Marantz SR7013 Service Manual page 122

3-13. Error Code H1-16 failure detection procedure
Checking device. [IC432 : SiI9437]
Check the power supply voltage. (ARC IC)
Check item(3-13.1.). Check the power supply voltage. :
Does the power supply voltage of the ARC IC [IC432] indicate the correct voltage (1.21V)?
The test points are as follows.
JK432
HDMI OUT
[MONITOR2]
C4456
YES
Check item(3-13.2.).
Check the power components [IC433] and the pattern on the sub-
strate.
If there is no problem, remove the ARC IC [IC432] from the substrate
and measure the voltage at the test point of
Is the power supply voltage correct (1.2V)?
Replace with a new device.
Recheck from
If it does not work, replace the PCB.
NO
Check the power supply voltage. :
check item (3-13.1.).
YES NO
The power supply circuit is
faulty.
Replace the PCB.
check item (3.1.)
Checking the reset waveform. (ARC IC)
Check item(3-13.3.). Checking the reset waveform :
Check the waveform.
Is the "RESET" waveform of the ARC IC [IC432] correct (like the
one shown in the diagram) when the power is turned on?
U1007
ARC_RST
YES
ARC IC [IC432] is faulty.
Replace with a new device.
Recheck from check item (3.1.)
If it does not work, replace the PCB.
122
Examples of confirmation waveform
Voltage scale : 1.0V/div
Time scale : 20ms/div
NO
Check the reset circuit between
CPU [IC151] and ARC IC [IC432].
If there is no problem, the ARC IC
[IC432] is faulty.
Replace with a new device.