Yamaha PortaTone PSR-270, Service Manual, Page: 9 / 33

PSR-270
9
(Fig.5)
[320]: Bind Head Tapping Screw-P 3.0X8 MFZN2Y (EP600280)
[330]: Bind Head Tapping Screw-P 4.0X8 MFZN2BL (VB931600)
(Fig.4)
10 LCD
10-5 Remove the AMPN 1/2 circuit board. (See Proce-
dure 8.)
10-6 Remove the two rubber contacts. Be careful not to
touch the conductive surface. The LCD can then
be removed. (Fig. 5)
10-1 Remove the lower case assembly. (See Procedure 1.)
10-2 Remove the INV circuit board. (See Procedure 3.)
10-3 Remove the PSV 2/3 circuit board. (See Proce-
dure 6.)
10-4 Remove the EL light.
* When replacing the EL light, solder the wires to
the EL light leads within 3 seconds a wire, keep-
ing the leads more than 3 mm.
* Do not bend the EL light.