Service Precautions; Service Tools And Equipment - Yamaha DV-S5270 Service Manual

SERVICE PRECAUTIONS

1. Initializing the DVD Player
Initialize the DVD player whenever you replace a microprocessor, microprocessor peripheral parts, module C.B.A or mother C.B.A.
1-1. Precautions
The customer settings will return to factory preset settings when the player is initialized. Make a note of the settings and reset
them after initializing.
• When resetting, see the Initial Setting in the Operating Instructions.
1-2. Initialization Method
The player will be initialized (return to the factory preset condition) when you press the "PAUSE", "SKIP
buttons simultaneously. When the DVD player is initialized, "All Clear" appears on screen, it also displays "INITIALIZED".
2. Handling After Completing Repairs
Use the following procedure to secure the traverse unit in the standby position.
2-1. Method
With the power turned on:
1. Press the "OPEN/CLOSE" button to close the tray.
2. Press the "POWER" button to turn off the power.
3. Disconnect the power plug from the outlet.
2-2. Precautions
Do not disconnect the power plug from the outlet with the tray still open, then close the tray manually. If you were to do so, the
traverse unit would not go to the upper (standby) position, and the player could not be transported.

SERVICE TOOLS AND EQUIPMENT

1. Service Tools and Equipment Table
Application
General
Tilt adjustment
Inspection
Others
Confirmation
Electrical adjustment
General
Static electricity countermeasures
2. Storing and Handling Test Discs
Surface precision is vital for DVD test discs. Be sure to store and handle them carefully.
1. Do not place discs directly onto the workbench, etc., after use.
2. Handle discs carefully in order to maintain their flatness.
Place them into their case after use and store them verically. Store discs in a cool place where they are not exposed to direct
sunlight or air from air conditioners.
3. Accurate adjustment will not be possible if the disc is warped from being placed on a surface made of glass, etc. If this
happens, use a new test disc to make optical adjustments.
4. If adjustment is done using a warped disc, the adjustment will be incorrect and some discs will not be playable.
Name
DVD test disc
Hex wrench
Adjustment table
Extension cables (Power supply C.B.A. to mother C.B.A.)
Extension cable (module C.B.A. to mother C.B.A.)
Screw lock
Grease
Lubricant
Grease
CD test disc
VCD test disc
Oscilloscope
Probe
AV cable
TV monitor
General tools (Screwdriver, etc.)
Soldering iron (with ESD countermeasure)
Anti-static wrist strap
Conductive material (conductive sheet)
1 - 9
" and "OPEN/CLOSE"
Number
DVDT-S15 (AAX07320) or DVDT-S01 (TX946080)
JZS0100 (TX946380) , 1.2mm
JGS0099 (TX946360)
JGS0098 (TX946370) × 2
RZZ0L01 (TX946400)
JGS0091 (TX946260)
JGS0092 (TX946270)
JZS0648 (TX946410)
JGS0101 (TX946390)
SZZP1054C (TX946090)
PVCD_K06 (TX946090)
VJA0658 (MX605190)