This is the original manufacturers service manual, with detailed info on the circit boards, explosion drawings of all parts in assembly order, and tuning instructions. The only thing missing is the information on the dimensions of the various drive belts. mail me if you need them. gcrossman_at_aol.com
This service manual for the Kenwood KT-990D was reproduced really well ,is very legible and manual is complete.Combined with the low price paid,in the future,I will be checking Owner-Manuals.com any time I need a manual.
When I purchased this manual I had my doubts regarding the quality as the price was so reasonable as compared to other outlets.
The manual itself is of high standard the print is very clear as are the diagrams. Obviously with the diagrams one has to zoom in otherwise it is to small to be able to read.
Overall I am very pleased with the company who delivered as they said and with the manual they supplied.
I occasionally require a manual and now having registered with this company I shall order from them in the future.
Text excerpt from page 68 (click to view)
CHAPTER 4 DISASSEMBLY/ASSEMBLY
5.7.2 Motherboard CPU
The CPU chip on the motherboard is installed in a socket (see F04-506-01 on page 4-20). The socket that holds the CPU on the motherboard is a Zero Insertion Force (ZIF) socket that allows the chip to be removed. Pin 1 on the ZIF socket is denoted by an angled corner. a. To Replace the CPU 1. Remove the CPU fan and heatsink as described in �To remove the CPU fan and heatsink� on page 4-32. 2. Lift the lever to release the CPU from the socket (see F04-507-03).
CPU Lever
Pin 1(angled corner on socket)
ZIF socket
F04-507-03 Removing the CPU 3. Grasp the edges of the CPU and gently pull it out of the socket. 4. Insert the new CPU so that the notch on the chip lines up with the notch area on the socket. Pin 1 on the CPU is denoted by an angled corner. The angled corner should point to the small 1 printed on the board directly below the CPU socket. 5. Push down the socket lever to secure the CPU. 6. Replace the CPU fan and heatsink as described in �To replace the CPU fan� on page 432.
