Pioneer VSX-821-K Service Manual page 38
Audio/video multi-channel receiver
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Also See for VSX-821-K:
- Operating instructions manual (144 pages) ,
- Specifications (2 pages) ,
- Quick start manual (156 pages)
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1
A
Step 5: INPUT/OUTPUT Diagnosis
JACK1303 (pin 18)
Is the voltage 5 V?
Yes
JACK1302 (pin 18)//+5V_R2//IN2 (BD)
JACK1301 (pin 18)//+5V_R1//IN3 (DVD)
JACK1300 (pin 18)//+5V_R0//IN4 (DVR/BDR)
B
Yes
To Step 6
Step 6: Hot Plug Detect
JACK1303 (pin 19)
Is the voltage 5 V?
C
Yes
JACK1303 (pin 19)
Is the voltage 5 V when
selecting IN3?
Yes
JACK1302 (pin 18)//+5V_R2//IN2 (BD)
JACK1301 (pin 18)//+5V_R1//IN3 (DVD)
JACK1300 (pin 18)//+5V_R0//IN4 (DVR/BDR)
Yes
D
To Step 7
E
F
38
1
2
* when connected the equipment
to IN1 (VIDEO):
+5V_R3
Check the JACK1303.
No
If JACK1303 is failure,
replace JACK1303.
HPD_SINK
Check the JACK1303.
No
If JACK1303 is failure,
replace JACK1303.
* when connected the equipment
to IN1 (VIDEO):
HPD3
Check the JACK1303 and
No
IC1303. If JACK1303 or
IC1303 failure, replace
JACK1303 or IC1303.
VSX-821-K
2
3
Step 7: SDA /SCL
IC1308 (pin 47)
Does a signal output
in constant period
(0 to 5 V)?
Yes
IC1308 (pin 46)
Does a signal output
in constant period
(0 to 5 V)?
Yes
IC1308 (pin 49)
Is there a same signal
as IC1308-pin 24
(0 to 3.3 V)?
Yes
IC1308 (pin 48)
Is there a same signal
as IC1308-pin 23
(0 to 3.3 V)?
Yes
IC1303 (pin 44)
Is there a same signal
as IC1308 pin 49 when
selecting IN1?
(0 to 5 V)
Yes
IC1303 (pin 43)
Is there a same signal
as IC1308 pin 48 when
selecting IN1?
(0 to 5 V)
Yes
JACK1302 (pin 18)//+5V_R2//IN2 (BD)
JACK1301 (pin 18)//+5V_R1//IN3 (DVD)
JACK1300 (pin 18)//+5V_R0//IN4 (DVR/BDR)
C
3
4
SDA (HDMI_OUT)
Check the JACK1304 and
No
IC1308. If JACK1304 or
IC1308 is failure, replace
JACK1304 or IC1308.
SCL (HDMI_OUT)
Check the JACK1304 and
No
IC1308. If JACK1304 or
IC1308 is failure, replace
JACK1304 or IC1308.
SDA _SINK
Check the IC1308 and
No
IC1303. If IC1308 or
IC1303 is failure, replace
IC1308 or IC1303.
SCL_SINK
Check the IC1308 and
No
IC1303. If IC1308 or
IC1303 is failure, replace
IC1308 or IC1303.
* when connected the equipment
to IN1 (VIDEO):
SDA3 (HDMI IN1(VIDEO))
Check the IC1308 and
No
JACK1303. If IC1308 or
JACK1303 is failure,
replace IC1308 or JACK1303.
SCL3 (HDMI IN1(VIDEO))
Check the IC1308 and
No
JACK1303. If IC1308 or
JACK1303 is failure,
replace IC1308 or JACK1303.
4
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Troubleshooting
