13)philips 수리내역

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QUESTION NO. P70803-9:  Philips 107E20/00Z monitor, I need type of power mosfet in power supply section part number 7101. It is some ST microelectronics type but cannot read because burnt badly.

The original part is SSP7N60A. A substitute part is IRFB9N60A. The Philips part number is 9322 135 00687.

QUESTION NO. P61203-2:  Philips 107e monitor, power supply contains smps  ic which is TEA1504.  I need a replacement from other manufacturers.

That is a specialized chip made by Philips so forget about other makers.

QUESTION NO. P33103-1:  I need to open the service menues of the Philips Brillianc 109p and a Nokia 446 pro monitors.  

40 sites containing tv, vcr & computer monitor EEPROM service mode access: http://the-hideout.net/techtalk/phpbb2/viewtopic.php?t=47

QUESTION NO. P42203-1:  Philips 15A12F monitor Chassis CM1200.  Need value of burnt R3426.

R3426 is 4.7 ohms, 1/2 Watt.

QUESTION NO. P82202-8:  Philips monitor CM0700 A3KM043 in Apple 14 AV has a small slot image in center of screen 6 inches wide 1/4 inch high.  Flyback OK, vert IC OK, HOT OK, changed caps, 2 x 1 ohm resistors & 1 x 4.7k half watt. HOT running too hot and darlington transistor on same heat sink very hot.  Going into shutdown when signal applied. Have swapped good flyback no effect.

The cause was a totally open tube connections, replaced with new tube and unit works perfectly.  Items replaced were; 7916-IRF620 or equivalent,3915-4.7kohms half watt 3637-1ohm half watt, 3152-1ohm half watt, flyback is HR46126 (Diemen)and the tube to suspect is Philips M34EDC13X.

QUESTION NO. P51402-10:  Philips C2082DAS monitor.  I need the value of C839.

If this Philips is FCC# GZM1323, I show C839 as 470 pF/2KV.

QUESTION NO. P118-10:  Philips 107S monitor.  I need a readily available equivalent for a mtp6n60 n-channel enhanced power mos transistor.  600v (vdss) <1.2ohms (rds - on) and 6.8A (id).  I checked on the sgs-thomson site and it is supposedly obsolete.

There are many substitutes for MTP6N60. IRFBC40 or IRFBC40A (listed by Digikey and Mouser, among others), 2SK1117, and ECG/NTE 2379 are some of more available ones.

This transistor is available from Radionics ( www.radionics.ie ) Herbiton Rd Dublin Ireland or R.S. components in U.K. part no 441-013 for 2.87 euro + vat a p&p it is advised to use buz355 800V 6A 220W on a heatsink for testing a suspect circuit.  In a monitor replace any hi voltage caps 1kV and examine electrolytics for leaks.

QUESTION NO. P1015-2:  Philips 4CM4770 monitor intermittently out of sync.  In the deflection circuit found TDA4850 (and TDA4861), TDA2595, HEF4528BP and a 74HCT86N.

Hor. or Vert sync?  If hor, check components around the Hor Osc of TDA4850 and check components around Vert Osc if Vert sync problem.  If there is a pot for adjusting the Hor hold, then adjusting that might help since it might not be optimum.

QUESTION NO. P821-3:  Philips 17A, CM3800 monitor FCC A3KM053. Found same problem in archive but cannot find suggested resistor (R573) as locations have four-digit designators. Monitor powers on, degauss etc., syncs to PC OK, initial static crackle and HT present, normal low buzzing sound (quiet) - but no raster or video. Cathode glows as expected. Cannot determine if FBT is faulty or perhaps in some DPMS mode?

The archived answer looks like a typo, for my notes show the 1 ohm resistor near the yoke connector to be resistor 3570 (not 573).  A lot of these units do get FBT problems.

QUESTION NO. P112602-2:  Philips Brilliance 107 monitor, model 17A8808q, chassis CM8800, FCC A3KM060 no picture.  Replaced defective Component 7503 BU2527A and component 3518 1R, after a few hours, a day or a week the same components are again defective.  I replaced lin. coil 5508 but that is not the problem. I have three of these monitors with the same problem.

Check all the B+ line caps and any 1-2KV ceramics in the deflection circuit have found these electrolytics to lose capacity totally causing HOT to blow & sometimes other parts.

QUESTION NO. P217-4:  Philips C2082 (DAS / A, May 1993) monitor, after some seconds of selftest, it displays the text "Gen. failure" in its display.  I need the values of R849 and R869 burned beyond recognizition and why they are blown.

The resistors have the same value, 68 ohms 1/4 watts for both.

QUESTION NO. P127-2:  Philips 107B 17" SVGA (PB7402) monitor.   Almost completely dead.  Power LED goes on momentarily then fades.   Little (if any) initial voltages then all go to zero. No clicking or humming whatsoever.

Look for any smaller electrolytic caps in the SMPS that are rated at 100V or higher and replace them.  I found that if they are even on the outer edge of their rated tolerance, the power supply won't start-up.

QUESTION NO. P105-8:  Several Philips 4CM4270 monitors with the same problem.  Replaced a defective H.O.T (BU2525) and the +B supply reads 90 Volts instead of 145 Volts. H.O.T becomes hot, no picture.

These Philips chassis do not shut-down when the HOT shorts.   Instead, they drop the B+ voltage down. Running like this with a shorted HOT, will damage coils, locations like 5601, 5604, 5613, etc, so check those coils. Sometimes, some resistors also get damaged.  The usual cause of the HOT originally shorting, is bad solder on the horizontal driver transformer, so also check the transformers out.

QUESTION NO. P72-7:  Philips C2082DAS/II monitor whose line transistor THD4oo, serigraphied V815, on the main board, is in short circuit. I cannot find its characteristics or an equivalent.  I have checked the flyback capacitors, they look good.

ST Microelectronics has obsoleted the THD400. If this is the Philips unit made by Fimi (FCC# begins with GZM), it has been suggested to modify the chassis to accept a 2SC3998 for V815 replacement. In addition to the installing the 2SC3998, which will need a retainer clip, and mica insulator with heatsink grease, the modification also requires removing V841, C883, and C884, and installing a jumper wire in place of C884. Be advised that if the THD400 shorted along with other faulty components, the replacement may also blow, if those are not also fixed. Check out R807, all the HV rectifiers = all "BYV" types, & BY584 (this one has a Vforward > 6 Volts!), all the HV Polypropylene snubber caps, microfuses, and coils L807, L802, L803 (T803, & R910, if present). Other common failures are the focus assembly module (gives focus/brightness fluctuations), or the flyback itself (HV-Failure).

QUESTION NO. P518-7:  Philips 14A monitor, connected with computer. noe.  The led can turn from yellow to green, but no HV.  Second power FEt5P25.  There have about DC 180v voltage in "S","G' ,but no voltage in "D".

Although number for the FET is not complete, it is possible to tell that this FET is a P-channel type. With the same 180V voltage at both the gate (G) and the source (S), this P-FET will not turn on. So trace back from the gate input, and find out why the gate drive circuitry is not functioning.

QUESTION NO. P416-10:  Digital Philips FSR871CV.  At the start the display is good, after a minute or so, the display becomes lighter and lighter and the desktop vanish.

You may have a bad ground connection on the IHVT or it itself may be bad.

The screen/focus blocks are a problem in this model. There are a few different versions; which version depends on which exact CRT is installed. If replacing it, you need the entire number off the one in your unit. In the US, LJ Enterprises, 800-627-8755, and MI Technologies, 937-335-4560, have carried them. For Europe, try ICHE in the UK, Phone, 044 (0) 115 932 0152; email, tony@iche.com.

QUESTION NO. P930-8:  I have a Philips FSR871CV monitor (C2082-DA) where  I have located a blown IC. Need help to identify U4 on the Low level signals board. It is a Texas 8 pin IC but the rest is not readable. Any other ideas why this IC did blow?

In an Epson unit that is also a Philips/FIMI chassis, the U4 on the low-level signal daughterboard is a Texas Instruments TL072CP dual opamp.

QUESTION NO. P930-3:  I have a problem about monitor for vehicle inspection system manufactured from France (Philips) model muller bem.  The problem is vibration images.  What should I do first?

The first thing I check is the big electrolytic cap after the bridge rectifier at the primary end and then the electrolytic caps in the HT line at the secondary side.Check for liquid near the caps. Or touch their legs with the soldering iron and if you smell something really nasty, that큦 it.

QUESTION NO. P83-6:  I am working on a Philips C2082 Monitor that reports 'HIGH VOLTAGE Fail' on its LCD. I checked flyback and the high voltage and the -200V that it produces come on very briefly after power-up. Then the voltage collapses.    Could it be the beam limiter circuit doing its work (not properly)? How can I locate the faulty circuit (components)? Also which brand is the HOT (THD 400) used in it?

Check fuse 801 (solder type near flatcable to hv-box).  If it blows again, most likely the flyback is defected.