Denon AVR-1912 E2/EA - +8V wrong!

[Studio1@29]

I have dismantled 5 of the pcb's from the chassis of the AVR:(HDMI_B'D.,)(FRONT_CNT_B'D., )(SIDE_CNT B'D., )(AUDIO_VIDEO UNIT)(REG_CNT, ) in order to check the voltages of the +8v rail on its way from the REG_CNT.
To two of the Connector Blocks I have attached two 'Test tails' on certain +8V pins in order that the Voltage may be measured with the AVR powered up. 
I have attached 'Test Tail 1' to CN101, pin 1, (see page 110 of the Service Manual) and
I have attached 'Test Tail 2'  to CN14,  pin 14 (see page 111 of the Service Manual)
The results: Test Tail 1 = +10.78V (it should be +8V)
                      Test Tail 2 = + 4.589V (it should be +8V)
The IC801 (see page 114 of the Service Manual) shows pin 30 (of 100) as its *7V power contact.
The results at pin 30 of the IC801 read +3.83V. It should be +7V)
Can anyone suggest what is wrong here?
I am an Octogenarian beginner! (AD 1936)  Michael  UK
               

[mzacharias]

IC's like IC801 do go bad fairly frequently. These IC's run fairly warm as I remember, but if it is unusually hot I would say it is defective.

A+8 being low (and 7 by the time it reaches IC801) could be a bad IC106, could be loaded down by IC105, could be loaded down by IC801.

I think you need to isolate the A+8 from the rest of the circuit and substitute in 8 volts from an external supply. Once you have ruled out the voltage

regulator as the problem, one of the other chips is probably bad, and once again I'm looking at IC801.

[SoundTech-LG]

+1 The Regulators go bad consistently.