DOWNLOAD Sony CMT-EX5 / HCD-EX5 Service Manual ↓ Size: 9.5 MB | Pages: 62 in PDF or view online for FREE

Model
CMT-EX5 HCD-EX5
Pages
62
Size
9.5 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cmt-ex5-hcd-ex5.pdf
Date

Sony CMT-EX5 / HCD-EX5 Service Manual ▷ View online

2
HCD-EX5
       After correcting the original service problem, perform the
following safety checks 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
    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 2V AC range are suitable. (See
Fig. A)
SAFETY  CHECK-OUT
To Exposed Metal 
Parts on Set
0.15 
µ
F
1.5 k
AC
Voltmeter
(0.75 V)
Earth Ground
Fig. A.  Using an AC voltmeter to check AC leakage.
General
Power requirements
North American model:
120 V AC, 60 Hz
European model:
230 V AC, 50/60 Hz
Mexican model:
120 V AC, 60 Hz
Australian model:
220 – 240 V AC,
50/60 Hz
Korean model:
220 V AC, 60 Hz
Chinese model:
220 V AC, 50/60 Hz
Other models:
110 – 240 V AC,
50/60 Hz
Power consumption
European model:
See the nameplate
0.25 W (at the Power
Saving Mode)
Other models:
See the nameplate
Dimensions (w/h/d)
Approx. 186 
× 235 ×
157 mm incl. projecting
parts and controls
Mass
Approx. 3.0 kg
Design and specifications are subject to change
without notice.
3
HCD-EX5
TABLE OF CONTENTS
1. SERVICING NOTES
······················································· 4
2. GENERAL
·········································································· 5
3. DISASSEMBLY
································································ 8
3-1. Case ··············································································· 9
3-2. OC Boad,OS Boad ························································ 9
3-3. Glass Window Assy (U) ·············································· 10
3-4. POWER Board ···························································· 10
3-5. BD Board ····································································· 11
3-6. MAIN Board, Tunner ·················································· 11
3-7. CD Mechanism (CDM71C-31BD63A) ······················· 12
3-8. Base Unit(BU-31BD63A) ··········································· 12
3-9. Holder Assy, Sled Motor Assy (M102) ······················· 13
3-10. Case Button Assy, LID Board ····································· 13
3-11. LID (CD) ····································································· 14
3-12. Ornament (Mecha Panel) ············································· 14
3-13. L.MOTOR Board ························································· 15
3-14. C MOTOR Board, L.SENSOR Board ························· 15
3-15. ENCODER Board, D.SENSOR Board ······················· 16
3-16. RTR Pulley Assy, RTL Pulley Assy,
Belt (CDM71), Belt (Roller) (L) ································· 17
3-17. SPT Pulley Assy, Gear (RT) Assy, Gear (KT),
Belt (CDM71) ····························································· 19
4. TEST MODE
···································································· 21
5. ELECTRICAL ADJUSTMENTS
······························· 24
6. DIAGRAMS
······································································ 25
6-1. Block Diagrams ··························································· 25
6-2. Circuit Boards Location ·············································· 28
6-3. Schematic Diagram – BD Board – ······························ 29
6-4. Printed Wiring Board – BD Board (Side A) – ············· 30
6-5. Printed Wiring Board – BD Board (Side B) – ············· 31
6-6. Schematic Diagram – MAIN Section (1/2) – ·············· 32
6-7. Schematic Diagram – MAIN Section (2/2) – ·············· 33
6-8. Printed Wiring Board – MAIN Board (Side A) – ········ 34
6-9. Printed Wiring Board – MAIN Board (Side B) – ········ 35
6-10. Printed Wiring Board – PANEL Section (Side A) – ···· 36
6-11. Printed Wiring Board – PANEL Section (Side B) – ···· 37
6-12. Schematic Diagram – MOTOR Section – ··················· 38
6-13. Printed Wiring Board – MOTOR Section – ················ 39
6-14. Printed Wiring Board – POWER Board (Side A) – ···· 40
6-15. Printed Wiring Board – POWER Board (Side B) – ···· 41
6-16. Schematic Diagram – POWER Section – ··················· 42
6-17. IC Pin Function Description ········································ 43
7. EXPLODED VIEWS
······················································ 47
7-1. Case Section ································································ 47
7-2. Chassis Section-1 ························································ 48
7-3. Chassis Section-2 ························································ 49
7-4. Mechanism Section(CDM71C-31BD63A)-1 ·············· 50
7-5. Mechanism Section(CDM71C-31BD63A)-2 ·············· 51
7-6. Base Unit (BU-31BD63A) ·········································· 52
8. ELECTRICAL PARTS LIST
······································· 53
4
HCD-EX5
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.
This appliance is classified as a CLASS 1 LASER product. The
CLASS 1 LASER PRODUCT MARKING is located on the rear
exterior.
Laser component in this product is capable
of emitting radiation exceeding the limit for
Class 1.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
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 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.
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 pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
SECTION 1
SERVICING NOTES
This caution
label is
located inside
the unit.
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.
5
HCD-EX5
SECTION 2
GENERAL
This section is extracted
from instruction manual.
Main unit
ALPHABETICAL ORDER
A – Q
Disc slot 2 (23)
Display window 4
DISPLAY qa (16, 19, 20)
FUNCTION 0 (9 - 13, 15, 22,
24)
R – Z
Remote sensor qs
TUNER/BAND 9 (13 - 15, 24)
TUNING +/– 6 (13 -15)
VOLUME +/– 5 (18)
BUTTON DESCRIPTIONS
@/1 (power) 1
Z 3
./> 6
m/M 6
x 7
NX 8
To open the front cover, push
down on the knob under the
display window.
Page of 62
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Sony CMT-EX5 / HCD-EX5 Service Manual ▷ Download

  • DOWNLOAD Sony CMT-EX5 / HCD-EX5 Service Manual ↓ Size: 9.5 MB | Pages: 62 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony CMT-EX5 / HCD-EX5 in PDF for free, which will help you to disassemble, recover, fix and repair Sony CMT-EX5 / HCD-EX5 Audio. Information contained in Sony CMT-EX5 / HCD-EX5 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.