CMT-F3MD, HCD-F3MD — Sony Audio Service Manual (repair manual)

Model
CMT-F3MD HCD-F3MD
Pages
96
Size
10.5 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cmt-f3md-hcd-f3md.pdf
Date

View Sony CMT-F3MD / HCD-F3MD Service Manual online

SERVICE MANUAL
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
87.5 – 108.0 MHz
(50 kHz step)
Aerial
FM lead aerial
Aerial terminals
75 ohms unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
531 – 1,602 kHz
(with the interval set at 9 kHz)
530 – 1,710 kHz
(with the interval set at 10 kHz)
Aerial
AM loop aerial
External aerial terminals
Intermediate frequency
450 kHz
General
Power requirements
110 – 120 V or 220 – 240 V
AC, 50/60 Hz
Power consumption
70 watts during normal operation
Approx. 3 watts in standby mode
(clock displayed)
Approx. 1 watt in standby mode
(clock not displayed)
Dimensions (w/h/d) incl. projecting parts and controls
Approx. 215 
×
 150 
×
 335 mm
Mass
Approx. 4.9 kg
Design and specifications are subject to change
without notice.
Amplifier section
DIN power output (Rated):20 + 20 watts (6 ohms at 1 kHz,
DIN, 240 V)
18 + 18 watts (6 ohms at 1 kHz,
DIN, 220 V)
Continuous RMS power output (Reference):
25 + 25 watts (6 ohms at 1 kHz,
10% THD, 240 V)
23 + 23 watts (6 ohms at 1 kHz,
10% THD, 220 V)
Peak Music Power Output: 400 watts
Inputs
TAPE IN (phono jacks):
voltage 250 mV, impedance
47 kilohms
Outputs
TAPE  OUT (phono jacks): voltage 250 mV,  impedance
1 kilohm
PHONES (stereo minijack):
accepts headphones of 8 ohms or
more.
SPEAKER:
accepts impedance of 6 to 16
ohms.
CD player  section
System
Compact disc and digital audio
system
Laser
Semiconductor laser (
λ
=780 nm)
Emission duration: continuous
Laser output
Max. 44.6 
µ
W*
*This output is the value measured
at a distance of 200 mm from the
objective lens surface on the
Optical Pick-up Block with a
7 mm aperture.
Frequency response
2 Hz – 20 kHz
MD deck  section
System
MiniDisc digital audio system
Laser
Semiconductor laser (
λ
=780 nm)
Emission duration: continuous
Laser output
Max. 44.6 
µ
W*
*This output is the value measured
at a distance of 200 mm from the
objective lens surface on the
Optical Pick-up Block with a
7 mm aperture.
Sampling frequency
44.1 kHz
Frequency response
5 Hz –
 
20 kHz
COMPACT DISC DECK RECEIVER
SPECIFICATIONS
HCD-F3MD
E Model
HCD-F3MD is the Amplifier, CD player, MD
Deck and Tuner section in CMT-F3MD.
Model Name Using Similar Mechanism
HCD-MD373
CD Mechanism Type
CDM55A-5SBD32
Base Unit Name
BU-5SBD32
Optical Pick-up Name
KSS-213BH/Z-NP
Model Name Using Similar Mechanism
HCD-MD373
MD Mechanism Type
MDM-5GA
Base Unit Name
MBU-5A
Optical Pick-up Name
KMS-260B/S1NP
CD
Section
MD
Section
US and foreign patents licensed from Dolby
Laboratories.
2
PROCEDURE FOR USING THE SELF-DIAGNOSIS FUNCTION (ERROR HISTORY DISPLAY MODE)
Note 1:
About “R”
As this unit has only a few buttons, some operations require the use of remote commander (RM-SF3MD/provided with unit: 1-476-068-11)
buttons. These operations are indicated as “R” in this manual.
Example:
MENU/NO “R”
...Press the 
[MENU/NO]
 button of the remote commander.
Note 2:
Incorrect operations may be performed if the MD test mode is not entered properly.
In this case, press the I/
1
button to turn the power off, and retry to enter the MD test mode.
Note 3:
Perform the self-diagnosis function in the “error history display mode” in the MD test mode. The following describes the least required
procedure. Be careful not to enter other modes by mistake. If you set other modes accidentally, press the 
MENU/NO “R”
 button to exit the
mode.
Procedure:
1. Press the
I/1
button to turn the power on.
2. Press the 
[FUNCTION]
 button to set the MD function.
3. Press three buttons of
s
(MD) ,
z
REC
and
I/1
simultaneously to enter the MD test mode and display “[Check]”.
4. Press the
l
 
m
or
M
 
L
button to display “[Service]”, and press the
ENTER/YES “R”
button.
5. Press the
l
 
m
or
M
 
L
button to display “ERR DP MODE”.
6. Press the
ENTER/YES “R”
button to enter the error history mode and display “total rec”.
7. Select the contents to be displayed or executed using the
l
 
m
or
M
 
L
button.
8. Press the 
[CD-MD SYNC]
 button will display or execute the contents selected.
9. Press the 
[CD-MD SYNC]
 button another time returns to step 7.
10. Press the
MENU/NO “R”
button displays “ERR DP MODE” and release the error history mode.
11. To release the MD test mode, press the 
[REPEAT]
 button to display “Initialize” and release the MD test mode.
SELF-DIAGNOSIS  FUNCTION
The self-diagnosis function consists of error codes for customers, which are displayed automatically when errors occur, and error codes,
which show the error history in the test mode during servicing. For details on how to view error codes for the customer, refer to the
following box in the instruction manual. For details on how to check error codes during servicing, refer to the following “Procedure for
using the Self-Diagnosis Function (Error History Display Mode)”.
Self-diagnosis Display
This system has a Self-diagnosis display function
to let you know if there is a system malfunction.
The display shows a code made up of three letters
and a message alternately to show you the
problem. To solve the problem refer to the
following list. If any problem persists, consult
your nearest Sony dealer.
C11/Protected
The MD is protected against erasure.
cRemove the MD and slide the tab to close the
slot (see page 24).
C12/Cannot Copy
You  tried to record a CD or MD with a format
that the system does not support, such as a CD-
ROM.
cRemove the disc and turn off the system once,
then turn it on again.
C13/REC Error
Recording could not be performed properly.
cMove the system to a stable place, and start
recording over from the beginning.
The MD is dirty or scratched, or the MD does
not meet the standards.
cReplace the MD and start recording over from
the beginning.
C13/Read Error
The MD deck cannot read the disc information
properly.
cRemove the MD once, then insert it again.
C14/Toc Error
The MD deck cannot read the disc information
properly.
cReplace the MD.
cErase all the recorded contents of the MD
using the All Erase function on page 38.
C41/Cannot Copy
The sound source is a copy of a commercially
available music software, or you tried to record
a CD-R (Recordable CD).
cThe Serial Copy Management System
prevents making a digital copy (see page 53).
You  cannot record a CD-R.
3
ITEMS  OF  ERROR  HISTORY  MODE  ITEMS  AND  CONTENTS
Selecting the Test Mode
Display
Details of History
E00
No error
E01
Disc error. PTOC cannot be read
(DISC ejected)
E02
Disc error. UTOC error
(DISC not ejected)
E03
Loading error
E04
Address cannot be read (Servo has deviated)
Table of Error Codes
Error Code
Error Code
Details of Error
total rec
Displays the recording time.
Displayed as “rssssssh”.
The displayed time is the total time the laser is set to the high power state.
This is about 1/4 of the actual recording time.
The time is displayed in decimal digits from 0h to 65535h.
total play
Displays the play time.
Displayed as “pssssssh”. The time displayed is the total actual play time. Pauses are not counted.
The time is displayed in decimal digits from 0h to 65535h.
retry err
Displays the total number of retries during recording and number of retry errors during play.
Displayed as “rss pss”.
“r” indicates the retries during recording while “p” indicates the retry errors during play.
The number of retries and retry errors are displayed in hexadecimal digits from 00 to FF.
total err
Displays the total number of errors.
Displayed as “total ss”.
The number of errors is displayed in hexadecimal digits from 00 to FF.
err history
Displays the 10 latest errors.
Displayed as “0s [email protected]@”.
s indicates the history number. The smaller the number, the more recent is the error. (00 is the latest).
@@ indicates the error code.
Refer to the following table for the details. The error history can be switched by pressing the 
l
 
m
or
 
M
 
L
button.
er refresh
Mode which erases the “retry err”, “total err”, and “err history” histories.
When returning the unit to the customer after completing repairs, perform this to erase the past error history.
After pressing the 
[CD-MD SYNC]
 button and “er refresh?” is displayed, press the
ENTER/YES “R”
button to
erase the history.
“Complete!” will be displayed momentarily.
Be sure to check the following when this mode has been executed.
• The data has been erased.
• The mechanism operates normally when recording and play are performed.
tm refresh
Mode which erases the “total rec” and “total play” histories.
These histories serve as approximate indications of when to replace the optical pick-up.
If the optical pickup has been replaced, perform this operation and erase the history.
After pressing the 
[CD-MD SYNC]
 button and “tm refresh?” is displayed, press the
ENTER/YES “R”
button to
erase the history.
“Complete!” will be displayed momentarily.
Be sure to check the following when this mode has been executed.
• The data has been erased.
• The mechanism operates normally when recording and play are performed.
E05
FOK has deviated
E06
Cannot focus (Servo has deviated)
E07
Recording retry
E08
Recording retry error
E09
Playback retry error
(Access error)
E0A
Playback retry error (C2 error)
Details of Error
4
TABLE  OF  CONTENTS
SELF-DIAGNOSIS FUNCTION
.....................................
2
1.
SERVICING  NOTES
...............................................
5
2.
GENERAL
................................................................... 16
3.
DISASSEMBLY
......................................................... 18
4.
TEST MODE
............................................................... 26
5.
ELECTRICAL  ADJUSTMENTS
MD Section ..................................................................... 30
CD Section ...................................................................... 38
6.
DIAGRAMS
6-1. Block Diagram  – CD SERVO Section – ....................... 39
6-2. Block Diagram  – MD SERVO Section (1/2) – ............. 40
6-3. Block Diagram  – MD SERVO Section (2/2) – ............. 41
6-4. Block Diagram  – MAIN Section – ................................ 42
6-5. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 43
6-6. Printed Wiring Board  – BD (CD) Board – .................... 44
6-7. Schematic Diagram  – BD (CD) Board – ....................... 45
6-8. Schematic Diagram  – BD (MD) Board (1/2) – ............. 46
6-9. Schematic Diagram  – BD (MD) Board (2/2) – ............. 47
6-10. Printed Wiring Board  – BD (MD) Board – ................... 48
6-11. Schematic Diagram  – BD SW (MD) Board – ............... 49
6-12. Printed Wiring Board  – BD SW (MD) Board – ............ 49
6-13. Schematic Diagram  – LOADING (CD) Board – .......... 49
6-14. Printed Wiring Board  – LOADING (CD) Board – ....... 49
6-15. Printed Wiring Board  – MD DIGITAL Board – ........... 50
6-16. Schematic Diagram  – MD DIGITAL Board – .............. 51
6-17. Printed Wiring Board  – MAIN Board – ........................ 52
6-18. Schematic Diagram  – MAIN Board (1/3) – .................. 53
6-19. Schematic Diagram  – MAIN Board (2/3) – .................. 54
6-20. Schematic Diagram  – MAIN Board (3/3) – .................. 55
6-21. Printed Wiring Boards  – AMP/SP Boards – .................. 56
6-22. Schematic Diagram  – AMP/SP Boards – ...................... 57
6-23. Printed Wiring Board  – PANEL Board – ...................... 58
6-24. Schematic Diagram  – PANEL Board  – ........................ 59
6-25. Printed Wiring Board  – POWER Board – ..................... 60
6-26. Schematic Diagram  – POWER Board – ........................ 61
6-27. IC Pin Function Description ........................................... 70
7.
EXPLODED  VIEWS
................................................ 80
8.
ELECTRICAL  PARTS  LIST
............................... 86
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 dur-
ing 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  PUB-
LISHED  BY  SONY.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
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.
The following caution label is located inside the unit.
Page of 96
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  • Parts list (bill of materials).