Pioneer VSX-1018AH-K Service Manual page 44

1
A
A
* When connected the source
R0PWR5V
R111
No
Is the voltage
"H" (3.3 V)?
Yes
B
Step 3-4: Hot Plug Detect
* When connected the source
HPDET3
IC501 (Pin 34)
No
Is the voltage
"L" (0 V)?
Yes
C
HPD(BD)
JA1152 (Pin 19)
No
Is the voltage
"H" (5 V)?
Yes
* When connected the source
HPDET2
IC501 (Pin 91)
D
No
Is the voltage
"L" (0 V)?
Yes
HPD(HDMI1)
JA1151 (Pin 19)
Is the voltage
"H" (5 V)?
Yes
E
* When connected the source
HPDET1
IC501 (Pin 93)
No
Is the voltage
"L" (0 V)?
Yes
F
44
1
2
equipment to IN2.
G3
Check the parts and
patterns in the path.
No
Replace IC151, Q151 or R155.
equipment to BD IN.
C
Check the patterns in the path.
No
Replace IC501.
H1
Check the patterns in the path.
Check the Q1152 and R1152.
No
Replace Q1152 or R1152.
equipment to IN1.
C
Check the patterns in the path.
No
Replace IC501.
H2
Check the patterns in the path.
Check the Q1151 and R1151.
No
Replace Q1151 or R1151.
equipment to IN2.
C
Check the patterns in the path.
No
Replace IC501.
2
3
JA1102 (Pin 19)
Is the voltage
"H" (5 V)?
Yes
JA301 (Pin 18)
IIs the voltage
"H" (5 V)?
Yes
IC301 (Pin 51)
Is the voltage
"H" (5 V)?
Yes
To Step 4-1
VSX-LX51
3
4
HPD(HDMI2)
H3
No
Check the patterns in the path.
Check the Q1102 and R1102.
No
Replace Q1102 or R1102.
HPD(HDMI OUT)
H4
No Check the patterns in the path.
Check the JA301.
No
Replace JA301.
HPD(HDMI Tx)
H5
No
Check the patterns in the path.
Check the D301 and R313.
No
Replace D301 or R313.
4