Panasonic NV-SJ400A, Service Manual

Page: 47 / 71

Function Pin No. In/Out Port Name
Normal/Service/Test2/Test mode selection.
This port receives less than 2.4V when Take-up photo sensor detects the tape beginning.
This port receives less than 2.4V when Supply photo sensor detects the tape end.
Tuner S curve input.
Playback envelope input for auto tracking adjustment.
Mechanism position detection input.
EJECT
CASSETTE DOWN
REV,REV SLOW
MID(LOADING/UNLOADING)
PLAY/REC,STILL/PAUSE,CUE,FWD SLOW,STOP3*1
STOP
FF/REW
INTERMEDIATE
(*1) The Pinch Roller is on the Capstan motor shaft.
This port receives low while the cassette tape with safety tab is inserted.
Not used
FIP on/off control during power off.
FIP off:High
FIP on:Low
Power on/off control.
Not Used
Rotary switching signal output.
Head amp switching signal output.
1. 4 Head model
LP/EP:High
SP:Low
2. 2 Head model
Low
P.SW 1 Position(Mode) Name
0
More than 4.0V
2.5V - 4.0V
1.0V - 2.5V
This port receives the playback envelope signal level to select the video head in special playback
mode.
Less than 1.0V
Normal
Service
Test 2
Test
P.SW 2
1
1
0
MODE
96
97
93
86
87
88
89
90
92
95
94
85
S-PHOT
T.S.CURVE
I NORM/SERV/T2/TEST
I TRACKING ENVE
I POS SW1
N.C.
POWER SAVE(H)
POWER OFF(H)
O
100
SLOW MODE (H)
ENVE SELECT I
98 O ROTARY SW
H.A.SW O 99
INPUT VOLTAGE
T-PHOT
S.TAB(L)
POS SW3
I
I
I
O
O
I
I
I
91 I POS SW2
P.SW 3
0
0
0
1
1
0
0
1
1
0
0
1
1
1
0
1
1
0
1
0