Samsung UN55ES8000F Service manual

Samsung Techtalk
Your source for service information
Samsung Techtalk
Your source for service information
Inside this issue
May, 2013
1 Five Grand Prize Winners Awarded in Samsung’s $1 Million Solve for Tomorrow National
Education Contest
3 Multiple Parts Usage: An Overview
5 Samsung Field Service Announces 2013 KPI Definitions and Measurements
8 2013 TV Training Now Online on Plus 1!
9 2013 HA Training Now Online on Plus 1!
10 2013 Samsung RTC TV Training
12 2013 Samsung RTC Home Appliance Training
Stopping REDO
13 Stopping REDO: Random Lockups in UN**ES7500/UN**ES8000 LED TVs
14 Stopping REDO: How to Identify DMD Board Failures
CE Tech Tips
16 Quick Tip: Mini Components
17 UN55F8000 Power-Up Sequence
Samsung Techtalk
Your source for service information
Inside this issue
May, 2013
19 UNxxF8000 Local Dimming Test
21 2013 Bluetooth Module Troubleshooting
23 CE GSPN Updates
HA Tech Tips
24 Washers: The Pure Cycle Function
25 The New Style Refrigerator Inverter Board
27 Frozen Water Tank, No Ice, No Water, and a Water Leak
29 New Anti-Tip Bracket Design for Samsung Ranges
30 HA GSPN Updates
Samsung Techtalk
Your source for service information
Samsung Electronics America
85 Challenger Road
Ridgefield Park, NJ 07660
E-mail:
training@sea.samsung.com
The information in this newsletter is published for experienced
repair technicians only and is not intended for use by the public.
It does not contain warnings to advise non-technical individuals
of the dangers that exist when servicing a product. Only
experienced professional technicians should repair products
powered by electricity. Any attempt to service or repair a product
or products using the information in this newsletter by anyone
other than a trained professional technician could result in
serious injury or death. Information provided in this bulletin is
subject to change or update without notice.
© Copyright Samsung Electronics America 2013
Five Grand Prize Winners Awarded
in Samsung’s $1 Million Solve for
Tomorrow National Education Contest
By Paul Yun, Assistant Manager, Op Support - Strategic Planning
Public schools from California, Florida, Minnesota, New Mexico, and New York each received more than
$100,000* in technology at a celebration in Washington, D.C.
In early March, Samsung announced the five grand prize winners in its nationwide Solve for Tomorrow
contest, a competition to raise enthusiasm for science, technology, engineering, and math education
among U.S. public school students. All five winners were honored in a special Washington, D.C.
ceremony on April 17.
The five grand prize winners were chosen from 15 finalists. The five grand prize winners are:
Franklin High School, Los Angeles, CA
http://tinyb.it/1D52C1EBC8AD
Leewood K-8 Center, Miami, FL
http://tinyb.it/5052C1ED3E14
Forestview Middle School, Baxter, MN
http://tinyb.it/5852C306FBA
Arrowhead Park Early College, Las Cruces, NM
http://tinyb.it/152C1F6680E
MS 88/Peter Rouget Middle School, Brooklyn, NY
http://tinyb.it/3D52C1F98CBA
Franklin High School won the Community Choice Award with nearly 80,000 public online votes, MS 88/
Peter Rouget Middle School won the Samsung Employees Choice Award, and the other three winners
were chosen by a panel of judges. Each of the five grand prize winning schools will receive more
than $100,000* in technology ranging from products such as smart boards and LED TVs to printers,
laptops, and software. The 10 remaining finalists will receive $40,000* in technology from Samsung,
the Adobe Foundation, and DIRECTV.
“The excitement this contest creates is wonderful,” said David Steel, Executive Vice President
of Corporate Strategy for Samsung Electronics North America. “The public voting portion of the
contest received a strong response from the online community. That kind of support is fantastic.
Congratulations to all the winning schools as well as the other 10 finalists. We hope that the
challenge of this contest, together with the technology for winning schools, will help spark students’
passion to pursue careers that help improve the world through STEM (Science, Technology,
Engineering, and Math).”
As part of their prize package, the five winning schools also have the option to host a community
e-waste recycling day through Samsung Recycling Direct, an e-waste program which has recycled
more than 250 million pounds of electronic waste in the United States since the 2008.
The Solve for Tomorrow contest is part of Samsung Hope for Children, the company’s philanthropic
initiative focused on helping children lead healthier, smarter, and more sustainable lives.
1 Five Grand Prize Winners Awarded in Samsung’s $1 Million Solve for Tomorrow Contest
Five Grand Prize Winners Awarded in
Samsung’s $1 Million Solve for Tomorrow
National Education Contest
continued
For the first time, Samsung’s CSD Department participated in the program by providing a special
service program. The prize package for the 15 finalists includes a dedicated school support contact,
on-site product training and maintenance service, online training, and an extended warranty plan.
The 15 finalist videos can be seen at www.samsung.com/solvefortomorrow.
* Estimated Retail Value
About Samsung Hope for Children
Samsung Hope for Children represents Samsung’s philanthropic commitment in the U.S. to help
improve children’s health, education and sustainability. Since 2002, Samsung Electronics America and
its retail and business partners have helped more than 400 schools, community-based foundations,
and charities throughout the U.S. raise awareness of and funding for their causes. For more
information, please visit: www.samsung.com/hope.
This article was sourced from Theresa Cha, CBD Marketing Communication.
2 Five Grand Prize Winners Awarded in Samsung’s $1 Million Solve for Tomorrow Contest
Multiple Parts Usage: An Overview
By Scott Whitman, Senior Manager, CE Product Support
I wanted to take a few minutes to discuss multiple parts usage and the two most common repair
problems. For clarity, this will pertain mainly to TV models, but could easily be adapted to all product
groups.
With component level repairs, there are many circumstances where the failure of one part can
damage surrounding, supporting parts. This is especially true in power supplies that use switch mode
(or variable frequency) controls to regulate the supply voltages. However; when you move to board
level repairs, the situation changes since each board is designed to stand alone. It is very rare for
one major board to cause another board to fail. It is so rare, in fact, that if it were to happen on a
Samsung TV, we would send out a service bulletin describing the failure and specifying the fix.
An exception to this rule is failures caused by external sources, such as a power surge or lightning.
These are obviously not covered under warranty anyway, but could result in multiple board failures
With the tighter guidelines for single board repair currently in place, replacing multiple boards is not
a reasonable option. To troubleshoot repair issues, you need to combine training, knowledge, and all
available sources of information to get to the right answer.
Intermittent Failures:
Intermittent failures are often the hardest to troubleshoot, let alone narrow to a single board. There
are, however, various ways to improve troubleshooting success:
•• Get Hands-on Training.
•• Use GSPN for service tips and Service Bulletins.
•• Call the Samsung Technical phone support team.
•• Capture emergency log files (to be sent to technical support for analysis).
•• Employ logical divide and conquer troubleshooting using training manual block diagrams.
•• Use the Service App (which communicates directly with the factory [for TVs]).
•• Last, don’t “guess”. If you don’t see the issue, can’t verify the symptom exits, don’t replace parts.
No Video:
This symptom requires further testing on-site or in front of the TV. But, as with intermittent
failures, guessing is not and should not be an option. We expect that you will need to take more
than one board on-site due to FTF (First Time Fix) demands. However, once you are in front of the
TV, troubleshooting to board level failure should follow a logical order. All current Samsung TV’s
have methods to isolate the power supply control, main board, and panel. Most have test patterns
that you can access - even if there is no video on the screen - and use to isolate the defect to the
main board or the panel. You can access all these test patterns without any test equipment. Also,
troubleshooting information is available via:
•• GSPN
•• Hands-on training at one of our Regional Training Centers. (Contact the Samsung Training
Department.)
3 Multiple Parts Usage: An Overview
Multiple Parts Usage: An Overview
continued
•• Plus One
•• Samsung Technical phone support
Summary:
There is, as you can see, very little reason or excuse for technicians to use multiple boards during
a normal repair. For any repair, the best tool any technician can take with them is knowledge.
Education is the one major factor that will improve any skill set. Samsung has two dedicated RTCs
(Regional Training Centers) to support the ASC network, plus a full time training staff creating content
and available to travel to and train on location when requested. The small amount of time you
expend on training will be returned many times in productivity. The ROI makes sense. Do it!
Also, when on site, don’t hesitate to use the Samsung Technical phone support line. The Samsung
employees manning the phone support line have over a hundred years of combined, seasoned
experience. Put their knowledge and experience to work for you.
To conclude, using any part that is not needed for a repair just doesn’t make sense, dollar-wise or
logic-wise. Currently, our department is monitoring all warranty invoices for multiple parts, as you
are well aware. In the near future, those who do not improve will have further guidance requirements
placed on them.
Let us help you to improve today.
4 Multiple Parts Usage: An Overview
Samsung Field Service Announces 2013
KPI Definitions and Measurements
By Stanley Sherrard, Senior Manager, Field Service
To ensure we continue to provide world class service to all customers, Samsung Field Service has
determined the Key Performance Indicators (KPI) which we will focus on this year. Definitions of the
KPIs plus calculations and examples are below:
1) Quality of Service (QOS)
Definition:
Calculation:
Scale (Score):
The results of our customer satisfaction survey conducted upon the
implementation of an In Warranty claim. Specifically, the response to the
question: How would you rate your overall service experience?
Average Score from the survey using a 7 point system (1 Best – 7 Worst)
1 (100), 2 (83.3), 3 (66.7), 4 (50), 5 (33.3), 6 (16.7), 7 (0)
2) Customer Turn Around Time In Home (CTAT IH)
Definition:
Calculation:
Examples:
Repair turn around time for an In Warranty In Home repair, from the
customer’s first request to the repair completion.
The number of days from the service ticket creation date to repair completion
date.
If a cancelled ticket exists within the previous 30 days of the service ticket
creation date, the CTAT starts with the creation date of the original cancelled
service ticket.
1. Ticket created March 1st, repair completed March 5th: 4 Day CTAT
2. Ticket created March 5th, ticket cancelled March 9th because servicer was
unable to contact the Customer. New ticket created March 12th, repair
completed March 15th: March 5th to March 15th = 10 day CTAT.
3. Ticket created March 10th, ticket cancelled March 15th because part is
not available. Part becomes available on March 25th, new ticket created
on March 25th, repair complete date March 30th: March 10th to March
30th = 20 Day CTAT.
3) Customer Turn Around Time Carry In (CTAT CI)
Definition:
Calculation:
Example:
Repair turn around time for a Carry In repair, from the date the customer
drops off the product to the repair completion date.
Number of days from product drop off to repair complete. If a cancelled
ticket exists within the previous 30 days of the service ticket creation date,
the CTAT starts with the creation date of the original cancelled service ticket.
Ticket created March 1st, customer drops off unit March 5th, repair
completed March 7th: 2 Day CTAT.
5 Samsung Field Service Announces 2013 KPI Definitions and Measurements
Samsung Field Service Announces 2013 KPI
Definitions and Measurements
continued
4) Long Term Pending (LTP)
Definition:
Examples:
Percentage of Long Pending tickets among total pending tickets (In and Out
of Warranty counted).
(Classification of Long Pending ticket: Carry In - over 3 days; In Home - over
7 days)
4 day old Carry In ticket (from unit received date*) is an LTP ticket.
8 day old In Home ticket (from ticket creation) is an LTP ticket.
Calculation:
*LTP is currently calculated from ticket creation date. To be changed to unit
received date soon.
Number of Long Term Pending tickets X 100
Total Repair Pending + Complete**
** The complete date is the day the ticket is updated in GSPN. If you complete Monday’s completed
tickets in GSPN on Tuesday, the tickets count as completed on Tuesday since Tuesday is the update
date in GSPN.
An example of a Monthly LTP calculation: Item
LTP Tickets
Total Pending Tickets
Completed Tickets
Pending + Completed
LTP %
Day 1
2
15
5
20
10%
Day 2
3
14
5
19
15.8%
Day 3
2
13
6
19
10.5%
Month LTP
7
42
16
58
12.1%
5) Repeated Repair Ratio (REDO)
Definition:
Percentage of items which were serviced 2 times or more among all service
orders within 90 days.
Number of Repeated repairs within 90 days X 100
Calculation:
# of Service Orders
2013 change: REDO is now based on Ticket creation, not on warranty claim submission as in
the past.
Example:
Total Number of Repeated repairs within 90 days: 2
Total # of Service Orders = 80
REDO for that period = 2.5%
6 Samsung Field Service Announces 2013 KPI Definitions and Measurements
Samsung Field Service Announces 2013 KPI
Definitions and Measurements
continued
Please note that if you use one of the cancel reasons below, the ticket will count towards a REDO:
•• Cancelled by ASC – Product Replaced by dealer.
•• Cancelled by ASC – No Trouble Found and Unit Operating Properly.
Important: You should not complete a ticket until the actual repair takes place as multiple completed
tickets count as REDO.
We hope that these clear guidelines help you understand our KPIs and assist you in achieving your
2013 targets.
7 Samsung Field Service Announces 2013 KPI Definitions and Measurements
2013 TV Training Now Online on Plus 1!
Samsung is pleased to announce that the 2013 TV training course is now online. Keep your skills up
to date. Learn to repair Samsung’s latest models. Take the course and get certified now!
Click here to access Plus 1: https://my.plus1solutions.net/clientPortals/samsung/
For 2013, we’ve consolidated the online TV training into one course/one test.
2013 Samsung TV Certification Course (Video - Released 3.31.2013) - This training covers 2013 TV
product and repair in detail. Take this course to learn all you need to know to repair Samsung 2013
TVs. Technicians must also take and pass the 2013 Samsung TV Certification Exam, either in a live
class or on Plus 1, by 7/31/13 to obtain Panel Certification for the year.
We encourage you to obtain certification as soon as you can so you’ll have the skills you need to
repair 2013 TVs and provide exceptional service to our mutual customers.
Don’t wait. Update your skills. Start the TV training course today!
The Samsung Training Department
8 2013 TV Training Now Online on Plus 1
2013 HA Training Now Online on Plus 1!
Samsung is pleased to announce that the 2013 HA training courses are now online. Keep your skills
up to date. Take the courses and get certified now!
New Courses
2013 Samsung Refrigerator Certification Training
2013 Samsung Laundry Certification Training
2013 Samsung Dishwasher Certification Training
2013 Samsung Range Certification Training
2013 Samsung Microwave Certification Training
New Tests for Certification
2013 Samsung Refrigerator Certification Test
2013 Samsung Laundry Certification Test
2013 Samsung Dishwasher Certification Test
2013 Samsung Range Certification Test
2013 Samsung Microwave Certification Test
Click here to access Plus 1: https://my.plus1solutions.net/clientPortals/samsung/
Take these courses to learn all you need to know to repair Samsung HA products. Technicians must
take and pass the 2013 Samsung HA Certification Exams, either in a live class or on Plus 1.
We encourage you to obtain certification as soon as you can to get the skills you need to repair
Samsung HA products and provide exceptional service to our mutual customers.
Don’t wait. Update your skills. Start an HA training course today!
The Samsung Training Department
9 2013 HA Training Now Online on Plus 1
2013 Samsung RTC TV Training
By Jim Foster, Manager, Training
Samsung TV Training 2013
Being held at one of our Regional Training Centers and at select locations!
For 2013, by popular demand, Samsung continues
to accommodate your demanding schedule with one
day update training. To be eligible to attend the one
day training session, you must have attended and
successfully completed 2012 TV product training in
one of our training centers, or at a live, on-site training
session.
Samsung will still hold 3 day Basic classes quarterly.
These classes are intended for new techs who have never
attended a Samsung training or for techs who need extra help to improve their skills.
Attend in-depth, hands-on 1 day Update or 3 day Basic training at one of our RTCs in Little Ferry, NJ
or Bensenville, IL! In addition, we will be holding limited on-site trainings at various locations around
the country. You can reserve your seat in training by emailing us at training@sea.samsung.com
You can always obtain the most up to date training list by sending an email to training@sea.samsung.
com
Additionally, TV training is available on-demand 24/7 at https://my.plus1solutions.net/clientPortals/
samsung/
Training Schedule:
Date
City
Comments
May 10, 2013
Fort Lauderdale
FE/ASC 1 day Update Training (Class Full)
May 21, 2013
Bensenville, IL
FE/ASC 1 day Update Training (Session 1)
May 22, 2013
Bensenville, IL
FE/ASC 1 day Update Training (Session 2)
May 23, 2013
Bensenville, IL
FE/ASC 1 day Update Training (Session 3)
May 24, 2013
Bensenville, IL
FE/ASC 1 day Update Training (Session 4)
June 4, 2013
Little Ferry, NJ
FE/ASC 1 day Update Training (Session 1)
June 5, 2013
Little Ferry, NJ
FE/ASC 1 day Update Training (Session 2)
10 2013 Samsung RTC TV Training
2013 Samsung RTC TV Training
continued
Date
City
Comments
June 6, 2013
Little Ferry, NJ
FE/ASC 1 day Update Training (Session 3)
June 7, 2013
Little Ferry, NJ
FE/ASC 1 day Update Training (Session 4)
June 6, 2013
Dover, DE
MAC Convention
June 7, 2013
Dover, DE
MAC Convention
June 11 – June 13,
2013
Bensenville, IL
FE/ASC 3 day Basic Training
June 25 – June 27,
2013
Little Ferry, NJ
FE/ASC 3 day Basic Training
11 2013 Samsung RTC TV Training
2013 Samsung RTC Home Appliance
Training
By Jim Foster, Manager, Training
Samsung HA Training 2013
For 2013, per popular demand, Samsung continues to accommodate your demanding schedule
with two day update training. To be eligible to attend the two day training session, techs must have
attended and successfully completed 2012 product training in one of our training centers, or at a live,
on-site training session.
Samsung will still hold 4 day Basic classes quarterly. These classes are intended for new techs who
have never attended a Samsung training or for techs who need extra help to improve their skills.
Attend in-depth, hands-on 2 day Update or 4 day Basic training at one of our RTCs!
You can reserve your seat in training by emailing training@sea.samsung.com
Additionally, Home Appliance training is available on-demand 24/7 at https://my.plus1solutions.net/
clientPortals/samsung/
Training Schedule:
Date
City
May 21 – May 22, 2013
Little Ferry, NJ
May 23 - 24, 2013
Little Ferry, NJ
May 28 – May 29, 2013
Bensenville, IL
May 30 - 31, 2013
Bensenville, IL
June 7, 2013
Dover, DE
June 17 – June 18, 2013
Bensenville, IL
June 19 – June 20, 2013
Bensenville, IL
June 18 – June 19, 2013
Little Ferry, NJ
June 20 – June 21, 2013
Little Ferry, NJ
12 2013 Samsung RTC Home Appliance Training
Comments
ME/ASC 2013 products 2 day Update Training
(Session 1)
ME/ASC 2013 products 2 day Update Training
(Session 2)
ME/ASC 2013 products 2 day Update Training
(Session 1)
ME/ASC 2013 products 2 day Update Training
(Session 2)
MAC Convention
ME/ASC 2013 products 2 day Update Training
(Session 1)
ME/ASC 2013 products 2 day Update Training
(Session 2)
ME/ASC 2013 products 2 day Update Training
(Session 1)
ME/ASC 2013 products 2 day Update Training
(Session 2)
Stopping REDO Stopping REDO
Stopping REDO
Stopping REDO: Random Lockups in
UN**ES7500/UN**ES8000 LED TVs
By Scott Whitman, Senior Manager, CE Product Support
At the top of the list for May REDO is the same issue as last month: The random lockup of
UN**ES7500 through UN**ES8000 LED TVs along with a frozen image resulting in a power cycle
(the TV turns off and then back on). The symptom can occur anytime after the SMARTV boot up logo
disappears from the screen.
A service bulletin has been released to cover this issue, but let’s go over it again here due to the
ongoing misdiagnoses that are occurring in the field.
The primary parts that you need to take on-site are the SMPS and the cable between the power
supply and main board (LEAD CONNECTOR-POWER CABLE). The second possibility is the LVDS cable
and T-con, although this is more likely to occur only on early production TV’s.
Once on-site, and before you replace any parts, remove the cable at the SMPS and inspect it for any
discoloration. The discoloration will appear as a slight, brownish color centered around the 5VDC pins
on either the connector or plug. If this discoloration is visible, replace both the cable and the SMPS.
Discoloration on pins 17 and 19.
If you have any doubts, contact Technical Support for assistance in tracing the issue down to board
level.
13 Stopping REDO
Stopping REDO Stopping REDO
Stopping REDO: How to Identify DMD
Board Failures
By Jorge Tavora, CE and HA Tech Support Manager
Here’s an oldie but a goodie. Some techs out there are still having difficulty determining when the
DMD board is bad. Here are a few examples of what the picture looks like when the DMD board is
malfunctioning.
40 Vertical lines 16 pixels wide:
Horizontal bar or no Raster:
→ Replace the DMD Board.
→ Replace the DMD Board.
Dotted Vertical lines:
Beehive mosaic patterns all over the screen:
The H sync signals are not transferred to
DDP3021.
→ Replace the DMD Board.
→ Replace the DMD Board.
14 Stopping REDO
Stopping REDO Stopping REDO
Stopping REDO: How to Identify DMD Board
Failures
continued
To identify a DBD board failure, follow these steps:
1. On the remote control, press Power off → Mute + 1 + 8 + 2 → Power on to access the Service
Mode, and then access DDP3021.
2. Access Test Pattern.
3. If you press the right arrow key "▶", you can see the various Test Patterns.
If the patterns are displayed correctly, the problem is NOT caused by a DMD Board failure.
I hope this helps you determine when the DMD board is faulty. If you are not sure, take a picture
of the screen and either submit the PENDING ticket to “Tech Support Needed” or email it to
technicalsupport@sea.samsung.com for review. 15 Stopping REDO
CE Tech Tips
Quick Tip: Mini Components
By Michael Vigliotti, Assistant Manager, Product Support
Samsung is producing many more Mini Component models this year than in the past. Consequently,
we would like to share as much information as we can about the product since it will be new
technology for most of you. Our Mini Component line up includes two book-shelf sized models
that are designed for home use and two high-end models with large speakers that can be used as
professional DJ equipment or at large parties. All the units give you the ability to play CDs, stream
Bluetooth, and even sing and record Karaoke to your favorite songs.
• Book shelf models: MX-F630 and MX-F830
• High End models: MX-FS8000 and MX-FS9000 (pictured below)
We recently improved the firmware for the MX-F6** models. The improvements fixed an issue that
caused some speakers to have a popping sound and fixed an issue with Full CD Recording. To install
these improvements, please update the firmware to 1006.0 or higher.
How to update firmware:
1. Download the latest firmware from GSPN.
2. Save the firmware to the ROOT drive on any USB stick.
3. Insert the USB stick into the Mini Component unit.
4. Change the function on the MX-F6** to USB.
5. The firmware will automatically update and the unit may power off automatically.
16 CE Tech Tips
UN55F8000 Power-Up Sequence
By Juan Morales, Regional Technical Trainer
The UN55F8000 powers-up in the following sequence:
•• 5.3VDC on the A5V pin when the AC cord is connected.
•• The Micro on the Main PCB actively looks for the user to
press Power.
•• When Power is pressed, the Micro sends a “High” voltage (03.5VDC transition) to the SMPS via the PWR_ON/OFF pin, to
activate the rest of voltages.
•• Note: The SMPS may be “forced on” by simply disconnecting
the wire harness between the SMPS and Main PCB .
•• Upon the 0-3.5VDC transition on the PWR_ON/OFF pin, the
following voltages are activated on CNM803.
-- Vamp ≈ 18VDC
-- B13V ≈ 13VDC
-- B5V ≈ 5VDC
•• Approximately two seconds later, 5VDC is applied to the
BLU_ON/OFF pin.
•• Once the BLU_ON/OFF pin is activated, the LED arrays will
turn on .
•• CNL80A and CNL802B supply high voltage to the LED
arrays.
•• The “positive” pins will carry a steady voltage of 35VDC.
•• The “negative” pins will carry a voltage which will vary
between 1 and 10VDC depending on how bright the section
of the screen needs to be:
-- 1Vdc = Brighter screen
-- 10Vdc = Darker screen
17 CE Tech Tips
UN55F8000 Power-Up Sequence
continued
18 CE Tech Tips
UNxxF8000 Local Dimming Test
By Juan Morales, Regional Technical Trainer
The F8000 Series LED TVs let you verify that all LED arrays are operating properly by running a built
in test pattern called Local Dimming Test.
•• This test will light up the 16 LED arrays individually, starting on the right bottom corner as shown
in the graphic below.
•• You can access the test pattern using a standard remote control by pressing MUTE+4+1+9+EXIT.
•• When you run the test pattern, if one of the sections appears to be dim or does not light, verify
the voltages coming from the power supply are correct BEFORE replacing the panel.
•• To verify correct SMPS operation:
-- Disconnect the SMPS from the Main PCB to force the backlights to come on.
-- Verify that ALL the pins on the harnesses going to the panel labeled with a “negative” sign
(L3-, R5-, L8- etc…) are close to 0Vdc.
-- If any of those voltages are high, suspect a defective SMPS.
-- In some cases, it may be necessary to unload the SPMS by disconnecting the harnesses going
to the panel.
19 CE Tech Tips
UNxxF8000 Local Dimming Test
continued
-- This condition should also make ALL the pins on the harnesses going to the panel labeled with
a “negative” sign (L3-, R5-, L8- etc…) close to 0Vdc.
-- Once again, if any of those voltages are high, suspect a defective SMPS.
20 CE Tech Tips
2013 Bluetooth Module Troubleshooting
By Chuck Russo, Assistant Manager, Training
New additions to the Contact Samsung Menu and Factory Service Mode screens have made
troubleshooting the 2013 Bluetooth modules more direct and easier.
To troubleshoot the 2013 Bluetooth module, follow these steps:
1. Check Bluetooth Address on the TV’s “Contact Samsung” support menu.
2. Check the Bluetooth F/W Version on the Factory Mode screen.
3. If errors exist in either, then check the BT Module Connector Voltages in both the Standby and TV
Power-On conditions:
Pins
1
Standby 3.3VDC
Power
3.3VDC
On
2
3
4
5
6
7
8
9
10
0
3.3VDC 5.3VDC
0
0
0
0
0
0
3.3VDC
3.3VDC 5.3VDC
1.0
2.1
0
.02
0
0
BT Sig BT Sig
Sync
Pulse
21 CE Tech Tips
2013 Bluetooth Module Troubleshooting
continued
The Bluetooth Sig and Sync Pulse voltages in the table on the previous page are their effective DC
Readings. If a scope isn’t available, use a standard Multi-Meter for measurements.
•• If the DC voltages are missing, check the cable and Main Board feed.
•• If the voltages are OK, but the BT Sig. pins (DC Ref.) voltages are missing, the BT Module is likely
defective.
22 CE Tech Tips
CE GSPN Updates
By Jeff Brutman, Senior Staff, Publications
We encourage you to use our GSPN site to find the latest service bulletins to aid you with your repairs:
http://gspn3.samsungcsportal.com/
CE Service Bulletins uploaded to GSPN in April, 2013:
Bulletin Number
Subject
Subject: Power Cycling / Reset
Symptoms:
ASC20130429001
•• The TV may display vertical lines or a frozen
image on the screen and then power OFF and
ON by itself.
•• The WD Count in Service Menu>Control>Sub
Option is higher than 0.
Applicable Models
UN46ES7500,
UN55ES7500,
UN60ES7500,
UN46ES7550,
UN55ES7550,
UN60ES7550,
UN46ES8000,
UN55ES8000,
UN60ES8000
To access service bulletins on GSPN, first visit http://gspn3.samsungcsportal.com/. Login using your
User ID and Password. Click on “Knowledge” at the top, then “Product Info” in the left column. The
Product Information menu will appear. Click on “Service Bulletin (Local)” to bring up the Service
Bulletins (Local) screen. To search for a bulletin, enter the bulletin number in the Subject field on
the left side of the screen, and then click the Search button on the far right. If for some reason the
bulletin does not appear, you can still search for it using the “Category” drop-down menus, the
Subject field, or the Model field. You can also try using the Search field at the top of the screen.
23 CE Tech Tips
HA Tech Tips
Washers: The Pure Cycle Function
By Kyeong Tae Lee, Assistant Manager, HA Product Support
Models: Pure Cycle Washers only
Subject: The Key Benefits of using Pure Cycle™
•• Eliminates 99.5% of odor-causing residue in the wash drum.
•• No chemicals or additives are needed.
•• Never needs replacement.
How it works:
•• Pure Cycle™ uses hot water (158° F) and a long spin cycle to create an abrasive effect on the
wash drum, eliminating residue and odor.
To use the Pure Cycle™ function, perform the following steps:
•• Press the Pure Cycle™ Button.
•• Press the Start Button.
•• No other actions are needed!
Pictured above is the display from the WF220. Display layout varies from model to model.
How often should Pure Cycle™ be used?
•• Run Pure Cycle approximately 1x per month (or after about every 40 loads).
•• An indicator code lets you know when to run the cycle.
•• The cycle lasts between 50~120 minutes.
Important: NEVER place clothes and detergent in the washer when you are running a Pure Cycle.
24 HA Tech Tips
The New Style Refrigerator Inverter
Board
By Nicholas Webert, Regional Technical Trainer
Samsung’s new 2013 refrigerators have a redesigned inverter board. Here are some of the important
changes you need to be aware of:
•• The new inverter board is not compatible with the old style inverter board.
•• Troubleshooting AC in and the compressor control pin out has not changed from the old style
board, but the new inverter board supplies +13V and +5V input to directly to the main board. So,
if the Fridge is dead, check for low voltages coming from the inverter.
New Style Inverter Board
New style additions
1
2
3
4
5
6
7
CN103
13.2V
13.2V
5V
GND
GND
RPM
FB
YEL
PNK
PRP
BLU
RED
ORG
BLK
Same as old style
Also, notice one harness on the new inverter board (CN 103) splits off into 2 separate connectors
50REG1
on the main board. CN75 on the main board has the signal, ground, and feedback while the
connector carries the 13v and 5v supplies to power the main board. The board layout in the service
manual does not indicate what is supplied at the REG1 connector. This information is, however, shown
in the circuit diagram. In addition, note that the compressor overload is not in the same circuit
position as in the old style inverter board. In the new style board, it has been relocated from the BRN
portion of the harness to the LINE IN to the inverter board. If the overload opens, the compressor will
25 HA Tech Tips
The New Style Refrigerator Inverter Board
continued
still turn off. However, in the new configuration, the low voltage supplies to the main board will also be
interrupted. Consequently, if the overload opens, the refrigerator will not function at all.
By applying the new knowledge above and your experience from testing the old inverter board, you
should be prepared to tackle “no cooling” issues on new Samsung refrigerators. Don’t forget to pull
the Fast Track manual for the model you are working on to assist with all component testing including
the new and old inverter boards
26 HA Tech Tips
Frozen Water Tank, No Ice, No Water,
and a Water Leak
By Wes Sirois, Manager, HA Product Support
Models:
RF4267HARS,RF4267HABP,RF4267HAWP
Symptoms:
No water dispenses and/or no ice is produced and/or water leaks in the fresh food
section.
Water frozen here
Damaged plunger and water leaks
Background: The damper under water tank is not seated properly or is partially broken. See the
pictures below. This causes below-freezing temperatures at the water tank
Factory Solution: The old damper was replaced by a modified damper beginning with March, 2013
production.
Field Solution:
27 HA Tech Tips
The damper replacement part has been modified to improve fit and prevent
improper seating. To resolve this issue, replace the damper and water tank
assembly. Even if the water tank does not leak, the valve plunger may have
been damaged.
Frozen Water Tank, No Ice, No Water, and a
Water Leak
continued
Parts Needed
DA97-11340A ASSY CASE WATER FILTER TANK
DA97-08430A ASSY INS-DAMPER CONV
28 HA Tech Tips
New Anti-Tip Bracket Design for
Samsung Ranges
By Jason Abrams, Assistant Manager, HA Product Support
Every range that Samsung produces ships with an anti-tip bracket that must be installed when the
range is installed. The previous version of the bracket, shown below, could only be attached to the
floor. Looks simple enough to install, but if the flooring was anything other than wood (ceramic or tile,
for example), it was difficult to secure the anti-tip bracket to the floor.
Old Anti-Tip Bracket
Part Number DG97-00120A
Due to the difficulty that installers had securing the older anti-tip bracket to floors made of materials
other than wood, the anti-tip bracket design was changed so that the bracket could be secured to
the wall or the floor. New screws were added to the bracket kit for wall installation. These screws
go through the center two holes on the bracket (circled in the illustration below). The new anti-tip
bracket comes with all the hardware required for both wall and floor installation and a template with
instructions. Follow the instructions on the template for correct installation.
New Anti-Tip Bracket
Part Number DG94-00870B
29 HA Tech Tips
HA GSPN Updates
By Jeff Brutman, Senior Staff, Publications
We encourage you to use our GSPN site to find the latest service bulletins to aid you with your repairs:
http://gspn3.samsungcsportal.com/
HA Service Bulletins uploaded to GSPN in April, 2013:
Bulletin Number
Subject
Applicable Models
Subject: SE errors and Control Panel lock on the
ME179KFETSR/AA Microwave/Convection oven.
Background:
The ME179KFETSR/AA Microwave oven has had
a number of Control Box assembly failures. The
failures are typically indicated by one or more of
the following symptoms:
ASC201304100001
1. SE Error. If a microwave displays an “SE” error,
this means there is a communications failure
between the Touch Panel Controller on the
ASSY PCB Main and the ASSY Touchpad itself.
ME179KFETSR/AA
2. The Control Panel locking and not allowing any
entry via the Touchpad. The Control Dial ASSY
will allow you to change selections, but you
cannot enter the selection using the Touchpad.
3. Some Microwave functions turning on
spontaneously, primarily the OTR lights or the
exhaust fan.
Subject: New anti-tip bracket for ranges
Background:
ASC20130416001
30 HA Tech Tips
The previous anti-tip bracket design could only
All Ranges
be attached to the floor. If the flooring was wood,
there was no issue, however, if the flooring was
ceramic or tile, it was difficult to secure the anti-tip
bracket.
HA GSPN Updates
continued
Bulletin Number
Subject
Subject: Frozen Water Tank, Water Leaking
Symptom: No water dispenses, no ice is produced,
water leak in the fresh food section.
ASC20130425001
Background: The damper under the water tank
is not seated properly or is partially broken. This
causes below-freezing temperatures at the water
tank.
Applicable Models
RF4267HABP,
RF4267HARS,
RF4267HAWP
To access service bulletins on GSPN, first visit http://gspn3.samsungcsportal.com/ . Login using your
User ID and Password. Click on “Knowledge” at the top, then “Product Info” in the left column. The
Product Information menu will appear. Click on “Service Bulletin (Local)” to bring up the Service
Bulletins (Local) screen. To search for a bulletin, enter the bulletin number in the Subject field on
the left side of the screen, and then click the Search button on the far right. If for some reason the
bulletin does not appear, you can still search for it using the “Category” drop-down menus, the
Subject field, or the Model field. You can also try using the Search field at the top of the screen.
31 HA Tech Tips