Sony HCD-EX66 / HCD-EX88 / HCD-EX99 / MHC-EX66 / MHC-EX88 / MHC-EX99 Service Manual ▷ View online
HCD-EX66/EX88/EX99
2
NOTES ON CHIP COMPONENT REPLACEMENT
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
• 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 soldering iron around 270 °C during
• 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.
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
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.
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specifi ed herein may result in hazardous radia-
tion exposure.
Use of controls or adjustments or performance of procedures
other than those specifi ed herein may result in hazardous radia-
tion exposure.
This appliance is classifi ed as
a CLASS 1 LASER product.
This marking is located on the
rear exterior.
a CLASS 1 LASER product.
This marking is located on the
rear exterior.
AM tuner section:
Tuning range
Latin American models:
Tuning range
Latin American models:
530 kHz ‒ 1,710 kHz (10 kHz step)
531 kHz ‒ 1,710 kHz (9 kHz step)
Saudi Arabia model:
531 kHz ‒ 1,602 kHz (9 kHz step)
Other models:
531 kHz ‒ 1,602 kHz (9 kHz step)
530 kHz ‒ 1,610 kHz (10 kHz step)
Intermediate frequency: 400 kHz
General
Power requirements
Mexican model:
AC 127 V, 60 Hz
Argentine model:
AC 220 V ‒ 240 V, 50/60 Hz
Other models:
AC 120 V ‒ 240 V, 50/60 Hz
Power consumption
HCD-EX99: 85 W
(0.5 W at the Power Saving Mode)
HCD-EX88: 70 W
(0.5 W at the Power Saving Mode)
HCD-EX66: 45 W
(0.5 W at the Power Saving Mode)
Dimensions (W/H/D) (excl. speakers)
Approx. 210 mm × 312 mm ×
375 mm
Mass (excl. speakers)
HCD-EX99/EX88: Approx. 3.8 kg
HCD-EX66: Approx. 3.6 kg
Design and specifi cations are subject to
change without notice.
change without notice.
HCD-EX66/EX88/EX99
3
1.
SERVICING NOTES
............................................. 4
2. DISASSEMBLY
2-1. Side Case (L), Side Case (R) ......................................... 9
2-2. Top Panel Section ........................................................... 9
2-3. Shield (Power-PWB) ...................................................... 10
2-4. Front Panel Section ......................................................... 10
2-5. Back Panel Section ......................................................... 11
2-6. AMP SMPS Board .......................................................... 12
2-7.
2-2. Top Panel Section ........................................................... 9
2-3. Shield (Power-PWB) ...................................................... 10
2-4. Front Panel Section ......................................................... 10
2-5. Back Panel Section ......................................................... 11
2-6. AMP SMPS Board .......................................................... 12
2-7.
Knob (VOL) .................................................................... 13
2-8. CD Mechanism Deck ...................................................... 13
2-9.
2-9.
Base Unit ......................................................................... 14
2-10. Optical Pick-up ............................................................... 14
3.
TEST MODE
............................................................ 15
4.
ELECTRICAL ADJUSTMENTS
........................ 16
5. DIAGRAMS
5-1. Block Diagram –CD Section– ........................................ 17
5-2. Block Diagram –Tuner/Audio Section– ......................... 18
5-3. Block Diagram –Display/Power Section– ...................... 19
5-4. Printed Wiring Board –CD Section– .............................. 21
5-5. Schematic Diagram –CD Section (1/2)– ........................ 22
5-6. Schematic Diagram –CD Section (2/2)– ........................ 23
5-7. Printed Wiring Board –Panel Section– ........................... 24
5-8. Schematic Diagram –Panel Section (1/3)– ..................... 25
5-9. Schematic Diagram –Panel Section (2/3)– ..................... 26
5-10. Schematic Diagram –Panel Section (3/3)– ..................... 27
5-11. Schematic Diagram –Tuner Section– ............................. 28
5-12. Printed Wiring Board –Tuner Section– ........................... 29
5-13. Printed Wiring Board –Module Section– ........................ 29
5-14. Schematic Diagram –Module Section– .......................... 30
5-15. Printed Wiring Board
5-2. Block Diagram –Tuner/Audio Section– ......................... 18
5-3. Block Diagram –Display/Power Section– ...................... 19
5-4. Printed Wiring Board –CD Section– .............................. 21
5-5. Schematic Diagram –CD Section (1/2)– ........................ 22
5-6. Schematic Diagram –CD Section (2/2)– ........................ 23
5-7. Printed Wiring Board –Panel Section– ........................... 24
5-8. Schematic Diagram –Panel Section (1/3)– ..................... 25
5-9. Schematic Diagram –Panel Section (2/3)– ..................... 26
5-10. Schematic Diagram –Panel Section (3/3)– ..................... 27
5-11. Schematic Diagram –Tuner Section– ............................. 28
5-12. Printed Wiring Board –Tuner Section– ........................... 29
5-13. Printed Wiring Board –Module Section– ........................ 29
5-14. Schematic Diagram –Module Section– .......................... 30
5-15. Printed Wiring Board
–AMP SMPS Section (HCD-EX66)– ............................. 31
5-16. Schematic Diagram
–AMP SMPS Section (1/2) (HCD-EX66)– .................... 32
5-17. Schematic Diagram
–AMP SMPS Section (2/2) (HCD-EX66)– .................... 33
5-18. Printed Wiring Board
–AMP SMPS Section (HCD-EX88)– ............................. 34
5-19. Schematic Diagram
–AMP SMPS Section (1/2) (HCD-EX88)– .................... 35
5-20. Schematic Diagram
–AMP SMPS Section (2/2) (HCD-EX88)– .................... 36
5-21. Printed Wiring Board
–Regulator Section (HCD-EX88)– ................................. 37
5-22. Schematic Diagram
–Regulator Section (HCD-EX88)– ................................. 38
5-23. Printed Wiring Board
–AMP SMPS Section (HCD-EX99)– ............................. 39
5-24. Schematic Diagram
–AMP SMPS Section (1/2) (HCD-EX99)– .................... 40
5-25. Schematic Diagram
–AMP SMPS Section (2/2) (HCD-EX99)– .................... 41
5-26. Printed Wiring Board
–Regulator Section (HCD-EX99)– ................................. 42
5-27. Schematic Diagram
–Regulator Section (HCD-EX99)– ................................. 43
6.
EXPLODED VIEWS
6-1. Overall Section ............................................................... 51
6-2. Front Panel Section ......................................................... 52
6-3. Top Panel Section ........................................................... 53
6-4. Chassis Section ............................................................... 54
6-2. Front Panel Section ......................................................... 52
6-3. Top Panel Section ........................................................... 53
6-4. Chassis Section ............................................................... 54
7.
ELECTRICAL PARTS LIST
.............................. 55
Accessories are given in the last of the electrical parts list.
TABLE OF CONTENTS
HCD-EX66/EX88/EX99
4
SECTION 1
SERVICING NOTES
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
Boards requiring use of unleaded solder are printed with the lead-
free 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
• 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.
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
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 fl ow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
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.
also be added to ordinary solder.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electro-
static 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 fl exible board is easily damaged and should be handled with
care.
static 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 fl exible 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 refl ective 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.
The laser beam on this model is concentrated so as to be focused
on the disc refl ective 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.
• Abbreviation
AR
AR
: Argentina model
E2
: 120V AC area in E model
E4
: 220 – 240V AC area in E model
E51
: Chilean and Peruvian models
EA
: Saudi Arabia model
MX
: Mexican model
Model
Part No.
EX99: MX model
4-263-771-0[]
EX99: AR model
4-263-772-0[]
EX88: E2, E51 models
4-263-773-0[]
EX88: MX model
4-263-774-0[]
EX88: AR model
4-263-775-0[]
EX66: E4 model
4-263-778-0[]
EX66: EA model
4-263-779-0[]
EX66: E2, E51 models
4-263-780-0[]
EX66: AR model
4-263-782-0[]
EX99: E2, E51 models
*
MODEL IDENTIFICATION
– Model Number Lavel –
– Model Number Lavel –
RELEASING THE DISC TRAY LOCK
The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.
The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.
Releasing Procedure:
1. Press [
1. Press [
?/1
] button to turn the power on.
2. Press the [FUNCTION] button to select CD function.
3. While pressing the [
3. While pressing the [
x
] button for more 5 seconds.
4. The message “CHILD LOCK OFF” is displayed and the disc
tray is unlocked.
Note: When “CHILD LOCK ON” is displayed, the slot lock is not re-
leased by turning power on/off with the [?/1] button.
*
: Since the HCD-EX99: E2 and E51 models have their model
number labels marked directly on the back panel, the model
number labels have no relative part numbers.
number labels have no relative part numbers.
Because of this, determine the model through the marked model
number when comparing the difference between these models.
Parts No.
HCD-EX66/EX88/EX99
5
SERVICE POSITION OF CDM76
SERVICE POSITION OF BOARDS
top panel section
BD76 board
stand
AMP SMPS board
PANEL board
tuner unit
(TUNER board)
(TUNER board)