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HISTORY INFORMATION FOR THE FOLLOWING MANUAL:
SERVICE MANUAL (COMMON)
ITC3.5 CHASSIS
Segment: SE
Version Date Subject
1 |
07/2014 1st Issue. |
LCD TV
9-888-162-01
For SM - Unique , please refer :
9-888-162-Ax ( America )
9-888-162-Ex ( Europe )
9-888-162-Px ( Pan Asia )
SERVICE MANUAL (COMMON)
ITC3.5 CHASSIS
Segment: SE
LCD TV
MODEL LIST
THIS SERVICE MANUAL CONTAINS COMMON INFORMATION FOR BELOW REGIONS AND MODELS:
REGION |
|
ASIA |
AMERICA EUROPE |
MODEL
KLV-32R3*B KLV-40R3*B
KDL-32R3*B KDL-40R3*B
3
TABLE OF CONTENTS
Section Title |
|
Page |
1. SAFETY NOTES |
|
|
1-1. |
Warnings and Caution………………………………………………………. |
5 |
1-2. |
Caution Handling of LCD Panel ......…………….................................... |
5 |
1-3. |
Caution About the Lithium Battery……………......................................... |
6 |
1-4. |
Safety Check Out ........................……………......................................... |
6 |
1-5. |
Leakage Test .......................................................................................... |
6 |
1-6. |
How to Find a Good Earth Ground………………………………………… |
6 |
1-7. |
Lead Free Information….…………………………………………………… |
7 |
1-8. |
Handling the Flexible Flat Cable (FFC)……………………………………. |
7 |
2. SELF DIAGNOSTIC FUNCTION |
|
|
2-1. |
Overview of Control Buttons ................................................................... |
8 |
2-2. |
LED Display Control ………..................................................................... |
8 |
2-3. |
LED Pattern………………........................................................................ |
8 |
2-4. |
Standby LED Error Display…………………………………………………. |
8 |
2-5. |
Triage Chart ............................................................................................ |
9 |
3. TROUBLE SHOOTING |
|
|
3-1. |
General..................................................................................................... |
10 |
3-2. |
No Power…….……………………………………………………………….. |
10 |
3-3. |
Standby LED Blinking....…………............................................................ |
14 |
3-4. |
No Picture................................................................................................. |
23 |
3-5. |
Audio.............................…………………………………………................. |
26 |
3-6. |
Video Problem.......................................................................................... |
36 |
3-7. |
HDMI……………..……...……………………………………………………. |
45 |
3-8. |
Tuner…………………………………………………………………………. |
50 |
3-9. |
CI…………………………………..……………………………………… |
61 |
3-10. |
Tact Buttons………………………………………………………………… |
65 |
3-11. |
IR………………………………………………………………………………. |
68 |
Section Title |
Page |
|
4. SERVICE ADJUSTMENTS |
|
|
4-1. |
Accessing Service Mode ..................................................................... |
69 |
4-2. |
Accessing Software Version....................……….……………………… |
69 |
4-3. |
Accessing Self Diagnostic History………………………………..…….. |
70 |
4-4. |
Accessing Self Diagnostic Menu………………………………………... |
70 |
4-5. |
Accessing Serial Number Edit……………….………………………….. |
71 |
4-6. |
Accessing Model Name Edit................................................................ |
72 |
5. DIAGRAMS |
|
|
5-1. |
Circuit Board Location ......................................................................... |
74 |
5-2. |
Block Diagram...................................................................................... |
75 |
5-3. |
Connector Diagram ………………………………………...................... |
79 |
Please refer Service Manual – Unique for below information : -Safety Warnings
-Wire Dressing
-Circuit Board Location
-Disassembly and Exploded View.
4
SECTION 1
SAFETY NOTES
1-1. Warnings and Caution
1)These servicing instructions are for use by qualified service personnel only.
2)To reduce the risk of electric shock, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so.
3)An isolation transformer should be used during any service to avoid Possible shock hazard, because of live chassis. The chassis of this receiver is directly connected to the ac power line.
4)Be sure to follow these guidelines to protect your property and avoid causing serious injury :
• Carry the TV with an adequate number of people; larger size TVs require two or more people.
• Correct hand placement while carrying the TV is very important for safety and to avoid damages.
5) Components identified by shading and ! mark on the exploded views, and in the parts list are critical for safe operation. Replace these components with Sony parts whose part numbers appear as shown in this manual or in supplements published by Sony. Circuit adjustments that are critical for safe operation are identified in this manual. Follow these procedures whenever critical components are replaced or improper operation is suspected.
1-2. Caution Handling of LCD Panel
When repairing the LCD Panel, make sure you are grounded with a wrist band. When repairing the LCD Panel on the wall, the panel must be secured using the 4 mounting holes on the rear cover.
1)Do not press the panel or frame edge to avoid the risk of electric shock.
2)Do not scratch or press on the panel with any sharp objects.
3)Do not leave the module in high temperature or in areas of high humidity for an extended period of time.
4)Do not expose the LCD panel to direct sunlight.
5)Avoid contact with water. It may cause short circuit within the module.
6)Disconnect the AC power when replacing the backlight (CCFL) or
inverter circuit. (High voltage occurs at the inverter circuit at 650Vrms)
7)Always clean the LCD panel with a soft cloth material.
8)Use care when handling the wires or connectors of the inverter circuit.
Damaging the wires may cause a short circuit.
9)Protect the panel from ESD to avoid damaging the electronic circuit (C-MOS).
10)During the repair, DO NOT leave the Power On or Burn-in period for more than 1 hour while the TV is face down on a cloth.
Figure 1. TV is faced down on a cloth during repair.
5
Safety Notes
1-3. Caution About the Lithium Battery
1) Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type.
2) Outer case broken battery should not contact to water.
1-4. Safety Check-Out
After correcting the original service problem, perform the following safety checks before releasing the set to the customer:-
1)Check the area of your repair for unsoldered or poorly soldered connections. Check the entire board surface for solder splashes and bridges.
2)Check the inter board wiring to ensure that no wires are pinched or
contact high-wattage resistors.
3)Check all control knobs, shields, covers, ground straps and mounting hardware have been replaced. Be absolutely certain you have replaced all the insulators.
4) Look for unauthorized replacement parts, particularly transistors that
were installed during a previous repair. Point them out to the customer and recommend their replacement.
5)Look for parts which, though functioning show obvious signs of deterioration. Point them out to the customer and recommend their replacement.
6)Check the line cords for cracks and abrasion. Recommend the replacement of any such line cord to the customer.
7)Check the antenna terminals, metal trim, metalized knobs, screws and all
other exposed metal parts for AC leakage. Check leakage test as described next.
8. For safety reasons, repairing the Power board and/or Inverter board is prohibited.
1-5.Leakage Test
The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis must not exceed 0.5mA (500 microamperes).
Leakage current can be measured by any one of the three methods:-
1)A commercial leakage tester such as the SIMPSON 229 or RCA WT540A. Follow the manufacturers instructions to use those instructions.
2)A battery-operated AC milliampmeter The DATA PRECISION 245 digital multimeter is suitable for this job.
3) Measuring the voltage drop across a resistor by means of a VOM or battery operated AC voltmeter. The 'limit' indication is 0.75V so analog meters must have an accurate low voltage scale. The SIMPSON'S 250 and SANWA SH-
63TRD are examples of passive VOMs that are suitable. Nearly all battery operated digital multimeter that have a 2 VAC range are suitable.
(see Figure 2.)
Figure 2. AC voltmeter to check AC leakage
1-6. How to Find a Good Earth Ground
1)A cold-water pipe is a guaranteed earth ground; the cover-plate retaining screw on most AC outlet boxes is also at earth ground.
2)If the retaining screw is to be used as your earth ground, verify that it is at ground by measuring the resistance between it and a cold-water pipe with an ohmmeter. The reading should be zero ohms.
3)If a cold-water pipe is not accessible, connect a 60to 100-watt troublelight (not a neon lamp) between the hot side of the receptacle and the
retaining screw. Try both slots, if necessary, to locate the hot side on the line; the lamp should light at normal brilliance if the screw is at ground potential (see Figure 3).
Figure 3. Checking for earth ground.
6
Safety Notes
1-7. Lead Free Information
The circuit boards used in these models have been processed using Lead Free Solder. The boards are identified by the LF logo located close to the board designation.
Figure 4: LF Logo |
Figure 5: LF logo on circuit board |
The servicing of these boards requires special precautions. It is strongly recommended to use Lead Free Solder material in order to guarantee optimal quality of new solder joints.
1-8. Handling the FLEXIBLE FLAT CABLE (FFC)
When you insert / pull out FFC, please grasp a reinforcement board and main body of FFC.
Please hold reinforcement board and plunge it to depths.
Main Board
< Insertion>
Release Button
of Connector
FFC connector broken if pull out FFC without press and hold both Release Button of Connector. Symptom 5X blinking will be appear due to improperly seated.
Please pull out FFC while pushing the button of both ends at the same time.
Main Board
<Pull out>
7
Self Diagnostic Function
SECTION 2
SELF DIAGNOSTIC FUNCTION
2-1. Overview of Control Buttons
2-2. LED Display Control |
Amber = Red + Green |
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Status |
LED Colour |
Remarks |
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Power Off ( AC Off and *1) |
OFF |
*1 power switch off (by touch button) |
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Power On |
Green |
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Standby( by remote control |
OFF |
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off only ) |
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Picture Off |
Green |
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Set "Sleep Timer" |
Amber |
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Set "On Timer” ( Power On ) |
Amber |
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Set "On Timer”( Standby ) |
Amber |
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Picture Frame |
Amber |
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Failure |
Red Blinking |
The number of LED blinking indicates |
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cause of failure. |
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Error of panel ID |
Amber/Green |
Blinking:0.5sec Amber/ 0.5sec Green |
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Blinking |
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6 |
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Software Updating |
Amber |
Blinking: 1sec On / 1sec Off |
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Blinking |
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2-3. LED Pattern
When safety shutdown occurs, Standby LED display reports the cause by using the lightning patterns as indicated below.
0.5sec |
3.0sec |
3.0sec |
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0.5sec
Example: The figure above shows LED display when SHUTDOWN is caused by Audio
Error. It repeats flashing for a specified number of times in 0.5sec/cycle and has a 3 seconds interval of lighting off. Please note that a 3 seconds interval of lighting off is fixed regardless of abnormal state types.
2-4. Standby LED Error Display
The Number of Standby LED |
Detection Items |
Board Error Item |
(RED blinking) |
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2 |
Main Power Error |
AC adapter Error |
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3 |
Audio Error |
B* board Error |
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4 |
Panel Power Error |
B* board Error |
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5 |
Panel I2C COMM Error |
B* or Source board Error |
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6 |
Backlight Error |
B* board Error |
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Size |
B* Board Type |
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PAN ASIA,AMERICA |
EUROPE |
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32” |
BIS2 |
BIL2 |
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40” |
BIS2 |
BIL2 |
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8
Self Diagnostic Function
2-5. Triage Chart
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Blinking |
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No Picture |
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No Sound |
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Reference |
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UI OK |
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5 |
6 |
UI NG |
Tuner |
USB |
Video |
Component |
HDMI |
SCART |
Main |
HP |
Video |
Component |
Tuner |
HDMI |
SCART |
USB |
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Speaker |
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B* Board |
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HK Board |
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Light Source |
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Open Cell |
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AC Adaptor |
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Speaker Unit |
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LS Harness |
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FFC Cable |
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Most likely defective part
Secondary possible defective part
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Size |
B* Board Type |
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PAN ASIA,AMERICA |
EUROPE |
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32” |
BIS2 |
BIL2 |
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40” |
BIS2 |
BIL2 |
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9
Troubleshooting
SECTION 3
TROUBLESHOOTING
3-1. General
START
Does the Power Led
Open Detail
stay on when the
- No Power
TV is switched on ?
Is the Standby Led |
Open Detail |
blink ? |
- Standby LED Blink |
Green & Amber |
- Panel ID Error |
blink? |
- Panel Not Supported |
Is the Picture and |
Open Detail |
Sound OK ? |
- Picture/Audio/Video |
END
3-2. No Power
No Power
No
B-Board
Check DC voltage at
JL6001 19V - 19.5V?
No Adaptor
Take out adaptor
and check the output voltage. 19V – 19.5V?
(Refer Figure 1) No
Adaptor
Change adaptor
and recheck the output voltage. 19V – 19.5V?
(Refer Figure 1)
No
AC source
Yes |
•See DDCON |
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Sheet |
Yes
B-board
Yes
Adaptor
Size |
B* Board Type |
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PAN ASIA,AMERICA |
EUROPE |
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32” |
BIS2 |
BIL2 |
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40” |
BIS2 |
BIL2 |
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10
3-2. No Power
3-2-1. DD Con
Start
B-Board
Check voltage at JL6003 3.3V?
Yes
B-Board
Check voltage at JL6000 1.2V?
Yes
B-Board
Check voltage at JL6002 1.5V?
Yes
B-Board
Check voltage at JL6005 5V?
Yes
No
No
No
No
DDCON
OK
B-Board
Check fuse.
F6001 & F6002
Change B-board
Change B-board
Change B-board
No
Fuse
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DDCON |
B-Board |
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OK |
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Check voltage at : |
No |
B-Board |
BIS2 JL6012. |
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Check Fuse. |
BIL2 JL6007. |
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F6003 |
12V? |
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No |
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Fuse |
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Size |
B* Board Type |
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After checking, take note of |
PAN ASIA,AMERICA |
EUROPE |
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NG condition & change B board |
32” |
BIS2 |
BIL2 |
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40” |
BIS2 |
BIL2 |
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11
BIS2
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JL6003 |
F6002 |
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JL6012
JL6009
JL6002
F6001
JL6006
JL6001
F6003
JL6005 |
JL6000 |
LVDS FFC
CONNECTOR
12
BIL2
F6002
F6003
JL6002 |
F6001 |
JL6009
JL6003
JL6006
JL6001
JL6000
JL6007
JL6005
LVDS FFC
CONNECTOR
13
3-3. Standby LED Blinking
3-3-1. 2 times blinking
-ve
+ve
Ensure that +ve probe is touching the
needle.
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2 times Blinking
B-Board
Check DC voltage at JL6001
19V - 19.5V?
No
Adaptor
Take out adaptor
and check the output voltage.
19V – 19.5V? (Refer Figure 1)
No
Change adaptor
Yes
Change B-board
Yes
Change B-board
Size |
B* Board Type |
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PAN ASIA,AMERICA |
EUROPE |
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32” |
BIS2 |
BIL2 |
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40” |
BIS2 |
BIL2 |
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14
3-3. Standby LED Blinking
3-3-2. 3 times blinking
START |
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3x blinking |
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Speaker impedance |
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Remove |
No 3x blinking |
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≠ 6~8 Ω |
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Speaker Connector |
Check Speaker harness |
Change |
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at CN4500 & perform |
and Speaker impedance |
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Speaker |
AC OFF - ON |
No connectivity |
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3x blinking |
for speaker harness |
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Change |
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Speaker
Harness
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3x blinking |
Connect back |
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Speaker Connector to CN4500 |
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No connectivity |
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& perform AC OFF - ON |
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of F4000 |
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No 3x blinking |
Check |
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F4500 broken |
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of |
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3x blinking & F4000 OK
Audio IC
IC4500
Change B board
DONE
Size |
B* Board Type |
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PAN ASIA,AMERICA |
EUROPE |
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32” |
BIS2 |
BIL2 |
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40” |
BIS2 |
BIL2 |
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15
BIS2_Board
F4000
IC4500
CN4500
F4000
IC4500
16
BIL2_Board
IC4500
F4000
CN4500
IC4500
F4000
17
3-3. Standby LED Blinking
3-3-3. 4 times blinking
No 12V
Check Fuse. |
No |
(F6003) ok? |
Fuse |
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Yes |
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Check JL6009. |
No |
3.3V? |
B-board |
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Yes |
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Check JL6007. |
No |
12V? |
DDCON |
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Yes |
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LVDS |
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Size |
B* Board Type |
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PAN ASIA,AMERICA |
EUROPE |
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32” |
BIS2 |
BIL2 |
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40” |
BIS2 |
BIL2 |
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18
BIS2
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JL6003 |
F6002 |
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JL6012
JL6009
JL6002
F6001
JL6006
JL6001
F6003
JL6005 |
JL6000 |
LVDS FFC
CONNECTOR
19
BIL2
F6002
F6003
JL6002 |
F6001 |
JL6009
JL6003
JL6006
JL6001
JL6000
JL6007
JL6005
LVDS FFC CONNECTOR
20
3-3. Standby LED Blinking
3-3-4. 5 times blinking
Remove and
Flexible Cable (FFC)
Panel
Replace LVDS
Cable
5x Blinking is Still
Observed
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TV Boots Up |
B-Board |
Normally |
B-Board Issue |
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5x Blinking is Still |
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Observed |
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TV Boots Up |
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Replace |
Normally |
O-Cell Issue |
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*Panel Module |
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* O-Cell or Panel Module replacement depends on service capabilities
END
Size |
B* Board Type |
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PAN ASIA,AMERICA |
EUROPE |
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32” |
BIS2 |
BIL2 |
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40” |
BIS2 |
BIL2 |
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21
3-3. Standby LED Blinking
3-3-5. 6 times blinking
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BIL2 Board |
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6x blinking |
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Check if LED harness/FFC (CN9000) |
NG |
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is connected properly |
Connect LED harness |
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Symptom gone |
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Change B Board |
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B board |
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6x blinking |
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Able to repair |
No |
Change Panel Module |
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Panel Module |
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Yes |
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Change Harness |
Symptom gone |
Harness |
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6x blinking |
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*To avoid changing all LS bar, please follow steps below |
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CN9000 |
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Replace LS Bar* |
(1) |
Turn off AC |
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(2) Unplug DC adaptor from DC jack |
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(3) Plug in DC adaptor to DC jack |
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(4) |
Turn on AC |
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(5) LS bar will turn on for ~4s before 6x blinking |
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(6) Observe which LS bar cannot turn on during power on |
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(7) Replace LS bar that failed to turn on |
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Size |
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B* Board Type |
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PAN ASIA,AMERICA |
EUROPE |
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32” |
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BIS2 |
BIL2 |
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40” |
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BIS2 |
BIL2 |
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22
3-4. No Picture
3-4-1. General
No Picture
Check Input Source: |
Input |
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OK |
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-Tuner |
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Replace LVDS FFC |
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- |
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- |
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Input NG |
Picture OK |
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Replace Input |
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Source |
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Still No
Picture
Replace B-Board
Picture OK
B-Board Issue
Still No
Picture
Check |
+12V |
PANEL_VCC_SW at |
OK |
+12V NG
*Panel Module
or *O-Cell
Problem
Picture OK
Panel or O-Cell
Issue
* O-Cell or Panel Module replacement depends on service capabilities
BL_ON
CHECK BL_ON on |
OK |
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B-Board at JL9012. |
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HIGH (+3.3V): OK |
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LOW (0V): NG |
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BL_ON NG
Backlight or LED Driver
Problem
END
Size |
B* Board Type |
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PAN ASIA,AMERICA |
EUROPE |
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32” |
BIS2 |
BIL2 |
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40” |
BIS2 |
BIL2 |
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23
“NO PICTURE” Probing Points
PANEL_VCC
Note :
PANEL_VCC_SW = 12V±0.8V
JL6007
BIS2 Board
BL_ON
JL9012 Note :
BL_ON = +3.3V (OK)
BL_ON = 0V (NG)
24
“NO PICTURE” Probing Points
PANEL_VCC
Note :
PANEL_VCC_SW = 12V±0.8V
JL6007
BIL2 Board
BL_ON
JL9012 Note :
BL_ON = +3.3V (OK)
BL_ON = 0V (NG)
25
3-5. Audio
3-5-1. General
Audio Problem |
Main Speaker No Sound |
HP Out No Sound
Video/Component or HDMI 2 no sound?
Analog RF no sound?
HDMI Audio no sound?
USB Audio no sound?
Refer “Main Speaker No
Sound”
Refer “HP Out
No Sound”
Refer “Analog Audio Input
No Sound”
Refer “Analog RF
No Sound”
Refer “HDMI Audio
No Sound”
Refer “USB Audio
No Sound”
26
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