Horizontal AND Vertical Hold Lost

SOURCE: Sanyo 25" Standard Tube Vertical Deflection Problem

you can proceed as follow to fix it.

1. reduce brightness to minimum to avoid screen burn.
2. check voltage on vertical uotput
3. check yoke connector for loose.
4. check v/yoke winding.
5. check v/drive from signal processor to vertical output

now your problem how to find out whether drive is there or not it is very simple even you donot have scope.

you simply touch with screw driver or meter prob  at the poibt where vertical signal is input to vertical stage

if h/line is spreadindg or tries to spread then your output is ok &problem is in drive ckt.

for schematic try given site give model no &download it

http://www.eserviceinfo.com/index.php?what=search2

hope this will help

SOURCE: users control manual adjustment

there are little plastic knobs on the inside or its done through the service menu. try http://www.shopjimmy.com/ they have really good on site techs that will help you on the phone for free.