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Pin No.
Signal Name
1
A.DEF(H)
2
CKILLER DET(L)
3
AFC S
4
SLP(H)
5
CPB
6
N/S/T2
7
S-PHOTO
8
T-PHOTO
9
TRACKING_ENVE
10
AV1_8IN
11
CURRENT_LIMIT
12
F ADJUST
13
ART.V/H/N
14
IR
15
AVPB-H(L)
16
AVPB-M(H)
17
EEP_WR
18
VIDEO.H.SW
19
A.H.SW
20
PROG ON(H)
21
B/W(H)
22
NC
23
ABS_NORM(H)
24
V EE(L)
25
D.FM.REC(H)
26
D.A.REC(H)
27
BIAS(H)
28
FM.MUTE(H)
29
PAL-I/BG/DK(SYS4)
30
S-VHS DET(H)
I/O
O Output signal for audio defea and decoder IC reset.
Detection of COLOR KILLER active.
I
I
S curve input from tuner.
Output signal depens on tape speed.
O
(During N10H or P9H: High)
(Except N10H and P9H: Low)
PB input from AV2.
*3.21v ~
:High
I
*1.23v ~ 3.21v
:Middle
*
~ 1.23v
: Low
Normal/Service/Test2/Test3 select.
* 4.0v ~
:NORMAL mode
I
* 2.5v ~ 4.0v :SERVICE mode
* 1.0v ~ 2.5v :TEST2 mode
* 0v ~ 1.0v
:No define (spare)
Photo sensor input from supply side.
I
(more than 2.6V: black / less than 2.4V: white)
Photo sensor input from take up side.
I
(more than 2.6V: black / less than 2.4V: white)
I
Video envelope input for auto tracking and CVC.
PB input from IC3001.
* 3.21v ~
: High
I
* 1.23v ~ 3.21v: Middle
*
~ 1.23v: Low
O Current limit for capstan driver.
O Analogue voltage output for HEAD frequency response adjustment.
O Artificial V synchronization signal.
I
Interrupt input from IR sensor.
Output signal for AV2-PB "H". (2 Scart Model)
Output signal for AV1-PB "H". (1 Scart Model)
O
* H/M/L is output to 21pin-(8) when both terminals are set as follows.
Pin 8
High
O
Middle
Low
Write enable for EEPROM.
O
*H:READ only L:Write
O Output signal for video HEAD switch.
O Output signal for FM audio HEAD switch.
I/O control to switch IIC bus for LW-programmer.
O
H:IIC bus is connected to AV2.
L:IIC bus is not connected to AV2.
O Output signal for B/W mode.
O Non connect. (Low Fix)
Input signal for FM audio enverope level detection.
I
(Also serves that the Automatic Adjustment is completed)
O Output signal for switch between EE and VV.
O Control signal for FM audio recording current)
O Control signal for normal audio recording current.
Control signal for FM audio recording current.
O
D.A.REC(H)
BIAS(H)
O Output signal for audio mute control.
O Output terminal for broad cast system to control the video circuit.
I
Detection between SVHS and VHS.
Describe
Setting
AVPB-H(L) AVPBM-(H)
L
Hi-z
H
Hi-z
H
L
140ms
140ms
P-OFF P-SAVE P-FAIL Reset
Low
Low
Low
Low
In
In
In
In
In
In
In
In
Low
Low
Low
Low
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
In
In
In
In
High
High
Low
High
Low
Low
Low
Low
High
High
Low
High
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
In
In
In
In
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
Low
High
High
Low
High
Not fix
Low
Low
Low
In
In
In
In
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