Apple 13In Monitor Fix R2

Date: Wed, 8 Feb 1995 19:15:37 -0600 From: kuiyu@mail.utexas.edu (Kui-yu Chang) Subject: apple-13in-monitor-fix-r2 Document : apple-13in-monitor-fix.txt Revision : 2 Date : 31 Jan 1995 composer : kuiyu@mail.utexas.edu CHANG, Kui Yu (Julian) 1 MONITOR ---------- AppleColor 13" High-Resolution RGB monitor 2 PROBLEM ---------- Powers itself off sporadically, green power light goes off with switch still stuck at 'ON' position. 3 SOLUTION 1 ------------- Adjust the variable resistor on the _back_ panel of the unit. DETAILS - On older models, this is simply the topmost control with a "mini-sun" icon beside it. - On newer models, this is accessible only after removing the case. This resistor is labelled "Cut-Off". The picture brightness level will vary with your adjustments. COMMENTS Normally, this solution only works if the problem was caused by a prior over- adjustment of this particular control/resistor. My experience with a working monitor is that if this brightness setting exceeds a threshold, the monitor will power off automatically. Resetting it to a normal level solves the problem. For my case, this was not the cause and thus SOLUTION 1 did not work. 4 SOLUTION 2 ------------- Replace the High voltage resistor. (the 'RED' block, to be called the 'block'henceforth) This is the big(about size of 2 cigarette boxes piled), red block sitting on the bottom shield, with 2 suction wires attached _and_ 2 wires soldered to it. On it is the part no. 1-230-666-21. One of the suction wires leads to a suction cap on the CRT(Cathode Ray Tube). DETAILS You can('might' for option c) get this from: a) SONY dealer $66.68 1-800-488-7669 Authentic SONY part # 1-230-666-21 b) Computer Component source $27.99 1-800-356-1227 Fax : 1-800-926-2062 OEM part, discount of $1.00 for qty of 11 or more. Remember to tell them you want a "Macintosh Replacement Part" : ORDER #34-480 APPLE MO401 RGB HIGH VOLTAGE BLOCK PART #1-230-666-21 After you have specified the above info., the sales assistant might ask you "Is this a Flyback?". Remember to answer "Yes" although it is not. Otherwise the salesperson might say "Sorry we don't have the part". They like to think of this as a "Flyback" Note 1 : Next day delivery cost $9.90 Note 2 : They do handle International Sales, but transaction amt must exceed US$250 (International Voice no. 1-516-496-8780) (International Fax no. 1-516-496-8984) c) Apple dealer Apple part # 1-230-666-21, ask for # 34-484 COMMENTS Some soldering is required(just 1 or 2 wires) ** Remember, it is advisable not to remove the original block before your receive the replacement block. You might forget the orientation since the OEM block doesn't look alike. I ordered my part from b), which is an OEM replacement. It has exa…