Wanting to repair a neighbours tape recorder I needed the necessary information, it makes it easier. Although the service manual is described as "Language : English" To my dismay I found that it is entirely written in German, a language I do not understand. At least I now have the schematics which will help of sorts. I may not use this service again due to the laguage difficulty after all when it states English you do not expect it to be entirely in another language.
Good quality (clearly readable) manual, I'm glad I could find it here, at a bargain price!
Text excerpt from page 10 (click to view)
AV-21EM
s DEFLECTION CIRCUIT ADJUSTMENT (Page 20)
[SUB MENU 3. DEF] Initial setting value Setting item 1. VER. POSITION 2. HOR. POSITION 3. VER. HEIGHT 4. VER. LINEARITY 5. VER. SCURVE 6. HOR. VCO ADJUST : Do not adjust. Adjustment name Vertical center Horizontal center Vertical height Vertical linearity Vertical scurve Horizontal VCO Variable range 50Hz �4 ~ +3 �16 ~ +15 �64 ~ +63 �32 ~ +31 �32 ~ +31 �64 ~ +63 �1 +3 �35 +15 �32 0 60Hz �3 +3 +1 �1 0 0
s VSM PRESET ADJUSTMENT (Page 22)
[Setting Values for SUB MENU 4. VSM PRESET] VSM preset VSM mode Setting item TINT SETTING VALUE COLOUR SETTING VALUE BRIGHT SETTING VALUE CONT. SETTING VALUE SHARP SETTING VALUE : Do not adjust.