Read Sony MHC-VX33 (serv.man2) Service Manual online
2
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.
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
1.
Check the area of your repair for unsoldered or poorly-soldered
connections. Check the entire board surface for solder splashes
and bridges.
connections. Check the entire board surface for solder splashes
and bridges.
2.
Check the interboard wiring to ensure that no wires are
"pinched" or contact high-wattage resistors.
"pinched" or contact high-wattage resistors.
3.
Look for unauthorized replacement parts, particularly
transistors, that were installed during a previous repair. Point
them out to the customer and recommend their replacement.
transistors, that were installed during a previous repair. Point
them out to the customer and recommend their replacement.
4.
Look for parts which, through functioning, show obvious signs
of deterioration. Point them out to the customer and
recommend their replacement.
of deterioration. Point them out to the customer and
recommend their replacement.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following safety
checks before releasing the set to the customer.
checks before releasing the set to the customer.
5.
Check the B+ voltage to see it is at the values specified.
6.
Flexible Circuit Board Repairing
• Keep the temperature of the 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.
General
Power requirements
Thai model:
Thai model:
220 V AC, 50/60 Hz
Other models:
120 V, 220 V or
230 — 240 V AC, 50/60 Hz
Adjustable with voltage
selector
230 — 240 V AC, 50/60 Hz
Adjustable with voltage
selector
Power consumption
190 watts
Dimensions (w/h/d)
Approx. 280 x 325 x 403 mm
Mass
Approx. 8.9 kg
Supplied accessories:
AM loop antenna (1)
FM lead antenna (1)
Remote Commander (1)
Batteries (2)
Video cable (1)
Front speaker pads (8)
FM lead antenna (1)
Remote Commander (1)
Batteries (2)
Video cable (1)
Front speaker pads (8)
Design and specifications are subject to change
without notice.
without notice.
Tape player section
Recording system
4-track 2-channel stereo
Frequency response
40 — 13,000 Hz (
±
3 dB),
using Sony TYPE I
cassette
cassette
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
Tourist model:
Tourist model:
76.0 — 108.0 MHz
Other models:
87.5 — 108.0 MHz
Antenna
FM lead antenna
Antenna terminals
75 ohm unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
Middle Eastern model:
Middle Eastern model:
531 — 1,602 kHz
(with the interval set at
9 kHz)
(with the interval set at
9 kHz)
Other models:
531 — 1,602 kHz
(with the interval set at
9 kHz)
530 — 1,710 kHz
(with the interval set at
10 kHz)
(with the interval set at
9 kHz)
530 — 1,710 kHz
(with the interval set at
10 kHz)
Antenna
AM loop antenna
Antenna terminals
External antenna terminal
Intermediate frequency
450 kHz
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