Sony CX-LZX7 User manual

SERVICE MANUAL
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
US Model
Canadian Model
AEP Model
UK Model
E Model
MICRO HI-FI COMPONENT SYSTEM
9-877-859-01
2004E1679-1
2004.05
Ver 1.0 2004.05
SPECIFICATIONS
CX-LZX7
•CX-LZX7 is the Amplifier, CD player, Tape
Deck andTuner section in AWP-ZX7.
Main Unit
Amplifier section
For the U.S. model
AUDIO POWER SPECIFICATIONS
POWEROUTPUTAND TOTAL HARMONIC
DISTORTION:
With 6-ohm loads, both channels driven, from
120 – 10,000 Hz: rated 60 wattsper channel
minimum RMS power, with no more than 10%
total harmonic distortion from 250 milliwatts to
rated output.
North American model:
Continuous RMS power output (reference):
60 + 60 W
(6 ohms at 1 kHz, 10%
THD)
Total harmonic distortion less than 0.05% (6 ohms at
1kHz, 30 W)
European model:
DIN power output (rated): 45 + 45 W
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
60 + 60 W
(6 ohms at 1 kHz, 10%
THD)
Music power output (reference):
100 + 100 W
(6 ohms at 1 kHz, 10%
THD)
Other models:
The following measured at 220 – 240 V AC, 50/60 Hz
DIN power output (rated): 45 + 45 W
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
60 + 60 W
(6 ohms at 1 kHz, 10%
THD)
Inputs
AUX IN (RCA pin jacks): Sensitivity 1 V,
impedance 47 kilohms
Outputs
PHONES (stereo mini jack):
accepts headphones with
an impedance of 32 ohms
or more
SPEAKER: accepts impedance of
6 ohms
SUB WOOFER OUT: voltage 1.5 V
CD player section
System Compact disc and digital
audio system
Laser Semiconductor laser
(λ=770 – 810 nm)
Emission duration:
continuous
Frequency response 20 Hz – 20 kHz
Signal-to-noise ratio More than 90 dB
Dynamic range More than 90 dB
Tape deck section
Recording system 4-track 2-channel stereo
Frequency response 100 – 10,000 Hz, using
Sony TYPE I cassettes
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
North American model: 87.5 – 108.0 MHz
(100-kHz step)
Other models: 87.5 – 108.0 MHz
(50-kHz step)
Antenna FM lead antenna
Antenna terminals 75 ohms unbalanced
Intermediate frequency 10.7 MHz
Model Name Using Similar Mechanism NEW
CD CD Mechanism Type CDM69CV-F4BD81B2
Section Base Unit Name BU-F4BD81B2
Optical Pick-up Name KSM-215CFP/C2NP
TAPE Model Name Using Similar Mechanism NEW
Section Tape Transport Mechanism Type CMAL1Z250A
— Continued on next page —

2
CX-LZX7
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH 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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0SUR 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.
Model Name Part No.
US model 4-254-181-0<
AEP, UK models 4-254-181-1<
E51 model 4-254-181-3<
CND model 4-254-181-4<
SP model 4-254-181-6<
Korean model 4-254-181-7<
•Abbreviation
CND : Canadian model
E51 : Chilean and Peruvian models
KR : Korean model
SP : Singapore model
MODEL IDENTIFICATION
— Back Panel —
General
P
ower requirements
N
orth American model: 120 V AC, 60 Hz
E
uropean model: 230 V AC, 50/60 Hz
K
orean model: 220 V AC, 60 Hz
O
ther models: 120 V, 220 V or
230 —240 V AC, 50/60 H
z
Adjustable with voltage
selector
P
ower consumption
N
orth American model: 60 W
E
uropean model: 60 W
0.3 W (in Power Saving
mode)
O
ther models: 70 W
D
imensions (w/h/d) incl. projecting parts and control
s
A
mplifier/Tuner/Tape/CD section:
Approx. 190 ´ 277 ´
361.4 mm
M
ass
A
mplifier/Tuner/Tape/CD section:
Approx. 6.2 kg
D
esign and specifications are subject to change
w
ithout notice.
AM tuner section
T
uning range
P
an-American model: 530 —1,710 kHz
(with the tuning interval
set at 10 kHz)
531 —1,710 kHz
(with the tuning interval
set at 9 kHz)
E
uropean model: 531 —1,602 kHz
(with the tuning interval
set at 9 kHz)
O
ther models: 530 —1,710 kHz
(with the tuning interval
set at 10 kHz)
531 —1,602 kHz
(with the tuning interval
set at 9 kHz)
A
ntenna AM loop antenna, externa
l
antenna terminal
I
ntermediate frequency 450 kHz
Part No.

3
CX-LZX7
1. SERVICING NOTES ................................................ 4
2. GENERAL ................................................................... 5
3. DISASSEMBLY
3-1. Side Panel (L)(R), Top Panel, Back Panel....................... 8
3-2. CD Mechanism Section................................................... 8
3-3. Front Panel Section ......................................................... 9
3-4. FRONT Board ................................................................. 9
3-5. Cassette Deck Mechanism, USB Board .......................... 10
3-6. Cassette Panel .................................................................. 10
3-7. Power Transformer .......................................................... 11
3-8. MAIN Board Section....................................................... 11
3-9. CD Mechanism Deck (CDM69CV-F4BD81B2)............. 12
3-10. Optical Pick-up Section ................................................... 12
3-11. Base Unit (BU-F4BD81B2) ............................................ 13
3-12. BD Board, Optical Pick-up (KSM-215CFP/C2NP) ........ 13
3-13. SW Board, Bracket (TOP) Assy ...................................... 14
3-14. CONNECTOR Board ...................................................... 14
3-15. Motor (Stocker) Assy (Stocker)(M761) .......................... 15
3-16. Motor (Roller) Assy (Roller)(M781)............................... 15
3-17. Motor (Mode) Assy (Mode)(M771) ................................ 16
3-18. Rubber Roller (Slider) Assy ............................................ 16
3-19. Timing Belt (Front/Rear)................................................. 17
3-20. Cam (Gear) ...................................................................... 17
3-21. SENSOR Board ............................................................... 18
4. ASSEMBLY
4-1. How to Install the Cam (EJECT LOCK)......................... 19
4-2. How to Install the Cam (GEAR) ..................................... 19
4-3. How to Install the Gear (MODE C) ................................ 20
4-4. How to Install the Gear (MODE CAM) .......................... 20
4-5. How to Install the Rotary Encoder (S702),
Gear (STOCKER COMMUNICATION) ........................ 21
4-6. How to Install the StockerAssy ...................................... 21
5. TEST MODE ............................................................... 22
6. MECHANICAL ADJUSTMENTS......................... 23
7. ELECTRICAL ADJUSTMENTS .......................... 23
8. DIAGRAMS
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/P ower Section — ............................ 42
8-15. Printed Wiring Boards — Power Section — ................... 43
8-16. Printed Wiring Boards — USB Section — ..................... 44
8-17. Schematic Diagram — USB Section —......................... 44
9. EXPLODEDVIEWS
9-1. Panel Section ................................................................... 52
9-2. Front Section ................................................................... 53
9-3. Chassis Section................................................................ 54
9-4. CD Mechanism Deck Section 1
(CDM69CV-F4BD81B2) ................................................ 55
9-5. CD Mechanism Deck Section 2
(CDM69CV-F4BD81B2) ................................................ 56
9-6. CD Mechanism Deck Section 3
(CDM69CV-F4BD81B2) ................................................ 57
9-7. CD Mechanism Deck Section 4
(CDM69CV-F4BD81B2) ................................................ 58
9-8. CD Mechanism Deck Section 5
(CDM69CV-F4BD81B2) ................................................ 59
9-9. CD Mechanism Deck Section 6
(CDM69CV-F4BD81B2) ................................................ 60
9-10. CD Mechanism Deck Section 7
(CDM69CV-F4BD81B2) ................................................ 61
9-11. Optical Pick-up Section ................................................... 62
10. ELECTRICAL PARTS LIST .................................. 63
TABLE OF CONTENTS

4
CX-LZX7 SECTION 1
SERVICING NOTES
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.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer:
Check the antenna terminals, metal trim,“metallized” knobs, screws,
and all other exposed metal parts forAC leakage. Check leakage as
described below.
LEAKAGE
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-operatedAC 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-operatedACvoltmeter. The “limit” indication
is 0.75V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passiveVOM that is suitable. Nearly all battery operated
digital multimeters that have a 2VAC range are suitable. (See
Fig. A)
1.5 k Ω
0
.15 µFAC
voltmet
er
(0.75 V
)
To Exposed Metal
Parts on Set
Earth Ground
Fig.A. Using an AC voltmeter to check AC leakage.
This appliance is classified as a CLASS 1 LASER product. The
CLASS 1 LASER PRODUCT MARKING is located on the rear
exterior.
CAUTION
Use of controls or adjustments or performance of procedures
otherthanthosespecifiedhereinmayresult in hazardousradiation
exposure.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
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
Carryoutthe“Scurvecheck” 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 viscou-s (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.

5
CX-LZX7
SECTION 2
GENERAL This section is extracted
from instruction manual.
Main unit
B
ASS control w; (20)
C
D SYNC 7(18)
D
IRECTION ql (17, 18, 19, 22)
D
ISC 1 – 5 qa (10, 11, 13, 18)
D
isc slot qs (10)
D
ISPLAY wd (16, 23)
D
isplay window 6
F
UNCTION 5(9, 10, 13, 14, 15,
17, 19, 26, 29, 31)
i
-Bass qf (20, 34)
PHONES jack ws
PLAY MODE ql (11, 13, 18)
Remote sensor 8
TREBLE control wa (20)
TUNER BAND 4(14, 15, 19)
TUNING +/– qj (14, 15)
TUNING MODE ql (14, 15)
USB port qh (25, 30)
VOLUME control qg (29)
?/1 (power) 1(8, 15, 26, 34)
TAPE nN (play) 2(17, 18
,
22)
CD NX (play pause) 3(11)
zREC PAUSE/START 9(18
)
ZCD (eject) 0(9, 10)
ZPUSH qd (17)
./> (go back/go forward
)
qj (11)
m/M (rewind/fast forward)
qj (9, 11, 15, 17)
x(stop) qk (11, 15, 17, 18)
List of button locations and reference pages
How to use this page
Use this page to find the location of buttons and other
parts of the system that are mentioned in the text.
Illustration number
r
DISPLAY wd (16, 23)
RR
Name of button/part Reference page
ALPHABETICAL ORDER
A – O P – Z
BUTTON DESCRIPTIONS
1
0
qa
qf
qd
qg
qs
2345 6 89
qk
qj
wd
ql
ws
wa
7
qh
w;

6
CX-LZX7
Remote control
A
LBUM + qa (11, 13, 18)
A
LBUM – qd (11, 13, 18)
C
D qk (10, 13, 19)
C
LEAR qg (13)
C
LOCK/TIMER SELECT 2
(21, 22)
C
LOCK/TIMER SET 3(9, 21,
22)
D
ISC SKIP 0(11, 13)
D
ISPLAY wa (16, 23)
E
NTER 9(9, 13, 14, 21, 22)
E
Qqf (20)
FM MODE 4(16)
FUNCTION 6(10, 13, 14, 15,
17, 19, 26, 29, 31)
PLAY MODE w; (11, 13)
REPEAT 4(12)
SLEEP ws (20)
TAPE qj (17, 19)
TUNER BAND 5(14, 15, 19)
TUNER MEMORY ql (14)
TUNING MODE w; (14, 15)
VOLUME +/– qs (21, 29)
?/1 (power) 1(8, 15, 21, 26)
m/M (rewind/fast forward)
7(11, 15, 17)
X(pause) 8(11, 17)
x(stop) 8(11, 17, 18, 22)
N(play) 8(11, 17)
–/+ (tuning) qh (14, 20)
./> (go back/go forward
)
qh (9, 11, 21)
ALPHABETICAL ORDER
A – E F – Z
BUTTON DESCRIPTIONS
4
5
6
7
8
9
q;
ws 1
qd
qg
qf
wa
w;
ql
qk
qj
qh
qa
qs
3
2
U
se buttons on the remote for the operation.
1
Press ?/1 to turn on the system.
2
Press CLOCK/TIMER SET.
3
Press .or >repeatedly to set th
e
hour.
4
Press ENTER.
5
Press .or >repeatedly to set th
e
minute.
6
Press ENTER.
The clock starts working.
To adjust the clock
1Press CLOCK/TIMER SET.
2Press .or >until “CLOCK SET?”
appears, then press ENTER.
3Do the same procedures as step 3 to 6
above.
Notes
•
The clock settings are canceledwhen you disconnec
t
the power cord or if a power failure occurs.
•
You cannot set the clock in Power Saving Mode
(page 23).
Setting the clock

7
CX-LZX7
SECTION 3
DISASSEMBLY
•This set can be disassembled in the order shown below.
•The dotted square with arrow ( ) prompts you to move to the next job when all of the works within the dotted square ( ) are completed.
3-9.CD MECHANISM DECK
(CDM69CV-F4BD81B2)
(Page 12)
3-2.CD MECHANISM SECTION
(Page 8)
3-3.FRONT PANEL SECTION
(Page 9)
3-4.FRONT BOARD
(Page 9) 3-5.CASSETTE DECK MECHANISM,
USB BOARD
(Page 10)
3-8.MAIN BOARD SECTION
(Page 11)
3-10.OPTICAL PICK-UP SECTION
(Page 12)
3-7.POWER TRANSFORMER
(Page 11)
3-6.CASSETTE PANEL
(Page 10)
3-1.SIDE PANEL (L) (R), TOP PANEL,
BACK PANEL
(Page 8)
3-18.RUBBER ROLLER
(SLIDER) ASSY
(Page 16)
3-19.TIMING BELT
(FRONT/REAR)
(Page 17)
3-20.CAM (GEAR)
(Page 17)
3-21.SENSOR BOARD
(Page 18)
3-13.SW BOARD,
BRACKET (TOP) ASSY
(Page 14)
3-11.BASE UNIT
(BU-F4BD81B)
(Page 13)
3-17.MOTOR (MODE)
ASSY (MODE) (M771)
(Page 16)
3-16.MOTOR (ROLLER)
ASSY (ROLLER) (M781)
(Page 15)
3-15.MOTOR (STOCKER)
ASSY (STOCKER) (M761)
(Page 15)
3-14.CONNECTOR BOARD
(Page 14)
SET
3-12.BD BOARD,
OPTICAL PICK-UP
(KSM-215CFP/C2NP)
(Page 13)

8
CX-LZX7
Note: Follow the disassembly procedure in the numerical order given.
3-1. SIDE PANEL (L)(R),TOP PANEL, BACK PANEL
3-2. CD MECHANISM SECTION
6CD mechanism sectio
n
2w ire (flat type)
27core (CN901)
1w ire (flat type)
27core (CN902)
3screw
(QT2+3 ×10)
4screw
(QT2+3 ×10)
5claw
qj connector
2p(CN292)
1four screws
(+BVTP3 ×10(BLK))
4six screws
(+BVTP3 ×10(BLK))
qg nine screws
(+BVTP3 ×10(BLK
))
qh w ire (flat type)
15core(CN602)
7screw (+BVTP3 ×10(BLK))
3side panel (L)
qa top panel
qk back panel
qd three screws
(QT2+3 ×10)
8screw
(QT2+3 ×10)
9screw
(QT2+3 ×10)
qs screw
(QT2+3 ×10)
0screw
(QT2+3 ×10)
qf screw
(QT2+3 ×10)
5three claws
2three claws
6side panel (R)

9
CX-LZX7
3-3. FRONT PANEL SECTION
3-4. FRONT BOARD
3connector
(CN203)
9connector
(CN302)
1w
ire (flat type)
19core (CN904)
4w ire (flat type)
7core (CN701)
0front panel section
2w
ire (flat type)
8core (
cassette deck mechanism )
5two screws
(+BVTP3 ×6)
6screw
(QT2+3 ×6)
7screw
(QT2+3 ×6)
8two claws
6screw
(+BVTP3 ×10)
7two claws
8two claws
9indicator (BASS),
I-BASS sheet
5thirteen screws
(+BVTP3 ×10)
3screw
(+BVWHTP3 ×
8)
2knob (VOL)
1two knobs (BT)
qa FRONT board
4HP board
0w ire (flat type)
19core (CN905)

10
CX-LZX7
3-5. CASSETTE DECK MECHANISM, USB BOARD
3-6. CASSETTE PANEL
4cassette deck mechanism
9USB board
0shield case
(USB A)
qa USB shield plate
7shield case
(USB B)
1three screws
(+BVTP3 ×1
0)
2screw
(+BVTP3 ×10)
8screw
(+BVTP3 ×6)
5two screws
(+BVTP3 ×10)
3shield (DECK)
6w ire (flat type)
7core (CN801)
4cassette panel
3four claws
5window case
2
1

11
CX-LZX7
3-7. POWERTRANSFORMER
3-8. MAIN BOARD SECTION
2connector
5p(CN257)
6connector
2p(CN251)
7power transforme
r
3cable tie
4ferrite core
1cable tie
5four s-screw
s
(ITC +4- 10
R)
1connector
2p(CN202)
5screw
(BVIT3B+3- 8R W/O)
6two screws
(BVIT3B+3- 8R W/O)
2screw
(BVIT3B+3- 8R W/O
)
4holder (pwb.PT)
0holder pwb
3two claws
7six screws
(+BVTP3 ×10)
8four screws
(+BVTP3 ×10)
9screw
(+BVTP3 ×10)
qs MAIN board
qa heat sink assy (MAIN)

12
CX-LZX7
3-9. CD MECHANISM DECK (CDM69CV-F4BD81B2)
3-10. OPTICAL PICK-UP SECTION
1four screws
(+BVTP3 ×10)
2CD mechanism deck
(CDM69CV-F4BD81B2)
4 boss
6 boss
3 boss
5 boss
1floating screw (DIA. 1
2)
2 screw (+PTPWH) (M2) (DIA. 7)
7optical pick-up section

13
CX-LZX7
3-11. BASE UNIT (BU-F4BD81B2)
3-12. BD BOARD, OPTICAL PICK-UP (KSM-215CFP/C2NP)
1tension spring (BU30-1)
qs base unit (BU-F4BD81B2)
8vibration proof rubber
3floating screw
(+PTPWHM2.6 ×6)
5floating screw
(+PTPWHM2.6 ×6)
4floating screw
(+PTPWHM2.6 ×6)
2floating screw
(+PTPWHM2.6 ×6)
9vibration proof rubber
q; vibration proof rubbers
7vibration proof rubber
qa w ire (flat type)
19corre (CN202)
6
1Remove the sold
er
(four portions).
3BD board
4optical pick-up (KSM-215CFP/C2NP)
2wire (flat type) (16 core)

14
CX-LZX7
3-13. SW BOARD, BRACKET (TOP) ASSY
3-14. CONNECTOR BOARD
6 six screws
(BVTP2.6 ×
8)
5 SW (4) board
4 SW (3) board
3 SW (2) board
2 SW (1) board
7 bracket (top) assy
1four screws
(BTP2.6 × 6)
3
1 Remove five solders.
– bottom view –
C
ONNECTOR board
2 four screws
(BVTP2.6
×
8)
4connector
(CN710)
5connector
(CN703)
6CONNECTOR board

15
CX-LZX7
3-15. MOTOR (STOCKER) ASSY (STOCKER)(M761)
3-16. MOTOR (ROLLER) ASSY (ROLLER)(M781)
4
5 stocker motor board
3 two screws
(BVTP2.6
× 8)
2 Remove two solde
rs
6motor (stocker) ass
y
(stocker) (M761)
1belt (stocker)
1 belt (roller V)
4ROLLER MOTOR boa
rd
2 Remove two solders.
3 two screws
5 motor (roller) assy
(roller)(M781)

16
CX-LZX7
3-17. MOTOR (MODE) ASSY (MODE)(M771)
3-18. RUBBER ROLLER (SLIDER) ASSY
1 Remove five solders
of rotary encoder.
2 Remove two solders
of motor (M771)
M
ODE MOTOR
b
oard
3 two screws
(BVTP2.6
× 8)
4 MODE MOTOR board
5 belt (mode V)
6 motor (mode) assy
(mode) (M771)
qg sub chassis
qf screw
(BVTP2.6 × 8)
8 step screw
qs step screw
5 step screw
9tension
spring
(slider 2)
6tension spring
(base slider 4)
0 rubber roller
(slider 4) assy
7 rubber roller
(slider 1) assy
qa rubber roller
(slider 2) assy
qd rubber roller
(slider 1) assy
3tension spring
(base slider 5)
1
step screw
4 rubber roller
(slider 5) assy
2 rubber roller
(slider S) assy
bracket (top) assy

17
CX-LZX7
3-19.TIMING BELT (FRONT/REAR)
3-20. CAM (GEAR)
Note: Refer to Section 4 assembly (see page 19)
2 gear (mode cam)
: Note
1 screw
(PTPWH2.6
× 8)
3 slider (mode cam) assy
5 two gears
(center)
7 two gears (center)
8 timing belt (rear)
9 timing belt (rear)
4 gear
(timing)
6 timing belt
(front)
timing belt
(rear)
When install three timing belts,
its pass under each claws.
timing belt
(rear)
timing belt (front)
claw
claw
claw
claw
qf cam (gear)
: Note
qs gear(mode cam)
0gear (mode C)
:Note
4gear (mode 5)
8gear (mode D)
6gear (mode 5)
1screw(PTPWH2.6 ×8)
7screw (PTPWH2.6 ×8)
9screw
(PTPWH2.6 ×8)
qa screw
(PTPWH2.6 ×8)
3screw (PTPWH2.6 ×8)
5screw (PTPWH2.6 ×
8)
2pulley
(mode deceleration)
qd screw
N
ote: Refer to assembly
(Section 4).

18
CX-LZX7
3-21. SENSOR BOARD
ql harness
qd gear (eject lock)
q; cam (eject lock)
: Note
qh two claws
qj rotary encoder
(S771)
qf gear
(mode B)
w; screw
(BVTP2.6 ×8) qg screw
(PTPWH2.6 ×8)
wa SENSOR board
8shaft
(shutter)
7compression spring
(shutter)
qs cam (BU U/D)
qa screw
(PTPWH2.6 ×8) 3screw
(BVTP2.6 ×8)
1screw
(PTPWH2.6 ×8)
4two screws
(BVTP2.6 ×8)
2lever shutter (A)
5base (shutter) block
6gear (mode A)
9screw
(PTPWH2.6 ×8)
qk claw
Note: Refer to Section 4 assembly (see page 19
).

19
CX-LZX7
• This set can be assembled in the order shown below.
4-1. HOW TO INSTALLTHE CAM (EJECT LOCK)
SECTION 4
ASSEMBLY
4-2. HOW TO INSTALLTHE CAM (GEAR)
boss
cam (gear)
mark
cam (BU U/D)
– bottom view • front –
1 Check that the cam (BU U/D) can not be rotated in the direction of arrow
.
2 Align the mark on the cam (gear) with the boss as shown in the figure
and install the cam (gear).
mark
cam (BU U/D)
cam (eject lock)
– bottom view • front –
gear (eject lock)
1 Rotate the cam (BU U/D) fully in the direction of arrow.
2 Engage the gear (eject lock) and the gear of the cam (eject loc
k)
aligning the mark with the center of the gear (eject lock).

20
CX-LZX7
4-3. HOWTO INSTALLTHE GEAR (MODE C)
4-4. HOWTO INSTALLTHE GEAR (MODE CAM)
1 Align the mark on the rotary encoder (S771) with the projection of the assy.
2 Check that the cam (BU U/D) can not be rotated in the direction of arrow.
3 Install the gear ( mode C)
– bottom view • front –
gear (
mode C)
rotary encoder
(S771) cam (BU U/D)
mark projection chassis
mark B
slider (mode cam) assy
shaft
mark A
mark D
gear (mode cam)
c
am (gear)
mark C
1 Slide the shaft in the direction of arrow.
2 Align mark Aon the gear (mode cam) with mark Bon the slider (mode cam) assy,
then install the gear (mode cam).
3 Check that mark Con the gear (mode cam) is in alignment with mark Don the cam (gea
r).
– bottom view • front –