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PHILIPS MODEL CHASSIS 2003

TV - CROSS-REFS
Type: (PDF)
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174.5 KB
Page
29
Category
TV
CROSS-REFS
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Relevant TV forum topics:
Philips 21PT1654/58 ch: SL9.2E AA hiányos
Sziasztok! Eme tv állítólag egyszer csak nem ment. Bedugva készenlét van, ha be akarom kapcsolni villog valamicskét, néma csend és semmi, nagyon haloványan a hálózatból kihúzva látszott, h. kis nagyfesz volt. Hiányzik a 2415-ös elkó, 7010-es ic és a képcsőpanelról a 2341 és 2343-as kondik. Nem tudom így mehetett-e, de tuti nem, ugyanis mindegyik alkatrész lábai benne vannak, mintha kitépték volna őket. Rajzot még nem néztem, mik lehettek, sőt lehet csak késő este leszek már gépnél. Kérdés, hogy ezeket miért szedhették ki, van ennek az alaplapnak valami nagyon szemét típushibája? Köszi! Üdv: Pityesz
40PFL4707 Philips logo and shutsdown
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
Philips 32 PFL 3403/12
Szevasztok! Egy Service Manuált,de legalább a tápegység rajzát keresem a készülékhez.A sasszi LC 8.1 ELB.Egy kis egérke belesült.Az R 300 ,4.7R megégett,a T 300 vezetővé vált. Üdv.,ferenc.
Philips GR2.1 AA ERR NICAM felirat pirosan bal oldalon lent a képernyön!
ERR NICAM felirat van a képernyőn lent alul pirosan ,és csak az uhf sáv jön be ha elinditom a keresést ..uj epromot raktam bele üreset ha jól tudom az felirja magát ...jol tudom????? vagy esetleg szervízmenüben kell állitani ezek ügyében valamit?? Köszi! Üdv:Sparco
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