CDP-EX100, MHC-EX100AV, MHC-EX50, MHC-EX70AV, MHC-EX90 - Sony Audio Service Manual (repair manual)

cdp-ex100, mhc-ex100av, mhc-ex50, mhc-ex70av, mhc-ex90 service manual
Model
CDP-EX100 MHC-EX100AV MHC-EX50 MHC-EX70AV MHC-EX90
Pages
17
Size
399.95 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cdp-ex100-mhc-ex100av-mhc-ex50-mhc-ex70av-mhc-ex90.pdf
Date

Read Sony CDP-EX100 / MHC-EX100AV / MHC-EX50 / MHC-EX70AV / MHC-EX90 Service Manual online

– 1 –
CDP-EX100
SERVICE MANUAL
AEP Model
UK Model
E Model
Model Name Using Similar Mechanism
CDP-EX10
CD Mechanism Type
CDM28-5BD19
Base Unit Name
BU-5BD19
SPECIFICATIONS
COMPACT DISC PLAYER
MICROFILM
This set is the CD player section in
MHC-EX50/EX70AV/EX100AV.
– 2 –
The laser component in this product
is capable of emitting radiation
exceeding the limit for Class 1.
The following caution label is located inside of the unit.
SAFETY-RELATED  COMPONENT  WARNING!!
COMPONENTS  IDENTIFIED  BY  MARK  
!
  OR  DOTTED  LINE
WITH  MARK  
!
  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.
TABLE OF CONTENTS
1. SERVICE NOTE
.................................................................. 3
2. GENERAL
............................................................................. 4
3. DISASSEMBLY
3-1. Loading Panel .......................................................................... 4
3-2. MD Block ................................................................................ 5
3-3. Holder (BU) Assy .................................................................... 5
4. ELECTRICAL ADJUSTMENTS
.................................... 6
5. DIAGRAMS
5-1. IC Pin Function ....................................................................... 8
5-2. Circuit Boards Location ........................................................ 10
5-3. Printed Wiring Board – BD Section – ................................... 11
5-4. Schematic Diagram – BD Section – ...................................... 13
5-5. Printed Wiring Boards – Main Section – .............................. 16
5-6. Schematic Diagram – Main Section – ................................... 19
6. EXPLODED VIEWS
6-1. Chassis Section ...................................................................... 26
6-2. Front Panel Section ............................................................... 27
6-3. CD Mechanism Section ......................................................... 28
6-4. Base Unit Section .................................................................. 29
7. ELECTRICAL PARTS LIST
.......................................... 30
This appliance is classified
as a CLASS 1 LASER
product.
The CLASS 1 LASER
PRODUCT MARKING is
located on the rear exterior.
CAUTION
Use of controls or adjustments or performance of proce-
dures other than those specified herein may result in haz-
ardous radiation exposure.
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.
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK 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 breakdown 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.
– 3 –
• FL tube/ KEY check mode
After to enter the power on, when 
p button,  TIME  button and
)  button are pressed at the same time, you will be check FL
tube.
Whenever press the above mentioned three buttons at the same
time, change to check mode of FL tube.
Under check mode of FL tube when any pressing button or turn
= AMS +  button, change to KEY check mode.
To finish KEY check mode, press the above mentioned three
buttons at the same time.
All FL tube indicator light on
A segment pattern mode 1
A segment pattern mode 2
Finish the test mode
Note 1)
All FL tube light on mode is kept when three buttons which is
pressed to enter all FL tube light on mode, release at the same time.
If you will be release failure them, it is moved to KEY check mode
after all FL tube light on mode.
Note 2)
Under KEY check mode, every time and button pressed or
 
= AMS +  button turned on, figure on  “ KEY= ” of FL tube
is increased.
• How to operate with a single unit
Normally this set does not operate with a single unit.
When you must be mending, connect to other unit.
If the SYSTEM POWER switch of the amplifire is set to ON, the
power supply of the set is turned on.
In case of other unit is nothing, the service box (PFJ-1) and
exclusive jig (J-2501-078-A) are necessary to operate the set with
a single unit.
In case of above mentioned, press the 
p button and  TIME  button
at the same time, to enter the power on.
SECTION 1
SERVICE NOTE
nn
n
(Press three buttons at the same time)
(Press three buttons at the same time)
(Press three buttons at the same time)
KEY check mode
(
Any pressing button or turn  
= AMS +  button.
9
(
(Press three buttons at the same time)
SERVICE BOX (PFJ-1)
POWER SW
FH-E939, 838, 737
CDP/TC
CN904
17P
CN902
7P
CORD WITH CONNECTOR 17P
(attached to PFJ-1)
JIG
(J-2501-078-A)
CORD WITH CONNECTOR 7P
(attached to set)
SET
CN301 7P
SYSTEM CONTROL
– 4 –
SECTION 2
GENERAL
Front Panel
Display Window
SECTION 3
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
3-1. LOADING PANEL
1
Turn the cam in the
    direction of  arrow.
bottom of chassis
2
 Pull out the disc table.
4
 Remove the loading panel
     in the direction of arrow.
3
 claws
bottom of chassis
This section is extracted from
instruction manual.
Page of 17
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Download Sony CDP-EX100 / MHC-EX100AV / MHC-EX50 / MHC-EX70AV / MHC-EX90 Service Manual (Repair Manual)

Here you can read online and download Sony CDP-EX100 / MHC-EX100AV / MHC-EX50 / MHC-EX70AV / MHC-EX90 Service Manual in PDF. CDP-EX100 / MHC-EX100AV / MHC-EX50 / MHC-EX70AV / MHC-EX90 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony CDP-EX100 / MHC-EX100AV / MHC-EX50 / MHC-EX70AV / MHC-EX90 Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.