Service manual

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MD-SR50H/50W/60E/60W
52 EXPORT0 LDCNT1 Output Recording head raising-lowering control output 1 See the separate table *3.
53 EXPORT1 LDCNT2 Output Recording head raising-lowering control output 2 See the separate table *3.
54 EXPORT2 — Output Not used. (Open)
55 EXPORT3 EMPH1 Output Audio emphasis control output 1 See the separate table *2.
56 EXPORT4 — Output Not used. (Open)
57 EXPORT5 OPTCNT Output Optical digital input circuit control 'H': Circuit operation ON
58 EXPORT6 DAPON Output D/A converter operation control output 'H': Operation ON
59 EXPORT7 ADPON Output A/D converter operation control output 'H': Operation ON
System LSI expansion output port (6th generation: LR37811)
Pin No.
Function
Port Name
Terminal Name Input/Output
Remarks
H H Normal mode
H L No adjustment mode
L H Test mode
L L (Settings prohibited)
TEST1
Details
*1: List of TEST port settings
H H fs=32K: 'ON'
H L fs=48K: 'ON'
L H OFF
L L fs=44.1K: 'ON'
EMPH1 EMPH0
Details
*2: List of EMPH port settings
H H Brake
H L Drive UP
L H Drive DOWN
L L Output OFF
LDCNT1 LDCNT0
Details
*3: List of LDCNT port settings
TEST0
IC401 RH-iX0341AWZZ: System Microcomputer (IX0341AW) (3/3)