Sony HTC-V5550 Service Manual page 42

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• VIDEO BOARD IC502 M30620MC-302FP (CD MECHSNIAM CONTROLLER)
Pin No. Pin Name
1 SENSE
2 SENSE CLK
3 DSP DATA
4 DSP LATCH
5 DSP CLK
6 TSENS
7 REMOTE IN
8 BYTE
9 VSS
10 DSP MUTE
11 CTRL1
12 XRESET
13 XOUT
14 VSS
15 XIN
16 VCC
17 NMI
18 SCOR
19 ITOU
TE
L 13942296513
20 CL680 HINT
21 CL680 SEL
22 DF LATCH
23 CL680 HRDY
24 CL680 RESET
25 JOG1
26 JOG2
27 CTRL2
28 LDON
RXD
29
CLK
TXD
30
DATA
31 DATA1O
32 DATA1I
33 CLK1
34 SHARPNESS
35 XVLEVEL. DOWN
36 SUBQ DATA
37 SUBQ CLK
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38 P.ON
39 BUS XRDY
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I/O
I Internal status (SENSE) signal input from the CXD2545Q (IC101)
O Sense serial data reading clock signal output to the CXD2545Q (IC101)
Serial data output to the CXD2545Q (IC101)
O
O Serial data latch pulse output to the CXD2545Q (IC101)
O Serial data transfer clock signal output to the CXD2545Q (IC101)
I Disc tray status detection signal input terminal Not used (open)
I Remote control signal input terminal Not used (open)
External data bus line byte selection signal input "L": 16 bit, "H": 8 bit (fixed at "L")
I
— Ground terminal
O Muting on/off control signal output to the CXD2545Q (IC101) "H": muting on
O RF equalizer selection signal output terminal "L": double speed
Reset signal input from the system controller (IC501) "L": reset
I
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
O Main system clock output terminal (10 MHz)
— Ground terminal
I Main system clock input terminal (10 MHz)
— Power supply terminal (+5V)
Non-maskable interrupt input terminal (fixed at "H" in this set)
I
I Subcode sync (S0+S1) detection signal input from the CXD2545Q (IC101)
Former type: UART communication data input from the expansion (IC402)
I
New type: Not used (open)
I Interrupt request signal input from the MPEG video/audio decoder (IC505)
O Command selection signal output to the MPEG video/audio decoder (IC505)
O Serial data latch pulse output to the D/A converter (IC509) "L" active
I Ready status detection signal input from the MPEG video/audio decoder (IC505)
O Reset signal output to the MPEG video/audio decoder (IC505) "L": reset
I Rotary encoder jog dial pulse input terminal Not used (fixed at "H")
I Rotary encoder jog dial pulse input terminal Not used (fixed at "H")
O RF equalizer selection signal output terminal "H": double speed
O Laser on/off selection signal output to the CXA1821M (IC103) "H": laser on
I Former type: Communication data receive input from the expansion (IC402)
Newtype:Communication data reading clock signal input or transfer clock signal output with the
I/O
system controller (IC501) and fluorescent indicator tube driver (IC601)
O Former type: Communication data transmit output to the expansion (IC402)
Newtype:Communication data bus with the systemcontroller (IC501) and fluorescent indicator
I/O
tube driver (IC601)
O Serial data output to the MPEG video/audio decoder (IC505) and D/A converter (IC509)
I Serial data input from the MPEG video/audio decoder (IC505)
Serial data transfer clock signal output to the MPEG video/audio decoder (IC505) and D/A
O
converter (IC509)
O Sharpness control signal output of the video signal (Y signal) "H" active ("L": normal)
— Not used (open)
I Sub-code Q data input from the CXD2545Q (IC101)
O Sub-code Q data reading clock signal output to the CXD2545Q (IC101)
O Power on/off control signal output terminal Not used (open)
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I Ready signal input terminal Not used (fixed at "H")
i
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