Sony HCD-GN999D / MHC-GN999D / MHC-GN999DS Service Manual ▷ View online
69
HCD-GN999D
IC401 M30622MEP-A50FPU0 (SYSTEM CONTROL) (MAIN BOARD)
Pin No.
Pin Name
I/O
Pin Description
1
SW CHANNEL
O
Signal path selection signal for sub woofer channel
SELECT
(“L”: LFE, “H”: Subwoofer out from M61537)
2
SURR CHANNEL
O
Signal path selection signal for surround channel
SELECT
(“L”: SL/FR (MTK), “H”: Tone out from M61537)
3
SM LATCH 3
O
Serial data latch pulse output to the S-Master Processor
4
SIRCS
I
Remote control signal input
5
NO USE
I
Not used (Open)
6
NO USE
I
Not used (Open)
7
NO USE
I
Not used (Open)
8
BYTE
—
Ground terminal
9
CNVSS
—
Ground terminal
10
XC IN
I
Sub system clock input (32.768 kHz)
11
XC OUT
O
Sub system clock output (32.768 kHz)
12
RESET
I
System reset signal input from the reset signal IC “L”: reset After the power
supply rises, “L” is input for several hundreds msec and then change to “H”.
13
X OUT
O
Main system clock output (5 MHz)
14
VSS
—
Ground terminal
15
X IN
I
Main system clock input (5 MHz)
16
VCC
—
Power supply terminal (+3.3 V)
17
NMI
I
Non-maskable interrupt input
18
NO USE
I
Not used (Connect to ground)
19
NO USE
I
Not used (Open)
20
AC CUT
I
AC off detection signal input from the reset signal IC (“L”: AC Cut detected)
21
VIDEO MUTE
O
Video muting on/off control signal output (“L”: muting on)
22
VIDEO OUT SW
O
Composite video output switching output control
(“L”: DVD VIDEO output, “H”: VIDEO VIDEO input)
23
MIC DETECT
I
Microphone connection detection signal input (“L”: headphone connected)
24
KRMOD
I
Karaoke Mode detection signal input
25
MIC STATUS
O
Microphone status output to DVD Motherboard
(“L”: Microphone is not connected, “H”: Microphone is connected)
26
MTK RESET
O
Reset signal output to DVD Motherboard (“L”: reset)
27
MTK XIFCS
I
Communication Initialization Request Acknowledgement Signal from DVD
Motherboard
28
MTK BUSY
O
Communication Initialization Request Signal to DVD Motherboard
29
IIC CLK
I/O
Clock signal for IIC communication between the microcomputer and the IIC checker
30
IIC DATA
I/O
Data signal for IIC communication between the microcomputer and the IIC checker
31
MTK SIO
O
Serial data output signal to DVD Motherboard
32
MTK SOD
I
Serial data input signal from DVD Motherboard
33
MTK CLK
I
Serial data clock signal from DVD Motherboard
34
DVD A MUTE
O
DVD analog signal muting on/off control signal output (“H”: muting on)
35
MTK POWER
O
Power supply control signal to DVD Motherboard (“H”: Power supply on)
36
ST CE
O
PLL chip enable signal output to the tuner unit
37
MC DIN
I
PLL serial data input from the tuner unit
38
ST CLK
O
PLL serial data transfer clock signal output to the tuner unit
39
MC DOUT
O
PLL serial data output to the tuner unit
40
TUNED
I
Tuning detection signal input from the tuner unit (“L”: tuned)
41
OPEN SW
I
Eject detection signal input from CDM
42
TBL ADDRESS SW
I
Disc tray position detection signal input from CDM
43
E3
I
Disc tray status detection signal input from CDM
44
E2
I
Disc tray status detection signal input from CDM
70
HCD-GN999D
Pin No.
Pin Name
I/O
Pin Description
45
E1
I
Disc tray status detection signal input from CDM
46
TM F
O
CDM turning motor control signal output
47
TM R
O
CDM turning motor control signal output
48
LM F
O
CDM loading motor control signal output
49
LM R
O
CDM loading motor control signal output
50
LED ILLUMINATION 1
O
Dynamic LED drive signal output to the ILLUMINATION 1st indicator and
2nd indicator (“H”: LED on)
51
LED ILLUMINATION 2
O
Dynamic LED drive signal output to the ILLUMINATION 3rd indicator and
4th indicator (“H”: LED on)
52
LED ILLUMINATION 3
O
Dynamic LED drive signal output to the ILLUMINATION 5th indicator and
6th indicator (“H”: LED on)
53
LED ILLUMINATION CTRL
O
Dynamic LED drive select signal output
54
VOL A
I
Jog dial pulse input from the VOLUME rotary encoder (A phase input)
55
VOL B
I
Jog dial pulse input from the VOLUME rotary encoder (B phase input)
56
STBY LED
O
LED drive signal output of POWER indicator “H”: LED is turned on
57
FL DRIVER DATA
O
Serial data output signal to FL Driver, NJU3427
58
FL DRIVER CLK
O
Serial data clock signal to FL Driver, NJU3427
59
FL DRIVER RESET
O
Serial data reset signal to FL Driver, NJU3427
60
FL DRIVER CS
O
Serial data chip select signal to FL Driver, NJU3427
61
SW LED
O
LED drive signal output of SUB WOOFER ON indicator (“H”: LED ON)
62
VCC
—
Power supply terminal (+3.3 V)
63
A HALF
I
Deck A cassette detection signal input “H”: cassette detected
64
VSS
—
Ground terminal
65
SM RESET
O
Reset signal output to the S-Master Power IC
66
IO EXP DATA OUT
O
Serial data output signal to I/O expander, BH2210V
67
NO USE
I
Not used (Connect to ground)
68
IO EXP RST
O
Reset signal output to the I/O expander, BH2210V
69
IO EXP CLK
O
Serial data latch signal to I/O expander, BH2210V
70
IO EXP LAT
O
Serial data clock signal to I/O expander, BH2210V
71
NO USE
I
Not used (Connect to ground)
72
SM SD
I
Shutdown (protector) detection signal from the S-Master power IC
73
DISPLAY KEY
I
DISPLAY key press detection signal (Interrupt input)
74
POWER KEY
I
POWER key press detection signal (Interrupt input)
75
NO USE
I
Not used (Connect to ground)
76
SM LATCH 1
O
Serial data latch pulse output to the S-Master Processor
77
SM CLK
O
Serial data transfer clock signal to the S-Master Processor IC (CXD9843)
78
SM DATA
O
Serial data output signal to the S-Master Processor IC (CXD9843)
79
SM LATCH 2
O
Serial data latch pulse output to the S-Master Processor
80
NO USE
I
Not used (Connect to ground)
81
NO USE
I
Not used (Connect to ground)
82
PWMMODE SEL
I
PWM Mode selection signal ( “L”: PWM Mode 3, “H”: PWM Mode 4)
83
M61537 DATA
O
Serial data output to audio signal processor, M61537FP
84
M61537 CLK
O
Serial data transfer clock signal output to audio signal processor, M61537FP
85
HP DET
I
Headphone connection detection signal input (“H”: headphone connected)
86
HP MUTE
O
Headphone muting on/off control signal (“H”: muting on)
87
NO USE
I
Not used (Connect to ground)
88
VACS IN
I
VACS level detection signal
89
A SHUT
I
Shut off detection signal input from deck A side reel pulse detector (A/D input)
90
B SHUT
I
Shut off detection signal input from deck B side reel pulse detector (A/D input)
71
HCD-GN999D
Pin No.
Pin Name
I/O
Pin Description
91
B HALF
I
Deck B cassette detection and forward side recording tab detection signal input
(A/D input)
92
MODEL IN
I
Model setting (A/D input)
93
DEST IN
I
Destination setting (A/D input)
94
AD KEY 3
I
Key signal input (A/D input)
95
AD KEY 2
I
Key signal input (A/D input)
96
AVSS
—
Ground terminal (for A/D conversion)
97
AD KEY 1
I
Key signal input (A/D input)
98
VREF
I
A/D Converter reference voltage input terminal (+3.3 V)
99
AVCC
—
Power supply terminal (+3.3 V) (for A/D conversion)
100
MAIN ON/OFF
O
Main power on/off control signal output “H”: power on
72
HCD-GN999D
Pin No.
Pin Name
I/O
Description
1
CTLIO
I
Input/output mode select port (Fixed at "H")
2
RESET
I
Reset signal input
3
CLK
I
Serial data clock input
4
LATCH
I
Serial data latch input
5
TC-MUTE
O
Tape playback muting on/off control signal output ( "H":muting on)
6
NO-USE
O
Not used (Open)
7
REC-MUTE
O
Recording muting on/off control signal output ("H":muting on)
8
NO-USE
O
Not used (Open)
9
SM-NSP-MUTING
O
S-Master Processor IC PWM 50% duty muting on/off control signal output
("L":muting on)
10
SM-SOFT-MUTING
O
S-Master Processor IC Soft muting on/off control signal output ("L":muting on)
11
NO-USE
O
Not used (Open)
12
SM-INIT
O
Initialization signal output to the S-Master Processor IC
13
LATCHO
O
Serial data latch output signal (Not used) (Open)
14
CLKO
O
Serial data clock output signal (Not used) (Open)
15
DO1
O
Serial data output signal 1 (Not used) (Open)
16
DI2
I
Serial data input signal 2 (Not used) (Open)
17
A-TRIG
O
Deck A side trigger plunger drive signal output ("H":plunger on)
18
CAPM-CNT
O
Capstan motor drive signal output
19
B-TRIG
O
Deck B side trigger plunger drive signal output ("H":plunger on)
20
REC-BIAS
O
Recording bias on/off control signal output ("H":bias on)
21
TC-RELAY
O
Recording/playback selection signal output ("H":recording "L":playback)
22
ADC-RESET
O
Power down control signal to Analog to Digital converter, PCM1803 ("L": Power down)
23
NO-USE
O
Not used (Open)
24
FAN-CTRL
O
Fan driving signal output ("L": Fan on)
25
DO2
O
Serial data output signal 2 (Not used) (Open)
26
DI1
I
Serial data input signal 1
27
VSS
—
Ground terminal
28
VDD
—
Power supply terminal (+3.3V)
• IC403 BH2210FV-E2 (SIGNAL IN/OUT CONTROL) (MAIN BOARD)
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