I searched EVERYWHERE looking for the manual/s on this "extinct" amp. Owner-Manuals.com made it available and for nearly nothing. Thanx to them, I can decipher the unknown cables and sort them out. Thanx, Owner-Manuals.com!!
Great manual...really saved me. The only problem is that I thought I would be able to download it directly when I paid for it but never received the download instructions until the next morning. The board trace pages were somewhat light also: really need to turn up the contrast on the printer before printing them. The schematic page was great; very clear! Well worth the money.
I've been in the electronic business for a long time. I used to buy Sam's Photofact for my needs which intailed having to go to the store and paying about $20 for a package of 3 different units so I was forced to buy more than I needed just to get one.
Owner manual is just at your keyboard and the information is almost instantansouly and the cost is very reasonable. Easy to print out if needed or simply read off of the screen. The larger the screen the better for obvious reasons.
Very good manual, at a very good price. Received in a timely manner
Text excerpt from page 4 (click to view)
5. Replacing switch in HD 7500 and HD 7501 START POSITION MID POSITION SWITCH HOLE IN HOUSING PART 25MM. END POSITION
HOUSING PART SMALL DETENT PIECE A MOVE THE SWITCH IN THIS DIRECTION
PRESS IN THIS DIRECTION
6. Colour identification - Firstly determine your type of appliance (Column A) - Secondly determine the colourcode, which is printed on the typeplate of the appliance: HD 7500 /A /. /. is the colourcode - Determine also the coloursetting of the jug handle (Column B) - In the next columns you can read the original coloursetting of the other service parts.
A Type of appliance colourcode HD 7500 HD 7501 HD 7504 /2 /1 /1
B Jug handle (item 11)
C Jug lid (item 10)
D Jug cap (item 12) + spring orange orange
E Housing (item 3A)
F Filterholder + Cap (item 5) white/white ivory/ivory ivory/ivory