Sony FST-ZX6 / FST-ZX8 / HCD-ZX6 / HCD-ZX8 / LBT-ZX6 / LBT-ZX8 Service Manual ▷ View online
61
HCD-ZX6/ZX8
Pin No.
Pin Name
I/O
Pin Description
44
OC SW1
I
Disc tray status detection signal input from CDM
45
CHK SW
I
Disc tray status detection signal input from CDM
46
OC SW2
I
Disc tray status detection signal input from CDM
47
TBL NEG
O
CDM turning motor control signal output
48
TBL POS
O
CDM turning motor control signal output
49
LOG NEG
O
CDM loading motor control signal output
50
LOG POS
O
CDM loading motor control signal output
51
A PLAY
I
Deck A playback detection signal input “H”: deck A play
52
A TRIG
O
Deck A side trigger plunger drive signal output “H”: plunger on
53
A HALF
I
Deck A cassette detection signal input “H”: cassette detected
54
CPM CNT2
O
Capstan motor drive signal output
55
REC A
I
Deck B cassette forward side recording tab detection signal input
56
B PLAY
I
Deck B playback detection signal input “H”: deck B play
57
B TRIG
O
Deck B side trigger plunger drive signal output “H”: plunger on
58
REC (REV)
I
Deck B cassette reverse side recording tab detection input
59
TC RELAY
O
Recording/playback selection signal output “H”: recording, “L”: playback
60
BIAS
O
Recording bias on/off control signal output “H”: bias on
61
AMS IN
I
Music detection signal input from automatic music sensor “L”: track playback,
“H”: playback of space between track. Use to detect track change.
62
VCC
—
Power supply pin (+3.3 V)
63
TC MUTE
O
Tape playback muting on/off control signal output “H”: muting on
64
VSS
—
Ground pin
65
AUDIO1 DATA
O
Serial data signal output to audio signal processor
66
AUDIO1 CLK
O
Serial data transfer clock signal output to audio signal processor
67
AUDIO2 DATA
O
Serial data signal output to 4-ch volume IC
68
AUDIO2 CLK
O
Serial data transfer clock signal output to 4-ch volume IC
69
ANALOG IN MUTE
O
Soft test signal output Not used in this set. (Open)
70
VIDEO OUT
O
Not used in this set. (Open)
71
C RELAY
I
Not used in this set. (Open)
72
REAR RELAY
O
Relay drive signal output for the surround speakers “H”: relay on
73
DISPLAY KEY
I
DISPLAY key press detection signal input (Interrupt input)
74
POWER KEY
I
POWER key press detection signal input (Interrupt input)
75
GC RESET
O
Reset signal output to display control IC “L”: reset
76
STBY LED
O
LED drive signal output of POWER indicator “H”: LED on
77
HP DET
I
Headphone connection detection signal input “H”: headphone connected
78
FR DET
O
Relay drive signal output for the front speakers “H”: relay on
79
HP MUTE
O
Headphone muting on/off control signal output “L”: muting on
80
STK MUTE
O
Power amplifier and sub woofer amplifier on/off control signal output
“H”: amplifier on
81
PROTECT
I
Speaker protect detection signal input from speaker protect circuit
“L”: protector on
82
ST CLK
O
PLL serial data transfer clock signal output to the tuner unit
83
ST DIN
I
PLL serial data signal input from the tuner unit
84
ST DOUT
O
PLL serial data signal output to the tuner unit
85
ST CE
O
PLL chip enable signal output to the tuner unit
86
TUNED
I
Tuning detection signal input from the tuner unit “L”: tuned
87
STEREO
I
FM stereo detection signal input from the tuner unit “L”: stereo
88
ST MUTE
O
Tuner muting on/off control signal output “H”: muting on
62
HCD-ZX6/ZX8
Pin No.
Pin Name
I/O
Pin Description
89
A SHUT
I
Shut off detection signal input from deck A side reel pulse detection (A/D input)
90
B SHUT
I
Shut off detection signal input from deck A side reel pulse detection (A/D input)
91
B HALF
I
Deck B cassette detection signal input “L”: cassette detected
92
MODEL IN
I
Model setting pin (A/D input)
93
DEST IN
I
Destination setting pin (A/D input)
94
I HOLD
I
Over voltage protection detection signal input “L”: over voltage detected
95
MIC DET
I
BPM value detection for high frequency pin (A/D input)
96
AVSS
—
Ground pin (for A/D conversion)
97
BPM DET LO
I
BPM value detection for high frequency pin (A/D input)
98
VREF
I
A/D converter reference voltage signal input (+3.3 V)
99
AVCC
—
Power supply pin (+3.3 V) (for A/D conversion)
100
MP3 REQ
I
Request signal input from MP3 decoder IC
63
HCD-ZX6/ZX8
• IC901 MB90M407PF-G-141-BNDE1 (SYSTEM CONTROL) (PANEL BOARD)
Pin No.
Pin Name
I/O
Pin Description
1 to 4
G4 to G1
O
Grid drive signal output to the fluorescent indicatore tube
5 to 10
SEG-1 to SEG-6
O
Segment drive signal output to the fluorescent indicatore tube
11
VSS-IO
—
Ground pin (for I/O port)
12 to 22
SEG-7 to SEG-17
O
Segment drive signal output to the fluorescent indicatore tube
23
VDD-FIP
—
Power supply pin (+3.3 V) (for fluorescent indicatore tube)
24 to 41
SEG-18 to SEG-35
O
Segment drive signal output to the fluorescent indicatore tube
42
VSS-IO
—
Ground pin (for I/O port)
43
SEG-36
O
Segment drive signal output to the fluorescent indicatore tube
44
TAPE A LED
O
Dynamic LED drive signal output of the TAPE A FWD PLAY indicator and TAPE
A REV PLAY indicator “H”: LED on
45
SPK MODE LED
O
Dynamic LED drive signal output of the X-ROUND indicator “H”: LED on
46
CD LED
O
Dynamic LED drive signal output of the CD PLAY PAUSE indicator “H”: LED on
47
GAME, REC LED
O
Dynamic LED drive signal output of the GAME indicator and REC PAUSE indicator
“H”: LED on
48
VKK
—
Power supply pin (–33 V) (for fluorescent indicator tube)
49
MD0
I
Setting pin for the CPU operational mode
50
MD1/VDD-VFT
I
Setting pin for the CPU operational mode
51
MD2
I
Setting pin for the CPU operational mode
52
VOL 1, 2
O
Dynamic LED drive signal output of the ILLUMINATION 1st indicator and 2nd
indicator “H”: LED on
53
VOL 3, 4
O
Dynamic LED drive signal output of the ILLUMINATION 3rd indicator and 4th
indicator “H”: LED on
54
VOL 5, 6
O
Dynamic LED drive signal output of the ILLUMINATION 5th indicator and 6th
indicator “H”: LED on
55
VOL 7, 8
O
Dynamic LED drive signal output of the ILLUMINATION 7th indicator and 8th
indicator “H”: LED on
56
VOL 9, 10
O
Dynamic LED drive signal output of the ILLUMINATION 9th indicator and 10th
indicator “H”: LED on
57
VOL 11, TUNER BAND
O
Dynamic LED drive signal output of the ILLUMINATION 11th indicator and TUNER
BAND indicator “H”: LED on
58
TAPE B LED
O
Dynamic LED drive signal output of the TAPE B FWD PLAY indicator and TAPE B
REV PLAY indicator “H”: LED on
Dynamic LED drive select signal output
“L”: LED line ILLUMINATION 1, 3, 5, 7, 9, 11, TAPE B REV PLAY, TAPE A REV
59
LED SELECT
O
PLAY, X-ROUND, CD PLAY PAUSE and GAME is selected.
“H”: LED line ILLUMINATION 2, 4, 6, 8, 10, TUNER/BAND, REC PAUSE/START,
TAPE B FWD PLAY and TAPE A FWD PLAY is selected.
60
I2C DAT
I/O
Clock signal for IIC communication between master control IC and display control IC
61
I2C CLK
I/O
Data signal for IIC communication between master control IC and display control IC
62
AVCC
—
Power supply pin (+3.3 V) (for A/D conversion)
63
AVSS
—
Ground pin (for A/D conversion)
64 to 69
KEY 0 to KEY 5
I
Key signal input (A/D input)
70 to 73
BPF1-F01 to BPF3-F04
I
Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter
(A/D input)
74
ALL-BAND
I
Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter
(A/D input)
64
HCD-ZX6/ZX8
Pin No.
Pin Name
I/O
Pin Description
75
JOG A
I
Jog dial pulse signal input from X-ROUND JOG rotary encoder (B phase input)
76
JOG B
I
Jog dial pulse signal input from X-ROUND JOG rotary encoder (A phase input)
77
RESET
I
System reset signal input from the master control IC “L”: reset
78
SOFT TEST
O
Output for the software test point
79
VOL B
I
Jog dial pulse signal input from VOLUME rotary encoder (B phase input)
80
VOL A
I
Jog dial pulse signal input from VOLUME rotary encoder (A phase input)
81
VSS-CPU
—
Ground pin (for CPU)
82
XOUT
O
System clock signal output (4 MHz)
83
XIN
I
System clock signal input (4 MHz)
84
VCC-CPU
—
Power supply pin (+3.3 V) (for CPU)
85
NO USE
—
Not used. (Fixed at “L” in this set.)
86 to 100
G19 to G5
O
Grid drive signal output to the fluorescent indicator tube
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