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DEBUG MODE-2
Content of display(Continued)
8 CODEC CLOCK MODE
N = Normal
U = Up Sampling
H = High Sampling (Double Rate)
D = Down Sampling
Q = Quad Rate
9
Not Used(Slash)
10
DSP Port
(Normal state)
bit0 = NIC
bit1 = DEC
bit2 = BUSY
bit3 = Exec Wait
11 12
-
DSP Sequence
26 = Not Free
2F = Mute Control
FF = Free
Trouble Shooting by DEBUG MODE
This debug mode will help in digital audio no sound trouble.
Check information on FL display and the related devices or circuits.
Digit no
Symptom on display
on FL
1
"E" is displayed
-
Displayed freq. is different
4
6
from input
Displayed format is different
7
from input
Displayed format is different
13
from input
"x" is displayed
14
13
DSP Detect Format
P = PCM (Analog)
D = Dolby Digital
d = DTS
A = AAC
S = DSD
p = Dolby Digital+
T = TrueHD
H = DTS-HD High Resolution
M = DTS-HD Master Audio
? = UNKNOWN
14
DSP Decode
o = Decode OK
(Abnormal
x = Decode NG
state )
-
15 16
1st DSP Sequence
04-0D = Boot
10-17 = Update Mode
20-33 = DSP Setting
FF
-
17 18
2nd DSP Sequence
04-0D = Boot
10-17 = Update Mode
20-33 = DSP Setting
FF
Cause
No input signal to DIR.
No input signal to DIR.
No input signal to DIR.
Input signal to DSP is no good.
Interface between DSP and MPU is
no good.
= Free
= Free
Note:
MPU is short for Micro Processor: Q7001.
1st DSP: Q3401, 2nd DSP: Q3501, 3rd DSP: Q3601
DIR: Q3041
DAC: Q3701, Q3721, Q3741, Q3761, Q3781
Flash ROM: Q3451, Q3551, Q3651
SDRAM: Q3461, Q3471, Q3561, Q3661
Audio Selector: Q4029
Related devices from digital input to DIR.
Related devices from digital input to DIR.
Related devices from digital input to DIR.
Related devices from DIR to DSP.
Related devices from MPU to DSP.
TX-SR875
19 20
-
3rd DSP Sequence
04-0D = Boot
10-17 = Update Mode
20-33 = DSP Setting
E0-E2 = Auto Speaker Setup
FF
= Free
-
21 26
Not Used
19 20
-
MPU MUTE Output Cause
bit0
= Selector IC
bit1
= Effector
bit2
= DSP
= DIR
bit3
bit4
= HDMI
bit5
= XM
bit6
= Auto Speaker Setup
bit7
= Speaker Config
Check
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