Yamaha AW 1600, Service Manual

Page: 59 / 127

AW1600
59
The test items and the test results are displayed on the LCD.
4-9-3 Judgment
This test is executed automatically.
If the test completes successfully:
The message “ALL TESTS ARE OK” appears on the LCD.
Press the [ENTER] or [CANCEL] key. The test menu
screen reappears with “
{
” displayed to the left of the test
item, and the cursor advances to the next test item.
If the test fails:
If there is any error, the error message is displayed on the
LCD. Press the [ENTER] or [CANCEL] key. The test menu
screen reappears with “×” displayed to the left of the test
item.
4-9-4 Judgment
(1) “
{
” is displayed to the left of the test item:
The test completes successfully.
(2) “×” is displayed to the left of the test item:
The test fails or is canceled.
(3) “1:CPU Interface (Data bus 1)...NG” is displayed during
the test:
IC205 TXBusy Error
(4) “2:CPU Interface (Data bus 2)...NG” is displayed during
the test:
“0” is displayed for the bits whose write and read values
match. Bit with “×” is the error bit.
(5) “3:CPU Interface (Chip Select,TXB)...NG” is displayed
during the test:
IC205 CS Error
(6) “4:CPU Interface (Address bus)...NG” is displayed
during the test:
Same as * above.
(7) “5:CPU Interface (BUS,W/R,Reg)...NG” is displayed
during the test:
Same as * above.
(8) “6:DRAM Interface (Data bus)...NG” is displayed during
the test:
Same as * above.
(9) “7:DRAM Interface (Address bus)...NG” is displayed
during the test:
Same as * above.
4-10 DSP7 function test (10.DSP7)
4-10-1 Display
4-10-2 Test content
Check the interface between CPU
⇔
DSP7 interface, and
the serial I/O connections between DSP6
⇔
DSP7 and
HGA
⇔
DSP7.
The test items and the test results are displayed on the LCD.
4-10-3 Procedures
This test is executed automatically.
If the test completes successfully:
The message “ALL TESTS ARE OK” appears on the LCD.
Press the [ENTER] or [CANCEL] key. The test menu
screen reappears with “
{
” displayed to the left of the test
item, and the cursor advances to the next test item.
If the test fails:
If there is any error, the error message is displayed on the
LCD. Press the [ENTER] or [CANCEL] key. The test menu
screen reappears with “×” displayed to the left of the test
item.
4-10-4 Judgment
(1) “
{
” is displayed to the left of the test item:
The test completes successfully.
(2) “×” is displayed to the left of the test item:
The test fails or is canceled.
1: CPU Interface (Data bus 1)...
**
(TxBusy test of WCR regist)
2: CPU Interface (Data bus 2)...
**
(Write/read test to TxBuf)
3: CPU Interface (Chip Select,TXB)...
**
(Write/read test to TxBusy of DSP)
4: CPU Interface (Address bus)...
**
(Connection check of address bus)
5: CPU Interface (BUS,W/R,Reg)...
**
(Bus W/R register test)
6: DRAM Interface (Data bus)...
**
(Write/read test to DRAM)
7: DRAM Interface (Address bus)...
**
(Write/read test to whole domain of DRAM)
**
indicates the result. Contents in parentheses are not displayed
on the LCD.
*
MSB 28 24 20 16 12 8 LSB
IC205 XXXX XXXX XXXX XXXX XXXX XXXX XXXX XXXX
1: CPU Interface (Data bus)... **
(Write/read test to TxBuf)
2: CPU Interface (Chip Select)... **
(Write/read test to TxBusy of DSP)
3: CPU Interface (Address bus)... **
(Connection check of address bus)
4: DSP Connection... **
(Connection check between DSP6 and DSP7)
5: SIO Connection (HGA<->DSP7)... **
(Connection check between HGA and DSP7)
** indicates the result. Contents in parentheses are not displayed
on the LCD.
*** 10. DSP7 ***
[DIAGNOSTICS FOR DSP7]
1:CPU I/F (DATA BUS)...OK!
2:CPU I/F (DATA BUS)...OK!
3:CPU I/F (ADDRESS BUS)...OK!
4:SIO CONNECTION (DSP6<->DSP7)...OK!
5:SIO CONNECTION (DSP7<->HGA)...OK!
...THE END OF DIAGNOSTICS