JVC HR-XVC1U Service Manual page 32

SYSCON PCB OEC0110A (IC3001)
No. PORT
78 OSC1
79 DVSS
80 OSC2
81 VCL
82 MD0
83 P34/PWM2
84 P33/PWM1
85 P32/PWM0
86 P31/SV2
87 P30/SV1
88 P70/PPG0
89 P71/PPG1
90 P72/PPG2
91 P73/PPG3
92 P74/PPG4/RP8
93 P74/PPG5/RP9
94 P76/PPG6/RPA
95 P77/RPG7/RPB
96 P80/YCO
97 P81/EXCAP/YBO
98 P82/EXCTL
99 P83/C,ROT/R
100 P84/H.AMP/G
101 P85/COMP/B
102 P86/EZTTRG
103 P87/DPG
104 DFG
105 VIDEO_FF
106 AUDIO_FF
107 DRUM_PWM
108 CAP_PWM
109 V-PULSE
110 SV VSS
111 C.SYNC_IN
112 VCC
1-26
IC DESCRIPTIONS
PIN NAME I/O
OSC1 IN
VSS -
OSC2 OUT
VCL IN
MD0 IN
NC OUT
CAP_LIMIT OUT
T.AUDIO_MUTE OUT
TV/VCR OUT
POWER_MUTE OUT
SURROUND_ON OUT
NC OUT
NC OUT
AV SW_2 OUT
AV SW_1 OUT
Y/C CS OUT
CENTER LED OUT
AUDIO_OUT_MUTE OUT
V_REC_ST-H OUT
LDM CTL OUT
CAP_FWD-H OUT
C.ROTARY OUT
H.AMP.SW OUT
COMP IN
CAP_FULL OUT
CYL_SPEED_UP OUT
D FG/PG IN
H.SW OUT
HI-FI H.SW OUT
DRUM_PWM OUT
CAP_PWM OUT
DUMMY_V-SYNC OUT
SV VSS -
SYNC IN
VCC(SV) -
DESCRIPTION
Connect the main crystal(10MHz)
Ground.
Connect the main crystal(10MHz)
Connect the capacitor
FZTAT Write MODE.
not used.
Switch the maximum output current of the Capstan Motor.
H for at PLAY in VCR MODE. L for except above case.
H for at RF modulator ON. L for except above case.
audio mute at POWER ON/OFF.
Control the surround IC.
Not used.
Not used.
Control rear/front video signal.(at AV X 2)
Control DVD/VCR video/audio signal.
Control terminal for Y/C. (CHIP SELECT).
The CENTER LED light-up/put-off control output.
H for at AUDIO MUTE . L for except above case.
On control of A/V recording(Whole width erase) circuit.
Loading motor control terminal.
Capstan forward and backward command.
Color Rotary Control output.
Switching output of Head Amp SW.
Comparison results input of Playback Envelope level on SP/LP
heads (4 heads).
Output the HIGH during the acceleration force of capstan motor at
SLOW mode.
Output terminal for correct cylinder during SLOW.
Input terminal for DRUM FG signal detection.
Output terminal of Video Head SW.
Output terminal of HI-FI Head SW.
PWM output of Cylinder control.
PWM output of Capastan control.
Virtual V Pulse output.
Ground.
Input terminal for composite SYNC.
+ 5V