JVC RX-D Series Training Book page 63

Check Drive IC
4.2V P-P
M CLOCK
10V P-P
M CLOCK
The voltages marked on IC251 pins are refer to
red color shows the different when 2 MOSFET are de-soldered. (This is front L/R channels, the DC
level at pin2/4 are different on other 5 channels; on RX-D702, these DC voltages are different too)
1.8 3.84
2.84
3.02
1.02
3.03
0V (AMP-B)
4.8 0.32
IRS20124S-X
AMP-B_ +12V (-10.6V)
M CLOCK
40.9 29
34.7 29
30.9 29
10.7
10V P-P
M CLOCK
'AMP –B'; the blue
70V P-P
M CLOCK
color is under normal condition, the
AMP+B
(+32.1V)
AMP-B
(-30.9V)