Zitat : Gast hat am 27 Aug 2002 13:13 geschrieben :

Zitat : Gast hat am 26 Aug 2002 16:19 geschrieben : Falls noch Bedarf an einem Schaltplan fuer den Medion Monitor MD 1772ie besteht: ich habe gerade die Originalschaltplaene (11 DIN-A-3 Blaetter) erhalten! Gruesse medi Hallo Medi, ich wäre dir sehr dankbar, wenn du uns von diesem Plan eine Kopie zuschicken könntest. Antwort bitte an:     greggel äht subdimension.com (automatisch editiert wegen spamgefahr)

Ich bin interessiert an Schaltplan MD 1772ie Bitte um Nachricht ob ich selbigen bekommen kann gegen unkosten. Grüße Eduard Sawicka Fax 07143/25581

1772XE:
R329--220kom
R330--100kom
C324--4700pF x 50V

Aber wenn diese wiederstende kaputt gehenn---FBT defekt!

igor.gm

zu Schaltplan fuer Medion 1772e:
Medion 1772 und Medion MD 1772ie haben meines Wissens nichts direkt miteinander zu tun!!!

zu Eduard Sawicka: haetten sie statt einer FAX-Nr. ev. auch eine E-Mailadresse, an die ich mich wenden koennte?

medi

Zitat : Gast hat am 26 Aug 2002 16:19 geschrieben :

Falls noch Bedarf an einem Schaltplan fuer den Medion Monitor MD 1772ie besteht: ich habe gerade die Originalschaltplaene (11 DIN-A-3 Blaetter) erhalten! Gruesse medi

=========================================================
Hallo Medi,

die Monitore scheinen nach der Resonanz im Forum ja zu sterben wie die Fliegen! Ich habe auch einen 1772e vom ALDI, der gerade kaputt gegangen ist. Wäre nett, wenn mit dem Schaltplan was zu machen wäre.... Vielleicht kannst du mich ja mal anmailen!     thomas.freudenberger äht t-online.de (automatisch editiert wegen spamgefahr)   

Vielen Dank!!!

QUESTION NO. P512-3: Acerview 76e monitor has a bad C327 (220pf 2 2kv), not only did R241 and R329 go but also R326 and R328 burnt up. I need the values of R326 and R328.
R326 = 3.9K, R328 = 4.7K, both 1/8 watt.
R320-56 K
c326-270pF x 500V

QUESTION NO. P511-7: Acer-7276e 17" monitor. R328, R32? (this resistor is connected at J174/R328 to GND, part of label on PCB is damaged by fire) and C326 are burned beyond recognition.
I do not have a chassis in front of me, but the common failure involves HOT Q302, FET Q301 = BSS89, R326 = 3.9K, R328 = 4.7K, R329 = 10K, R241 = 10K, C327 = 220 pF/3KV, and J013 = 3 Amp microfuse. So possibly your unknown resistor is R326 or R329. See if you can locate both those two resistors intact, or if one is your burnt one (missing).
QUESTION NO. P127-3: What type of transistor is Q301 in an Acer 7276e monitor? The monitor is not passing the Horiz drive signal past this transistor. I read 100 Ohms from base to emitter in both directions. Markings on the transistor are only J9 S S 89.
Q301 is BSS89, a small N-channel DMOS FET, made by Philips or Siemens, rated at 200 Volts, 0.3 Amp, 1 Watt, Rds[on] < 6 ohms. The pinout is S D G, despite Acer's misleading silkscreens, and it has an internal source-drain body diode. If this FET has died, you should also check the HOT = 2SC5048, C327 = 220 pF/2KV ceramic disk cap, J013 = 3 Amp picofuse, and resistors R241, R326, R328, R329.

QUESTION NO. P1022-1: AcerView 76E 7276e Monitor. I need a cross reference for a transistor location Q301 part number reads H8 S S 89.
Transistor Q301 is a BSS89 F.E.T. made by Siemens or Philips. The Philips device is available from Newark Electronics, among others. You should also check the following components Q382, J013 (picofuse), C327 (220pF @ 2KV, the original cause of the problem), R326, R241, R328, and R329.

QUESTION NO. P925-7: Acer View 7276e monitor. R241 was burned. I changed R241 = 10K ohms.C327 = 220 pF/2KV,Q301 = FET BSS89, R329 = 10K, and 3 Amp picofuse J013. Now the monitor seems to be work but it displays 2/3 of the screen vertically on the right and rest of 1/3 of the right side image displays on the left side.
First, check there is still continuity in the path going through R241, to pin #1 of the TDA4858 IC. If yes, then probably the TDA4858 itself needs replacing. Also check that ZD210 = 5.1 volt zener, is not leaky/shorted/missing; it is intended to protect pin #1 of that IC.

QUESTION NO. P918-2: Acer 1772e monitor. I need values for R241, C327 and R329.
In the US, this Acer chassis is the Acer 7276e. R241 & R329 are both 10K ohms, and C327 = 220 pF/2KV (a 3 KV replacement is better). It is also wise to check R326, R328, FET Q301 = BSS89, HOT Q302 = 2SC5048, ZD201 = 5.1V, IC201 = TDA4858, and 3 Amp microfuse J013 whenever C327 fails.

QUESTION NO. P925-7: Acer View 7276e monitor. R241 was burned. I changed R241 = 10K ohms.C327 = 220 pF/2KV,Q301 = FET BSS89, R329 = 10K, and 3 Amp picofuse J013. Now the monitor seems to be work but it displays 2/3 of the screen vertically on the right and rest of 1/3 of the right side image displays on the left side.
First, check there is still continuity in the path going through R241, to pin #1 of the TDA4858 IC. If yes, then probably the TDA4858 itself needs replacing. Also check that ZD210 = 5.1 volt zener, is not leaky/shorted/missing; it is intended to protect pin #1 of that IC.

QUESTION NO. P918-2: Acer 1772e monitor. I need values for R241, C327 and R329.
In the US, this Acer chassis is the Acer 7276e. R241 & R329 are both 10K ohms, and C327 = 220 pF/2KV (a 3 KV replacement is better). It is also wise to check R326, R328, FET Q301 = BSS89, HOT Q302 = 2SC5048, ZD201 = 5.1V, IC201 = TDA4858, and 3 Amp microfuse J013 whenever C327 fails.

QUESTION NO. P925-7: Acer View 7276e monitor. R241 was burned. I changed R241 = 10K ohms.C327 = 220 pF/2KV,Q301 = FET BSS89, R329 = 10K, and 3 Amp picofuse J013. Now the monitor seems to be work but it displays 2/3 of the screen vertically on the right and rest of 1/3 of the right side image displays on the left side.
First, check there is still continuity in the path going through R241, to pin #1 of the TDA4858 IC. If yes, then probably the TDA4858 itself needs replacing. Also check that ZD210 = 5.1 volt zener, is not leaky/shorted/missing; it is intended to protect pin #1 of that IC.

QUESTION NO. P918-2: Acer 1772e monitor. I need values for R241, C327 and R329.
In the US, this Acer chassis is the Acer 7276e. R241 & R329 are both 10K ohms, and C327 = 220 pF/2KV (a 3 KV replacement is better). It is also wise to check R326, R328, FET Q301 = BSS89, HOT Q302 = 2SC5048, ZD201 = 5.1V, IC201 = TDA4858, and 3 Amp microfuse J013 whenever C327 fails.

QUESTION NO. P1022-1: AcerView 76E 7276e Monitor. I need a cross reference for a transistor location Q301 part number reads H8 S S 89.
Transistor Q301 is a BSS89 F.E.T. made by Siemens or Philips. The Philips device is available from Newark Electronics, among others. You should also check the following components Q382, J013 (picofuse), C327 (220pF @ 2KV, the original cause of the problem), R326, R241, R328, and R329.

QUESTION NO. P512-3: Acerview 76e monitor has a bad C327 (220pf 2 2kv), not only did R241 and R329 go but also R326 and R328 burnt up. I need the values of R326 and R328.
R326 = 3.9K, R328 = 4.7K, both 1/8 watt.

QUESTION NO. P330-5: I need the value of r241 found burnt out in an Acerview 76e monitor.
The value of that resistor is 10k ohm 1/2 watt.
R241 = 10K ohms. Better also replace C327 = 220 pF/2KV, and check Q301 = FET BSS89, R329 = 10K, and 3 Amp picofuse J013.

QUESTION NO. P127-3: What type of transistor is Q301 in an Acer 7276e monitor? The monitor is not passing the Horiz drive signal past this transistor. I read 100 Ohms from base to emitter in both directions. Markings on the transistor are only J9 S S 89.
Q301 is BSS89, a small N-channel DMOS FET, made by Philips or Siemens, rated at 200 Volts, 0.3 Amp, 1 Watt, Rds[on] < 6 ohms. The pinout is S D G, despite Acer's misleading silkscreens, and it has an internal source-drain body diode. If this FET has died, you should also check the HOT = 2SC5048, C327 = 220 pF/2KV ceramic disk cap, J013 = 3 Amp picofuse, and resistors R241, R326, R328, R329.

QUESTION NO. P1022-1: AcerView 76E 7276e Monitor. I need a cross reference for a transistor location Q301 part number reads H8 S S 89.
Transistor Q301 is a BSS89 F.E.T. made by Siemens or Philips. The Philips device is available from Newark Electronics, among others. You should also check the following components Q382, J013 (picofuse), C327 (220pF @ 2KV, the original cause of the problem), R326, R241, R328, and R329.

QUESTION NO. P925-7: Acer View 7276e monitor. R241 was burned. I changed R241 = 10K ohms.C327 = 220 pF/2KV,Q301 = FET BSS89, R329 = 10K, and 3 Amp picofuse J013. Now the monitor seems to be work but it displays 2/3 of the screen vertically on the right and rest of 1/3 of the right side image displays on the left side.
First, check there is still continuity in the path going through R241, to pin #1 of the TDA4858 IC. If yes, then probably the TDA4858 itself needs replacing. Also check that ZD210 = 5.1 volt zener, is not leaky/shorted/missing; it is intended to protect pin #1 of that IC.

QUESTION NO. P918-2: Acer 1772e monitor. I need values for R241, C327 and R329.
In the US, this Acer chassis is the Acer 7276e. R241 & R329 are both 10K ohms, and C327 = 220 pF/2KV (a 3 KV replacement is better). It is also wise to check R326, R328, FET Q301 = BSS89, HOT Q302 = 2SC5048, ZD201 = 5.1V, IC201 = TDA4858, and 3 Amp microfuse J013 whenever C327 fails.

Alles Überprüfen !!! Was hier steht!!!

igor.gm

Hallo alle

Ich habe Monitor "Schneider OC-17DT05"(made by Korea) und brauche Schaltplan.
Kann jemand mir hilfen???
Für jede Hilfe bin ich dankbar!!!

E-Mail:borser@gmx.net

Gast schrieb am 2002-08-26 16:19 :
Falls noch Bedarf an einem Schaltplan fuer den Medion Monitor MD 1772ie besteht: ich habe gerade die Originalschaltplaene (11 DIN-A-3 Blaetter) erhalten!

Gruesse

medi


Hallo,

auch ich würde mich über die Schaltpläne freuen !!!!

Bitte melden bei     puettjer äht oe.uni-duisburg.de (automatisch editiert wegen spamgefahr)   

Gruß
Dirk

Zitat : Gast hat am 26 Aug 2002 16:19 geschrieben :

Falls noch Bedarf an einem Schaltplan fuer den Medion Monitor MD 1772ie besteht: ich habe gerade die Originalschaltplaene (11 DIN-A-3 Blaetter) erhalten! Gruesse medi

Hallo !!

Ich wäre auch sehr dankbar für eine Kopie der Pläne wenn Du noch welche verschickst?
Kannst mir ja eine Email zukommen lassen wenn ja.

Meine Email adresse lautet     Luziefer äht gmx.de (automatisch editiert wegen spamgefahr)   

Mfg Chriss

Hallo medi,

Könntest du mir bitte einen Schaltplan für den Medion 1772e zuschicken.
Ich übernehme selbstverständlich auch den Unkostenbetrag.

Mail:     joh.schulte äht t-online.de (automatisch editiert wegen spamgefahr)   


MfG

Joh. Schulte

Dieses Posting existiert leider nicht mehr. Bitte ein neues Thema öffnen.

Hello zusammen! wer kann mir helfen, mein Monitor ist defekt, ich habe es aufgemacht, es war 2 Widerstände R330 und R356 verbrannt. kann ich es reparieren???
danke im voraus

Falls noch Bedarf an einem Schaltplan fuer den Medion Monitor MD 1772ie oder ACER 7277E besteht, habe gerade die Originalschaltplaene (8 DIN-A-3 Blaetter) erhalten!
Kann ich euch per Mail schicken.

Gruß

Thorsten

    hallo äht th-john.de (automatisch editiert wegen spamgefahr)   

Hallo Thorsten,

ich hätte auch Ineresse an den Schaltplänen.

Grüße

Baldur