TX-SR674/674E/8467
OPERATION CHECK-4(1/2)
DSP DEBUG MODE
E 1 A 4 8 K 0 N / O F F P o O
V e r . 0 . 5 0 / 0 5 1 3 1 a
<Ex.>
1
4
2
5
6
8
7
10
3
9
The operation of DSP is able to checked by the information displayed on FL in this debug mode.
This information will help to pursue the cause of trouble.
UNLOCK
E = UNLOCK
= LOCK
1
Digital Selector
0 = None
1 = OPT 3
2 = OPT 2
3 = OPT 1
4 = COAX 1
5 = COAX 2
7 = FRONT
2
Sampling Frequency
and Emphasis
32K = 32 kHz without Emphasis
44K = 44.1 kHz without Emphasis
48K = 48kHz without Emphasis
64K = 64 kHz
4
DIR Detect Type
0 = Analog
1 = PCM
2 = Not PCM
3 = Data
4 = DTS CD (Not used)
5 = Multich
6 = Not Decided
5
DSP Detect Format
P = PCM (Analog)
D = Dolby Digital
d = DTS
A = AAC
? = UNKNOWN
9
DSP Decode
o = Decode OK
x = Decode NG
10
To set in DSP debug mode
1. Press and hold down the DISPLAY button, then press the STANDBY button while the unit is power ON.
The version number of microprocessor is displayed only for 2 seconds.
2. Press the DISPLAY button while " DSP :06421A" is displayed. The status of DSP and DIR will be displayed.
To exit
Press STANDBY/ON button.
-------------------------------- DIR ------------------------------------
DIR Status
D = Digital
A = Analog
M = Multich
P = Multich PCM
p = PCM Fixed
d = DTS Fixed
3
------------------ DSP --------------------
Content of display
CODEC CLOCK MODE
N = Normal
U = Up Sampling
H = High Sampling (Double Rate)
D = Down Sampling
Q = Quad Rate
6
DSP Port
0 = NIC
1 = DEC
2 = BUSY
3 = EXEC WAIT
04 = Boot
11 = Restart
FF = Free
7
11
<Ex.>
6 = HDMI
88K = 88.2 kHz
96K = 96 kHz
176 = 176.4 kHz
192 = 192 kHz
32e = 32 kHz with Emphasis
44e = 44.1 kHz with Emphasis
48e = 48 kHz with Emphasis
DSP Sequence
8
Mute
11
= Selector IC(Q5501)
= DSP(Q201)
= DIR(Q301)
(Normal state)
(Abnormal state)
------- Main Micro Processor --------
0
1
2
3
1. Press the TONE+ button within 2 seconds above, the version number of DSP is displayed.
D S P : 0 6 4 2 1 A
<Ex.>
Summary of Contents for TX-SR674
Page 47: ...TX SR674 674E 8647 PRINTED CIRCUIT BOARD VIEWS 6 A 1 2 3 4 5 B C D E F G H...
Page 49: ...TX SR674 674E 8647 PRINTED CIRCUIT BOARD VIEWS 7 A 1 2 3 4 5 B C D E F G H Soldering side...
Page 63: ...TX SR674 674E 8647 PRINTED CIRCUIT BOARD VIEWS 15 A 1 2 3 4 5 B C D E F G H Soldering side...