG

Target board & other TV set 

both NG

Other TV 
set OK

Replace 

JC5237, JC5238

RB5213, RB5214

NG

is NG

Spec:4.7~5.3V

is NG 

Spec:2.4~5.3
V

If you can do 
component repair

Change B-Board.

Check Source equipment

by Reference TV set

Is Distributor used ?

No

Yes

Connect Source

equipment directly

Change B-Board.

Replace IC5212 

(HDMI EQ).

Replace IC5212 

Reference TV 

set

NG

y

(For example, RB1)

Ch

k th

tti

f

Reference TV Set OK

g

Replace 

IC1000

JC5227 JC5228 JC5235 JC5236

p

(HDMI EQ).

Check the settings of 

Source equipment

JC5227, JC5228, JC5235, JC5236

JC5241, JC5242, JC5243, JC5244 

106

Check other

Other Input is OK

Check the below point at

Connector side

・Check +5V line

All lines

are NG

Replace

If you can do 
component repair

Check other 

HDMI input

All Inputs are NG

Ch

k Pi t

b

th

TV

t

・Check +5V line 
・Check HPD line

・Check DDC lines

・Check TMDS lines

Only TMDS lines

NG

are NG

Replace 

CN5208

NG

Only +5V line

is NG

Spec:4 7~5 3V

+5V line is OK 
and HPD line

i NG

Change B-Board.

Check Picture by other TV set

which is same model 

Replace 

R5467

Only DDC lines

are NG

are NG

Target board & other TV set 

both NG

Other TV 
set OK

Replace 

JC5239, JC5240

RB5215, RB5216

NG

Spec:4.7~5.3V

is NG 

Spec:2.4~5.3
V

If you can do 
component repair

Change B-Board.

Check Source equipment

by Reference TV set

Is Distributor used ?

No

Yes

Connect Source

equipment directly

Change B-Board.

Replace IC5212 

(HDMI EQ).

Reference TV 

set

NG

y

(For example, RB1)

Check the settings of

Reference TV Set OK

g

Replace IC5212

(HDMI EQ).

Replace 

IC1000

Check the settings of 

Source equipment

JC5227, JC5228, JC5235, JC5236

JC5241, JC5242, JC5243, JC5244 

107

Notes:
- Parts for IFOUT_N line: R6007, FB6002, C6008, R6327, 
C6301, R6301.
- Parts for IFOUT_P line: R6008, FB6003, C6009, R6326, 
C6300, R6300.
- Parts for IFAGC line: R6072, R6009, R6010, R6069, C6302, 
R6303.

: Insert correct signal in correct terminal.

A

Analog Tuning

For LA-ISDB(BR/AR), LA-T2(COL) and TW only

For Other destination

Confirm ANT or Cable connection

A

NG

OK

NG

Change NG parts

Check part mounting condition for 

analog control line

“IFOUT_N, IFOUT_P, IFAGC”

OK

Check IC1000(SOC)

108