Sony HCD-GRX50 / HCD-R770 / HCD-RXD7 / MHC-GRX50 / MHC-R770 / MHC-RXD7 Service Manual ▷ View online
– 67 –
7-25.
IC PIN FUNCTION DESCRIPTION
•
MAIN BOARD IC501 M30622MA-A01FP (SYSTEM CONTROLLER (CD MECHANISM CONTROL))
Pin No.
Pin Name
I/O
Function
1
STK-MUTE
O
Power amplifier on/off selection signal output terminal “L”: standby mode, “H”: on
2
POWER
O
Power on/off control signal output for the audio system (+5V) and deck, panel, audio system
(+7V) “L”: standby mode, “H”: power on
(+7V) “L”: standby mode, “H”: power on
3
F-RELAY
O
Relay drive signal output for the speaker protect “H”: relay on
4
R-RELAY
O
Relay drive signal output for the speaker protect “H”: relay on Not used (open)
5
CD-POWER
O
Power on/off control signal output for the CD mechanism deck section
“L”: standby mode, “H”: power on
“L”: standby mode, “H”: power on
6
LINE-MUTE
O
Line muting on/off control signal output terminal “L”: muting on
7
DBFB-H/L
O
DBFB normal/high selection signal output to the M62493FP (IC101)
“L”: DBFB high, “H”: DBFB low
“L”: DBFB high, “H”: DBFB low
8
BYTE
I
External data bus line byte selection signal input terminal Fixed at “L” in this set
9
CNVSS
—
Ground terminal
10
XC-IN
I
Sub system clock input terminal (32.768 kHz)
11
XC-OUT
O
Sub system clock output terminal (32.768 kHz)
12
RESET
I
System reset signal input from the reset signal generator (IC502) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
13
X-OUT
O
Main system clock output terminal (16 MHz)
14
VSS
—
Ground terminal
15
X-IN
I
Main system clock input terminal (16 MHz)
16
VCC
—
Power supply terminal (+5V)
17
NMI
I
Non-maskable interrupt input terminal Fixed at “H” in this set
18
WAKE UP
I
Wakeup control signal input from the fluorescent indicator tube driver (IC601) “H” active
19
SCOR
I
Subcode sync (S0+S1) detection signal input from the CXD2587Q (IC101) on the CD block
20
RDS-INT
I
Serial data transfer clock signal input from the RDS decoder on FM/AM tuner unit
Used for the HCD-R770 and HCD-RXD7: AEP models
Used for the HCD-R770 and HCD-RXD7: AEP models
21
RDS-DATA
I
Serial data input from the RDS decoder on FM/AM tuner unit
Used for the HCD-R770 and HCD-RXD7: AEP models
Used for the HCD-R770 and HCD-RXD7: AEP models
22
AC-CUT
I
AC off detection signal input from the reset signal generator (IC502) “L”: AC cut checked
23
PL-CLK
O
Serial data transfer clock signal output to the pro-logic circuit Not used (open)
24
PL-DATA
O
Serial data output to the pro-logic circuit Not used (open)
25
PL-LAT
O
Serial data latch pulse output to the pro-logic circuit Not used (open)
26
TIMER LED
O
LED drive signal output of the TIMER SELECT indicator (D632) “H”: LED on
27
PROTECTOR
I
Protect on/off detection signal input from the speaker protect circuit
“L”: protect on, “H”: protect off
“L”: protect on, “H”: protect off
28
V MUTE
O
Muting on/off control signal output terminal “L”: muting off Not used (open)
29
IIC-CLK
I/O
Communication data reading clock signal input or transfer clock signal output with the fluo-
rescent indicator tube driver (IC601)
rescent indicator tube driver (IC601)
30
IIC-DATA
I/O
Communication data bus with the fluorescent indicator tube driver (IC601)
31
NCO
O
Not used (open)
32
SQ-DATA
I
Subcode Q data input from the CXD2587Q (IC101) on the CD block
33
SQ-CLK
O
Subcode Q data reading clock signal output to the CXD2587Q (IC101) on the CD block
34
SW MODE
O
Not used (open)
35
CD-DATA
O
Serial data output to the CXD2587Q (IC101) on the CD block
36
RY-SW
I
Connection detect signal input of the headphone jack (J701)
“L”: no connected, “H”: headphone connected
“L”: no connected, “H”: headphone connected
37
CD-CLK
O
Serial data transfer clock signal output to the CXD2587Q (IC101) on the CD block
38
493-LATCH
O
Serial data latch pulse output to the M62493FP (IC101)
– 68 –
Pin No.
Pin Name
I/O
Function
39
STBY LED
O
LED drive signal output of the I/
u indicator (D754) “H”: LED on (standby mode)
40
VC L+R/L–R
O
Virtual cinema L+R/L–R selection signal output terminal Not used (open)
41
VC BYPASS
O
Virtual cinema bypass control signal output terminal Not used (open)
42
FL SW
O
Filament on/off selection signal output for the fluorescent indicator tube (FL601)
“L”: on, “H”: off Used for the HCD-R770 and HCD-RXD7 models
“L”: on, “H”: off Used for the HCD-R770 and HCD-RXD7 models
43
STBY RELAY
O
Main power on/off control signal output terminal “L”: standby mode, “H”: power on
Used for the HCD-R770 and HCD-RXD7 models
Used for the HCD-R770 and HCD-RXD7 models
44
BASS FREQ.
O
Sync bass frequency normal/high selection signal output to the M62493FP (IC101)
“L”: sync bass off (normal), “H”: sync bass high
“L”: sync bass off (normal), “H”: sync bass high
45
FUNC SEL1
O
Not used (open)
46
FUNC SEL0
O
Not used (open)
47
493-DATA
O
Serial data output to the M62493FP (IC101)
48
493-CLK
O
Serial data transfer clock signal output to the M62493FP (IC101)
49
ST-MUTE
O
Tuner muting control signal output to the FM/AM tuner unit “H”: muting on
50
STEREO
I
FM stereo detection signal input from the FM/AM tuner unit “L”: stereo
51
TUNED
I
Tuning detection signal input from the FM/AM tuner unit “L”: tuned
52
ST-CE
O
PLL chip enable signal output to the FM/AM tuner unit
53
ST-DOUT
O
PLL serial data output to the FM/AM tuner unit
54
ST-DIN
I
PLL serial data input from the FM/AM tuner unit
55
ST-CLK
O
PLL serial data transfer clock signal output to the FM/AM tuner unit
56
SENSE
I
Internal status detection monitor input from the CXD2587Q (IC101) on the CD block
57
HOLD
O
Laser power control signal output to the CXA2568M (IC103) on the CD block
58
XLT
O
Serial data latch pulse output to the CXD2587Q (IC101) on the CD block
59
XRST
O
Reset signal output to the CXD2587Q (IC101) and BA5974FP (IC102) on the CD block
“L”: reset
“L”: reset
60
DISC-SENS
I
Disc status detection signal input from the disc sensor (IC703)
61
TBL-SENS
I
Disc tray status detection signal input from the disc tray sensor (IC702)
62
VCC
—
Power supply terminal (+5V)
63
TBL-L
O
Motor drive signal output to the disc tray turn motor driver (IC701) “L” active *1
64
VSS
—
Ground terminal
65
TBL-R
O
Motor drive signal output to the disc tray turn motor driver (IC701) “L” active *1
66
LOAD-OUT
O
Motor drive signal output to the disc tray slide motor driver (IC801) “H” active *2
67
LOAD-IN
O
Motor drive signal output to the disc tray slide motor driver (IC801) “H” active *2
68 to 70
ENC3 to ENC1
I
Detection signal input from the disc tray address detect rotary encoder (S811)
71
OUT-OPEN
I
Detection signal input from the disc tray open/close detect switch (S801)
“L”: open, “H”: close
“L”: open, “H”: close
72
B-TRG
O
Deck-B side trigger plunger drive signal output terminal “H”: plunger on
73
A-TRG
O
Deck-A side trigger plunger drive signal output terminal “H”: plunger on
*1 Disc tray turn motor (M701) control
*2 Disc tray slide motor (M801) control
Stop
Counter-
clockwise
Clockwise
Brake
Stop
Table In
Table Out
Brake
TBL-L (pin ^£)
“H”
“L”
“H”
“L”
LOAD-OUT (pin ^§)
“L”
“L”
“H”
“H”
TBL-R (pin ^∞)
“H”
“H”
“L”
“L”
LOAD-IN (pin ^¶)
“L”
“H”
“L”
“H”
Terminal
Mode
Terminal
Mode
– 69 –
Pin No.
Pin Name
I/O
Function
74
CAPM-CNT2
O
Capstan motor (M1) drive signal output terminal “H” active *3
75
CAPM-CNT1
O
Capstan motor (M1) drive signal output terminal “H” active *3
76
CAP-M-H/L
O
High/normal speed selection signal output of the capstan motor (M1)
“L”: normal speed, “H”: high speed
“L”: normal speed, “H”: high speed
77
AMS-IN
I
Whether a music is present or not from HA12215F (IC301) is detected at automatic music sensor
“L”: music is present, “H”: music is not present
“L”: music is present, “H”: music is not present
78
TC-MUTE
O
Line muting on/off selection signal output to the HA12215F (IC301)
“L”: muting off, “H”: muting on
“L”: muting off, “H”: muting on
79
R/P-PASS
O
Recording/playback/pass selection signal output to the HA12215F (IC301)
“L”: recording mode, “H”: pass, “Hi-z”: playback mode
“L”: recording mode, “H”: pass, “Hi-z”: playback mode
80
NR-ON/OFF
O
Dolby NR on/off selection signal output to the HA12215F (IC301)
“L”: dolby off, “H”: dolby on
“L”: dolby off, “H”: dolby on
81
REC-MUTE
O
Recording muting on/off selection signal output to the HA12215F (IC301)
“L”: muting on, “H”: muting off
“L”: muting on, “H”: muting off
82
BIAS
O
Recording bias on/off selection signal output to the HA12215F (IC301)
“L”: bias off, “H”: bias on
“L”: bias off, “H”: bias on
83
EQ-H/N
O
Normal/high speed selection signal output to the HA12215F (IC301)
“L”: normal speed, “H”: high speed
“L”: normal speed, “H”: high speed
84
PB-A/B
O
Deck-A/B selection signal output to the HA12215F (IC301) “L”: deck-A, “H”: deck-B
85
ALC-ON/OFF
O
Automatic limiter control signal output to the HA12215F (IC301) “L”: limiter on
86
B-PLAY-SW
I
Detection input from the deck- B play detect switch (S1002) “H”: deck-B play
87
A-PLAY-SW
I
Detection input from the deck- A play detect switch (S1001) “H”: deck-A play
88
A-HALF
I
Detection input from the deck-A cassette detect switch (S1003)
“L”: cassette in, “H”: no cassette
“L”: cassette in, “H”: no cassette
89
B-HALF
I
Detection input from the deck-B half detect switch (S1006)
90
B-SHUT
I
Shut off detection signal input from the deck-B side reel pulse detector (IC1002)
91
A-SHUT
I
Shut off detection signal input from the deck-A side reel pulse detector (IC1001)
92
SOFT-TEST
O
Output terminal for the software test (open)
93
HEADPHONE
MUTE
O
Muting on/off control signal output terminal “L”: muting on Not used (open)
94
KEY/CD ADJ
I
Setting terminal for the CD adjustment mode Not used (open)
95
MODEL-IN
I
Destination setting terminal
96
AVSS
—
Ground terminal (for A/D conversion)
97
SPEC-IN
I
Setting terminal for the version
98
AVREF
I
Reference voltage (+5V) input terminal (for A/D conversion)
99
AVCC
—
Power supply terminal (+5V) (for A/D conversion)
100
TC-RELAY
O
Recording/playback select signal output to the REC/PB switch (IC602)
“L”: playback, “H”: recording
“L”: playback, “H”: recording
*3 Capstan motor (M1) control
Stop
Forward
Direction
Reverse
Direction
Brake
CAPM-CNT1 (pin &∞)
“L”
“L”
“H”
“H”
CAPM-CNT2 (pin &¢)
“L”
“H”
“L”
“H”
Terminal
Mode
– 70 –
•
PANEL
BOARD
Pin No.
Pin Name
I/O
Function
1
SIRCS
I
Remote control signal input from the remote control receiver (IC602)
2
JOG-A
I
Jog dial pulse input from the rotary encoder (S601 JOG) (A phase input)
3
LED SCK
O
Serial data transfer clock signal output to the LED driver (IC604)
4
LED LAT
O
Serial data latch pulse signal output to the LED driver (IC604)
5
LED DATA
O
Serial data output to the LED driver (IC604)
6
PAD LAT
O
Not used (open)
7
L SEL
O
LED selection signal output terminal
8
JOG-B
I
Jog dial pulse input from the rotary encoder (S601 JOG) (B phase input)
9
VOL-A
I
Jog dial pulse input from the rotary encoder (S602 VOLUME) (A phase input)
10
VOL-B
I
Jog dial pulse input from the rotary encoder (S602 VOLUME) (B phase input)
11
KEY0
I
Key input terminal (A/D input) (S625 to S630)
REC PAUSE/START, HI-DUB, CD SYNC, LOOP, DISPLAY, SPECTRUM ANALYZER keys
input
REC PAUSE/START, HI-DUB, CD SYNC, LOOP, DISPLAY, SPECTRUM ANALYZER keys
input
12
KEY1
I
Key input terminal (A/D input) (S611 to S621)
SYNC BASS, SYNC EQ, KARAOKE PON/MPX, NON-STOP, SURROUND, DBFB,
ENTER/NEXT, +
SYNC BASS, SYNC EQ, KARAOKE PON/MPX, NON-STOP, SURROUND, DBFB,
ENTER/NEXT, +
), – 0, GROOVE, FLASH keys input
13
KEY2
I
Key input terminal (A/D input) (S638 to S642 and S751 to S757)
TIMER SELECT, FILE SELECT, REPEAT STEREO/MONO, PLAY MODE/DOLBY NR,
EDIT/DIRECTION TUNER MEMORY, I/
TIMER SELECT, FILE SELECT, REPEAT STEREO/MONO, PLAY MODE/DOLBY NR,
EDIT/DIRECTION TUNER MEMORY, I/
u, (STANDBY) POWER SAVE DEMO, DISC 1/2/3,
DISC SKIP EX-CHANGE,
§ keys input
14
KEY3
I
Key input terminal (A/D input) (S643 to S651)
TUNER/BAND,
TUNER/BAND,
( P CD, p, ( TAPE B, 9 TAPE B, ( TAPE A, 9 TAPE A,
FUNCTION, CLOCK/TIMER SET keys input
15
GRAD L2
O
Not used (open)
16
S LOW FREQ
(BPF0)
I
Spectrum analyzer drive (super low frequency) signal input from the spectrum analyzer band-
pass filter (IC603) (for 40 Hz)
pass filter (IC603) (for 40 Hz)
17
BPF1
I
Spectrum analyzer drive (low frequency) signal input from the spectrum analyzer band-pass filter
(IC603) (for 100 Hz)
(IC603) (for 100 Hz)
18
BPF2
I
Spectrum analyzer drive (low and middle frequency) signal input from the spectrum analyzer
band-pass filter (IC603) (for 400 Hz)
band-pass filter (IC603) (for 400 Hz)
19
BPF3
I
Spectrum analyzer drive (middle and high frequency) signal input from the spectrum analyzer
band-pass filter (IC603) (for 2 kHz)
band-pass filter (IC603) (for 2 kHz)
20
BPF4
I
Spectrum analyzer drive (high frequency) signal input from the spectrum analyzer band-pass filter
(IC603) (for 6 kHz)
(IC603) (for 6 kHz)
21
ALL BAND
(L+R)
I
Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter (IC603)
(for VACS, non-stop signal)
(for VACS, non-stop signal)
22
WAKE UP
O
Wakeup control signal output to the system controller (IC501) “H” active
23
VSS
—
Ground terminal
24
VASS
—
Ground terminal (for A/D conversion)
25
VAREF
I
Reference voltage (+5V) input terminal (for A/D conversion)
26
VDD
—
Power supply terminal (+5V)
27 to 32
G18 to G13
O
Grid drive signal output to the fluorescent indicator tube (FL601)
33 to 40
G12 to G5
O
Grid drive signal output to the fluorescent indicator tube (FL601)
41
VDD
—
Power supply terminal (+5V)
42 to 44
G4 to G2
O
Grid drive signal output to the fluorescent indicator tube (FL601)
45
G1
O
Grid drive signal output to the fluorescent indicator tube (FL601)
46 to 67
S1 to S22
O
Segment drive signal output to the fluorescent indicator tube (FL601)
68
VKK
—
Power supply terminal (–30V) (for fluorescent indicator tube drive)
69
VDD
—
Power supply terminal (+5V)
•
PANEL BOARD IC601 TMP88CS76F-6004 (FLUORESCENT INDICATOR TUBE DRIVER, KEY CONTROL)
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