Read Sony HCD-GNZ55D / MHC-GNZ55D Service Manual online
1
Ver. 1.2 2007. 08
Model Name Using Similar Mechanism
HCD-GNZ7D/GNZ8D/GNZ9D
DVD
DVD Mechanism Type
CDM74HF-DVBU101//C
Section
Optical Pick-up Name
KHM-310CAB/C2NP
Tape Deck
Model Name Using Similar Machanism
NEW
Section
SERVICE MANUAL
E Model
HCD-GNZ55D
Amplifier section
The following measured at AC 120, 127, 220, 240 V,
50/60 Hz
DIN power output (rated)
50/60 Hz
DIN power output (rated)
40 W + 40 W
(4 ohms at 1 kHz, DIN)
(4 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
60 W + 60 W
(4 ohms at 1 kHz, 10%
THD)
(4 ohms at 1 kHz, 10%
THD)
Inputs
MIC (phone jack):
MIC (phone jack):
Sensitivity 1 mV,
impedance 10 kilohms
impedance 10 kilohms
Outputs
VIDEO OUT (phono jack):
VIDEO OUT (phono jack):
max. output level
1 Vp-p, unbalanced, Sync
negative load impedance
75 ohms
1 Vp-p, unbalanced, Sync
negative load impedance
75 ohms
PHONES (stereo mini jack):
Accepts headphones of
8 ohms or more
8 ohms or more
FRONT SPEAKER:
Use only the supplied speakers
SPECIFICATIONS
Disc player section
System
Compact disc and digital
audio and video system
audio and video system
Laser
Semiconductor laser
(DVD:
(DVD:
λ=650 nm,
CD:
λ=790 nm)
Emission duration:
continuous
continuous
Frequency response
DVD (PCM 48 kHz):
2 Hz – 22 kHz (±1 dB)
CD: 2 Hz – 20 kHz (±0.5 dB)
2 Hz – 22 kHz (±1 dB)
CD: 2 Hz – 20 kHz (±0.5 dB)
Video color system format
Latin American model:
NTSC
Other models: NTSC, PAL
NTSC
Other models: NTSC, PAL
Sony Corporation
Personal Audio Division
Published by Sony Techno Create Corporation
9-887-296-03
2007H04-1
© 2007. 08
– Continued on next page –
DVD DECK RECEIVER
• HCD-GNZ55D is the tuner,
deck, DVD and amplifier
section in MHC-GNZ55D.
section in MHC-GNZ55D.
2
HCD-GNZ55D
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.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
Tape deck section
Recording system
4-track 2-channel stereo
Frequency response
50 – 13,000 Hz (±3 dB),
using Sony TYPE I tape
using Sony TYPE I tape
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
87.5 – 108.0 MHz
(50-kHz step)
(50-kHz step)
Antenna
FM lead antenna
Antenna terminals
75 ohm unbalanced
Intermediate frequency 10.7 MHz
AM tuner section
Tuning range
Saudi Arabian model:
Saudi Arabian model:
531 – 1,602 kHz (with the
interval set at 9 kHz)
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)
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
General
Power requirements
Saudi Arabian model:
Saudi Arabian model:
120 – 127 V or 220 – 240 V AC,
50/60 Hz
Adjustable with voltage
selector
50/60 Hz
Adjustable with voltage
selector
Thai model:
220 V AC, 50/60 Hz
Other models:
120 V or 220 – 240 V AC,
50/60 Hz
Adjustable with voltage
selector
50/60 Hz
Adjustable with voltage
selector
Power consumption
45 watts
Dimensions (w/h/d) (Approx.)
280
×
326
×
385.5 mm
Mass (Approx.)
6.4 kg
Design and specifications are subject to change without
notice.
notice.
3
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
other than those specified herein may result in hazardous
radiation exposure.
HCD-GNZ55D
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
Notes on Chip Component Replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
• 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
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
• 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
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 occur such
as on IC pins, etc.
ordinary solder so use caution not to let solder bridges occur 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.
be added to ordinary solder.
This appliance is
claassified as a CLASS 1
LASER product. This
label is located on the
rear exterior.
claassified as a CLASS 1
LASER product. This
label is located on the
rear exterior.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
Laser component in this product is capable
of emitting radiation exceeding the limit for
Class 1.
of emitting radiation exceeding the limit for
Class 1.
Ver. 1.1
NOTE ON REPLACEMENT OF DMB15 BOARD
New part of EEPROM (IC103) on the DMB15 board cannot be
used. Therefore, if the mounted DMB15 board (A-1167-778-A, etc.)
is replaced, exchange new EEPROM (IC103) with that used before
the replacement.
used. Therefore, if the mounted DMB15 board (A-1167-778-A, etc.)
is replaced, exchange new EEPROM (IC103) with that used before
the replacement.
4
HCD-GNZ55D
MODEL IDENTIFICATION
– BACK PANEL –
MODEL
PARTS No.
E3, E15 models
2-663-832-0
s
EA model
2-663-832-1
s
MY, SP models
2-663-832-2
s
E12, E13 models
2-663-832-3
s
PH model
2-663-832-5
s
TH model
2-663-832-6
s
• Abbreviation
E3
: 240 V AC area in E model
E12 : 220-240 V AC area in E model
E13 : 220-230 V AC area in E model
E15 : Iran model
EA
E13 : 220-230 V AC area in E model
E15 : Iran model
EA
: Saudi arabia model
PH
: Philippine model
SP
: Singapore model
TH
: Thai model
MY
: Malaysia model
PARTS No.
