JVC HR-D540EE - Page 89

SECTION 6
TECHNICAL INFORMATIONS
6.1 CIRCUIT CONTROL SYSTEM
1. IC601 pin function (Mechacon)
Symbol
W/O
format
Contents
C-MOS LCM1
LCM2
DRUM CTL SPECIAL PB H CORRECTION
CAP CTL CAPSTAN MOTOR SERVO (FF/REW MODE)
TN-ch | FM DET AVERAGE FM (AUTO TRACKING DATA)
OPEN
THERM
THERMIC
CORRECTION
DRAIN MODE SENS 1
MODE SENS 2 MECHANISM MODE DETECTION
MODE SENS 3
CLK
:
CLOCK
DATA TM (TIMER/M-CTL CPU) bus Data «16 bit
REC SF REC SAFETY SW ON: L
CAP REV CAPSTAN MOTOR REV MODE: L
SERVO CAPSTAN MOTOR SERVO
LOADING MOTOR DRIVE
CAP
FG
MODE
DETECT,
BACK
SPACE
COUNT,
TAPE
REMAIN
CTL PULSE MODE DETECT, BLANK DETECT
PWM TUNING DATA OUTPUT
PAUSE
NC
ewe!
ING
eee
re
A
ee
ee
eel
Port 5
PAaAANOF NWA AANA ATAHNIO AN DW
V PULSE ie) V PULSE OUTPUT (V JITTER CORRECTION)
P5
3/T/ED3
DFF
|
DRUM
ROTATION
DETECT/REC
TIMING
CONTROL
(HEAD
SW)
CN Vss CN Vss \ GND (ALWAYS GND)
RESET
RESET
RESET
AT
CONNECT
VCR
TO
AC
XIN XIN
N
X OUT X OUT aa MAIN SYSTEM CLOCK (8 MHz)
Vss
Vss
ee
OND
cs.
Se
kee
ee
ee
ee
START
SENS
|__|
START
SENSOR,
LEADER
TAPE
DETECT
(DET
ON:
L)
— a REEL ROTATION DETECT, TAPE REMAIN
R. PAUSE REMOTE PAUSE (PAUSE ON: L)}
CASS CASSETTE SENSOR (CASS IN: IL)
AUX AUX MODE; L
END SENS END SENSOR, TRAILER TAPE DETECT (DET ON: L)
REC START REC START: L
REC : REC MODE: L
EE EE MODE: L
PCTL POWER CONTROL (PWR ON: L)
P MUTE PICTURE MUTE CONTROL (MUTE ON: L)
SP SP MODE: L (NOT USED)
SYNC
DET
SYNC
DETECT
(No
signal:
H)/PICTURE
MUTE
CONTROL
AFC DET AFC CONTROL (ON/OFF)
TEXT TEXT MODE: L
___ | AMUTE AUDIO MUTE CONTROL (MUTE ON: H)
V UP MOTOR DRIVE VOLTAGE CONTROL (Norm: L)
EXP DATA : 12 bit Serial data (TNR BAND SELECT)
TNR CTL TUNER CTL (ON: H)
M CE MEMORY IC CHIP ENABLE
M DATA MEMORY DATA WRITE/READ
_S/M/P
CLK
CLOCK
S. DATA SERVO IC CONTROL DATA
INDEX INDEX DATA WRITE/READ (ON: L)
Vec for the SYSTEM CONTROL
|
MIO AN WAP OO AND
PnNWOFA ATAHNOHK NWA AOD
< Q ts)
:
Table 6-1 1IC601 pin functions
6-1