Sony KD-55S8005C Service Manual ▷ View online
KD-55/65S8505C, KD-55/65S8005C
TROUBLE SHOOTING
3-5-15. NO PICTURE: HDMI4
No Picture
Check other
HDMI input
Other Input is OK
All Inputs are NG
Check Picture by other TV set
which is same model
Reference TV
set
NG
Check Source equipment
by Reference TV set
(For example, RB1)
Check the below point at
Connector side
・
Check +5V line
・
Check HPD line
・
Check DDC lines
・
Check TMDS lines
Replace
R5467
Only DDC lines
are NG
Only TMDS lines
are NG
All lines
are NG
Check the settings of
Source equipment
Target board & other TV set
both NG
Other TV
set OK
Is Distributor used ?
No
Yes
Connect Source
equipment directly
Reference TV Set OK
Replace
CN5208
Replace
JC5239, JC5240
RB5215, RB5216
NG
NG
Only +5V line
is NG
Spec:4.7~5.3V
+5V line is OK
and HPD line
is NG
Spec:2.4~5.3
V
Change B-Board.
Replace IC5212
(HDMI EQ).
Replace
IC1000
JC5227, JC5228, JC5235, JC5236
JC5241, JC5242, JC5243, JC5244
Replace IC5212
(HDMI EQ).
If you can do
component repair
If you can do
component repair
Change B-Board.
Change B-Board.
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KD-55/65S8505C, KD-55/65S8005C
TROUBLE SHOOTING
3-5-16. NO PICTURE: MHL (BMX)
No Picture
Check voltage at
CD_SENSE_0,
R5509
Spec:High:2.0~5.3V
Low:0.8~2.0V
High
Low
NG
Check Source equipment
by Reference TV set
(For example, Samsung TV(UN46ES7000),
Toshiba TV(42WL863), RB1, RB2)
Check TMDS(D0+/D0-) lines
at connector side
NG (No communications)
Replace
RB5211
Check the settings of
Source equipment
Low (< 2V)
OK
Check DDCCLK,
at CL5256
Check RB5219 (47k )
Replace
RB5219
Change
MHL cable
OK
High
Check HDMI picture
in this input
NG
Check “NO PICTURE
– HDMI” flow
Replace IC1000 (SoC).
Check HDMI_0_HPD_CBUS
at connector side
NG (No communications)
OK
OK
Check D5205, D5206
Replace
D5205, D5206
NG (Open)
NG (Open)
Replace IC5212(HDMI EQ).
OK
126
KD-55/65S8505C, KD-55/65S8005C
TROUBLE SHOOTING
3-5-17. NO CHARGE: MHL (BMX)
No Charge
STBY
Low (< 2V)
Check DDCCLK,
at CL5256
Check RB5219 (47k )
Replace
RB5219
Change
MHL cable
OK
High
Replace IC1000 (SoC).
Check D5205, D5206
Replace
D5205, D5206
NG (Open)
The TV Power Status?
“MHL Charge During STBY”
(UI) Status?
Off
Change “MHL Charge During STBY” (UI) to “On”
CN5202 #18 pin
TV On
5V
Change MHL Cable
0V
Check voltage at
CD_SENSE_0,
R5509
NG (Open)
Low (< 2V)
High
Check IC5208 #6
(VBUS IC, Out)
Check IC5208 #3
(VBUS IC, EN)
0V
0V
Replace IC1000 (SoC).
Replace IC5208 (VBUS IC)
5V
OK
127
KD-55/65S8505C, KD-55/65S8005C
TROUBLE SHOOTING
3-6. SIDE BUTTONS MALFUNCTION
Side Key button
malfunction
Harness on Switch Unit
and B* Board properly connected
Change
Switch unit-B* board Harness
Harness
connection
issue
Change B*Board
Change Switch Unit
Switch unit issue
Harness issue
OK
NG
NG
OK
OK
Power Key (B*Board)
Check parts value :
0 ohm < R1089 < 2 ohm
4.4k ohm < R1432 < 5k ohm
Muffin IC1000
problem
NG
Power Key Muffin Pin (B*Board)
Check voltage(Power ON condition) :
3.13V < Voltage < 3.47V
NG
OK
NG
Key AD(B*Board)
Check parts value :
0 ohm < R1091 < 2 ohm
0 ohm < R1042 < 2 ohm
NG
OK
Parts Broken issue
Key AD muffin pin (B*Board)
Check voltage (Power ON condition):
1.62V < voltage < 1.84V
NG
OK
OK
NG
128
