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PHILIPS MODEL 20PT138-58R MEMORY-ST24W04C PROC-P83C055BBP-173
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TV
EPROM
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PHILIPS MODEL 20PT13858R 20 PT 13858 MEMORYST 24 04 PROCP 83 055 BBP 173 20PT138 58R MEMORY ST24W04C PROC P83C055BBP
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Dear Expert
The details of my TV is as follows
1. Philips 40PFL4707/F7 Manufactured March 2012
2. SMPS Board BA21P6F01 01 1
3. SMPS board has a sticker that says A21P6MPW C 7219720
4. This is a 110v Mains Supply TV sold in USA
5. I imported this from USA into my country where we have 230V.
6. I have a simple winding transformer that converts 230v to 110v
The TV has been having this problem. Here are the steps
1. Mains power on
2. Front panel white led blinks 6 times
3. Philips logo display
4. TV shuts down immediately
5. Nothing happens. If i press power button on TV or remote nothing happens
6. Have to power off and then wait for few minutes to experience same repetition.
Last two days, tried several times, only once the TV started and after 10 minutes it did auto shutdown as there was no input signal connected.
Does this indicate issues with SMPS or main cpu board ? Even if its faulty, how did it start once ?
More testing done as follows
1. Removed all connectors. Cleaned all three pcb with liquid cleaner. Cleaned all connectors externally and internally ( holes) using painting brush. Allowed everything to dry.
2. Reconnected
3. Started. This time, went past the Philips logo. I could connect a macbook via HDMI and play youtube videos on the TV for ~1 hours.
4. Using remote, entered service mode and initialized ( factory reset) the TV
5. For 1 hours of proper run, measured voltages. LED+24v was showing properly at 24v, AL+3.3v was at proper 3.3v and the P-ON-H1 was properly at 3.3v
6. After about 1 hrs, the screen shut down. The LED+24v is showing at 6v, AL+3.3v at 3.3v and P-ON-H1 is a 0v. This indicates the main cpu board has turned off the P-ON-H1 signal.
7. Power off, wait for 2 min. Power on... same philips logo and TV shuts down. Problem repeats.
8. Firmware is Code TVNB010_00_PF_XX91_BA PIC code U10_CM08:_40A_C7W_R_02. Did a google search and found no references if this firmware needs any upgrade.
requesting experts next steps to root cause the issue. I suspect the main board is bad and the SMPS is good. What if I manually put a wire from AL+3.3v to P-ON-H1 ? will the TV be on or is it risky for the main cpu board ?
I am attaching the service manual for this TV
The details of my TV is as follows
1. Philips 40PFL4707/F7 Manufactured March 2012
2. SMPS Board BA21P6F01 01 1
3. SMPS board has a sticker that says A21P6MPW C 7219720
4. This is a 110v Mains Supply TV sold in USA
5. I imported this from USA into my country where we have 230V.
6. I have a simple winding transformer that converts 230v to 110v
The TV has been having this problem. Here are the steps
1. Mains power on
2. Front panel white led blinks 6 times
3. Philips logo display
4. TV shuts down immediately
5. Nothing happens. If i press power button on TV or remote nothing happens
6. Have to power off and then wait for few minutes to experience same repetition.
Last two days, tried several times, only once the TV started and after 10 minutes it did auto shutdown as there was no input signal connected.
Does this indicate issues with SMPS or main cpu board ? Even if its faulty, how did it start once ?
More testing done as follows
1. Removed all connectors. Cleaned all three pcb with liquid cleaner. Cleaned all connectors externally and internally ( holes) using painting brush. Allowed everything to dry.
2. Reconnected
3. Started. This time, went past the Philips logo. I could connect a macbook via HDMI and play youtube videos on the TV for ~1 hours.
4. Using remote, entered service mode and initialized ( factory reset) the TV
5. For 1 hours of proper run, measured voltages. LED+24v was showing properly at 24v, AL+3.3v was at proper 3.3v and the P-ON-H1 was properly at 3.3v
6. After about 1 hrs, the screen shut down. The LED+24v is showing at 6v, AL+3.3v at 3.3v and P-ON-H1 is a 0v. This indicates the main cpu board has turned off the P-ON-H1 signal.
7. Power off, wait for 2 min. Power on... same philips logo and TV shuts down. Problem repeats.
8. Firmware is Code TVNB010_00_PF_XX91_BA PIC code U10_CM08:_40A_C7W_R_02. Did a google search and found no references if this firmware needs any upgrade.
requesting experts next steps to root cause the issue. I suspect the main board is bad and the SMPS is good. What if I manually put a wire from AL+3.3v to P-ON-H1 ? will the TV be on or is it risky for the main cpu board ?
I am attaching the service manual for this TV
Kedves kollégák!
Ez a készülék néha lefagy és a távval sem mindig működik rendesen. Van benne egy 24C128 eeprom. Egy orosz oldalról beleírtam egy tartalmat és fejjel lefele jött be a kép.Ez nem is lenne olyan nagy probléma de sajnos az LVDS vonal meghajtása nem ugyan az. Sajnos fura szines képet ad.
Visszaírva a régi tartalmat a kép újra jó lett de bugos a szoftver. Kellene egy jó tartalom.
main: 715G6165-M01-000-005X
kijelző: TPT400LA-J6PE1
üdv.
Ez a készülék néha lefagy és a távval sem mindig működik rendesen. Van benne egy 24C128 eeprom. Egy orosz oldalról beleírtam egy tartalmat és fejjel lefele jött be a kép.Ez nem is lenne olyan nagy probléma de sajnos az LVDS vonal meghajtása nem ugyan az. Sajnos fura szines képet ad.
Visszaírva a régi tartalmat a kép újra jó lett de bugos a szoftver. Kellene egy jó tartalom.
main: 715G6165-M01-000-005X
kijelző: TPT400LA-J6PE1
üdv.
Jo napot a tanyazoknak!Fentemlitett keszulek(L01.1 E AA sasszi)bekapcsolas utan nehany masodpercel leall.Nem st.by-ba,128v megmarad de a 12v ag leesik kb.9,5v-ra,driver betap megszunik.Ujrainditas utan huzamosabb ideig mukodik,majd megint leall.Valakinek tapasztalata,tippje? Elore is koszonom a faradozasotokat.
Udv:Ferenc
Sziasztok!
Saját készülékem tegnap megbolondult vagy a páromnak sikerült valamit megnyomnia a távirányítón, nem tudom.
De tegnap tűnt fel nekem hogy nincs OSD menü kijelzés, de minden utasítást végrehajt, van kép is semmi más gond nincs vele.
Nem látszik, a képernyőn hogy mit csinálok, ez igaz pl.: a hangerőszabályzásra is, vagy a csatorna váltásra.
Azt szeretném tudni a tapasztalt kollégáktól hogy ez most hiba vagy valamilyen funkciója a készüléknek?
Előre is köszönöm a tanácsaitokat!
Üdv Istvan78
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