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 Repair monitors IBM

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عدد المساهمات : 843
تاريخ التسجيل : 16/06/2010

مُساهمةموضوع: Repair monitors IBM    الجمعة مايو 27, 2011 12:58 pm





IBM 6312-002 Completely Broken.

S028 (1mF / 50V) in the Power
supply is defective.


IBM 8512-002 Completely Broken.

Transistor
line is defective. Q202 (D1739) is Replaced by BU2508AF. C222
(10mF/35V) check. PSU: R101 (2.7) Q/HS100 Substitute for BUZ80.


IBM 8513 is not working, the LED blinks.

Kondentsator PSU is defective.

IBM 8513 PSU clicks. (Closure)

S223 defective (4,7 nF/1500V)

IBM 8515 PSU clicks of a circuit in the line scan.

Q600 is defective BU2508. Poor
contact on Q501 , R623 , R710 .


IBM 8515 002 Totally not working. LED flashes.

S223 in the line scan is defective.

IBM 9515 and the frequency of
39.4 61kGts.


IBM 9515 image distortion at the maximum yakrosti.

IC5 is defective (4059)

IBM 9515 High-level when turned on. PSU clicks.

Q703 is defective IRF630.

IBM 9515 is not entirely work.

Closure
on the collector of the transistor row. S104 defective.


IBM 9515-002 There is no synchronization.

IC4 defective CD4070BE.

IBM 9525 Dimmer at work.

S534 is defective.

IBM 9525 is not entirely work.

SR210 , Q101 , Q102
faulty. Trayber chip MC34151 and diode on the leg № 6 are defective.


IBM 9525 No picture, high voltage is.

G2 Connections to R802
(2.2 ohm) ragged.


Keniskopa plug has a bad
contact.


IBM 9525-002 green sometimes disappears.

Connective
path between R885 and C845 is damaged.


IBM 9525-002 Inline transformer is defective.

Is replaced by "König
MAT3323A"


IBM 9525-002 brightness to be adjusted.

S534 defective (10nF)

IBM 9525-002 BS does not work.

CR211 is defective. On a bad contact
in the PSU to test.


ICL ALFASKOP A320 Strong noise of education in line scan.

S153 in the PSU is defective.

ICL ALFASKOP A320 is not entirely work. The closure of the line scan.

Line
defective transistor (BU2520AF) Electrolytes (1000mF) to +12 perhaps faulty.


IDEK MF8617A No picture. On-screen «Suspend»

EPROM
IC803 is faulty (93066) are interchangeable to a blank EPROM and with
the highest frequency included (approx. 80 KHz)


IDEK MF8617A No picture, high voltage is.

Fuse in the PSU is defective: R972
(3.15 F)


IKEGAMI CT-20HB PSU beeps. Closure in the line scan.

Q23 , Q5 is defective.
Reason: 2 electrolyte (47 mF/200V) on the supply voltage for the line scan. And
(47mF/35V) on voltage traybera.


INTERQUAD AC1795 = MAG MX17


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Repair monitors IBM
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