Yamaha Disklvaier Mark II XG Series Service Manual page 25

IC BLOCK DIAGRAM
• HD74HC123AFPTR (XL106A00) • MC34051MEL (XP881A00)
SINGLE SHOT Dual EIA-422/423 Transceiver
• SN74HC14NSR (XC725A00) • NJM2903N-T1 (XD672A00)
• TC74C14F (XS343A00) Dual Operational Amplifier
Hex Inverter
• LU59530 (XF937A00) • TC74AC541F (XS344A00)
Decoder Octal 3 State B
MX100IIXG
• SN74HCU04NSR (XC723A00)
Hex Inverter
• µPC4572HA (XF633A00)
Dual Operational Amplifier
• SC7SU04FEL (XI348A00)
Inverter
26
• NJM2901M-T1 (XK910A00) • TC74AC138F (XN440A00)
Comparator Demultiplexer
• TC74HC4040F (XR684A00) • TC74AC32F (XR771A00)
Binary Counter Quad 2 Input OR
MX100IIXG
• TC74AC574F (TP1)(XR237A00)
Octal 3-State D-FFS
I
27