CMT-PX333, HCD-PX333 - Sony Audio Service Manual (repair manual)

Model
CMT-PX333 HCD-PX333
Pages
110
Size
14 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cmt-px333-hcd-px333.pdf
Date

View Sony CMT-PX333 / HCD-PX333 Service Manual online

SERVICE MANUAL
Sony Corporation
Personal Audio Group
Published by Sony Engineering Corporation
HCD-PX333
AEP Model
UK Model
E Model
Australian Model
MICRO HI-FI COMPONENT SYSTEM
9-873-168-02
2005B16-1
© 2005.02
SPECIFICATIONS
Ver. 1.1  2005.02
HCD-PX333 is the Amplifier, CD player, MD
Deck and Tuner section in CMT-PX333.
Model Name Using Similar Mechanism
HCD-MD595
CD Mechanism Type
CDM55A-21BD53
Base Unit Name
BU-21BD53
Optical Pick-up Name
OP Assy (A-MAX. 2)
Model Name Using Similar Mechanism
HCD-MD595
MD Mechanism Type
MDM-7X2A
Optical Pick-up Name
KMS-262
CD
 Section
MD
 Section
US and foreign patents licensed from Dolby
Laboratories.
Amplifier section
European model:
DIN power output (Rated):20 + 20 watts
(6 ohms at 1 kHz, DIN,
230 V)
Continuous RMS power output (Reference):
25 + 25 watts
(6 ohms at 1 kHz,
10% THD, 230 V)
Music power output (Reference):
50 + 50 watts
Other models:
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)
Inputs
TAPE IN (phono jacks):
voltage 250 mV,
impedance 47 kilohms
DIGITAL OPTICAL IN (Supported sampling
frequencies: 32 kHz, 44.1 kHz and 48 kHz)
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=800 nm)
Emission duration:
continuous
Frequency response
2 Hz – 20 kHz
MD deck section
System
MiniDisc digital audio
system
Laser
Semiconductor laser
(
λ=780 nm)
Emission duration:
continuous
Sampling frequency
44.1 kHz
Frequency response
5 Hz – 20 kHz
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 unbalanced/
300 ohms balanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
European model:
531 – 1,602 kHz
(with the interval set at
9 kHz)
Other models:
531 – 1,602 kHz
(with the interval set at
9 kHz)
530 – 1,710 kHz
(with the interval set at
10 kHz)
Antenna
AM loop antenna
External antenna terminals
Intermediate frequency
450 kHz
General
Power requirements
European model:
230 V AC, 50/60 Hz
Australian and Hong Kong models:
220 – 240 V AC, 50/60 Hz
Power consumption
European model:
70 watts
0.8 W or less in standby
mode
Other models:
70 watts
Dimensions (w/h/d) incl. projecting parts and controls
Approx. 190 
× 141 ×
325 mm
Mass
Approx. 4.9 kg
Design and specifications are subject to change
without notice.
2
HCD-PX333
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)”.
MD SECTION
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-S55EM/provided with unit: 1-476-664-21)
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
?/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
?/1
button to turn the power on.
2. Press the 
[FUNCTION]
 button to set the MD function.
3. Press three buttons of
M >
 
TUNING+
  , 
[REC MODE]
, and  
. m 
 (MD)
  simultaneously to enter the MD test mode and display “[Check]”.
4. Press the
“R”
or
 > 
“R”
button to display “[Service]”.
5. Press the
ENTER/YES “R”
button to display “AUTO CHECK”, and press the 
>
 “R”
button to display “Err Display”.
6. Press the
ENTER/YES “R”
button to enter the error history mode and display “op rec tm”.
7. Select the contents to be displayed or executed using the
.
 
“R”
or
“R”
button.
8. Press the 
[CD  SYNC  NORMAL]
 button to light up “IT” indicator, then press the 
[REC  MODE]
 button will display or execute the
contents selected.
9. Press the 
[REC MODE]
 button another time returns to step 7.
10. Press the
MENU/NO “R”
button displays “Err Display” and release the error history mode.
11. To release the MD test mode, press the 
[REPEAT STEREO/MONO]
 button to display “Initialize” and release the MD test 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.
t Remove the MD and slide the tab to close the
slot.
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.
t Remove the disc and turn off the system once,
then turn it on again.
C13/REC Error
Recording could not be performed properly.
t Move 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.
t Replace the MD and start recording over from
the beginning.
C13/Read Error
The MD deck cannot read the disc information
properly.
t Remove the MD once, then insert it again.
C14/Toc Error
The MD deck cannot read the disc information
properly.
t Replace the MD.
t Erase all the recorded contents of the MD using
the All Erase function.
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).
t The Serial Copy Management System prevents
making a digital copy (see page 44). You cannot
record a CD-R.
C71/Check OPT-IN
This appears momentarily because of the signal of
the digital broadcast during recording.
t There is no affect on the recorded contents.
No component is connected to the DIGITAL
OPTICAL IN jack, or a digital component is not
connected properly.
t Connect a digital component to the DIGITAL
OPTICAL IN jack properly using a digital
connecting cable.
The connected digital component is not turned on.
t See the operating instructions supplied with the
connected component and confirm whether the
component is turned on.
The digital connecting cable connected to the
DIGITAL OPTICAL IN jack is pulled out, or the
connected digital component is turned off during
digital recording.
t Connect the cable, or turn on the digital
component.
E0001/MEMORY NG
There is an error in the internal data that the system
needs in order to operate.
t Consult your nearest Sony dealer.
E0101/LASER NG
There is a problem with the optical pickup.
t The optical pickup may have failed. Consult your
nearest Sony dealer.
3
HCD-PX333
ITEMS  OF  ERROR  HISTORY  MODE  ITEMS  AND  CONTENTS
Display
Details of History
op rec tm
Displays the recording time.
Displayed as “rssmin”.
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.
op play tm
Displays the playback time.
Displayed as “pssssssh”. The displayed time is the total of the actual play time.
The time is displayed in hexadecimal digits from 0h.
spdl rp tm
Displays the spindle motor running time.
Displayed as “rssssssh”.
The time is displayed in hexadecimal digits from 0h.
retry err
Displays the total number of retries during recording and number of retry errors during play.
Displayed as “r ss p ss”.
“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 ErrCd @@”.
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
“R”
or
“R”
button.
retry adrs
Display the 5 latest retry address.
Display as “ss ADRS@@@@”.
ss indicates the history number. The smaller the number, the more recent is the error. (00  is the latest)
@@@@ indicates the cluster of retry address.
The number of retry address can be switched by pressing the
.
“R”
or
“R”
button.
er refresh
Mode to clear the error history and retry address history.
Procedure:
1) Press the 
[REC MODE]
 button.
2) The display will change to “er refresh?”, and then press the
ENTER/YES “R”
button.
The operation is over if “Complete!” is displayed.
After this mode was executed, check the following:
• The data have been cleared.
• Perform the recording and playing to check that the mechanism operates normally.
tm refresh
Mode to clear cumulative time of “op rec tm” and “op play tm”.
Procedure:
1) Press the 
[REC MODE]
 button.
2) The display will change to “tm refresh?”, and then press the
ENTER/YES “R”
button.
The operation is over if “Complete!” is displayed.
op change
Mode to clear cumulative time of “op rec tm” and “op play tm”.
These historical data are used to determine the timing when the optical pick-up is to be replaced. When the optical
pick-up was replaced, perform this operation to clear historical data.
Procedure:
1) Press the 
[REC MODE]
 button.
2) The display will change to “op change?”, and then press the
ENTER/YES “R”
button.
The operation is over if “Complete!” is displayed.
spdl change
Mode to clear cumulative time of “spdl rp tm”.
This historical data is used to determine the timing when the spindle motor is to be replaced. When the spindle
motor was replaced,
perform this operation to clear historical data.
Procedure:
1) Press the 
[REC MODE]
 button.
2) The display will change to “spdl change?”, and then press the
ENTER/YES “R”
button.
The operation is over if “Complete!” is displayed.
4
HCD-PX333
Error Code
Details of Error
10
Loading failed
12
Loading switch combination is illegal
20
Head of PTOC could not be read within the
specified time
21
Head of PTOC could be read but its content is
erroneous
22
Access to UTOC could not be made within the
specified time
23
UTOC could be not read within the specified
time
24
Content of UTOC is erroneous
30
Playing could not start
31
Content of sector is erroneous
40
Cause of retry occurred during normal
recording
41
D-RAM overflowed and retry was executed
42
Retry was executed during the writing to TOC
43
S.F editing was interrupted by retry
50
Address could not be read except in access
processing
51
Focusing failed and it is out of control
60
Unlock retry
Table of Error Codes
5
HCD-PX333
CD SECTION
PROCEDURE FOR USING THE SELF-DIAGNOSIS FUNC-
TION (ERROR HISTORY DISPLAY MODE)
1. To Enter The CD Test Mode
Procedure:
1. Press the
?
/1
button to turn the power on.
2. Press the [FUNCTION] button to set the CD function.
3. Press three buttons of
 (CD), 
[             TUNING-]
 and
[TUNER/BAND]
 simultaneously.
4. The set enter the CD test mode (menu) and displays “dvt ERR
CODE”.
Note:
If the consequence was displayed except “dvt ERR CODE”, press the
[               TUNING-]
,  
[                TUNING+]
button to display “dvt
ERR CODE”.
2. Display of Error Number
Procedure:
1. Press the
Z
(CD) button to display as bellow.
(a) Number of mechanical error.
(b) Number of no disc error that occurred after chucking.
2. Press the
x
(CD) button and return to CD test mode menu
(“dvt ERR CODE” is displayed).
3. Display of Mechanical Error History
Procedure:
1. In the CD test mode menu, press the 
[            TUNING-]
,
[            TUNING+]
button to display “dvt ECODE MEC”.
2. Press the
Z
(CD) button to display as bellow.
(a) The number of mechanical error.
Latest one “00” to last ten “09”
(Press the 
[             TUNING-]
,
[            TUNING+]
 button to
change the error number)
(b) FF: Mechanical error, when normal operation.
Other display: Mechanical error, between mechanical initialize.
(c), (d), (e): Not used in servicing.
3. Press the
x
(CD) button and return to CD test mode menu
(“dvt ECODE MEC” is displayed).
Display
Emc=**Edc=**
(a)
(b)
.m
Display
E**M********00
(c)
(a)
(b)
(d) (e)
4. Display of No Disc Error History
Procedure:
1. In the CD test mode menu, press the 
[           TUNING-]
,
[            TUNING+]
 button to display “dvt ECODE BU”.
2. Press the
Z
(CD) button to display as bellow.
(a) The number of no disc error.
Latest one “00” to last ten “09”
(Press the 
[            TUNING-]
 or  
[            TUNING+]
 button to
change the error number)
(b) 01: Focus error
02: GFS error
03: Set up error
04: Focus error (not used in servicing)
(c) 00:No disc error (Did not chucking retry)
02: No disc error (Chucking retry to completion)
(d) The status, when determined no disc error.
2x: During setting up
3x: During reading TOC
4x: During accessing
5x: During playback
6x: During pause
7x: During manual search (during playback)
8x: During manual search (during pause)
3. Press the
x
(CD) button and return to CD test mode menu
(“dvt ECODE BU” is displayed).
4. To Erase The Error History
When returning the unit to the customer after completing repairs,
perform this to erase the past error history.
Procedure:
1. In the CD test mode menu, press the 
[            TUNING-]
,
[             TUNING+]
 button to display “dvt ECNT0 MEC”. (When
erase the mechanical error)
Or one more press the 
[          TUNING+]
 button to display
“dvt ECNT0 BU”. (When erase the no disc error)
2. Press the
Z
(CD) button to erase the error history (mechanical
error or no disc error) and display as bellow.
5. To Release The CD Test Mode
Press the
?
/1
button to turn the power off.
Display
E**D********
(c)
(a)
(b)
(d) (e)
Display
Emc=00Edc=00
.m
M>
.m
M>
.m
M>
.m
M>
.m
M>
.m
M>
M>
6
HCD-PX333
TABLE  OF  CONTENTS
SELF-DIAGNOSIS FUNCTION
.....................................
2
1.
SERVICING  NOTES
...............................................
7
2.
GENERAL
................................................................... 17
3.
DISASSEMBLY
......................................................... 19
4.
TEST MODE
............................................................... 31
5.
ELECTRICAL  ADJUSTMENTS
MD Section ..................................................................... 37
CD Section ...................................................................... 48
6.
DIAGRAMS
6-1. Block Diagram – MD Servo Section – ........................... 51
– D/A, A/D Converter Section – ..................................... 52
– Main Section ................................................................ 53
– Display, Power Supply Section – ................................ 54
6-2. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 55
6-3. Printed Wiring Board – BD (CD) Board – ..................... 56
6-4. Schematic Diagram – BD (CD) Board – ........................ 57
6-5. Printed Wiring Board – BD (MD) Board – .................... 58
6-6. Schematic Diagram – BD (MD) Board (1/2) – .............. 59
6-7. Schematic Diagram – BD (MD) Board (2/2) – .............. 60
6-8. Printed Wiring Board – MD DIGITAL Section – .......... 61
6-9. Schematic Diagram – MD Digital Section (1/3) – ......... 62
6-10. Schematic Diagram – MD Digital Section (2/3) – ......... 63
6-11. Schematic Diagram – MD Digital Section (3/3) – ......... 64
6-12. Printed Wiring Boards  – Main Board – ......................... 65
6-13. Schematic Diagram – Main Board (1/2) – ..................... 66
6-14. Schematic Diagram – Main Board (1/2) – ..................... 67
6-15. Printed Wiring Board  – AMP Board – .......................... 68
6-16. Printed Wiring Board  – SP Board – .............................. 68
6-17. Schematic Diagram  – AMP Board – ............................. 69
6-18. Schematic Diagram – SP Board – .................................. 70
6-19. Printed Wiring Boards  – Panel Section1 – .................... 71
6-20. Schematic Diagram  – Panel Section1 – ........................ 72
6-21. Printed Wiring Boards  – Panel Section2 – .................... 73
6-22. Schematic Diagram  – Panel Section2 – ........................ 73
6-23. Printed Wiring Boards  – Power Board – ....................... 74
6-24. Schematic Diagram  – Power Board – ........................... 75
6-25. IC Block Diagrams .......................................................... 77
6-26. IC Pin Function Description ........................................... 81
7.
EXPLODED  VIEWS
................................................ 93
8.
ELECTRICAL  PARTS  LIST
.............................. 100
MODEL IDENTIFICATION
— Back panel —
Model
Part No.
AEP,UK models
4-231-958-1[]
Homg Kong,Malaysia,
Singapore models
4-231-958-2[]
Australian model
4-231-958-3[]
PART No.
7
HCD-PX333
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.
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.
For CD
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.
For MD
NOTES  ON  LASER  DIODE  EMISSION  CHECK
Never look into the laser diode emission from right above when
checking it for adjustment. It is feared that you will lose your sight.
NOTES  ON  HANDLING  THE  OPTICAL  PICK-UP
BLOCK  OR  BASE  UNIT
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.
The following caution label is located inside the unit.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
SECTION  1
SERVICING  NOTES
(Figure A)
ADVARSEL
Eksplosjonsfare ved feilaktig skifte av batteri.
Benytt samme batteritype eller en tilsvarende type
anbefalt av apparatfabrikanten.
Brukte batterier kasseres i henhold til fabrikantens
instruksjoner.
VARNING
Explosionsfara vid felaktigt batteribyte.
Använd samma batterityp eller en likvärdig typ som
 rekommenderas av apparattillverkaren.
Kassera använt batteri enligt gällande föreskrifter.
VAROITUS
Paristo voi räjähtää, jos se on virheellisesti asennettu.
Vaihda paristo ainoastaan laitevalmistajan suosittelemaan tyyppiin.
Hävitä käytetty paristo valmistajan ohjeiden mukaisesti.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by
the manufacturer.
Discard used batteries according to the manufacturer’s instructions.
CLEANING  OBJECTIVE  LENS  OF  OPTICAL  PICK-UP
• In cleaning the objective lens of optical pick-up, be sure the
following below.
1. In cleaning the lens, do not apply an excessive force.
As the optical pick-up is vulnerable, application of excessive
force could damage the lens holder.
2. In cleaning, do not use a cleaner other than exclusive cleaning
liquid (KK-91 or isopropyl alcohol).
3. Wipe the objective lens spirally from center toward outside. (See
Figure A)
4. Eject the disk, if loaded.
5. Disconnect the power cord from the socket to shut off the power
supply.
6. When cleaning the objective lens of optical pick-up in CD, refer
to  “HOLDER (BU) ASS’Y” on page XX for removing
HOLDER (BU) ASS’Y.
8
HCD-PX333
SERVICE  POSITION
• In checking the MD mechanism deck section (MDM-7X2A), prepare two extension jigs (Part No. J-2501-100-A: 1.00 mm 27 core and
Part No. J-2501-198-A: 1.00 mm 17 core).
• In checking the CD mechanism deck section (CDM55A-21BD53), prepare extension jig (Part No. J-2501-075-A: 1.00 mm 21 core.)
MD mechanism deck section
(MDM-7X2A)
CN103
BD (MD) board
CD mechanism deck section
(CDM55A-21BD53)
Connect extension jig (J-2501-198-A) to the
BD (MD) board (CN103) and MD DIGITAL board (CN1004).
Connect extension jig (J-2501-100-A) to the
BD (MD) board (CN102) and MD DIGITAL board (CN1003).
CN1004
CN1003
CN101
BD (CD) board
CN1005
CN1002
MD DIGITAL board
Connect extension jig (J-2501-075-A) 
to the BD (CD) board (CN101) and 
MD DIGITAL board (CN1002).
CN1005
Pin 
2
 (GND)
Pin 
3
 (OUTSW)
CN102
harness
Note on Checking CD Mechanism Deck Section
In performing the operation check with the CD mechanism deck section removed from the main unit, the CD disc loading will be disabled if
the connector cable between MD DIGITAL board (CN1005) and LOADING board (CN151) is disconnected. Accordingly, make preparation
through the following steps.
1. Insert the CD disc for test with the set assembled.
2. Unplug the AC power cord to turn the power off, and remove the CD mechanism deck section. (Disconnect the connector cable between
MD DIGITAL board (CN1005) and LOADING board (CN151), and also the connector cable between MD DIGITAL board (CN1002)
and BD (CD) board (CN101))
3. Connect the CN1005 pin 3 (OUTSW) and pin 2 (GND) on the MD DIGITAL board with a lead wire.
4. Connect the connectors between MD DIGITAL board (CN1002) and BD (CD) board (CN101) with the extension tool (part No.: J-2501-
075-A).
Note 1:
Under this condition, the CD can be played but the disc loading operation is disabled.
Note 2:
After checking, disconnect the lead wire connected in step 3.
9
HCD-PX333
JIG FOR CHECKING BD (MD) BOARD WAVEFORM
The special jig (J-2501-196-A) is useful for checking the waveform of the BD (MD) board. The names of terminals and the checking items
to be performed are shown as follows.
I+3V : For measuring IOP (Check the deterioration of the optical pick-up laser)
IOP : For measuring IOP (Check the deterioration of the optical pick-up laser)
GND : Ground
TE
: Tracking error signal (Traverse adjustment)
FE
: Focus error signal
VC
: Reference level for checking the signal
RF
: RF signal (Check jitter)
I+3V
CN105
IOP
TE
VC
GND
FE
RF
I+3V
IOP
GND
TE
FE
VC
RF
I+3V
IOP
GND
TE
FE
VC
RF
1
7
for
MDM-7X2A
10
HCD-PX333
Note 1:
About “R”
As this unit has only a few buttons, some operations require the use of remote commander (RM-S55EN/provided with unit: 1-476-664-21)
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
?/1
button to turn the power off, and retry to enter the MD test mode.
IOP  DATA  RECORDING  AND  DISPLAY  WHEN  OPTICAL  PICK-UP  AND  NON-VOLATILE  MEMORY  (IC195 OF  BD
(MD) BOARD) ARE  REPLACED
The IOP value labeled on the optical pick-up can be recorded in the non-volatile memory. By recording the value, it will eliminate the need
to look at the value on the label of the optical pick-up. When replacing the optical pick-up or non-volatile memory (IC195 of BD (MD)
board), record the IOP value on the optical pick-up according to the following procedure.
Record Procedure:
1. Press the
?
/
1
button to turn the power on.
2. Press the 
[FUNCTION]
 button to set the MD function.
3. Press three buttons of 
[             TUNING+]
[REC MODE]
, and  
.m
 (MD) simultaneously to enter the MD test mode and display
“[Check]”.
4. Press the
“R”
or
“R”
button to display “[Service]”.
5. Press the
ENTER/YES “R”
button to display “AUTO CHECK”, and press the
“R”
button to display “Iop Write”.
6. Press the
ENTER/YES “R”
button.
7. The display becomes “Ref= @@@.@” (@ is an arbitrary number) and the numbers which can be changed will blink.
8. Input the IOP value written on the optical pick-up.
To select the number : Press the
“R”
or
“R”
button.
To select the digit
: Press the 
[REC MODE]
 button after press the 
[CD SYNC NORMAL]
 button to display “IT”.
9. When the
ENTER/YES “R”
button is pressed, the display becomes “Measu=@@@.@” (@ is an arbitrary number).
10. As the adjustment results are recorded for the step 9 value. Leave it as it is and press the
ENTER/YES “R”
button.
11. “Complete!” will be displayed momentarily. The value will be recorded in the non-volatile memory and the display will become “Iop
Write”.
12. Press the 
[REPEAT STEREO/MONO]
 button to complete. “Initialize” will be displayed and release the MD test mode.
Display Precedure:
1. Press the
?
/1
button to turn the power on.
2. Press the 
[FUNCTION]
 button to set the MD function.
3. Press three buttons of 
[            TUNING+]
[REC MODE]
, and  
.m
 (MD) simultaneously to enter the MD test mode and display
“[Check]”.
4. Press the
“R”
or
“R”
button to display “[Service]”.
5. Press the
ENTER/YES “R”
button to display “AUTO CHECK”, and press the
“R”
button to display “Iop Read”.
6. Press the
ENTER/YES “R”
button.
7. “@@.@/##.#” is displayed and the recorded contents are displayed.
@@.@ : Indicates the Iop value labeled on the pick-up.
##.#
: Indicates the Iop value after adjustment.
8. Press the 
[REPEAT STEREO/MONO]
 button to complete. “Initialize” will be displayed and release the MD test mode.
WHEN MEMORY NG IS DISPLAYED
If the nonvolatile memory data is abnormal, “E001 MEMORY NG” will be displayed so that the MD deck does not continue operations. In
this case, set the test mode promptly and perform the following procedure.
Procedure:
1. Enter the MD test mode.
2. Normally a message for selecting the test mode will be displayed. However if the nonvolatile memory is abnormal, the following will be
displayed “INIT EEP?”.
3. Press the
x
(MD) and Z (MD) buttons simultaneously.
4. Press the
“R”
or
 >
 “R”
button to display “MDM-7X2A”.
5. Press the
ENTER/YES “R”
button. If the nonvolatile memory is successfully overwritten, the normal MD test mode will be set and a
message to select the MD test mode will be displayed.
M>
M>

Download Sony CMT-PX333 / HCD-PX333 Service Manual (Repair Manual)

Here you can view online and download Sony CMT-PX333 / HCD-PX333 Service Manual in PDF. CMT-PX333 / HCD-PX333 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony CMT-PX333 / HCD-PX333 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.