Pioneer SC-99 Service Manual page 40

1
[3] Protection Circuit Process List (XMHLPERR)
Item Purpose
Detection of over-
MHL
A
current in MHL
Overcurrent
power supply
detecition
XMHLPERR Circuit
B
G
DIGITAL MAIN ASSY
V+5_R7
C
D
GNDD
E
F
40
1
2
Detection Method
IC9603 detectes MHL
circuit overcurrent and
XMHLPERR port is
set to "L".
IC9603
R9644
!
BD82065FVJ 100
R9626
10
2
3
Status of Equipment Warning Indication
Flashes "MHL POW
ERR" and stops MHL
power supply.
R263
XMHLPERR
10
MHLPOW
V+5_MHL
R9606
0 (2125)
R9609
0 (2125)
SC-99
3
4
Remarks
MHL power is not
supplied until the
MHL equipment is
acknowledged
after second
power-on.
67
UCOM
IC101
4