TROUBLESHOOTING GUIDE
AUTO TRACKING DOES
NOT OPERATE
Yes
No
Check CYLINDER UNIT.
Yes
No
Yes
Replace IC1001.
Check CONTROL HEAD.
By manual tracking,
does the DC level at pin 59
of IC4001 change?
No
In auto tracking, is the
voltage at pin 14 of IC1001
more than DC1.65V?
Does the CTL PULSE
(about 1.0Vp-p) appear at pin 37
of IC1001?
1.0Vp-p
WHEN PLAYBACK, FAST
FORWARD OR REWIND MODE
IS ACTIVATED, UNIT STOPS
IMMEDIATELY
Does CAPSTAN DD
MOTOR rotate?
No
Yes
Refer to section "CAPSTAN DD
MOTOR NOTROTATING"
No
Yes
Does the REEL SENSOR
PULSE signal appear at pin
87 IC1001?
Check IC1001 and check
peripheral circuit.
Check Q1002.
1-35
Summary of Contents for HR-J3009UM
Page 2: ......
Page 6: ......
Page 63: ......
Page 64: ...VICTOR COMPANY OF JAPAN LIMITED VIDEO DIVISION Printed in Japan S40894 ...