Sony XR-4880 Service Manual page 24

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Pin No. Pin Name
50 NCO
51 AMSON
52 N/R-OUT
53 MTLON
54 TAPMUT
55 DOLON
56 AMSIN
57 to 75 NCO
76 ST
77 SD-IN
78 REIN 1
79 REIN 0
80 AD ON
81 PW SEL
82 ILLON
83 REL
84 POS3
85 POS2
86 POS0
87 POS1
88 LM LOD
89 LM EJ
TE
L 13942296513
90 TAPON
91 CM ON
92 PW ON
93 FM ON
94 TUNON
95 DAVSS
96 to 99 NCO
100 DAVDD
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I/O
O Not used
O "L" is output in AMS mode
O FWD/REV control output
I/O Metal control input/output
O Tape mute control output
I/O Dolby control input/output
I Input to detect existence of song during AMS mode
O Not used
I/O Combination stereo input and monaural output
I SIGNAL DETECTOR input terminal
I
Rotary encoder input terminal
I
O Power supply control output of AD conversion
I Power selection initialise
O Illumination power supply control output
I Input to detect rotation of reel table
I
I
Tape position signal detection input
I
I
O Loading motor control output (to a direction of loading)
O Loading motor control output (to a direction of ejection)
TAPE power supply control output
O
When 'on' is output, "H" is output, otherwise when 'off' is output, "L" is output.
O Capstan motor control signal output terminal of TAPE
O System power supply control output
O FM power supply control output terminal
O TUNER power supply control output terminal
– Ground
O Not used
– Not used (Power supply for DA converter)
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Function
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