DME4io-ES/DME8i-ES/DME8o-ES
57
2-4. When the test is started
Word clock and signal
fl
ows are as follows when the test is started.
Model
WORD CLOCK
Flow of audio signals
DME4io-ES
Cobra 96 k
INPUT1-4 → ETHER SOUND OUT 1, 3, 5, 7 (Double Speed)
ETHER SOUND IN 1, 3, 5, 7 (Double Speed) → OUTPUT1-4
DME8i-ES
Cobra 96 k
INPUT1-8 → ETHER SOUND OUT 1, 3...13, 15 (Double Speed)
DME8o-ES
Cobra 96 k
ETHER SOUND IN 1, 3...13, 15 (Double Speed) → OUTPUT1-8
The
fl
ow of DME Satellite at FS=48 kHz during AD/DA test is as follows, not as in the above.
When the Fs is 48 k/96 kHz during AD test/DA test
Model
WORD CLOCK
Flow of audio signals
DME4io-ES
Cobra 48 k
INPUT1-4 → ETHER SOUND OUT 1, 3, 5, 7
ETHER SOUND IN 1, 3, 5, 7 → OUTPUT1-4
Cobra 96 k
INPUT1-4 → ETHER SOUND OUT 1, 3, 5, 7 (Double Speed)
ETHER SOUND IN 1, 3, 5, 7 (Double Speed) → OUTPUT1-4
DME8i-ES
Cobra 48 k
INPUT1-8 → ETHER SOUND OUT 1/2, 3/4...13/14, 15/16
Cobra 96 k
INPUT1-8 → ETHER SOUND OUT 1, 3...13, 15 (Double Speed)
DME8o-ES
Cobra 48 k
ETHER SOUND IN 1, 3...13, 15 → OUTPUT1-8
Cobra 96 k
ETHER SOUND IN 1, 3...13, 15 (Double Speed) → OUTPUT1-8
During AD test/DA test when inspecting AD circuit board/DA circuit board
Model
WORD CLOCK
Flow of audio signals
DME4io-ES Cobra 96 k/48 k
INPUT1-4 → OUTPUT1-4
3. Test items
3-1. SRAM test (NO. 01)
Contents:
Checks Address Bus and Data Bus of SRAM.
Example of Executing Screens
*** 01. SRAM ***
EXIT:[ENTER]
SRAM AddressBus
OK!
SRAM DataBus
OK!
*** 01. SRAM ***
EXIT:[ENTER]
SRAM AddressBus
NG!
SRAM DataBus
NG!
Indicated in case of OK
Indicated in case of NG
Messages
• When address bus access abnormality is detected:
NG: SRAM AddressBus NG.!
• When data bus access abnormality is detected:
NG: SRAM DataBus NG.!
Troubleshooting
Check for malfunction of SRAM (CPU circuit board: IC009) and connection between the SRAM and CPU (CPU
circuit board: IC002).
Note
If the SRAM test is executed, contents of the SRAM will be 0 cleared.
After executing this test, execute “Initialize DME” (see page 116) to initialize the DME Satellite.
Analog
ES OUT
NAI48
Input 1
to
Input 4
1/2
7/8
AES/EBU 1
1ch/2ch
AES/EBU 1
7ch/8ch
Input 5
to
Input 8
ES OUT
9/10
ES OUT
15/16
AES/EBU 2
1ch/2ch
AES/EBU 2
7ch/8ch
[Example]
Содержание DME4io-ES
Страница 39: ...39 DME4io ES DME8i ES DME8o ES Pattern side パターン側 DSP Circuit Board DSP 2NA WG30160 1 ...
Страница 41: ...41 DME4io ES DME8i ES DME8o ES Pattern side パターン側 AD Circuit Board DME4io ES DME8i ES AD 2NA WG30380 1 ...
Страница 43: ...43 DME4io ES DME8i ES DME8o ES DA Circuit Board DME4io ES DME8o ES Pattern side パターン側 AD 2NA WG30390 1 ...