My-Slot Test; Testing Items - Yamaha DME24N Service Manual

DME24N/DME64N

1-12. MY-SLOT Test

Content: Checks I/O and power supply voltage of MY-
SLOT.
Setup: Inserts MY-SLOT CHECK Ver. 2 test jig to
SLOT1-SLOT4 for DME64 and SLOT4 for DME24.
Testing item
Master WCLK
SIO
/IRQ
/CON
COM
FS
SUPPLY VOLTAGE
ADDRESS BUS
DATA BUS
108
Contents
Clock check at MSWCLK INT. 48k
SIO check (MUTE OFF/ON) for DSP7, ATSC2, MY-SLOT
Input/output CH for DSP, ATSC2: 4 ch/line fixed,
2 ch/line (8CH) and 4 ch/line (16CH) connections between ATSC2 MY-SLOT
/IRQ signal input check (Hi/Lo)
/CON signal input check (Hi/Lo)
COM (SIO4) loop back check (for SLOT3 and 4 only)
4 Bytes transmission and reception of 00H, 55H, Ash and FFh at 38.4 kBPS
Checking various FS and SYNC (48 kHz, 96 kHz)
Voltage check including +20V, -15VA, +5VA, +3.3V, -5VA and -15VA
Checking address buses A [1] ... A [10]
Checking data buses D [0] ... D [15]
Example of Executed Result Screen (Normal)
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12. MY-SLOT
SLOT4:
Master Word Clock OK!
SO/SI OK!
/IRQ OK!
/CON OK!
COM (SIO4 SLOT1) OK!
FSM 48k OK!
FSM 48k OK!
SYNCM 48k OK!
64FSM 48k OK!
128FSM 48k OK!
256FSM 48k OK!
MSSYNC 48k OK!
MSWCLK 48k OK!
MS256 48k OK!
MSSYNC 96k OK!
MSWCLK 96k OK!
MS256 96k OK!
+20V OK!
+15VA OK!
+ 5VA OK!
+ 5V OK!
+ 3.3V OK!
- 5V OK!
-15V OK!
Address Bus All OK!
Data Bus All OK!
Fig. 25. MY-SLOT Test Screen (1)

Testing Items

Testing items to be performed with MY-SLOT CHECK Ver.2
test jig are shown below with test contents.
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Scroll Display
Scroll Display
Scroll Display
EXIT: [ENTER]