CMT-EP515, HCD-EP515 - Sony Audio Service Manual (repair manual)

cmt-ep515, hcd-ep515 service manual
Model
CMT-EP515 HCD-EP515
Pages
40
Size
3.34 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cmt-ep515-hcd-ep515.pdf
Date

Read Sony CMT-EP515 / HCD-EP515 Service Manual online

HCD-EP515
US Model
Canadian Model
AEP Model
 UK Model
E Model
SERVICE MANUAL
MICRO HI-FI COMPONENT SYSTEM
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-877-160-03
2003G16-1
© 2003.07
HCD-EP515 is the Amplifier, CD player, Tape
Deck and Tuner section in CMT-EP515.
SPECIFICATIONS
Ver 1.2  2003. 07
Model Name Using Similar Mechanism
NEW
CD
CD Mechanism Type
KSM-213EDP
Section
Base Unit Name
BU-K7BD44B
Optical Pick-up Name
KSS-213E/C2N
TAPE
Model Name Using Similar Mechanism
NEW
Section
Tape Transport Mechanism Type
CMAL1Z240A
CD player section
System
Compact disc and digital 
audio system
Laser
Semiconductor laser 
(
λ
=780 nm)
Emission duration: 
continuous
Frequency response
2 Hz – 20 kHz (
±0.5 dB)
Tape deck section
Recording system
4-track 2-channel stereo
Frequency response
50 – 13,000 Hz (
±3 dB), 
using Sony TYPE I 
cassettes
Amplifier section
AUDIO POWER SPECIFICATIONS:
(U.S.A. model only)
POWER OUTPUT AND TOTAL HARMONIC 
DISTORTION:
With 6-ohm loads, both channels driven, from 120 - 
10,000 Hz; rated 14 watts per channel minimum RMS 
power, with no more than 10% total harmonic 
distortion from 250 milliwatts to rated output.
North American model:
Continuous RMS power output (reference):
15 + 15 W 
(6 ohms at 1 kHz, 10% 
THD)
European model:
DIN power output (rated): 11 + 11 W 
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
15 + 15 W 
(6 ohms at 1 kHz, 10% 
THD)
Music power output (reference):
25 + 25 W
Other models: 
The following measured at AC 230 V or AC 120 V, 50/
60 Hz
DIN power output (rated): 11 + 11 W 
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
15 + 15 W 
(6 ohms at 1 kHz, 10% 
THD)
Inputs
MD IN (phono jacks):
Sensitivity 800 mV, 
impedance 47 kilohms
Outputs
PHONES (stereo minijack):
Accepts headphones with 
an impedance of 8 ohms or 
more
SPEAKER:
Accepts impedance of 6 to 
16 ohms.
— Continued on next page —
2
HCD-EP515
1. SERVICING NOTES
······················································· 3
2. GENERAL
·········································································· 5
3. DISASSEMBLY
3-1. Rear Cabinet ··································································· 7
3-2. CD Cabinet Section, Front Panel Section ······················· 8
3-3. CD Mechanism Deck (KSM-213EDP) ··························· 8
3-4. CONTROL Board, BACK LIGHT Board ······················ 9
3-5. Tape Mechanism Deck (CMAL1Z240A) ······················· 9
3-6. Cassette Door Assy ······················································· 10
3-7. POWER Board, MAIN Board ······································ 10
3-8. Optical Pick-up (KSS-213E/C2N) ································ 11
4. MECHANICAL ADJUSTMENTS
····························· 12
5. ELECTRICAL ADJUSTMENTS
······························· 13
6. DIAGRAMS
······································································ 15
6-1. Block Diagram  – CD Section – ··································· 17
6-2. Block Diagram  – Main Section – ································ 18
6-3. Printed Wiring Board  – CD Section – ························· 19
6-4. Schematic Diagram  – CD Section – ···························· 20
6-5. Printed Wiring Borads  – Main Section – ····················· 21
6-6. Schematic Diagram  – Main Section – ························· 22
6-7. Printed Wiring Board  – Control Section – ··················· 23
6-8. Schematic Diagram  – Control Section – ······················ 24
6-9. Printed Wiring Board  – Power Section – ····················· 25
6-10. Schematic Diagram  – Power Section – ······················ 25
6-11. IC Pin Function Description ······································· 28
7. EXPLODED VIEWS
7-1. Cabinet Section ····························································· 30
7-2. Front Panel Section ······················································· 31
7-3. CD Cabinet Section ······················································ 32
7-4. Optical Pick-up Block (KSM-213EDP) ······················· 33
8. ELECTRICAL PARTS LIST
······································· 34
TABLE OF CONTENTS
General
Power requirements
North American model:
120 V AC, 60 Hz
European model:
230 V AC, 50/60 Hz
Other models:
230 V AC, 50/60 Hz
Power consumption
North American model:
50 watts
European model:
50 watts 
0.3 watts (in the standby 
mode)
Other models:
50 watts
Dimensions (w/h/d)
Approx. 163 
 × 233   × 237 
mm
Mass
Approx. 3.6 kg
Supplied accessories
Remote (1)
R6 (size AA) batteries (2)
AM loop antenna (1)
FM lead antenna (1)
Design and specifications are subject to change 
without notice.
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
87.5 – 108.0 MHz (50-kHz 
step)
Antenna
FM lead antenna
Antenna terminals
75 ohms balanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
Pan-American model:
530 – 1,710 kHz 
(with the tuning interval 
set at 10 kHz)
531 – 1,602 kHz 
(with the tuning interval 
set at 9 kHz)
European model:
531 – 1,602 kHz 
(with the tuning interval 
set at 9 kHz)
Antenna
AM loop antenna, external 
antenna terminal
Intermediate frequency
450 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)
Ver 1.2  2003. 07
3
HCD-EP515
SECTION 1
SERVICING NOTES
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
0.15 
µ
F
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
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)
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.
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 pick-
up 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.
NOTES  ON  HANDLING  THE  OPTICAL  PICK-UP
BLOCK  OR  BASE  UNIT
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged 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-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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 
0
 SUR LES
DIAGRAMMES SCHÉMATIQUES 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.
4
HCD-EP515
Service Position of the CD Mechanism Deck
Service Position of the Tape Cassette Mechanism Deck
Page of 40
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