Sony KV-14FV1B Service Manual page 47

4-1. µ-COM PORT FUNCTION DESCRIPTION (MA10 BOARD IC001)
Pin No. Signal
1 S SEL F
2 S SEL R
3 ST
4 BIL
5 DGC SW
6 ST/ MONO
7 –
8 MAIN /SUB
9 F MONO
10 VM SW
11 GP A
12 GP B
13 GP C
14 ASURA CS
15 SLAVE RESE
16 J CLK
17 FACT
18 1TU /2TU
19 JUST CLOCK
20 SIRCS
21 HSYNC 1
22 HSYNC 0
23 SI
24 SO
25 SCK
26 Vss
27 B INT
28 X TAL
29 EXTAL
30 RESET
31 A MUTE
32 CLK OS
33 KEY2
34 KEY1
35 AFT1
36 AFT0
37 OVP
38 G SW
39 XLC
40 EXLC
41 OSD R
42 OSD G
43 OSD B
44 I
45 YS
46 YM
47 SDA1
48 SDA0
49 SCL1
50 SCL0
51 LED2
52 LED1
53 NS
54 VOL
55 MP
56 NC
57 Vdd
58 Vss
59 HPULSE
60 VPULSE
61 CRTPOW
62 VCRPOW
63 M SW
64 SP MUTE
INTERFACE, IC PIN FUNCTION DESCRIPTION
I/O
I S-INPUT SELECT (FRONT)
I S-INPUT SELECT (REAR)
I TU STEREO MODE
I TU BILINGUAL MODE
– DGC ON/OFF CONTROL
I SET MODE STEREO/MONO
–
O TU MAIN/SUB CONTROL
O TU FOCE MONO CONTROL
O VM ON/OFF CONTROL
I "REC PON" SW A
I "REC PON" SW B
I "REC PON" SW C
O CHIP SELECT FOR ASURA
O RESET FOR ASURA
O JUST CLOCK DISABLE ("H" : DISAB)
I FACTORY MODE
I SET MODE 1TU/2TU
I JUST CLOCK DET INPUT
I REMOCON SIGNAL IN
I H SYNC DET INPUT (REC)
I H SYNC DET INPUT (TV)
I SIGNAL DATA INPUT
O SIGNAL DATA OUTPUT
O SIGNAL CLOCK OUTPUT
–
I BUS INT
–
–
–
O AUDIO MUTE
O CHIP SELECT FOR RT CLOCK
I KEY SCAN 2
I KEY SCAN 1
I AFT DET 1
I AFT DET 0
I OVP DET
I "REC PON" SW
–
–
–
–
–
–
–
–
2
O 1 C BUS DATA FOR YCJ etc
2
O 1 C BUS DATA FOR NVM
2
O 1 C BUS CHECK FOR YCJ etc
2
O 1 C BUS CHECK FOR NVM
O POWER LED
O STBY LED
O NS COIL CONTROL (PWM)
O VOLUME CONTROL (PWM)
–
–
–
–
I
I
O CRT POWER ON
O VCR POWER ON
I MAIN SW
O SPEAKER MUTE
SECTION 4
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Function