Sony D-V7000 Service Manual page 25

• MAIN BOARD IC701 MSM65354-412GS-BK4 (SYSTEM CONTROLLER, LCD DRIVER, KEY CONTROL)
Pin No. Pin Name
1 to 4 COM1 to COM4
5 to 11 SEG0 to SEG6
12 NC
13 to 18 SEG7 to SEG12
19 to 36 NC
37 AGND
38 DC CHK
39 DOOR OPEN
40 KEY IN1
41 KEY IN2
42 BATT CHK
43 NTSC/PAL
44 DCINJACK
45 MODE
46 VRH
47 AVDD
48 DBB CTL1
49 AU-MUTE
50 XAU-RESET
51 XV-RESET
52 HOLD
53 RESUME
54 XDSPLT
55 XDACLT
56 V-POWER
57 AU-POWER
58 ESP-POWER
59 TRVCTL
60 to 63 TRV3 to TRV0
64 XSOE
65 DSP-SUBQ
66 DSP-SBQCLK
67 REMOTE
68 DSP-DATA
69 DSP-SENS
70 DSP-CLK
71 DSP-SNSCLK
72 VDD
73 BEEP
74 C2PO
75 ESP-CLK
I/O
O Common drive signal output to the liquid crystal display (LCD401)
O
Segment drive signal output to the liquid crystal display (LCD401)
O
Not used (open)
O
Segment drive signal output to the liquid crystal display (LCD401)
O
Not used (open)
— Ground terminal (analog system)
I
DC in voltage detection input terminal (A/D input) Also used for DC IN detection
CD lid open/close detection switch (S401) input terminal
I
The stop status is reset with the falling edge of input signal
"H": CD lid open, "L": CD lid close
Key input terminal (A/D input)
I
RETURN, MENU –, PREV =, ^, NEXT +, MENU + keys input (S441 to S446)
I
Key input terminal (A/D input)
I
Battery voltage detection input terminal
I
Video system select switch (S703) input terminal "L": NTSC, "H": AUTO
I
DC IN 6V jack (J801) detection input terminal "L": plug in
I
Fixed at "L" in this set
I Reference voltage input terminal (+3.3V) (for A/D converter)
—
Power supply terminal (+3.3V) (analog system)
MEGA BASS on/off control signal output terminal
O
"L": MEGA BASS on (level-1 and level-2) Not used (open)
O
Analog line mute control signal output terminal "H": mute on
O
Reset signal output to the CXD2545Q (IC601) and headphone amplifier (IC360) "L": reset
Reset signal output to the MPEG audio/video decoder (IC901) and video encoder (IC920)
O
"L": reset
I HOLD switch (S701) input terminal "L": hold off, "H": hold on
I
RESUME switch (S702) input terminal "L": resume off, "H": resume on
O
Serial data latch pulse signal output to the CXD2545Q (IC601)
O
Serial data latch pulse signal output to the D/A converter (IC320)
O
Video CD system power supply on/off control signal output terminal "L": power on
O
Audio CD system power supply on/off control signal output terminal "L": power on
O Control signal output to the ESP (Electronic Shock Protection) circuit
O
Tracking gain control signal output terminal
O
Tracking balance control signal output terminal
O
Serial data output enable signal output terminal Not used (open)
I
Sub-code Q data signal input from the CXD2545Q (IC601)
O
Sub-code Q data reading clock signal output to the CXD2545Q (IC601)
I Sircs remote control signal input from the remote control receiver (IC401)
O
Serial data output to the CXD2545Q (IC601) and D/A converter (IC320)
I
Internal status (SENSE) signal input from the CXD2545Q (IC601)
O
Serial data transfer clock signal output to the CXD2545Q (IC601) and D/A converter (IC320)
O
Sense serial data reading clock signal output to the CXD2545Q (IC601)
—
Power supply terminal (+3.3V) (digital system)
O Beep sound drive signal output terminal
O
C2PO signal control output terminal "L": stop mode, "H": searching Not used
O
Serial data transfer clock signal output terminal Not used (open)
Function
p POWER OFF, SELECT keys input (S421 and S422)
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