AFC1
30
2-2-7. DSP5
Displays the results of connections for all DSP5.
2-3.
Comprehensive inspection
2-3-1. Selecting the items for the comprehensive
inspection
Select the items to be inspected by setting the check boxes
on the “Complete Check” screen to on.
Refer to
“2-2 Main Sheet Inspection”
for test programs for
MIDI, CASCADE, WORD CLOCK DSP6/DRAM and DSP5.
For the comprehensive inspection of AFC1, uncheck the
check boxes of [LCD], [SWITCH], [DATA ENCODER],
[PCMCIA-CARD], and [USB].
2-3-2. SLOT
Insert the slot inspection jig card (TX800810) in the
indicated slots.
2-2-5. Word Clock
(1) INTERNAL LOCK
When the PLL circuit locks to the INTERNAL CLOCK, OK
is displayed.
(2) CASCADE IN-OUT
Check the word clock output from the 44th pin of the
[CASCADE IN] terminal. Click [OK] or [NG].
(3) W/C OUT
Check the word clock output from the [WORD CLOCK
OUT] terminal. Click [OK] or [NG].
(4) CASCADE OUT-OUT
Check the word clock output from the 19th pin of the
[CASCADE OUT] terminal. Click [OK] or [NG].
(5) W/C IN
When the PLL circuit locks to the word clock of 44.1 kHz
input to the [WORD CLOCK IN] terminal, OK is displayed.
(6) CASCADE IN
When the PLL circuit locks to the word clock of 44.1 kHz
input to the 19th pin of the [CASCADE IN] terminal, OK is
displayed.
2-2-6. DSP6 and DRAM
Circuit check for DSP6 and DRAM.
(1) DSP6
Displays the results of a circuit check from the So terminal
of DSP6 to the Si terminal of DSP6 via DSP5.
(2) DRAM
Displays the results of the DRAM address bus and data
bus connected to DSP6.
