Read Sony XR-CA440H Service Manual online
22
XR-CA440H
Pin No.
Pin Name
I/O
Description
45
VOLSO
O
Serial data output to the electrical volume
46
VOLCE
O
Chip enable signal output to the electrical volume “H” active
47
VOLCKO
O
Bus clock signal output to the electrical volume
48
AMPON
O
Standby on/off control signal output to the power amplifier
“L”: standby mode, “H”: amplifier on
“L”: standby mode, “H”: amplifier on
49
AMPATT
O
Muting on/off control signal output to the power amplifier “L”: muting on
50
ATT
O
Audio line muting on/off control signal output “H”: muting on
51
NCO
O
Not used
52
AMSON
O
Tape auto music sensor control signal output to the tape equalizer amplifier
“L”: auto music sensor on
“L”: auto music sensor on
53
N_ROUT
O
Forward/reverse control signal output to the tape equalizer amplifier
“L”: reverse direction, “H”: forward direction
“L”: reverse direction, “H”: forward direction
54
MTLON
O
METAL on/off control signal output to the tape equalizer amplifier “H”: METAL on
55
TAPATT
O
Tape muting on/off control signal output to the tape equalizer amplifier “H”: muting on
Active at ATA, FF/REW mode
Active at ATA, FF/REW mode
56
NCO
O
Not used
57
AMSIN
I
Whether a music is present or not from tape equalizer amplifier is detected at auto music sensor
“L”: music is present, “H”: music is not present
“L”: music is present, “H”: music is not present
58
NCO
O
Not used
59
VOLATT
O
Pre amplifier muting on/off control signal output terminal Not used
60 to 64
NCO
O
Not used
65
FLASH_W
I
Internal flash memory data write mode detection signal input terminal “L”: data write mode
Not used
Not used
66
TESTIN
I
Setting terminal for the test mode “L”: test mode, normally fixed at “H”
67
RCIN1
I
Rotary remote commander shift key input terminal “L”: shift key on
68
ST-IND
I/O
FM stereo broadcasting detection signal input from the tuner unit, or forced monaural control
signal output to the tuner unit
“L” is input in the FM stereo mode, or “L” is output in the forced monaural mode
signal output to the tuner unit
“L” is input in the FM stereo mode, or “L” is output in the forced monaural mode
69
SD
I
Station detector detection signal input from the tuner unit
Stop level for SEEK, BTM, etc. is determined SD is present at input of “H”
Stop level for SEEK, BTM, etc. is determined SD is present at input of “H”
70
PLLSI
I
PLL serial data input from the FM/AM PLL
71
PLLSO
O
PLL serial data output to the FM/AM PLL
72
PLLCKO
O
PLL serial data transfer clock signal output to the FM/AM PLL
73
PLLCE
O
PLL chip enable signal output to the FM/AM PLL “H” active
74, 75
NCO
O
Not used
76
COLSEL
I
Setting terminal for the illumination color “L”: amber, “H”: green (fixed at “L” in this set)
77 to 81
NCO
O
Not used
82
XKEYON
O
A/D converter power control signal output terminal
When the KEYACK (pin wh) that controls reference voltage power for key A/D conversion input
is active, “L” is output from this terminal to enable the input
When the KEYACK (pin wh) that controls reference voltage power for key A/D conversion input
is active, “L” is output from this terminal to enable the input
83
ILLON
O
Power on/off control signal output of the illumination LED and liquid crystal display driver
“H”: power on
“H”: power on
84
REL
I
Rotation detection signal input from supply reel sensor and take-up reel sensor on the mechanism
deck
deck
85
POS3
I
86
POS2
I
87
POS0
I
88
POS1
I
Tape position (EJECT/FF/REW/REV/
FWD mode) detect input from the tape
operation switch on the deck mechanism
FWD mode) detect input from the tape
operation switch on the deck mechanism
POS3: “L”: REV and EJECT mode, “H”: others mode
POS2: “L”: REW mode, “H”: others mode
POS0: “L”: EJECT mode, “H”: others mode
POS1: “L”: FF and FWD mode, “H”: others mode
POS2: “L”: REW mode, “H”: others mode
POS0: “L”: EJECT mode, “H”: others mode
POS1: “L”: FF and FWD mode, “H”: others mode
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