REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

How to use the site:
- If you landed here via any Search Engine, you will get what you searched for and you can search more using the search this blog feature provided by Google. You can visit more posts scrolling the left blog archive of all posts of the month/year,
or you can click on the main photo-page to start from the main page. Doing so it starts from the most recent post to the older post simple clicking on the Older Post button on the bottom of each page after reading , post after post.

You can even visit all posts, time to time, when reaching the bottom end of each page and click on the Older Post button.

- If you arrived here at the main page via bookmark you can visit all the site scrolling the left blog archive of all posts of the month/year pointing were you want , or more simple You can even visit all blog posts, from newer to older, clicking at the end of each bottom page on the Older Post button.
So you can see all the blog/site content surfing all pages in it.

- The search this blog feature provided by Google is a real search engine. If you're pointing particular things it will search IT for you; or you can place a brand name in the search query at your choice and visit all results page by page. It's useful since the content of the site is very large.

Note that if you don't find what you searched for, try it after a period of time; the site is a never ending job !

..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Wednesday, 5 February 2020

REPAIR / SERVICING TV PHILIPS 42PFL9732D

Technical description and composition of the PHILIPS 42PFL9732D TV, panel type and applicable modules. The composition of the modules.
PHILIPS
Model: 42PFL9732D / 10
Chassis / Version: Q528.1E LA
Panel: LC420WU5 (SL) (B1)
Inverter (backlight): 6632L-0471A PANEL-T708A // 6632L-0470A PANEL-T707A. 996510007721 and 996510007722
PWM Inverter: BD9897FS
MOSFET Inverter: K4075
Trans Inverter: BET-2544-F42L
Power Supply (PSU): 3104_328_48892 3104 328 48892 310432848892
PWM Power: MC34067P (16)
MainBoard: 3104.313.61943 - 3104.303.50823 SSB 3104 328 52182
IC MainBoard: PNX5050EH / M1, PNX8537E / 0F86,
Tuner: TD1716F / IHXP-3 3112 297 14851
Specifications 42PFL9732D
PHILIPS 42PFL9732D
General recommendations for repairing TV LCD
It is advisable to start repairing a PHILIPS TV with the Q528.1E LA chassis with a careful external inspection of both internal and external elements. It often happens that visible damage to elements or connections helps determine the direction of the troubleshooting. Swollen electrolytic or cermet capacitors, charred resistors, ring cracks in the soldered terminals of the elements - all this can significantly help the master to determine the causes and consequences of the malfunction of the TV.
Sometimes the PHILIPS 42PFL9732D TV simply does not turn on. No control lights on the front panel are lit or blinking, the TV does not respond to the remote control and does not make any sounds or any signs of life when turned on. The most likely cause of the malfunction is a failure of the common power module 3104 328 48892 HJ738.1 10A.B D737GB. If it is working properly, you need to check the processor batteries on the SSB (Main Board). It is advisable to start the troubleshooting of the power supply module by checking the state of the electrolytic capacitors of the rectifier filters and the mains fuse. Defective capacitors should be replaced. If the mains fuse is broken, it is necessary to check first of all the power semiconductor elements - rectifier diodes and transistors, which are often found in such a state of breakdown.
The reasons for the breakdown of the power switch in switching power supplies (IIPS) can be different, for example, a malfunction of semiconductor elements or electrolytic capacitors in the stabilization circuits of the primary circuit, as well as a failure in the operation of the PWM controller MC34067P (16) or broken resistors in its bundle.
Sometimes the PHILIPS 42PFL9732D TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the backlight converter, or of the lamps themselves, which can be checked by replacement. In such cases, it is necessary to verify the serviceability of all electrolytic capacitors of the filter according to the power supply of the inverter itself, including in the power supply unit (power supply unit). If in diagnosing a malfunction, it is necessary to disable the inverter protection, there is a risk of failure of the power elements of the inverter, and special care is required during work, and after their completion it is necessary to restore the protection circuits for further safe operation of the TV by the owner in normal mode.
On the motherboard SSB 3104 328 52182, in case of a malfunction, you should first check the performance of all the stabilizers or power converters of the microcircuits and, if necessary, update the software (software). In some cases, to repair the MB (SSB) board, it may be necessary to replace the chips - PNX5050EH / M1, PNX8537E / 0F86, tuner TD1716F / IHXP-3 with new or obviously working ones. In cases where BGA technologies are used, defects are usually localized by the heating method.
Attention to users! Self-repair of a PHILIPS 42PFL9732D TV without the appropriate qualifications and experience can lead to its complete non-repairability!


Service manual and schematic diagram 42PFL9732D/10 Chassis Q528.1E LA


 The appearance of MainBoard 3104.313.61943 is shown in the figure below:
3104.313.61943 - 3104.303.50823
3104.313.61943
3104.313.61943 can be used on TVs:
PHILIPS 32PFL7862D/10 (Panel T315XW02 V.F), PHILIPS 32PFL9632D/10 (Panel LC320WX5-SLB1), PHILIPS 37PFL9732D/10 (Panel LC370WU3 (SL)(E1)), PHILIPS 42PFL7862D/10 (Panel LC420WU5(SL)(B1) code 097), PHILIPS 42PFL9632D/10 (Panel LC420WU5(SL)(B1)), PHILIPS 42PFL9732D/10 (Panel LC420WU5 (SL)(B1)), PHILIPS 47PFL9732D/10 (Panel LC470WU2 (SL)(B1) code 101).
The appearance of the power supply
Main features of the PHILIPS 42PFL9732D device:
Installed matrix (LCD panel) LC420WU5 (SL) (B1).
To power the backlight, an inverter 6632L-0471A is used, it is controlled by the BD9897FS PWM controller. A transformer BET-2544-F42L is installed in the inverter converter. As power elements of the inverter, keys of the K4075 type are used.
The necessary supply voltages for all nodes of the PHILIPS 42PFL9732D TV are generated by the power module 3104_328_48892, or its analogs using MC34067P microcircuits (16).
MainBoard - the main board (motherboard) is a module 3104.313.61943, using chips PNX5050EH / M1, PNX8537E / 0F86, and others.
The tuner TD1716F / IHXP-3 3112 297 14851 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: LG.Philips LCD
Model: LC420WU5-SLB1
Type: a-Si TFT-LCD, Panel
Diagonal size: 42 inch
Resolution: 1920x1080, FHD
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 930.24x523.26 mm
Surface: Antiglare (Haze 13%), Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1000: 1
Display Colors: 1.06B (8-bit + Dithering)
Response Time: 5 (G to G); 8 (MPRT)
Frequency: 120Hz
Lamp Type: EEFL Embedded (Inverter)
Signal Interface: LVDS (4 ch, 10-bit), 92 pins
Voltage: 12.0V
Posted By: FRANK at 08:40
TAG: , , , ,