DA824
29
1.
Reparations
· Connect PC (operating MS Windows) to COM terminal.
· Input 48 kHz word clock to word clock IN terminal.
· Insert the slot inspection jig (TX800810) into the slot.
LMY-SLOT inspection jig specification manual
<Menu of Test Program>
The test program inspects the following eight items.
1. SRAM
CPU connection check (automatic inspection)
2. SLOT
CPU connection check (automatic inspection)
3. SLOT clock relationship check (automatic inspection)
4. SLOT power supply peripheral check (automatic inspection)
5. WORD CLOCK IN
CPU connection check (automatic inspection)
6. Residual noise check (manual inspection)
7. COM terminal check (visual).
8. LOCK LED/POWER LED check (visual)
Execute the test program after loading DA824DIAG/V1.00 program.
2.
Test procedure execution program
Connect the PC and COM terminals/ CN903 with a Dsub 9-pin serial cross cable and start the terminal software (such as Hyper
Terminal).
The setting for the communication format is
Bit Rate:
38400 bps
Data length: 8 bits
Stop bit:
1
Parity:
none
The next time the power is turned on, the message
will be dispalyed in the window for the terminal software.
Use the keyboard for the PC to enter “diag” and screen display will change to
and the DA824 will enter the test program mode. The version of the test program will be shown as x.xx. To remove the test
program mode, enter "reset". It will be displayed as followed and it will be the same as when the power is turned on.
TEST PROGRAM
This is DA824 2000
DA824>
DA824>diag
DA824 Diagnosis version Vx.xx MAR.2000
DA824_DIAG>
DA824_DIAG>reset
This is DA824 2000
DA824>
WORD CLOCK
COM
(TX800810)
IN
WORD CLOCK
48kHz
PC
DA824
SLOT INSPECTION JIG
LEVEL GAUJE
OUTPUT1-8
Summary of Contents for DA824
Page 21: ...E E 3NA V485480 1 DA824 21 MAIN Circuit Board ...
Page 22: ...E E MAIN MYSL 3NA V485480 1 MYSL Circuit Board Pattern side Pattern side DA824 22 ...
Page 25: ...3NA V485470 1 G G DA Circuit Board DA824 25 ...
Page 26: ...DA JK 3NA V485470 1 G G JK Circuit Board Pattern side Pattern side DA824 26 ...
