AIVA XR-FA500 User manual

XR-FA500
AEP Model
UK Model
E Model
Australian Model
SERVICE MANUAL
MICRO HI-FI COMPONENT SYSTEM
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-877-149-03
2003G16-1
© 2003.07
•XR-FA500 is composed of following models.
As for the service manual, it is issued for each component
model, then, please refer to them.
Ver 1.2 2003. 07
COMPONENT MODEL NAME
COMPACT DISC DECK
RECEIVER SYSTEM
SPEAKER SYSTEM
PARTS LIST
Part No. Descriptio Remark
ACCESSORIES
************
1-477-914-11 COMMANDER, STANDARD (RM-Z20020)
1-501-374-92 ANTENNA, LOOP (AM)
01-569-008-12 ADAPTOR, CONVERSION 2P (E51)
1-754-255-11 ANTENNA (FM) (E51)
1-793-184-21 CONNECTOR (F TYPE ADAPTOR)(FM ANTENNA)
4-247-459-11 MANUAL, INSTRUCTION
(ENGLISH, SPANISH, GERMAN, FRENCH, ITALIAN,
RUSSIAN, POLISH, HUNGARIAN, CZECH)(AEP)
4-247-459-21 MANUAL, INSTRUCTION (ENGLISH)(UK)
4-249-131-01 COVER BATTERY (FOR RM-Z20020)
4-247-459-41 MANUAL, INSTRUCTION
(ENGLISH, SPANISH, FRENCH, TRADITIONAL CHINESE) (SP)
4-247-459-51 MANUAL, INSTRUCTION (ENGLISH) (AUS)
4-247-459-61 MANUAL, INSTRUCTION (ENGLISH, SPANISH) (E51)
4-247-792-01 CORD, SPEAKER
4-249-043-01 FOOT (FOR SPEAKERS)
4-249-457-11 MANUAL, INSTRUCTION
(ENGLISH, TRADITIONAL CHINESE) (TW)
4-249-457-21 MANUAL, INSTRUCTION (KOREAN) (KR)
XR-FA500
CX-LFA500
SX-LFA500
•Abbreviation
AUS:Australian model.
E51 : Chilean and Peruvian models.
KR : Korean model.
SP : Singapore model.
TW : Taiwan model.
The components identified by mark 0or
dotted line with mark 0are critical for safety.
Replace only with part number specified.
http://getMANUAL.com

CX-LFAV500
E Model SERVICE MANUAL
MICRO HI-FI COMPONENT SYSTEM
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
9-961-145-01
2003H1678-1
© 2003.08
CX-LFAV500 is the Amplifier, Video CD/CD player,
Tape Deck andTuner section in XR-FAV500.
SPECIFICATIONS
Ver 1.0 2003. 08
Model Name Using Similar Mechanism NEW
CD CD Mechanism Type CDM55A-30BD61S
Section Base Unit Name BU-30BD61S
Optical Pick-up Name A-MAX.3
TAPE Model Name Using Similar Mechanism CX-LFA500
Section Tape Transport Mechanism Type CMAL1Z222B
TUNER
FM tuning range 87.5 MHz to 108 MHz
FM usable sensitivity (IHF) 16.8 dBf
FM antenna terminal 75 Ω(unbalanced)
AM tuning range 531 kHz to 1602 kHz (9 kHz step)
530 kHz to 1710 kHz (10 kHz)
AM usable sensitivity 350 µV/m
AM antenna Loop antenna
AMPLIFIER
Power output Rated: 16 W + 16 W(1 kHz, T.H.D.
1 %, 6 Ω)
Reference: 20 W + 20 W(1 kHz,
T.H.D. 10 %, 6 Ω)
Inputs AUX IN: 500 mV
MIC: 1.0 mV (10 kΩ)
Outputs SPEAKERS: 6 Ωor more
PHONES: 32 Ωor more
CASSETTE DECK
Track format 4 tracks, 2 channels stereo
Frequency response 100 Hz – 10000 Hz
Recording system AC bias
Heads Recording/playback ×1, erase ×1
CD PLAYER
Laser Semiconductor laser (λ= 780 nm)
Emission duration: continuous
D/A converter 1 bit dual
Signal-to-noise ratio 80 dB (1 kHz, 0 dB)
Wow and flutter Unmeasurable
Video data MPEG 1
Audio data MPEG 1, Layer 2 (VCD)
MPEG 1, Layer 3 (MP3-CD)
GENERAL
Power requirements 120 V/220 V/230-240 V AC
(Switchable), 50/60 Hz
Power consumption 55 W
Power consumption in standby mode
with ECO mode on: 0.3 W
with ECO mode off: 10 W
Dimensions (w/h/d) Approx. 190 ×250 ×284 mm
Mass Approx. 4.5 kg
Supplied accessories: FM antenna (1)
AM antenna (1)
Speaker cords (2)
Remote commander (1)
Video connecting cord (1)
Batteries (2)
Speaker pads (8)
Specifications and external appearance are subject to change
without notice.

2
CX-LFAV500
1. SERVICING NOTES ······················································· 3
2. GENERAL ·········································································· 5
3. DISASSEMBLY
3-1. TOP CABINET, V-OUT BOARD, DC FAN ·················· 7
3-2. MIC/ECHO BOARD ······················································ 8
3-3. CD MECHANISM SECTION········································ 8
3-4. FRONT PANEL ASSY ··················································· 9
3-5. FRONT BOARD, SINGLE CASSETTE
MECHANISM································································ 9
3-6. MAIN BOARD, PT BOARD ······································· 10
3-7. VCD BOARD,
CD MECHANISM DECK (CDM55A-30BD61S) ······· 11
3-8. LOADING BOARD ····················································· 11
3-9. BD BOARD ·································································· 12
3-10. TRAY (CDM55D) ······················································ 12
3-11. BASE UNIT (BU-30BD61S)······································ 13
4. TEST MODE···································································· 14
5. MECHANICAL ADJUSTMENTS ····························· 15
6. ELECTRICAL ADJUSTMENTS ······························· 16
7. DIAGRAMS······································································ 19
7-1. BLOCK DIAGRAM – BD SECTION – ····················· 20
7-2. BLOCK DIAGRAM – VCD SECTION – ··················· 21
7-3. BLOCK DIAGRAM – MAIN SECTION – ················ 22
7-4. PRINTED WIRING BOARD – BD SECTION – ······· 23
7-5. SCHEMATIC DIAGRAM – BD SECTION – ············ 24
7-6. PRINTED WIRING BOARD – VCD SECTION – ····· 25
7-7. SCHEMATIC DIAGRAM – VCD SECTION (1/2) – ·· 26
7-8. SCHEMATIC DIAGRAM – VCD SECTION (2/2) – ·· 27
7-9. PRINTED WIRING BOARDS – MAIN SECTION –·· 28
7-10. SCHEMATIC DIAGRAM
– MAIN SECTION (1/3) – ··········· 29
7-11. SCHEMATIC DIAGRAM
– MAIN SECTION (2/3) – ··········· 30
7-12. SCHEMATIC DIAGRAM
– MAIN SECTION (3/3) – ··········· 31
7-13. PRINTED WIRING BOARDS
– FRONT SECTION – ·················· 32
7-14. SCHEMATIC DIAGRAM – FRONT SECTION – ··· 33
7-15. PRINTED WIRING BOARDS
– MIC ECHO/JACK SECTION – ···· 34
7-16. SCHEMATIC DIAGRAM
– MIC ECHO/JACK SECTION –· 35
7-17. PRINTED WIRING BOARD
– POWER SECTION – ················· 36
7-18. SCHEMATIC DIAGRAM – POWER SECTION – ·· 37
7-19. IC PIN FUNCTION DESCRIPTION························· 41
8. EXPLODEDVIEWS
8-1. OVERALL SECTION ·················································· 43
8-2. FRONT SECTION························································ 44
8-3. CHASSIS SECTION ···················································· 45
8-4. CD MECHANISM DECK SECTION·························· 46
8-5. BASE UNIT SECTION ················································ 47
9. ELECTRICAL PARTS LIST ······································· 48
TABLE OF CONTENTS

3
CX-LFAV500
SECTION 1
SERVICING NOTES
SAFETY-RELATED COMPONENTWARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINEWITH
MARK 0ON 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.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
This appliance is classified as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT MARKING is located on
the exterior.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
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.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
Carry out the“S curve check” in“CDsection adjustment” and check
that the S curve waveforms is output three times.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
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 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.
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
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 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.
Soldering irons using a temperature regulator should be set to
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 flow) 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.
The following caution label is located inside the apparatus.

4
CX-LFAV500
Service Position of the CD Mechanism Deck andVCD Board
Service Position of theTape Cassette Mechanism Deck
MAIN Board
Tape Cassette Mechanism Deck
(CMAL1Z222B)
CD Mechanism Dec
k
(CDM55A-30BD64S)
VCD Board
CN806
MAIN Board
CN802
Extension cable J-2501-245-A
(1.00mm/23P/L300)
Extension cable J-2501-225-A
(1.00mm/9P/L300)

5
CX-LFAV500
SECTION 2
GENERAL This section is extracted
from instruction manual.
PARTS AND CONTROLS
Main unit: front
Refer to the pages indicated in parentheses for details.
1
5
2
3
4
7
8
9
0
6
1POWER 6STANDBY/ON (8)
Switches the unit on and off (standby).
ECO (8)
Sets the ECO mode on or off.
DISPLAY (10, 14)
Changes the display in CD playback mode.
2MIC jack
Plug in an optional microphone with a stereo mini plug
(ø3.5 mm).
3PHONES jack
Plug in optional headphones set with a stereo mini plug
(ø3.5 mm). Speaker output is cancelled.
4SYNCHRO REC (19)
Starts recording and CD play simultaneously.
wREC START/REC PAUSE (19)
Starts and pauses recording.
5BASS (9)
Adjusts the bass level.
TREBLE (9)
Adjusts the treble level.
6ECD/SELECT (8, 10-14)
Starts and pauses CD play.
TUNER/BAND (8, 16)
Selects tuner function and the tuner band.
dTAPE (REC MUTING) (8, 18, 19)
Starts playback and changes the playback side.
Also used to enter 4-second blank spaces during
recording.
AUX (8)
Selects the function of external equipment connected to
AUX IN jacks.
7zOPEN/CLOSE (10)
Opens or closes the disc compartment.
8s/CLEAR/ ORETURN (10-14, 18, 19)
CD and Tape: stops playback.
f/r-PREVIOUS, NEXT+t/g
(8-10, 12-14, 16, 18, 20-23)
CD: skips to a previous or a succeeding track when
pressed, searches a track in fast forward or reverse
playback when held down.
Tape: rewinds or fast forwards the tape.
Tuner: manually tunes up or down within the band.
9zPUSH EJECT (18, 19)
Opens or closes the cassette holder.
0VOLUME (9, 22)
Adjusts the volume.
En
Main unit: rear
Refer to the pages indicated in parentheses for details.
1
2
3
4
5
7
6
1AM LOOP terminal and FM 75Ωterminal
(4)
Plug in the supplied AM and FM antennas.
2AUX IN jacks
Accept analogue sound signals from external equipment.
Connect external equipment using an optional connecting
cable with RCA phono plugs (red plug to R jack, white
plug to L jack). Refer also to the operating instructions
for your equipment.
To switch function to external input, press AUX.
To change a source name in the display of the
AUX function
Hold down AUX and press POWER while the power is
on.
AUX VIDEO TV
3SUB WOOFER3jack
Connect optional powered sub woofer with a built-in
amplifier to the jack.
4SPEAKERS3terminals (4)
Connect the speaker cords of the supplied speakers.
5AC power cord (4)
6VIDEO OUT jack (4)
Outputs video signals.
Connect to the video input jack of your TV set with the
supplied video connecting cord. Select the appropriate
video input on your TV. Refer to the operating instructions
of your TV.
NTSC/AUTO/PAL switch (4)
Sets the color system of the video signal output via the
VIDEO OUT jack. Turn off the power, and then set the
switch according to your TV set:
- NTSC: When connecting to an NTSC system TV.
- AUTO: When connecting to a multi color system TV.
-PAL: When connecting to a PAL system TV.
•In case of setting the switch to "AUTO", you need to
adjust the color system according to your VCD to play
back. Hold down SHIFT and SLOW for about 6 seconds
in stop mode in CD function, and "PAL" (initial) or
"NTSC" appears on the display (except when the
loaded disc is MP3-CD).
When playing back a PAL VCD, hold down SHIFT and
SLOW and then release them when "PAL" appears.
When playing back an NTSC VCD, do the same
procedure and release it when "NTSC" appears.
When the function is changed or the unit is turned off,
PAL is restored.
•This unit does not support color system other than
PAL and NTSC, such as NTSC 4.43 or SECAM.
•If there is a color or picture trouble in the AUTO mode,
select NTSC or PAL.
7AC VOLTAGE selector (3)
Switches AC voltage between 120V, 220 and 230-240V.
Make sure it matches your local voltage.

6
CX-LFAV500
Remote commander
Refer to the pages indicated in parentheses for details.
1
4
5
6
7
9
8
!
@
#
0
2
3
Buttons with the same or similar names on the main unit
basically have the same function.
1POWER (8)
21–10/0, >10 (10-14,16)
CD: selects a track of the specified number.
Tuner: tunes in the station with the specified preset
number.
The numbered buttons take on these functions when pressed with
SHIFT held down
:
CLOCK (8)
Selects clock mode.
TIMER (22, 23)
Selects timer mode.
SLEEP (22)
Selects sleep-timer mode.
TUNER MODE (17)
Switches between stereo or monaural FM reception.
REV MODE (17, 18, 22)
Selects a reverse mode.
SHUF/PROGRAM (10, 11, 21)
Selects shuffle or programmed CD playback mode.
REPEAT (10)
Selects repeat CD playback mode.
DIMMER (8)
Adjusts the display window brightness.
CHECK (21)
Check the tracks during Karaoke program.
3ZOOM (12)
Enlarge VCD picture during pause.
MIC/ECHO (20, 21)
MIC: adjust the microphone volume.
ECHO: adjust the echo level.
SLOW / KEY CONTROL (12, 21)
SLOW: play back a VCD slowly while held down.
KEY CONTROL: adjust the key level.
4ALBUM/PRESET N,M(14, 16)
MP3-CD:skips to a previous or succeeding album.
Tuner: Tunes in a preset station.
f/r,t/g(8-10, 12-14, 16, 18,
20-23)
ENTER/SELECT (8, 16, 22, 23)
Determines the mode.
Stores the received station to preset.
5ECD (8, 10-14)
dTAPE (8, 18)
TUNER/BAND (8, 16)
ON SCREEN / PBC (12, 13)
ON SCREEN: displays disc information such as elapsed
tiime on TV screen.
PBC: turns the PBC function on and off.
6DISPLAY (10, 14)
Changes the display in CD playback mode.
DIGEST (13)
Activates the Digest playback function.
MARK (13)
Marks a desired point when playing a VCD.
7SHIFT
Hold down when pressing a numbered button to change
its function to that printed above the number.
8MUTING (9)
To turn off the sound temporarily.
9CLEAR (11, 16, 22, 23)
CD: clears a CD program
Tuner: clears a preset station.
0KARAOKE (20)
Activates and selects karaoke mode.
TONE (9)
Selects the bass or treble adjusting mode.
!s/vRETURN (10-14, 18, 19)
@FUNCTION (19)
Switches the active function among TAPE, TUNER, AUX
(VIDEO or TV) and CD.
#VOLUME +,-(9)
En
ADJUSTMENTS BEFORE OPERATION
ECO CLOCK
POWER
SHIFT
ECD,
TUNER/
BAND,
dTAPE
f,g
POWER
6STANDBY/ON ECD,
TUNER/
BAND,
dTAPE,
AUX
ENTER/
SELECT
DIMMER
f,g
ECO mode
Reduces power consumption in standby mode with the following
operations.
Press ECO.
Each press of the button changes the mode as follows;
ECO ON: Power economizing mode is activated.
When the unit turns off, everything in the display disappears
and only the red indicator on POWER lights to show that the
power is being supplied.
ECO OFF: Power economizing mode is cancelled.
When the unit turns off, the clock display appears.
Initial mode is ECO OFF.
Standby power consumption
ECO ON: 0.3 W
ECO OFF: 10 W
Setting the clock
1 In stop mode, hold down SHIFT and press CLOCK
on the remote.
Go to step 3 when the hour of the clock display flashes.
2 Within 6 seconds, press ENTER/SELECT.
The hour flashes in the display.
3 Press for gto set the hour, then press
ENTER/SELECT.
4 Press for gto set the minute.
Each press changes the time in 1-minute steps.
5 Press ENTER/SELECT.
The time display stops flashing and the clock starts from
00 seconds.
To display the time while the power is on
Hold down SHIFT and press CLOCK on the remote.
The time will be displayed for 6 seconds.
Tip:
"AM 12:00" indicates midnight and "PM 12:00" noon.
If "- -:- -" appears when the unit is turned off
There has been a power interruption. Reset the clock.
Power
Turning the unit on
Press POWER 6STANDBY/ON (POWER on the remote ).
Alternatively, press dTAPE, TUNER/BAND, AUX or
ECD. Playback will start automatically if a disc or tape is
loaded.
Turning the unit off
Press POWER 6STANDBY/ON again.
The unit goes into standby.
Dimmer
The display window brightness can be selected.
Hold down SHIFT and press DIMMER on the remote
repeatedly.
Each press of the button changes the following three levels:
"DIMMER 1", "DIMMER 2" and "DIMMER 0".
"DIMMER 0" is brightest.

7
CX-LFAV500
SECTION 3
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
• This set can be disassembled in the order shown below.
3-1. TOP CABINET,V-OUT BOARD, DC FAN
MAIN BOARD,
PT BOARD
LOADING BOARD BD BOARD TRAY (CDM55D)
BASE UNIT
(BU-30BD61S)
VCD BOARD,
CD MECHANISM DECK
(CDM55A-30BD61S)
FRONT BOARD,
SINGLE CASSETTE MECHANISM
FRONT PANEL ASSY
CD MECHANISM SECTION
MIC/ECHO BOARD
SET
TOP CABINET,
V-OUT BOARD, DC FAN
1 three s crews
(+KTP 3
× 12)
2 three s crews
(+KTP 3
× 12)
3 six s crews
(+BVTP 3
× 10)
7 two s crews
(+BVTP 3
× 10)
qh two s crews
(+BVTP 3
× 10
)
qd two s crews
(+BVTP 3
× 10)
qs s crew (+BVTP 3 × 10)
6 three s crews
(+BVTP 3
× 10)
5 top cabinet
4
qk rear panel
qj DC fan
q; tuner (FM/AM)
9 w ire (flat type)
15p
a
a
b
b
8 three s crews
(+BVTP 3
× 10)
qa connector 4p
(CN771)
qf V-OUT board
qg connector 2p
(CN451)

8
CX-LFAV500
3-2. MIC/ECHO BOARD
3-3. CD MECHANISM SECTION
4 two s crews
(+BVTP 3 × 10)
2 connector 3p (CN501)
1 connector 4p
(CN502)
5 MIC/ECHO board
3 w ire (flat type) 5p (CN504
)
2 four s crews
(+BVTP 3 × 10)
6 s crew (+BVTP 3 × 10)
1 s crew (+BVTP 3 × 10)
7 w ire (flat type) 5p (CN801)
4 w ire (flat type) 11p (CN303)
8 CD mechanism section
3
5 connector 5p (CN1)

9
CX-LFAV500
3-4. FRONT PANEL ASSY
3-5. FRONT BOARD, SINGLE CASSETTE MECHANISM
1 two s crews
(+KTP 3 × 12)
2 w ire (flat type) 23p (CN302)
4
6
front panel assy
5 connector 6p
3 connector 5p (CN201)
q; single cassette mechanism
(CMAL1Z222B)
8 FRONT board
3 twelve s crews (+BVTP 3 × 10)
9 four s crews (+BVTP 3 × 10)
4 w ire (flat type) 23p (CN601)
5 w ire (flat type) 5p (CN605)
6 w ire (flat type) 5p (CN602)
7 w ire (flat type) 8p (CN603)
1 two B/T knob
2 vol knob

10
CX-LFAV500
3-6. MAIN BOARD, PT BOARD
2 two s crews (+BVTP 3 × 10
)
3 two s crews
(+BVTP 3
× 10)
8 s crew (+BVTP 3 × 10)
9 holder (PWB PT)
7 four s crews
(+B 4
× 8)
4 five s crews
(+BVTP 3
× 10)
5 heat sink assy
6 MAIN board
qs PT board
1 connector 7p (CN801)
q; connector 2p (CN202)
qa power transformer

11
CX-LFAV500
3-7. VCD BOARD, CD MECHANISM DECK (CDM55A-30BD61S)
3-8. LOADING BOARD
qs s crew (+BVTP 3 × 10)
9 s crew (+BVTP 3 × 10)
qa holder, shield case
7 two s crews (+BVTP 3 × 10)
q; two s crews (+BVTP 3 × 10)
8 VCD board
qf CD door assy
qd CD holder
2 two s crews (+BVTP 3 × 10)
qg CD mechanism
deck
3 lid (VCD), shield case
6 w ire (flat type) 23p (CN802
)
1 w ire (flat type) 10p (CN806)
4 w ire (flat type) 9p (CN803)
5 connector
4p (CN804)
5 LOADING board
2 two screws (+BTP 2.6 × 6)
4 motor (LD) assy
(M901)
1 Remove the belt.
3 Remove soldering from the two points.

12
CX-LFAV500
3-10.TRAY (CDM55D)
2 tray
1 While pressing the two protrusions A and B to unlock the two claws as shown,
pull the tray in the direction of the arrow C . (Be careful of the claws.)
claw
claw
C
A
B
3-9. BD BOARD
2 Remove soldering
from the four points.
5 BD board
1 wire (flat type) 25p (CN103)
4 wire (flat type) 16
p
3 claw

13
CX-LFAV500
3-11. BASE UNIT (BU-30BD61S)
4 two floating screws
(+PTPWH M2.6)
3 two floating screws
(+PTPWH M2.6)
1 floating screws
(+PTPWH M2.6)
2
5
BU holder (BU-30)
7 two insulators
6 two insulators
base unit
(BU-30BD61S)
8 w ire (flat type) 9p (CN105)

14
CX-LFAV500
[Cold Reset]
*The cold reset clears all data including preset data stored in
the RAM to initial conditions. Execute this mode when re-
turning the set to the customer.
Procedure:
1. Press the [POWER] button to turn off the main power.
2. While depressing the x button, press the [POWER] button.
3. The fluorescent indicator tube does not display any message
and the set is reset.
[Fluorescent IndicatorTube Test Mode]
*Fluorescent segments are tested when this test is activated.
Procedure:
1. Extract an AC plug.
2. While depressing the CD ubutton, insert an AC plug.
3. All segments of the fluorescent indicator tube turn on.
4. CD test mode is activated.
5. To exit from this mode, press the [POWER] button or discon-
nect the power cord.
[Version Display Mode]
*The model and the version are displayed.
Procedure:
1. Press the [POWER] button to turn the set on.
2. To enter the test mode, press two buttons x and [POWER]
simultaneously for more than five seconds.The model and the
version are displayed.
[AMPTest]
*This mode is used to check the function of the amplifier.
Procedure:
1. Extract an AC plug.
2. While depressing the [AUX] button, insert anAC plug to enter
the AMP test mode. The message “AMP TEST” is displayed.
3. The message “Volume MAX” is displayed, when the [VOL-
UME] knob is rotated clockwise. The message “Volume 0” is
displayed, when the [VOLUME] knob is rotated counterclock-
wise.
4. Each time the [BASS] or [TREBLE] knob is turned, the mes-
sage “EQ MAX”, “EQ MIN” or “EQ FLAT” is displayed in
this order.
5. To release from this mode, disconnect the AC plug and turn
the power off.
[AM Channel Step 9 kHz/10kHz Selection Mode]
*Either the 9 kHz step or 10 kHz step can be selected for the
AM channel step.
Procedure:
1. Set the function to AM.
2. While depressing the [TUNER/BAND] button, press the
[POWER] button.
3. The channel step is changed over.
[TCTest Mode]
Procedure:
1. Extract an AC plug.
2. While depressing the TAPE Ybutton, insert an AC plug.
3. The message “TC TEST” is displayed and TC test mode is
activated.
*Zero Return
1. Press the + > M or – .m button.
2. The tape is rewound to the counter zero position.
*Automatic record/playback test
1. Press the REC START/REC PAUSE button.
2. The message “AUX” is displayed and AUX input is selected.
3. The tape is rewound to the counter zero position and record-
ing is started automatically.
4. When the x button is pressed, the tape is rewound to the
recording stated point and the set starts playback.
5. To exit from this mode, press the [POWER] button or discon-
nect the power cord.
SECTION 4
TEST MODE

15
CX-LFAV500
2.94 – 7.84 mN • m
(30 to 79 g • cm)
(0.42 – 1.11 oz • inch)
0.15 – 0.59 mN • m
(2 to 6 g • cm)
(0.03 – 0.08 oz • inch)
2.94 – 7.84 mN • m
(30 to 79 g • cm)
(0.42 – 1.11 oz • inch)
0.15 – 0.59 mN • m
(2 to 6 g • cm)
(0.03 – 0.08 oz • inch)
6.86 – 17.64 mN • m
(70 to 179 g • cm)
(0.98 – 2.49 oz • inch)
9.8 mN • m or more
(100 g • cm or more)
(1.4 oz • inch or more)
9.8 mN • m or more
(100 g • cm or more)
(1.4 oz • inch or more)
CQ-102C
CQ-102C
CQ-102RC
CQ-102RC
CQ-201B
CQ-403A
CQ-403R
Precaution
1. Clean the following parts with a denatured alcohol-moistened
swab:
record/playback heads pinch rollers
erase head rubber belts
capstan idlers
2. Demagnetize the record/playback head with a head demag-
netizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
Torque Measurement
SECTION 5
MECHANICAL ADJUSTMENTS
Mode
FWD
FWD
back tension
REV
REV
back tension
FF/REW
FWD tension
REV tension
Torque meter Meter reading

16
CX-LFAV500 SECTION 6
ELECTRICAL ADJUSTMENTS
[Record/Playback Head Azimuth Adjustment]
Procedure:
1. Mode : Playback
2. Turn the adjustment screw and check output peaks. If the peaks
do not match for L-CH and R-CH, turn the adjustment screw
so that outputs match within 1 dB of peak.
test tape
P-4-A100
(10kHz, –10dB) MAIN board
J605
speaker terminal
level meter
set +
–
L-CH
peak
R-CH
peak
screw
position
output
level within
1 dB
L-CH
peak R-CH peak
screw
position
within 1dB
Signal Used forTape
P-4-A100
WS-48B
10 kHz, –10 dB
3 kHz, 0 dB
Azimuth Adjustment
Tape Speed Adjustment
DECK SECTION 0 dB=0.775V
1. Demagnetizethe record/playbackhead witha headdemagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to the
parts adjusted.
4. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
5. The adjustments should be performed in the order given in this
service manual. (As a general rule, playback circuit adjustment
should be completed before performing recording circuit
adjustment.)
6. The adjustments should be performed for both L-CH and R-
CH.
7. Switches and controls should be set as follows unless otherwise
specified.
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
Adjustment Location:Record/Playback/Erase Head
[Tape Speed Check]
Procedure:
1. Turn the power on.
2. Insert the WS-48B into deck.
3. Press the Ybutton of deck.
4. Check the reading of frequency counter becomes 3000 ± 90 Hz.
Sample Value ofWow and flutter
W.RMS (JIS) less than 0.3%
(test tape: WS-48B)
3. Mode: Playback
test tape
P-4-A100
(10kHz, –10dB) oscilloscope
set
Waveform of oscilloscope
in phase 45
°
90 °
135 °
180 °
good wrong
MAIN board
J605
speaker terminal
L
R

17
CX-LFAV500
RFDC signal waveform
Checking Location: BD board (Conductor side)
RFAC Level Check
Connection:
Procedure:
1. Connect an oscilloscope to test point TP6 (RFAC) and TP7
(VC) on the BD board.
2. Turn the power on.
3. Put the disc (YEDS-18) in to playback the number five track.
4. Confirm that oscilloscope waveform is clear and check RFAC
signal level is correct or not.
Note: A clear RFAC signal waveform means that the shape “◊” can be
clearly distinguished at the center of the waveform.
RFAC signal waveform
Checking Location: BD board (Conductor side)
CD SECTION
Note:
1. CD Block is basically designed to operate without adjustment. There-
fore, check each item in order given.
2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10MΩimpedance.
4. Clean the object lens by an applicator with neutral detergent when the
signal level is low than specified value with the following checks.
S-curve Check
Connection:
Procedure:
1. Connect an oscilloscope to test point TP4 (FE) and TP7 (VC)
on the BD board.
2. Turn the power on.
3. Put the disc (YEDS-18) in and turned power switch on again
and actuate the focus search. (actuate the focus search when
disc table is moving in and out)
4. Check the oscilloscope waveform (S-curve) is symmetrical
betweenA and B.And confirm peak to peak level within 2 ± 1
Vp-p.
S-curve waveform
Note: •Try to measure several times to make sure than the ratio ofA : B
or B : A is more than 10 : 7.
•Take sweep time as long as possible and light up the
brightness to obtain best waveform.
Checking Location: BD board (Conductor side)
RFDC Level Check
Connection:
Procedure:
1. Connect an oscilloscope to test point TP6 (RFDC) and TP7
(VC) on the BD board.
2. Turn the power on.
3. Put the disc (YEDS-18) in to playback the number five track.
4. Confirm that oscilloscope waveform is clear and check RFDC
signal level is correct or not.
Note: A clear RFDC signal waveform means that the shape “◊” can be
clearly distinguished at the center of the waveform.
+
–
BD board
TP4 (FE)
TP7 (VC)
oscilloscope
A
B
symmetry
within 2
± 1 Vp-p
+
–
BD board
TP6 (RFDC)
TP7 (VC)
oscilloscope
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
level: 0.7
± 0.2 Vp-p
+
–
BD board
TP6 (RFAC)
TP7 (VC)
oscilloscope
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
level: 1.0
± 0.4 Vp-p

18
CX-LFAV500
Connecting Location:
– BD BOARD (Conductor Side) –
IC101
TP7
(VC)
IC103
RV101
E-F Balance
(1 Track Jump)
Adjustment TP8
(RFAC)
TP6
(RFDC)
TP4
(FE)
TP2
(TE)
+
–
BD board
TP2 (TE)
TP7 (VC)
oscilloscope
Traverse Waveform
0V
B
level: 1.0 ± 0.5 Vp-p
Center of
the waveform
A (DC
voltage)
Traverse Waveform
0V
Tracking servo
Sled servo
ON
C (DC
voltage)
Tracking servo
Sled servo
OFF
6. Press the CD u button. (The tracking servo and sledding
servo are turned ON)
Rotate RV101 on BD board and adjust the C (DC voltage)
is almost equal to the A (DC voltage) in step 4.
7. To exit from this mode, turn the power off.
Notes: •Always move the optical pick-up to most inside track when
exiting from this mode. Otherwise, a disc will not be unloaded.
•Do not run the sled motor excessively, otherwise the gear can
be chipped.
E-F Balance Adjustment
Connection:
Procedure:
1. Connect an oscilloscpe to test point TP2 (TE) and TP7 (VC)
on the BD board.
2. AC is put in pushing CD
u button to enter the CD test
mode.
3. Put the disc (YEDS-18) in to playback the number five track.
4. Press the button. If it plays, press theCD
u
button again. (The tracking servo and the sledding servo are
turned OFF)
5. Check the level B of the oscilliscope's waveform and the A
(DC voltage) of the center of the Traverse waveform.
Confirm the following :
A/B x 100 = less than ±10%
CD u

1919
CX-LFAV500
•Waveforms
– BD Board –
7Q301 collector (Rec mode)
5V/DIV, 5 µ s /DIV
11.8Vp-p
11.2
µ s
– MAIN Board –
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this,the necessary note is printed
in each block.)
For schematic diagrams.
Note:
•All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
•All resistors are in Ωand 1/4W or less unless otherwise
specified.
∗: Impossible to measure
•f: internal component.
•2: nonflammable resistor.
•C: panel designation.
•H: adjustment for repair.
For printed wiring boards.
Note:
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
•f: internal component.
•: Pattern from the side which enables seeing.
•A: B+ Line.
•B: B– Line.
•Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
•VoltagesaretakenwithaVOM(Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
•Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
•Circled numbers refer to waveforms.
•Signal path.
F: TUNER
J: CD
d: AUX
E: PB (TAPE)
a: REC (TAPE)
L: VIDEO
: MIC
•Abbreviation
MY : Malaysia model.
SP : Singapore model.
TH :Thai model.
•Indication of transistor
Caution:
Pattern face side: Partsonthe patternfaceside seen from
(Side B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Side A) the parts face are indicated.
Note: The components identified by mark 0or dotted line
with mark 0are critical for safety.
Replace only with part number specified.
C
BThese are omitted. E
Q
B
These are omitted.
CE
Q
B
These are omitted.
CE
Q
1.0 ± 0.4Vp-p
1IC103 qg (RFAC)
(CD Play Mode)
2IC101 qh (FE)
(CD Play Mode)
200mV/DIV, 1 µ s /DIV
100mV/DIV,
200 µ s /DIV
500mV/DIV, 200 µ s /DIV
Approx.
360mVp-p
Approx.
1.2Vp-p
0.6 ± 0.15Vp-p
4IC103 wk (RFDC)
(CD Play Mode)
100mV/DIV, 1 µ s /DIV
3IC101 qk (TE)
(CD Play Mode)
5IC101 us (XTAO)
1V/DIV, 20 ns /DIV
3.7Vp-p
59.1ns
• Circuit Boards Location
MAIN BOARD
BD BOARD
LOADING BOARD
HP/MIC JACK BOARD
FRONT BOARD
SECTION 7
DIAGRAMS
V-OUT BOARD
MIC/ECHO BOARD
PT BOARD
VCD BOARD
6 IC802 ua (XOUT)
1V/DIV, 10ns /DIV
4.6Vp-p
37 ns
9IC601 qh (X OUT)
1V/DIV, 10 µ s /DIV
8IC601 qd (XT2)
5.2Vp-p
30.6
µ s
1V/DIV, 50ns /DIV
2.4Vp-p
115ns
– FRONT Board ––VCD Board –