Complete service manual in very good scanning quality with all schematic and PWB graphics as well as assembly & maintenance instructions. A slight drawback is that the rastering of the PWB graphics sometimes makes it a bit difficult to follow fine traces, but no showstopper.
I searched the Internet exhaustively for this manual and Owner-Manuals was the least expensive...but provided an excellent reproduction within 4 hours. Very satisified.
Text excerpt from page 50 (click to view)
104S CM23 GSIII Go to cover page
0. General To be able to perform measurements and repairs on the "circuit boards", these unit should placed in the service position first. 1. Remove the rear cover - Open two lids with "-" type screwdriver. Refer to fig2 and fig3. - Remove 4 screws with "+" type screwdriver. 2. Video panel - Remove the metal shielding on rear side of Video panel by desolder lags of metal shielding. 3. Main panel - Disconnect the degaussing coil from Main panel. - Remove the video panel from CRT. - Remove the "screw" of I/F cable from Main panel. - Disconnect the CRT ground "1701" from Video panel. - Disconnect the Hi-Pot cap from CRT. - Disconnect the yoke wire connector "1601" from Main panel. - Slide the main panel out of bottom tray. - Place Main panel in service position as shown in Fig.1. - Mount Video panel again on CRT. - To connect Hi-Pot cap again. - To connect "1701" again. - To connect the yoke wire "1601" again.