Probably it never existed a 1081 official service manual from Commodore, it's look more like a NAPCEC service manual & diagrams compilation of the 1084 series and his variants, like the nap6523, 8cm505, 1084S, 1084P and obviously the 1081. It's more complete than other scans and the quality of the scans also are far superior. It has two circuit diagrams variants of the 1081, mono and stereo versions. It doesn't include a diagram for the Philips CM8500 or CM8501, they look like the 1081 but they are slightly different.
Text excerpt from page 26 (click to view)
Press the CANCEL button and the normal TV programme will return with the Teletext page Header superimposed for 5 seconds. At the selected alarm time, the alarm page header will re-appear. This page remains stored in the memory until the TP-OFF command is pressed. TP-OFF HOLD Cancels TP-ON
- To retain the page selected. Hold will appear written in green at the top right hand side of,the screen. To cancel the command press TEXT - MIX - TP-OFF - CANCEL. Displays the top half of the page in large characters.
TOP BOTTOM
- Displays the bottom half of the page in large characters. Commands TEXT - HOLD - TP-ON - TP-OFF restore the mode into the upper half page. - Restores the character size to normal. - This command suppresses the TEXT display, restores Video picture while the system remains in Teletext mode, giving the possibility of selecting:
- Pages - using TP-ON
FULL CANCEL
- Alarm pages - TEXT and MIX will cancel the command. PICTURE 1 -10 Returns to TV picture from Teletext mode. Numbered keys (l-O/10) serve to select pages (3 digits) time (4 digits). If figures are incorrectly entered, the full sequence must be completed before re-entering correct figures. If in Video mode, the Station identity will be displayed for 5 seconds. In the Teletext mode, the page number is replaced by the station identity for 5 seconds.
