Yamaha CL3 Service Manual page 141

1-9. SLOT Test
Contents: Checks the power voltage supplied to each interface and SLOT of MY SLOT.
3SLOT check
Example of executing screen
Test required/not required
Total judgment slot by slot
Number of the slot
being checked
Only SLOT 1 is valid
Judgment box when POWER = MANUAL is used.
Checking SLOT power voltage
Take measurement at each terminal of MY16-EX check jig using
a tester in the Manual mode for judgment.(For measurement,
connect a cable to the connector CN102 of EX.)
The COM test is applicable to SLOT1 only.
1-10. AIN/AOUT Test
This testing function is unused.
1-11. WORD CLOCK Test
Contents: Checks WORD CLOCK OUT → IN automatically
by counting it at PLLPU.
(Fs=44.1/48 kHz) Checks PLL LOCK by reading
the UNLOCK signal when the clock has been
stabilized after the Fs change (after about 200 ms).
Example of executing screen
Various Fs (frequencies) for the PLL LOCK check are
generated in Internal Clock of FPGA.
Fs = 44.1 kHz, 48 kHz
CL3/CL1
Number of SIO in SLOT
Data being
transmitted/received are
indicated.
The check result is NG
because the numeric
value is different.
The right end shows
LSB, indicating the bit of
0=OK, X=NG.
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