Pioneer VSX-1022-K Service Manual page 36

1
A
Step 9: DSP mode audio output
Digital output of each CH when inputting the digital signal with audio.
IC1401 (pin 18)
Is there a bit clock input?
Yes
IC1401 (pin 19)
B
Is there a LR clock
output?
Yes
IC1401 (pin 28)
Is there a data input?
Yes
IC1401 (pin 27)
C
Is there a data input?
Yes
IC1401 (pin 26)
Is there a data input?
Yes
D
IC1401 (pin 25)
Is there a data input?
Yes
To Step 10
E
F
36
1
2
D1BCK (BIT CLOCK)
No
(0 V ↔ 3.3 V)
D1LRCK (LR CLOCK)
No
(0 V ↔ 3.3 V)
front L/R data
No
(0 V ↔ 3.3 V)
surround L/R data
No
(0 V ↔ 3.3 V)
CENTER/LFE data
No
(0 V ↔ 3.3 V)
surround back L/R data
or front hight L/R data
No
(0 V ↔ 3.3 V)
Check the path between IC1601 and data & address lines. SDRAM
(IC1602), FLASH ROM (IC1603), replace the D-MAIN Assy.
2
3
VSX-1022-K
3
4
4