Power Supply Kit KIT PART NUMBER 4835 310 57575 ITEM DESCRIPTION PART NUMBER 1500 T4 fuse 2422 086 10869 3523 100 ohm fuse 2306 204 03101 6523 diode 4835 130 37048 6560 FS diode 9340 555 59127 7515 Opto Coupler 9322 140 14667 7520 control IC 9352 673 56112 7521 power FET 9322 160 72687 7522 transistor SMD 3198 010 42030 Installation Note 1715990605 Horizontal Kit KIT PART NUMBER 4835 310 57577 ITEM DESCRIPTION PART NUMBER 1500 T4 fuse 2422 086 10869 6460 FS diode 9340 559 50112 7460 H OUT BU4508DX 9340 550 92127 Installation Note 1715990607 Vertical Kit KIT PART NUMBER 4835 310 57582 ITEM DESCRIPTION PART NUMBER 2244 100n 63v 2222 370 76104 2252 1n 25v SMD under 3244 3198 016 31020 2253 1n 25v SMD under 3249 3198 016 31020 2474 2n2 50v SMD to pin 1 of IC7471 4835 122 87083 3474 2K2 3/5 watt 2312 915 12202 3479 2K7 SMD to pin 9 of IC7471 4822 117 12955 3488 4R7 fuse 4835 110 47023 6487 FS diode 4835 130 37094 6470 FS diode SMD 4835 130 37583 7471 TDA8359J Output IC 9352 701 64112 Installation Note 1715990611 Symptom: (one or a combination): Failure of Horizontal Output Transistor 7460 and/or Driver Transistor 7461 Will not start at turn on. Will start but picture is small Replacement 7460 may run at excessive temperature. Cause: Open (or partial open) capacitor 2455, a 47uF at 25 volt lytic. Resolution: Replace 2455 using part number 3198 025 34790 Applies To: 20DV6932/37R, 20DV693R01, 20DV693R02, 20MS334R/37, 20MS334R01, 20PT633R/37, 20PT633R/99, 20PT633R01, 20PT643F/35R, 20PT643R/17, 20PT643R/37, 20PT643R/99, 20PT643R01, 20PT643R17, 20PT653R/37, 20PT653R/99, 21PT6331/44R, 21PT633R85C, 21PT6431/44R, 21PT643R85C, 21PT643R99, 24PT633F/35R, 24PT633R/37, 24PT633R37, 24PT633R99, 25LT220L/17, 25LT421L/17, 25PT533S37C, 25PT533S99, 25PT633R85C, 25ST220L/17, 27DV693R37A, 27LT220L/17, 27LT621L/17, 27LT621L17C, 27MS3404/17, 27MS4504/17, 27PT541S37A, 27PT543F35A, 27PT543S37A, 27PT543S99, 27PT563S37A, 27PT633R37C, 27PT633R99, 27PT643F35A, 27PT643R/37C, 27PT643R/97A, 27PT643R37A, 27PT643R99, 27PT663R37A, 27PT663R37C, 27PT663R99, 27ST110P/35, 27ST220L/17, 27ST220L17, 27ST230P/35, 27ST240P/35, 27ST420L/17, 27ST421L/17, 28PW6532/85R, 29DV6931/85R, 29DV693R85A, 29DV693R85C, 29PT543S44A, 29PT543S85A, 29PT563S85A, 29PT633R85A, 29PT633R85C, 29PT643R85A, 29PT6631/44, 29PT663R85A, 29PT663R85C, 29PT663S85A, 30DV693R37A, 30PW633F35A, 30PW633R37A, 30PW633R37C, 32LT621L/17, 32PT541S37G, 32PT543S37A, 32PT543S37G, 32PT543S99, 32PT553S37A, 32PT553S37G, 32PT553S99, 32PT563R85G, 32PT563S37A, 32PT563S37G, 32PT633R37D, 32PT633R99, 32PT663R37A, 32PT663R99, 32PW633R85C, 32ST220P/17, 32ST230P/35, 36ST220P/35, 36ST230P/35, L01.1U AC, L01.1UAC, MS3252S431, MS3652S427 Symptom: A small number of this chassis which do not use E-W transistor 7400 may show a symptom of no horizontal deflection. There will be a single line from top to bottom of the CRT. Cause: Open capacitor 2462 near the horizontal output transistor 7460. Part of the capacitor may be missing. Resolution: Replace using ONLY 2022 333 00084. Also always resolder the leads of diode 6461 just to the rear of the chassis from 2462. MODELS INVOLVED USING L01.1U AC CHASSIS ARE: 25PT533S 27PT543F 27PT541S 27PT563S 27PT543S Applies To: 25PT533S37C, 25PT533S99, 27PT541S37A, 27PT543F35A, 27PT543S37A, 27PT543S99, 27PT563S37A, L01.1U AC MODELS INVOLVED USING ITV L01.1U AC CHASSIS ARE: 25LT220P/17 27ST220L/17 27ST230P/35 25ST220L/17 27LT220L/17 27ST420L/17 25LT421L/17 27ST110P/35 27ST421L/17 Symptom: FOR IMPROVED RELIABILITY When servicing the L01.1U AC chassis that uses 25 inch and 27 inch standard curved face CRT's always examine capacitor 2462 located near the Base lead of the Horizontal Output transistor 7460. Resolution: If 2462 is a small blue or orange part replace it with 2022 333 00084. Use no other part here. Always resolder the leads of capacitor 2462 and the leads of diode 6461 just to the rear of the chassis from 2462. The following models using the L01.1U AC chassis are involved: 25PT533S 27PT543F 27PT541S 27PT563S 27PT543S Applies To: 25PT533S37C, 25PT533S99, 27PT541S37A, 27PT543F35A, 27PT543S37A, 27PT543S99, 27PT563S37A, L01.1U AC Bob Waterman, CET® #RI-28 Master Technician License #9109 Service Manager / Parts Manager Gemini Computer, TV, & Security Alarms (508)695-7302 (508)695-7769 FAX geminitv@xxxxxxxxxxx ----- Original Message ----- From: "John Conti" <contitv@xxxxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Friday, December 23, 2005 10:23 AM Subject: [TechAssist] Philips Model 27PT543S37A Chassis L01.1U Is there A Horz. kit for this Model. I have one for the 27pt5441/37 and its p/n 4835 310 57673 but thats for the L04.1U. Can I use this kit for the L01.1U. Set Has Shorted HOT and 7461 looks very over heated. Thanks John Conti'sTV Texas _________________________________________________________________ Don't just search. Find. Check out the new MSN Search! http://search.msn.click-url.com/go/onm00200636ave/direct/01/ ---------------------------------------------------------------------------- - This Email List is accessible to the general public through search engines. Remove: http://www.tech-assist.org/remove.htm Set Vacation mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/ ----------------------------------------------------------------------------- This Email List is accessible to the general public through search engines. Remove: http://www.tech-assist.org/remove.htm Set Vacation mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation Lost Password: http://www.tech-assist.org and select "Login Problems?". 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