Sony MHC-V5 (serv.man3) Service Manual ▷ View online
Page 4
# Note of replacing MS-476 board
=> MS-476 board is supplied with CD mechanism(CDM1) .
# Removal of Heat Sink when checking => Ok but check with low power output.
# Un-Replaceable IC => IC with short pin length, IC with heat sink pad, etc.
# Test disc for CD => Same as general Sony CD models
#Disc Tray Lock
=> Never open this releasing method to the customer.
# Note of replacing MS-476 board
=> MS-476 board is supplied with CD mechanism(CDM1) .
# Removal of Heat Sink when checking => Ok but check with low power output.
# Un-Replaceable IC => IC with short pin length, IC with heat sink pad, etc.
# Test disc for CD => Same as general Sony CD models
#Disc Tray Lock
=> Never open this releasing method to the customer.
2-1. MHC-V5 Service Notes
9
Please refer to Service manual
Page 5
# Discharge of Capacitors
We suggest to discharge large capacitors on D-AMP boards and SWR before repair.
Page 6
# Open disc tray with thin wire, if the power supply or loading circuit was damaged.
Use “thin wire more than 8cm length”.
Ex. Deform a clip to thin wire
# Discharge of Capacitors
We suggest to discharge large capacitors on D-AMP boards and SWR before repair.
Page 6
# Open disc tray with thin wire, if the power supply or loading circuit was damaged.
Use “thin wire more than 8cm length”.
Ex. Deform a clip to thin wire
2-2. MHC-V5 Service Notes
10
Open tray
Page 8
# Push and release “Screw cap” both side with pliers or thin plastic stick and so on.
Push them carefully not to injure the screw caps.
There are 3 screw caps in one side. (Total 6 screw caps)
# Push and release “Screw cap” both side with pliers or thin plastic stick and so on.
Push them carefully not to injure the screw caps.
There are 3 screw caps in one side. (Total 6 screw caps)
2-3. MHC-V5 Disassembly
11
Push here
Screw cap
Claw
Page 11
# Short land to prevent static electricity damage of Optical pick-up unit
Please solder this short-land before removing flexible cable of CDM block basically.
And, please remove the solder after connecting flexible cable of CDM block.
If this short land is short-circuited wrongly, pick-up unit cannot read CD signal.
For each board checking, CDM is necessary to remove firstly.
So, please remove chuck cap and solder this short land.
Please slide chuck cap to outer direction and remove it.
And, please remove the solder when you check CD operation.
# Short land to prevent static electricity damage of Optical pick-up unit
Please solder this short-land before removing flexible cable of CDM block basically.
And, please remove the solder after connecting flexible cable of CDM block.
If this short land is short-circuited wrongly, pick-up unit cannot read CD signal.
For each board checking, CDM is necessary to remove firstly.
So, please remove chuck cap and solder this short land.
Please slide chuck cap to outer direction and remove it.
And, please remove the solder when you check CD operation.
2-4. MHC-V5 Disassembly
(Important)
Slide chuck cap to outer direction.
Then, pull up chuck cap.
Short land
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