Service manual

1-12-3 T6450PIN
IC PIN FUNCTION DESCRIPTIONS
[ 14PV135/ (01, 07, 58), 14PV235/ (01, 07, 58), 14PV385/ (01, 07, 39) ]
Comparison Chart of Models and Marks
IC 201 (TV/VCR Micro Controller)
“H” ≥ 4.5V, “L” ≤ 1.0V
Model Mark
14PV135/07 E
14PV235/07 F
14PV385/07 G
14PV135/01 H
14PV235/01 I
14PV385/01 J
14PV135/58 K
14PV235/58 L
14PV385/39 M
Pin
No.
Mark
IN/
OUT
Signal
Name
Function
1
E,F,H
,I,K,L
-
NU Not Used
G,J,
M
IN
AFC2 AFC 2 of Tuner 2
2IN
P-SAFETY 2
Power Supply
Failure Detection 2
3IN
P-SAFETY 1
Power Supply
Failure Detection 1
4IN
END-SENS End-Sensor
5
IN AFC
Automatic
Frequency Control
Signal
6IN
V-ENV
Video Envelope
Input
7IN
KEY-1 Key 1 Input
8IN
KEY-2 Key 2 Input
9IN
LD-SW
Loading Switch
Input
10 IN
ST-SENS Start-Sensor
11 -
NU Not Used
12 -
NU Not Used
13
IN/
OUT
DV SYNC
Artificial V-Sync
Output
14 IN
REMOTE
Remote Signal
Input
15 OUT
C-ROTA
Color Phase Rotary
Changeover SIgnal
16
OUT
H-A-SW
Video Head Amp
Switching Pulse
17 -
NU Not Used
18 OUT
RF-SW
Video Head
Switching Pulse
19 -
NU Not Used
20
OUT A-MUTE-H
Audio Mute Control
Signal (Mute = “H”)
21 -
NU Not Used
22
E,F,H
,I,K,L
-
NU Not Used
G,J,
M
OUT
1ST-SND-H
Tuner 1 and Tuner
2 Switching Signal
23 OUT
REC-LED
Recording LED
Control Signal
24 OUT
REC-LED
Recording LED
Control Signal
25 -
NU Not Used
26 -
NU Not Used
27 -
NU Not Used
28 -
NU Not Used
29 OUT
SCART-
MUTE
RAPID-Switch Input
Signal from Scart
Jack
30 -
NU Not Used
31 IN
REC-
SAFETY
Record Protection
Ta b D e t ect i o n
32
E,F,G
,H,I,J
,K,L
-
NU Not Used
M
IN SECAM-H
SECAM Mode at
High
33
E,F,G
,H,I,J
,K,L
-
NU Not Used
M
IN/
OUT
TRICK-H
Special Playback =
“H” in SECAM
Mode
34 IN
RESET
System Reset
Signal (Reset=”L”)
35 IN
XCIN Sub Clock 32 kHz
36 OUT
XCOUT Sub Clock 32 kHz
37 -
TIMER+5V Vcc
38 IN
XIN Main Clock Input
39 OUT
XOUT Main Clock Output
40 -
GND GND
41 OUT
SPOT-KILL
Counter-measure
for Spot
42 OUT
EXT-L
External Input or
Playback = Output
43 IN
CLKSEL Clock Select (GND)
Pin
No.
Mark
IN/
OUT
Signal
Name
Function