XR-C6090R, XR-C6100R - Sony Car Audio Service Manual (repair manual). Page 26

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66

MUT

O

Line muting control signal output terminal    “H”: line muting on

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-C6100R 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