Troubleshooting Table; Picture, Sound; Operation - Panasonic FZ-10 Service Manual

2-3. Troubleshooting Table
Picture, Sound
Symptom
No picture and no sound
No sound
Loud noise appear or sound disappear at random,
and they are repeatable.
Sound is stoooed accidentally.
Color is abnormal.
Object (such as a meteorite in the demo-screen) is
abnormal.
Although the image had be cleared already, it have
remained on the screen.
Operation
Symptom
Particularly program is not executed.
Program is stopped during the execution and it is
repeatable.
Proo ram is stoooed accidentally.
Picture becomes stop-motion playina.
Prooram is stoooed at random and it is repeatable.
2-5
FZ-10
Cause
Resistor array which is connected to DRAM is
solder_ed not enough.
IC31 0 and IC330 are abnormal.
IC300, IC301, IC320 and IC322 are abnormal.
One of IC120 and IC1 00 is abnormal.
Circuit pattern around IC120 and IC1 00 is cut.
Circuit pattern around DRAM is cut.
MUTE circuit(O500, 0501, 0263, 0262, 0261 and
0260) is abnormal.
If base voltage of 0500 is set high, MUTE circuit is
abnormal.
IC120 (ANVIL)
Traverse Unit
Each signal [S0-S31: between ANVIL and DRAM]
is abnormal.
IC120 (ANVIL) is abnormal.
IC120 (ANVIL)
VRAM (IC300, IC301, IC320, IC321) is abnormal.
Cause
IC120 (ANVIL)
Traverse Unit
IC120 (ANVIL)
Traverse Unit
VRAM (IC300, IC301, IC320, IC321)
IC120 (ANVIL)