Sony XR-5790R, Service Manual

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Pin No. Pin Name I/O Function
67 AF SEK O AF seek control signal output terminal Not used (open)
68 COLOR I Setting terminal for the illumination color “L”: amber, “H”: green Not used (open)
69 NOSESW I Detects the removal of the attaching and removing type front panel block “L”: attaching
70 ST IN I/O
71 SD IN I
Station detector detect input from the FM/AM tuner unit (TU1)
Stop level for SEEK, BTM, etc. is determined SD is present at input of “H”
72 REL T I Reel table rotation detect signal input from the take-up and supply reel sensor
73 POS3 I
74 POS2 I
75 POS1 I
76 POS0 I
77 PW SEL I
Power select switch (S801) input terminal
“L”: position A (halt mode), “H”: position B (operation mode)
78 TELEMUTE I
Telephone muting signal input terminal
At input of “L”, the signal is attenuated by –20 dB Used for XR-5800R only
79 TEST I Setting terminal for the test mode “L”: test mode (normally fixed at “H”)
80 ILLIN I Not used (fixed at “L”)
Tape position detect input from tape operation switch on the mechanism block
Input of FM stereo detection signal from FM/AM tuner unit (TU1), and output of forced
monaural control signal to FM/AM tuner unit (TU1) (Commonly used for stereo display input
and forced monaural output)
FM stereo detection at input of “L”, forced monaural at output of “L”
*1 loading/tape operation motor control
MODE
TERMINAL
LMLOD (pin
@™
) “L” “H” “L” “H”
LMEJ (pin
@£
) “L” “L” “H” “H”
STOP
LOADING/
FORWARD
EJECT/
REVERSE
BRAKE