DOWNLOAD Sony CX-LMN5 / XR-MN5 Service Manual ↓ Size: 7.7 MB | Pages: 72 in PDF or view online for FREE

Model
CX-LMN5 XR-MN5
Pages
72
Size
7.7 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cx-lmn5-xr-mn5.pdf
Date

Sony CX-LMN5 / XR-MN5 Service Manual ▷ View online

CX-LMN5
US Model
Canadian Model
AEP Model
 UK Model
E Model
Australian Model
SERVICE MANUAL
MICRO HI-FI COMPONENT SYSTEM
Sony Corporation
Personal Audio Company
Published by Sony Engineering Corporation
9-877-183-04
2004H16-1
© 2004.08
CX-LMN5 is the Amplifier, CD player, Tape
Deck and Tuner section in XR-MN5.
SPECIFICATIONS
Ver 1.3  2004.08
Power requirements
230 V AC, 50/60 Hz (AEP, UK)
120 V AC, 60 Hz (US, CND, TW)
120 V/220 V/230-240 V AC, 
50/60 Hz (E)
220 V AC, 50/60 Hz (KR)
110-240 V AC, 50/60 Hz (TH)
220-240 V AC, 50/60 Hz (SP)
240 V AC, 50/60 Hz (AUS, TW)
MAIN UNIT CX-LMN5
TUNER
AMPLIFIER
CASSETTE DECK
CD PLAYER
GENERAL
Specifications and external appearance are subject to change
without notice.
with ECO mode on: 0.26 W (EXCEPT E)
0.35W (E)
0.25 W (US,CND)
0.26 W (AEP,UK)
0.26 W(TH,KR)
0.35 W(OTHER)
 with ECO mode off:15 W (EXCEPT E)
18 W(E)
16 W (US,CND)
15 W (AEP,UK)
18 W (TH,KR)
18 W (OTHER)
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) 
(AEP, UK)         
AM usable sensitivity
350 
µV/m
AM antenna
Loop antenna
Power output
Rated: 64 W + 64 W (6 
Ω, T.H.D.
1 %, 1 kHz/DIN 45500)
Reference: 80 W + 80 W (6 
Ω, T.H.D.
10 %, 1 kHz/DIN 45324)
MUSIC POWER: 220 W + 220 W
Input
AUX IN: 1.4 V
Outputs
SPEAKERS: 6 
Ω or more
PHONES: 32 
Ω or more
Track format
4 tracks, 2 channels stereo
Frequency response
100 Hz – 10000 Hz
Recording system
AC bias
Heads
Recording/playback 
×  1, erase × 1
Laser
Semiconductor laser (
λ = 800 nm)
Emission duration: continuous
D/A converter
1 bit dual
Signal-to-noise ratio
85 dB (1 kHz, 0 dB)
Wow and flutter
Unmeasurable
Power consumption
85 W (EXCEPT US, CND)
Power consumption in standby mode
Dimensions (w/h/d)
Approx. 190 
× 277 × 353 mm
Mass
Approx. 6.8 kg
Supplied accessories:
FM antenna (1)
AM antenna (1)
Speaker cords (2)
Remote commander (1)
Batteries (2)
530 kHz to 1710 kHz (10kHz Step)
(EXCEPT AEP, UK)
531 kHz to 1710 kHz (9kHz Step)
(EXCEPT AEP, UK)
80 W (US, CND) 
Model Name Using Similar Mechanism
NEW
CD
CD Mechanism Type
CDM69BV-30CBD64NS
Section
Base Unit Name
BU-30CBD64NS
Optical Pick-up Name
A-MAX.3
TAPE
Model Name Using Similar Mechanism
NEW
Section
Tape Transport Mechanism Type
CMAL1Z240A
• Abbreviation
AUS : Australian model.
CND : Canadian model.
SP
: Singapore model.
TW
: Taiwan model.
KR
: Korean model.
TH
: Thai model.
2
CX-LMN5
1. SERVICING NOTES
······················································· 3
2. GENERAL
·········································································· 4
3. DISASSEMBLY
3-1. Side Panel (L)(R), Top Panel, Back Panel ······················ 7
3-2. CD Mechanism Section ·················································· 7
3-3. Front Panel Section ························································· 8
3-4. FRONT Board ································································· 8
3-5. Cassette Deck Mechanism ·············································· 9
3-6. Cassette Panel ································································· 9
3-7. Power Transformer ························································ 10
3-8. MAIN Board Section ···················································· 10
3-9. CD Mechanism Deck (CDM69BV-30CBD64NS) ······· 11
3-10. Base Unit Section ························································ 11
3-11. Base Unit (BU-30CBD64NS) ····································· 12
3-12. BD Board ···································································· 12
3-13. SW Board, Bracket (TOP) Assy ································· 13
3-14. CONNECTOR Board ················································· 13
3-15. Motor (Stocker) Assy (Stocker)(M761) ······················ 14
3-16. Motor (Roller) Assy (Roller)(M781) ·························· 14
3-17. Motor (Mode) Assy (Mode)(M771) ··························· 15
3-18. Rubber Roller (Slider) Assy ········································ 15
3-19. Timing Belt (Front/Rear) ············································ 16
3-20. Cam (Gear) ································································· 16
3-21. SENSOR Board ·························································· 17
4. ASSEMBLY
4-1. How to Install the Cam (EJECT LOCK) ············ 18
4-2. How to Install the Cam (GEAR) ························ 18
4-3. How to Install the Gear (MODE C) ··················· 19
4-4. How to Install the Gear (MODE CAM) ············· 19
4-5. How to Install the Rotary Encoder (S702),
Gear (STOCKER COMMUNICATION) ··········· 20
4-6. How to Install the Stocker Assy ························· 20
5. TEST MODE
···································································· 21
6. MECHANICAL ADJUSTMENTS
····························· 22
7. ELECTRICAL ADJUSTMENTS
······························· 22
8. DIAGRAMS
······································································ 27
8-1. Block Diagram — BD, Changer Section — ················· 28
— Main Section — ······························ 29
8-2. Printed Wiring Boards — BD Section — ····················· 30
8-3. Schematic Diagram — BD Section — ························· 31
8-4. Printed Wiring Boards — Changer Section — ············· 32
8-5. Schematic Diagram — Changer Section — ················· 33
8-6. Printed Wiring Boards — Front Section — ·················· 34
8-7. Schematic Diagram — Front Section — ······················ 35
8-8. Printed Wiring Boards — Main Section — ·················· 36
8-9. Schematic Diagram — Main Section 1 — ··················· 37
8-10. Schematic Diagram — Main Section 2 — ················· 38
8-11. Schematic Diagram — Main Section 3 — ················· 39
8-12. Schematic Diagram — Main Section 4 — ················· 40
8-13. Schematic Diagram — Main Section 5 — ················· 41
8-14. Schematic Diagram
—  Main Section 6/Power Section — ··············· 42
8-15. Printed Wiring Boards —  Power Section — ············· 43
8-16. IC Block Diagrams ····················································· 44
8-17. IC Pin Function Description ······································· 47
9. EXPLODED VIEWS
9-1. Panel Section ································································· 49
9-2. Front Section ································································· 50
9-3. Chassis Section ····························································· 51
9-4. CD Mechanism Deck Section 1
(CDM69BV-30CBD64NS) ··········································· 52
9-5. CD Mechanism Deck Section 2
(CDM69BV-30CBD64NS) ··········································· 53
9-6. CD Mechanism Deck Section 3
(CDM69BV-30CBD64NS) ··········································· 54
9-7. CD Mechanism Deck Section 4
(CDM69BV-30CBD64NS) ··········································· 55
9-8. CD Mechanism Deck Section 5
(CDM69BV-30CBD64NS) ··········································· 56
9-9. CD Mechanism Deck Section 6
(CDM69BV-30CBD64NS) ··········································· 57
9-10. CD Mechanism Deck Section 7
(CDM69BV-30CBD64NS) ··········································· 58
9-11. Optical pick-up Section ·············································· 59
10.ELECTRICAL PARTS LIST
······································· 60
TABLE OF CONTENTS
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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 
0
 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
3
CX-LMN5
SECTION 1
SERVICING NOTES
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
0.15 
µ
F
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
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.
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.
SAFETY  CHECK-OUT
After correcting the original service problem, perform the following
safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE  TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a VOM
or battery-operated AC voltmeter. The “limit” indication is 0.75
V, so analog meters must have an accurate low-voltage scale.
The Simpson 250 and Sanwa SH-63Trd are examples of a
passive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2 V AC range are suitable.  (See Fig. A)
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 “CD section adjustment” and check
that the S curve waveforms is output three times.
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.
NOTES  ON  HANDLING  THE  OPTICAL  PICK-UP
BLOCK  OR  BASE  UNIT
4
CX-LMN5
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
4
5
2
3
6
7
8
9
0
1
POWER
6
STANDBY/ON (8)
Switches the unit on and off (standby).
2 E
CD (8, 10-12)
Starts and pauses CD play.
TUNER/BAND (8, 14)
Selects tuner function and the tuner band.
d
TAPE (REC MUTING) (8, 17, 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.
3
ECO/RDS (8, 14-16)
Sets the ECO mode on or off.
Tuner: Activates RDS features.
SYNCHRO REC (18)
Starts recording and CD play simultaneously.
REC START/REC PAUSE (18-20)
Starts and pauses recording.
4 s
(10-12, 17, 18, 20)
CD and Tape: stops playback.
Tuner: clears a preset station.
TUNING
f
/
r-
,
+t
/
g
(8,10-12,
14, 17, 21, 22)
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.
5
VOLUME (9)
Adjusts the volume.
6
TREBLE (9)
Adjusts the treble level.
BASS (9)
Adjusts the bass level.
7 z
CD EJECT (10, 12)
Ejects the disc(s).
CD slot buttons (1-5) (8, 10-12)
Selects a disc slot.
Starts CD play for one desired disc.
8
i-Bass/DEMO (4, 9)
Produces rich and clear low frequency sound.
Switches DEMO on and off while the unit is turned off.
9
PUSH EJECT
z
 (17-19)
Opens or closes the cassette holder.
0
PHONES jack
Plug in optional headphones set with a stereo mini plug
(ø3.5 mm). Speaker output is cancelled.
Main unit: rear
Refer to the pages indicated in parentheses for details.
1
3
2
4
5
6
1
AM LOOP jack and FM 75 
terminal (4)
Plug in the supplied AM and FM antennas.
2
SUB WOOFER
3
jack
Connect optional powered sub woofer with a built-in
amplifier to the jack.
3
DIGITAL OUT (OPTICAL) jack (AEP, UK)
CD digital sound signals can be output through this jack.
Use an optical cable to connect digital audio equipment.
Fit an optical cable plug in the DIGITAL OUT (OPTICAL)
jack and push it to connect.
4
AUX 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
5
SPEAKERS
3
 terminals (4)
Connect the speaker cords of the supplied speakers.
6
AC power cord (4)
(AEP,UK)
120V
220V
230-240V
7
(E)
7
VOLTAGE SELECTOR (E)
120 V/220 V/230-240 V AC,50/60Hz
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  • Here you can View online or download the Service Manual for the Sony CX-LMN5 / XR-MN5 in PDF for free, which will help you to disassemble, recover, fix and repair Sony CX-LMN5 / XR-MN5 Audio. Information contained in Sony CX-LMN5 / XR-MN5 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.