Amplifier section
For the United States model
AUDIO POWER SPECIFICATIONS
HCD-HPZ9
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 6-ohm loads, both channels driven, from
120 – 10,000 Hz: rated 85 watts per channel
minimum RMS power, with no more than 10%
total harmonic distortion from 250 milliwatts to
rated output.
HCD-HPZ7
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 6-ohm loads, both channels driven, from
120 – 10,000 Hz: rated 50 watts per channel
minimum RMS power, with no more than 10%
total harmonic distortion from 250 milliwatts to
rated output.
HCD-HPZ9
North American model:
Continuous RMS power output (reference):
85 + 85 W
(6 ohms at 1 kHz, 10%
THD)
Other models:
The following measured at AC 240 V, AC 220 V or AC
120 V
DIN power output (rated): 53 + 53 W
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
70 + 70 W
(6 ohms at 1 kHz, 10%
THD)
HCD-HPZ7
North American model:
Continuous RMS power output (reference):
50 + 50 W
(6 ohms at 1 kHz, 10%
THD)
European model:
DIN power output (rated): 50 + 50 W (6 ohms at
1kHz, DIN)
Continuous RMS power output (reference):
60 + 60 W (6 ohms at
1kHz, 10% THD)
Music power output (reference):
100 + 100 W (6 ohms at
1kHz, 10% THD)
Other models:
The following measured at AC 220 – 240 V, 50/60 Hz
DIN power output (rated): 45 + 45 W
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
50 + 50 W
(6 ohms at 1 kHz, 10%
THD)
Inputs
ANALOG IN (stereo mini jack):
Sensitivity 250 mV,
impedance 47 kilohms
Outputs
CD DIGITAL OUT:Optical Wavelength:
660 nm
PHONES (stereo mini jack):
accepts headphones with
an impedance of 8 ohms or
more
SPEAKER:accepts impedance of 6 to
16 ohms
SERVICE MANUAL
Ver. 1.5 2006.01
HCD-HPZ7/HPZ9 are the Amplifier, CD play er, T ape
Deck and Tuner section in CMT-HPZ7/HPZ9.
US and foreign patents licensed from
Dolby Laboratories.
CDCD Mechanism TypeCDM82C-F1BD83CDM82C-K6BD83
SectionBase Unit NameBU-F1BD83BU-K6BD83
TAPEModel Name Using Similar Mechanism NEWNEW
SectionT ape Transport Mechanism TypeCMAL5Z225ACMAL5Z225A
(with the tuning interval
set at 10 kHz)
531 – 1,710 kHz
(with the tuning interval
set at 9 kHz)
European model:531 – 1,602 kHz
(with the tuning interval
set at 9 kHz)
Other models:530 – 1,710 kHz
(with the tuning interval
set at 10 kHz)
531 – 1,602 kHz
(with the tuning interval
set at 9 kHz)
AntennaAM loop antenna
Antenna terminalsExternal antenna terminal
Intermediate frequency450 kHz
General
Power requirements
North American model:120 V AC, 60 Hz
European model:230 V AC, 50/60 Hz
Other models:120 V, 220 V or 230 –
240 V AC, 50/60 Hz
Adjustable with voltage
selector
Power consumption
HPZ9
North American model:145 W
Other models:125 W
HPZ7
North American model:85 W
European model:95 W
0.25 W (in Power Saving
Mode)
Other models:90 W
Dimensions (w/h/d) (excl. speakers)
Approx. 198 × 275 ×
341 mm
Mass (excl. speakers)
Amplifier/Tuner/Tape/CD section:
HPZ9:7.7 kg
HPZ7:7.3 kg
Design and specifications are subject to change
without notice.
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.
2
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR
LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES
PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE
FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS
QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT
DONNÉS DANS CE MANUEL OU D ANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.
HCD-HPZ7/HPZ9
r
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 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.
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.
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
WT-540A. Follow the manufacturers’ instructions to use these
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)
To Exposed Metal
Parts on Set
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on the
exterior.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
break-down 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 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 pickup block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
Carry out the “S curve check” in “CD section adjustment” and check
that the S curve waveforms is output three times.
AC
0.15 µF
1.5 k
Ω
Earth Ground
voltmete
(0.75 V)
Fig. A. Using an AC voltmeter to check AC leakage.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the leadfree 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
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.