Sony CMT-CP500MD / HCD-CP500MD Service Manual ▷ View online
5
HCD-CP500MD
DRAWING OUT THE TRAY DURING POWER OUT
CLEANING THE OPTICAL PICK-UP (CD PLAYER)
Tray
Move the cam block in the direction
of the arrow with a finger.
of the arrow with a finger.
CD mechanism deck
Optical pick-up block
Floating screw
Clean the lens block
with applicator.
with applicator.
6
HCD-CP500MD
SERVICE POSITION OF THE MD MECHANISM DECK
SERVICE POSITION OF THE CD MECHANISM DECK
MD mechanism deck
(MDM-7B)
(MDM-7B)
MD DIGITAL board
BD board
CN304
CN301
CN801
CN1001
MAIN board
CD mechanism deck
(CDM55F-K4BD43)
(CDM55F-K4BD43)
CN302
CN101
CN308
CN1
LOADING board
MAIN board
CD board
7
HCD-CP500MD
SERVICE POSITION OF THE TAPE MECHANISM DECK
Tape mechanism deck
CN301
CN303
8
HCD-CP500MD
JIG FOR CHECKING BD (MD) BOARD WAVEFORM
The special jig (J-2501-196-A) is useful for checking the waveform of the BD (MD) board. The names of terminals and the checking items
to be performed are shown as follows.
to be performed are shown as follows.
GND : Ground
I+3V : For measuring IOP (Check the deterioration of the optical pick-up laser)
IOP
I+3V : For measuring IOP (Check the deterioration of the optical pick-up laser)
IOP
: For measuring IOP (Check the deterioration of the optical pick-up laser)
TE
: TRK error signal (Traverse adjustment)
VC
: Reference level for checking the signal
RF
: RF signal (Check jitter)
FE
: Focus error signal
I+3V
CN105
IOP
TE
VC
GND
FE
RF
I+3V
Iop
Iop
GND
TE
FE
VC
RF
FE
VC
RF
I+3V
IOP
GND
TE
FE
FE
VC
RF
1
7
for
MDM-7B
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