Pioneer VSX-1022-K Service Manual page 41

5
Step 7: HDMI AUDIO
*play is Dolby thru HD @ dts master audio source
IC1001 (pin 125)
No
Is there a 24.576 MHz
output?
(0 V ↔ 3.3 V)
Yes
IC1001 (pin 122)
No
Is there a 12.28 MHz
output?
(0 V ↔ 3.3 V)
Yes
IC1001 (pin 121)
No
Is there a 192 kHz
output?
(0 V ↔ 3.3 V)
Yes
IC1001 (pin 124)
No
Can observe the
digital signal?
(0 V ↔ 3.3 V)
Yes
IC1001 (pin 127)
No
Can observe the
digital signal?
(0 V ↔ 3.3 V)
Yes
IC1001 (pin 126)
No
Can observe the
digital signal?
(0 V ↔ 3.3 V)
Yes
IC1001 (pin 128)
No
Can observe the
digital signal?
(0 V ↔ 3.3 V)
Yes
IC2016 (pins 134,135,137,138)
Can observe the
digital signal?
(0 V ↔ 3.3 V)
Yes
HDMI AUDIO is OK
5
6
HDMI audio MASTER clock
output
HDMI audio BIT clock output
HDMI audio LR clock output
HDMI audio front L/R OUT
HDMI audio surround L/R OUT
HDMI audio center/sw OUT
HDMI audio surroundback OUT
HDMI audio front hight OUT
Check the VDD_PLL and GND
lines. Replace the D-MAIN Assy.
No
Check the switching IC.
IC1405, IC1406.
6
7
VSX-1022-K
7
8
A
B
C
D
E
F
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