DOWNLOAD Sony AWP-ZX7 / CX-LZX7 Service Manual ↓ Size: 9.2 MB | Pages: 76 in PDF or view online for FREE

................................................

4

...................................................................

5

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

4-1.

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 Stocker Assy ...................................... 21

............................................................... 22

......................... 23

.......................... 23

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

9-1.

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

.................................. 63

• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be

damaged by heat.

• 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.

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 for AC leakage. Check leakage as
described below.

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 2V AC range are suitable. (See
Fig. A)

Ω

µ

This appliance is classified as a CLASS 1 LASER product. The
CLASS 1 LASER PRODUCT MARKING is located on the rear
exterior.

Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.

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.

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.

Carry out the “S curve check” in “CD section adjustment” and check
that the S curve waveforms is output three times.

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)

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.

This section is extracted
from instruction manual.

BASS control w; (20)

CD SYNC 7 (18)
DIRECTION ql (17, 18, 19, 22)
DISC 1 – 5 qa (10, 11, 13, 18)

Disc slot qs (10)
DISPLAY wd (16, 23)
Display window 6

FUNCTION 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)
z REC PAUSE/START 9 (18)
Z CD (eject) 0 (9, 10)
Z PUSH 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)

Use this page to find the location of buttons and other 
parts of the system that are mentioned in the text.

r

DISPLAY

wd (16, 23)

R

R

1

0

qa

qf

qd

qg

qs

2345 6

8 9

qk

qj

wd

ql

ws

wa

7

qh

w;

ALBUM + qa (11, 13, 18)

ALBUM – qd (11, 13, 18)
CD qk (10, 13, 19)
CLEAR qg (13)

CLOCK/TIMER SELECT 2

(21, 22)

CLOCK/TIMER SET 3 (9, 21, 

22)

DISC SKIP 0 (11, 13)

DISPLAY wa (16, 23) 
ENTER 9 (9, 13, 14, 21, 22)
EQ qf (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)

4

5

6

7

8

9

q;

ws

1

qd

qg

qf

wa

w;

ql

qk

qj

qh

qa

qs

3

2

Use buttons on the remote for the operation.

?/1

.

>

.

>

The clock starts working.

Press CLOCK/TIMER SET.

Press 

.

 or 

>

 until “CLOCK SET?” 

appears, then press ENTER.

Do the same procedures as step 3 to 6 
above.

• The clock settings are canceled when you disconnect 

the power cord or if a power failure occurs.

• You cannot set the clock in Power Saving Mode 

(page 23).