Read Sony HCD-GZX33D / HCD-GZX55D / HCD-GZX88D Service Manual online
HCD-GZX33D/GZX55D/GZX88D
2
NOTES ON CHIP COMPONENT REPLACEMENT
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
• 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
• 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.
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
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specifi ed herein may result in hazardous
radiation exposure.
Use of controls or adjustments or performance of procedures
other than those specifi ed herein may result in hazardous
radiation exposure.
SAFETY CHECK-OUT
After correcting the original service problem, perform the
following safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
After correcting the original service problem, perform the
following safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indication
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2 V AC range are suitable. (See
Fig. A)
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2 V AC range are suitable. (See
Fig. A)
1.5 k
Ω
0.15
μF
AC
voltmeter
(0.75 V)
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
This appliance is classified as a CLASS 1
LASER product. This marking is located on
the rear exterior.
LASER product. This marking is located on
the rear exterior.
Bluetooth section
Communication system
Communication system
Bluetooth Standard version 3.0 + EDR
(Enhanced Date Rate)
(Enhanced Date Rate)
Output
Bluetooth Standard Power Class 2
Maximum communication range
Line of sight approx. 10 m
1)
Frequency band
2.4 GHz band (2.4000 GHz – 2.4835 GHz)
Modulation method
FHSS (Freq Hopping Spread Spectrum)
Compatible Bluetooth profiles
2)
A2DP (Advanced Audio Distribution Profile)
AVRCP 1.3 (Audio Video Remote Control
Profile)
Supported codecs
Supported codecs
SBC (Sub Band Codec)
AAC (Advanced Audio Coding)
1)
The actual range will vary depending on factors such as obstacles between devices,
magnetic fields around a micro-wave oven, static electricity, reception sensitivity,
antenna’s performance, operating system, software application, etc.
antenna’s performance, operating system, software application, etc.
2)
Bluetooth standard profiles indicate the purpose of Bluetooth communication between
devices.
General
Power requirements
Power requirements
AC 120 V – 240 V, 50/60 Hz
Power consumption
MHC-GZX88D: 350 W
MHC-GZX55D:
255
W
MHC-GZX33D: 195 W
Dimensions (w/h/d) (excl. speakers) (Approx.)
270 mm × 363 mm × 364 mm
Mass (excl. speakers) (Approx.)
5.2
5.2
kg
Supplied accessories
Remote control (1)
R6 (Size AA) batteries (2)
FM lead/AM loop antenna (1)
Spacer (MHC-GZX88D only) (2)
Speaker pads (MHC-GZX88D only) (16)
Video cord (1)
Design and specifications are subject to change without notice.
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