Read Sony ZS-M7 Service Manual online
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ABOUT THE BD BOARD WAVEFORM CHECKING JIG
The special jig (J-2501-124-A) is highly convenient when check-
ing the waveform of the BD board of the MD section. Pin names
and items to check are as follows:
ing the waveform of the BD board of the MD section. Pin names
and items to check are as follows:
I+3V : for IOP measurement (check for depleted optical pickup
laser)
IOP
: for IOP measurement (check for depleted optical pickup
laser)
TEO : TRK error signal (traverse adjustment)
VC
VC
: Standard level for checking signals
RF
: RF signal (jitter check)
RESET button
BD board
CN110
DG board
I + 3V
IOP
TEO
VC
RF
Jig
(J-2501-124-A)
MD block section
ABOUT THE HARDWARE RESET
It is possible to reset the system microcomputer by pressing the
RESET button located on the rear with a pointed object. Use this
button when the unit cannot be operated properly due to such prob-
lems as microcomputer errors, etc.
RESET button located on the rear with a pointed object. Use this
button when the unit cannot be operated properly due to such prob-
lems as microcomputer errors, etc.
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