HCD-HP7 is the Amplifier, CD player, Tape
Deck and Tuner section in CMT-HP7.
Model Name Using Similar Mechanism NEW
CD
Section
TAPE
Section
CD Mechanism TypeCDM69CH-K6BD71C
Base Unit NameBU-K6BD71C
Optical Pick-up NameKSM-213D
Model Name Using Similar Mechanism HCD-EP515
Tape Transport Mechanism T ypeCMAL1Z234A
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Main unit
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 6 ohm loads, both channels driven, from
120 – 10,000 Hz: rated 60 watts per channel
minimum RMS power, with no more than 10%
total harmon ic d istorti on from 2 50 mil liw atts to
rated output.
Amplifier section
North American model:
Continuous RMS power output (reference):
60 + 60 watts (6 ohms at 1
kHz, 10% THD)
Total harmon ic distortion less than 0.7% (6 ohms at 1
kHz, 30 W)
European and Russian models:
DIN power output (rated): 60 + 60 watts (6 ohms at 1
kHz, DIN)
Continuous RMS power output (reference):
60 + 60 watts (6 ohms at 1
kHz, 10% THD)
Music power output (reference):
120 + 120 watts (6 ohms at
1 kHz, 10% THD)
SPECIFICATIONS
Other models:
The following measured at AC 120, 127, 220, 240 V
50/60 Hz
DIN power output (rated): 60 + 60 watts (6 ohms at 1
Personal Audio Group
Published by Sony Engineering Corporation
HCD-HP7
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
Russian model:65.0 – 74.0 MHz
(There is no stereo effect)
87.5 – 108.0 MHz
Other models:87.5 – 108.0 MHz
AntennaFM lead antenna
Antenna terminals75 ohms unbalanced
Intermediate frequen c y10.7 MH z
AM tuner section
Tuning range
Pan-American model:530 – 1,710 kHz
(with the tuning interval
set at 10 kHz)
531 – 1,710 kHz
(with the tuning interval
set at 9 kHz)
European, Russian, Midd le Eastern models:
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 frequen cy450 kHz
General
Power requirements
North American model:120 V AC, 60 H z
European and Russian models:
230 V AC, 50/60 Hz
Australian model:230 – 240 V AC, 50/60 H z
Mexican model:120 V AC, 60 Hz
Other models:120 V, 220 V or 230 – 240
V AC, 50/60 Hz
Adjustable with voltage
selector
Power consumption
European and Russian models:
100 watts
0.35 watts (at the Power
Saving Mode)
Other models:100 watts
Dimensions (w/h/d)Approx. 199 252 400
mm
MassApprox. 7.0 kg
Supplied accessories:Remote Commander (1)
Batteries (2)
AM loop antenna (1)
FM lead antenna (1)
Speaker pads (8)
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 AY ANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS P AR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMA TIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
2. GENERAL ·········································································· 6
3. DISASSEMBLY
3-1. Case (Side-L)(Side-R),
Tape Mechanism Deck (CMAL1Z234A) ······················ 9
3-2. Front Panel Section ······················································· 9
3-3. Panel Board ·································································10
3-4. Back Panel Section ······················································ 10
3-5. MAIN Board ······························································· 11
3-6. PWR AMP Board, Power Transformer ·······················11
3-7. CD Mechanism Deck (CDM69CH-K6BD71C) ··········12
3-8. Base Unit Section ························································ 12
3-9. Base Unit (BU-K6BD71C) ········································· 13
3-10.BD Board·····································································13
3-12.SW Board, Bracket (Top) Assy ··································· 14
3-13.CONNECTOR Board ··················································15
3-14.Motor (Stocker) Assy (Stocker)(M761) ······················ 15
3-15.Motor (Roller) Assy (Roller)(M781)··························· 16
3-16.Motor (Mode) Assy (Mode)(M771) ····························16
3-17.Rubber Roller (Slider) Assy ········································ 17
3-18.Timing Belt (Front/Rear)············································· 17
3-19.Cam (Gear) ·································································· 18
3-20.SENSOR Board ··························································· 18
4. ASSEMBLY
4-1. How to Install the Cam (Eject Lock) ···························· 18
4-2. How to Install the Cam (GEAR)··································· 18
4-3. How to Install the Gear (MODE C)······························ 19
4-4. How to Install the Gear (MODE CAM) ······················· 19
4-5. How to Install the Rotary Encoder (S702),
— PWR AMP/Power Section —································· 38
8-12.IC Block Diagrams ······················································ 39
8-13. IC Pin Function Description ······································· 42
9. EXPLODED VIEWS
9-1. Case, Top Panel Section ·············································· 44
9-2. Front Panel Section ····················································· 45
9-3. Chassis Section-1 ························································ 46
9-4. Chassis Section-2 ························································ 47
9-5. CD Mechanism Section-1 (CDM69CH-K6BD71C)··· 48
9-6. CD Mechanism Section-2 (CDM69CH-K6BD71C)··· 49
9-7. CD Mechanism Section-3 (CDM69CH-K6BD71C)··· 50
9-8. CD Mechanism Section-4 (CDM69CH-K6BD71C)··· 51
9-9. CD Mechanism Section-5 (CDM69CH-K6BD71C)··· 52
9-10.CD Mechanism Section-6 (CDM69CH-K6BD71C) ··· 53
9-11.Optical Pick-up Section (KSM-213D) ························ 54
10.ELECTRICAL PARTS LIST ······································· 55
3
HCD-HP7
r
SECTION 1
SERVICING NOTES
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 leaka ge 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 v oltage drop across a resistor by means of a V OM
or battery-operated A C voltmeter . The “limit” indication is 0.75
V, so analog meters m ust 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
1.5 k
0.15 µF
Fig. A. Using an AC voltmeter to check AC leakage.
Ω
Earth Ground
AC
voltmete
(0.75 V)
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.
This label is located on the rear 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.
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 viscous (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.
4
Service Position of the Tape Cassette Mec hanism Dec k
HCD-HP7
Service Position of the CD Mechanism Deck
Connect jig (extension cable J-2501-248-A)
to the MAIN board (CN302) and CONNECTOR board (CN701).
Connect jig (extension cable J-2501-011-B)
to the MAIN board (CN301) and BD board (CN710).