Sony HCD-FL3 Service Manual page 76

HCD-FL3
Pin No. Pin Name
43 XRST
44 V-MUTE
45 CD-MUTE
46 NO-USE
VOLUME A,
47, 48
VOLUME B
49 A PLAY
50 B PLAY
51 NO-USE
52 RDS-DATA
53 ST MUTE
54 STEREO
55 TUNED
56 ST CE
57 ST DOUT
58 ST DIN
59 ST CLK
60 LINE MUTE
61 DIR-CS
62 VCC
63 SOFT-TEST
64 VSS
65 DIR-RX
66 DAC-LAT
67 DSP-ACK
68 DSP-CS
69 DSP-DECODE
70 BTL 2.1CH D
71 BTL 2.1CH C
72 BTL 2.1CH B
73 DISPLAY KEY
74 POWER KEY
75 DIR-UNLOCK
76 BTL 2.1CH A
77 PROTECT
78
FAN-CTRL
79 CD-POWER
80 STK-MUTE
81 BIAS
82 TC-RELAY
83 STBY-RELAY
84 REC-MUTE
85 TC-MUTE
86 PB-A/B
87 EQ-H/N
88 ALC
76
I/O
O Reset signal output to the digital signal processor and motor/coil driver " L " : reset
O
Video muting on/off control signal output terminal " L " : muting on Not used
O
CD analog signal muting on/off control signal output " H " : muting on
—
Not used
I
Rotary encoder pulse input terminal
I
Deck-A play detection signal input terminal " H " : deck-A play
I Deck-B play detection signal input terminal " H " : deck-B play
—
Not used
I Serial data input terminal Not used
O Tuner muting on/off control signal output to the FM/AM tuner unit
I FM stereo detection signal input from the tuner unit " L " : stereo
I
Tuning detection signal input from the tuner unit " L " : tuned
O PLL serial chip enable signal output to the tuner unit
O
PLL serial data output to the tuner unit
I PLL serial data input from the tuner unit
O PLL serial data transfer clock signal output to the tuner unit
O
Line muting on/off control signal output " H " : muting on
O
Chip enable signal output to the digital audio interface receiver
— Power supply terminal (+3.3V)
O
Output terminal for the software test
—
Ground terminal
I Read data input from the digital audio interface receiver
O
Serial data latch pulse signal output to the D/A converter
I Acknowledge signal input from the audio digital signal processor
O Chip select signal output to the audio digital signal processor
I Decode signal input from the audio digital signal processor
O
BTL 2.1ch switching signal output terminal
O
BTL 2.1ch switching signal output terminal
O
BTL 2.1ch switching signal output terminal
I Key input terminal (A/D input)
I Key input terminal (A/D input)
I PLL lock error and data error flag input from the digital audio interface receiver
O
BTL 2.1ch switching signal output terminal
O Speaker output over load detection signal input " L " : over load
O Fan motor drive signal output
O
Power on/off control signal output for the CD section " H " : power on
O
Power amplifier on/off control signal output " L " : standby mode, " H " : power amplifier on
O Recording bias on/off control signal output " H " : bias on
O
Recording/playback selection signal output " L " : playback, " H " : recording
O
Main power on/off control signal output " H " : power on
O
Recording muting on/off selection signal output terminal " L " : muting on
O Playback muting on/off control signal output " H " : muting on
O
Deck-A/B selection signal output " L " : deck-B, " H " : deck-A
O
Normal/high speed selection signal output " L " : normal speed, " H " : high speed
O
Automatic limiter control signal output " H " : limiter on
Description