This is a good quality scan of the service manual which includes an assembly diagram, block diagram, schematic, and parts list. Exactly what is needed to repair my KR-V55R receiver.
Text excerpt from page 43 (click to view)
A-2. Accessories
AM
1
[MA]
A-2
AM
Ref. No. 2101 2102
Part No. A-1157-924-A 1-964-407-11
$
Description TV TUNER GP HARNESS TV TUNER CABLE
AX570G
3
This parts list contains two different types of parts. The first type is the parts that are common to all models. The other type is the parts that are different depending on each model.