Panasonic PT-TW230U Service Manual

Also see for PT-TW231RE: Operating instructions Operating instructions

Contents

Panasonic PT-TW230U Service Manual Manual pdf 7 page image

-7-This projector provides the following circuit protections to operate in safety. If the abnormality occurs inside the projec-tor, it will automatically turn off by operating one of the following protection circuits.Circuit ProtectionsFuse(F601)A fuse is located inside of the projector. When the ON(G)/STANDBY(R) indicator is not lighting, the fuse may beopened. Check the fuse as following steps.The fuse should be used with the type listed right;How to replace the fuse1. The fuse is placed on the filter board behind the mainboard. Remove the cabinet top, AV panel and mainboard.2. Take the fuse off, and replace the old one with thespecified type.Lamp cover switch(SW901)The lamp cover switch (SW901) cuts off the drive signalto the lamp circuit when the lamp cover is removed ornot closed completely. After opening the lamp cover forreplacing the lamp ass’y, place the lamp cover correctlyotherwise the projector can not turn on.Thermal fuse(SW902)There is the thermal fuse (SW902) inside of the projec-tor to detect the internal temperature rising abnormally.When the internal temperature reaches near 94˚C, thethermal fuse opens to cut off the power to the powercircuit.If the thermal fuse opens, the projector cannot turn on.Thermal fuse replacement is required.Thermal fuse(SW902)Lamp cover switch(SW901)Fuse(F601)Fuse Part No, : 423 034 4101TYPE T6.3AH 250V FUSEHollyland Co, Ltd. TYPE 50CT063H