Ic Descriptions - JVC HR-XVC1U Service Manual

SYSCON PCB OEC0110A (IC3001)
No. PORT
1 SVSS
2 CTL_REF
3 CTL-H(+)
4 CTL-H(-)
5 CTL_BIAS
6 CTL_FB
7 CTL_AMP(O)
8 CTL_AMP(I)
9 CFG
10 SVCC
11 AFC_PC
12 AFC_OSC
13 AFC_LPF
14 CSYN/HSYN
15 VLPF/VSYN
16 CV_IN2
17 CV_IN1
18 OSD VCC
19 CV_OUT
20 OSD_VSS
21 4/2 FSC_OUT
22 4/2 FSC_IN
23 AVSS
24 AN-B
25 AN-A
26 AN-9
27 AN8
28 P07/AN7
29 P06/AN6
30 P05/AN5
31 P04/AN4
32 P03/AN3
33 P02/AN2
34 P01/AN1
35 P00/AN0
36 AVCC
37 P10/IRQ0
38 P11/IRQ1
39 P12/IRQ2
1-24

IC DESCRIPTIONS

PIN NAME I/O
SVSS -
CTL_REF
CTL-H(+)
CTL-H(-)
CTL_BIAS
CTL_FB
CTL_AMP(O)
CTL_AMP(I)
CFG
SVCC
AFC_PC
AFC_OSC
AFC_LPF
CSYNC OUT
VSYNC IN
CV_IN2 IN
CV_IN1 IN
OSDVCC -
CV_OUT OUT
OSD_VSS -
4/2 FSC_OUT OUT
4/2 FSC_IN IN
AVSS -
VIDEO_ENV IN
BOT-H IN
EOT-H IN
MS_SEN-B IN
MS_SEN-A IN
KEY-B IN
KEY-A IN
STEREO_SEL IN
HI-FI_ENV IN
AFT-S_CURVE IN
SERVICE IN
TAB SW IN
AVCC -
POWER_FAIL IN
CFG IN2 IN
NC IN
DESCRIPTION
Ground.
Output terminal for CTL amp REF (1/2 SVCC)
Input and output terminal of Control Head.
Input terminal of Control Head.
Output terminal for bias.
Input terminal for CTL feedback
Output terminal for amp out.
Input terminal for CTL shumit amp .
Input terminal for CAPSTAN FG signal detection.
+ 5V (Servo)
AFC oscilator (external circuit).
AFC oscilator (external circuit).
LPF connection for AFC OSC.
Output terminal for composite SYNC.
Input terminal for composite SYNC.(from 14pin)
Composite Video input terminal.(for data slicer)
Composite Video input terminal.(for OSD)
+ 5V
Composite Video output.(with OSD)
Ground.
2 FSC pulse.
2 FSC pulse.
Ground.
Input terminal of video RF envelope.
Tape start sensor input signal.
Tape end sensor input signal.
Input terminal of mecha state sensor.
Main unit key input.
Input terminal for the judgement of voice reception condition.
Input terminal of HiFi RF envelope.
AFT S CURVE input for tuner.
Input terminal for Service Mode.
Input terminal for judge the tape if it has TAB or not.
ON/OFF control Micon AD section.
Input terminal of Power fail signal.
Input terminal for CAPSTAN FG signal detection.
Not used.(for FZTAT)