Sony CX-VX33 Service Manual page 2

CX-VX33
Tuner
FM
Tuning range 87.5 – 108 MHz
Intermediate frequency 10.7 MHz
Signal-to noise ratio 60 dB (Mono)
AM (MW)
Tuning range 522 – 1,611 kHz
Intermediate frequency 450 kHz
Amplifier
Stereo mode 50 W + 50 W
(8 Ω at 1 kHz, THD 10%)
Surround mode Front: 50 W + 50 W
(*Depending on the Centre*: 50 W
sound mode settings Surround*: 50 W + 50 W
and the source, there (8 Ω at 1 kHz, THD 10%)
may be no sound Subwoofer*: 80 W
output.) (4 Ω at 50 Hz, THD 10%)
Outputs PHONES: (32 Ω, 25 mW)
Design and specifications are subject to change without
notice.
• Abbreviation
CET : East European & Russian model
SP : Singapore model
E3 : 240 V AC area in E model
E32 : 110 – 240 V AC area in E model
AUS : Australian model
RU : Russian model
2
Notes on Chip Component Replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of soldering iron around 270°C during
repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 °C higher than
ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges oc-
cur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.