Hitachi DZ-MV580A Service Manual page 55

Troubleshooting > Trouble Diagnosis
Service
Symptom
position
DISC EJECT (A)
button does not
operate
REC button does (B)
not operate
Left button/ (C)
joystick does not
operate
QUICK MODE (C)
switch does not
operate
No image on LCD -----
monitor (D)
No image in (C)
viewfinder (EVF) Close LCD
monitor
Block noise -----
appears during
video recording
Camera recorded (B)
image is abnormal
(B)
No image from AV -----
input/output
terminal (B)
Check points
TL1547 [MAN-B] Can change in voltage be
confirmed when button is
operated (EJECT SW)?
TL0522 [MAN-A] Can change in voltage be
confirmed when button
(REC) is pressed?
TL7030 [AEL-B] Can change in voltage be
confirmed when button/
joystick (KEY1) is moved?}
TL7028 [AEL-B] Can change in voltage be
confirmed when switch
(KEY2) is moved?
----- Does backlight turn on?
TL3418 [LCD] Can approx. 5 V DC (INV5V)
be confirmed?
TL3715 [AEL-B] Can video signal (EVF-G) be
confirmed?
-----
TL2084 [MAN-A] Can sensor drive pulses (V1-
TL2085 [MAN-A] 4, H1, H2, RG) be confirmed?
TL2086 [MAN-A]
TL2089 [MAN-A]
TL2090 [MAN-A]
TL2091 [MAN-A]
TL2095 [MAN-A]
TL2082 [MAN-A] Can video signal (CCD-OUT)
be confirmed?
----- Does image appear on LCD
monitor or in EVF?
TL6010 [MAN-B] Can video signal (VIDEO) be
confirmed?
4 - 32
Troubleshooting due to
Detail of check
Yes: Replace MAN-H/
No:
Yes: Replace MAN-H/
No:
Yes: Replace MAN-H/
No:
Yes: Replace LCD unit.
Yes: Q3451 or Q3452
No:
Yes: Replace EVF unit.
No:
---------- Replace MAN-H/MAN
circuit board.
No:
Yes: Replace MAN-H/
No:
No:
Yes: Replace MAN-H/
No:
check results
MAN circuit board.
Replace rear cover.
MAN circuit board.
Side case-L or parts
on the SWL2 circuit
board faulty.
MAN circuit board.
Replace SW8017 on
SWL3 circuit board.
and its peripheral
circuits are faulty.
Replace MAN-H/
MAN circuit board.
Replace IC3701.
Replace MAN-H/
MAN circuit board.
MAN circuit board.
With DZ-MV580A,
replace IC1001.
With DZ-MV550A,
replace lens unit.
Replace MAN-H/
MAN circuit board.
MAN circuit board.
IC6103 and its
peripheral circuits
are faulty.