Sony VPL-F430HZ, Service Manual

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1-56 (E)
VPL-FHZ65
1-13-5. Power Supply Board
G board (EMI filter and power unit)
The G board mounts an AC power line EMI filter and AC/DC switching power unit.
The G board generates standby power (ECO3.3 V), power (13.4 V and 16.7 V) for signal board driving of
this unit, and a laser driving voltage (380 V).
ID board (Switching regulator)
The ID board steps down the primary voltage (380 V) in a laser drive system to the voltage (23 V/24 V)
required for a DC/DC converter on the secondary side.
The driving current of a laser diode is controlled by CPU and distributed to two LA boards (an LB board
for VPL-FHZ60).
LA board (VPL-FHZ65/F630HZ/F635HZ)
The LA board mounts a laser diode and supplies power.
The LA board mounts the temperature sensor of a laser diode.
LB board (VPL-FHZ60/F530HZ/F535HZ/F535HZL/FHZ57/F430HZ/F435HZ/F435HZL)
The LB board mounts a laser diode and supplies power.
The LB board mounts the temperature sensor of a laser diode.
1-14. Power Cord
To get a power cord, please contact your local Sony Sales Office/Service Center.
w
Use the approved Power Cord (3-core mains lead)/Appliance Connector/Plug with earthing-contacts
that conforms to the safety regulations of each country if applicable.
.
Use the Power Cord (3-core mains lead)/Appliance Connector/Plug conforming to the proper ratings
(Voltage, Ampere).
.
Never use an injured power cord.
1-15. Lead-free Solder
All boards mounted in this unit use lead-free solder. Be sure to use lead-free solder when repairing the
boards of this unit. A lead free mark (LF) indicating that the solder contains no lead is printed on each
board.
(Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular
size.)
: LEAD FREE MARK
n
.
The lead-free solder melts at a temperature about 40
d
C higher than the ordinary solder, therefore, it is
recommended to use the soldering iron having a temperature regulator.
.
The ordinary soldering iron can be used but the iron tip has to be applied to the solder joint for a slightly
longer time. The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so
be careful.