DOWNLOAD Sony ZS-X7 Service Manual ↓ Size: 5.59 MB | Pages: 40 in PDF or view online for FREE

Model
ZS-X7
Pages
40
Size
5.59 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / S/M ZS-X7 99 US CAN
File
zs-x7.pdf
Date

Sony ZS-X7 Service Manual ▷ View online

Ver 1.0  1999.10
MICROFILM
ZS-X7
SERVICE MANUAL
PERSONAL AUDIO SYSTEM
SPECIFICATIONS
US Model
Canadian Model
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
With 6-ohm loads, both channels driven from 100 - 15,000 Hz; rated 2.3
W per channel-minimum RMS power, with no more than 10 % total
harmonic distortion in AC operation.
Other Specifications
CD player section
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wave length: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6 µW
(This output is the value measured at a distance of about 200
mm from the objective lens surface on the optical pick-up
block with 7 mm aperture.)
Spindle speed
200 r/min (rpm) to 500 r/min (rpm) (CLV)
Number of channels
2
Frequency response
20 - 20,000 Hz +0/–0.5 dB
Wow and flutter
Below measurable limit
Radio section
Frequency range
FM: 87.6 - 108 MHz
AM: 530 - 1,710 kHz
Antennas
FM: Telescopic antenna
AM: Built-in ferrite bar antenna
General
Speaker
Full range: 8 cm (3 
1
 inches) dia.,
6 ohms, cone type (2)
Passive radiator: 12 x 6 cm (4 
3
4
 x 2 
3
8
  inches)
Outputs
Headphones jack (stereo minijack)
For 16 - 68 ohms impedance headphones
Power output (excluding US model)
4.5 W + 4.5 W (at 6 ohms, 10 % harmonic distortion
in DC operation)
Power requirements
For personal audio system:
DC IN 10.6 – 12 V jack accepts:
Supplied AC power adaptor (AC-E700) for use with 120 V
AC, 60 Hz
Supplied car battery cord (DCC-EC12) for use with 12 V car
battery
9 V DC, 6 size D (R20) batteries
For memory back-up:
4.5 V DC, 3 size AA (R6) batteries
Power consumption
AC 18 W
Model Name Using Similar Mechanism
ZS-D50
CD Mechanism Type
CDM-2411AAA
Optical Pick-up Type
DAX-01A2
— Continued on page 2 —
– 2 –
Specifications ...........................................................................  1
1. SERVICE NOTES
......................................................... 3
2. GENERAL
Location and Function of Controls .................................... 4
3. DISASSEMBLY
3-1. “Cabinet sub ASSY, Front”, “Cabinet, Rear” ............. 5
3-2. Tuner Board, Headphone Board ................................. 6
3-3. Main Board ................................................................. 6
3-4. Control Board, SW (2) Board ..................................... 7
3-5. CD Block ASSY ......................................................... 7
3-6. SW (1) Board .............................................................. 8
3-7. CD Board .................................................................... 8
3-8. Optical Pick-up Block ................................................ 9
3-9. Realy Board ................................................................ 9
3-10. Open/Close Board .................................................. 10
3-11. Regulator Board ...................................................... 10
3-12. DC IN Board ........................................................... 10
3-13. Reset Board ............................................................. 11
3-14. Battery (L) Board, Battery (R) Board ...................... 11
4. TEST MODE
................................................................. 12
5. ELECTRICAL ADJUSTMENTS
............................ 13
6. DIAGRAMS
6-1. Explanation of IC Terminals ................................... 15
6-2. Block Diagram ....................................................... 17
6-3. Schematic Diagram (Tuner Section) ...................... 22
6-4. Printed Wiring Boards (Tuner Section) .................. 25
6-5. Printed Wiring Boards (CD Section) ...................... 27
6-6. Schematic Diagram (CD Section) .......................... 29
6-7. Printed Wiring Boards (Main Section) ................... 34
6-8. Schematic Diagram (Main Section) ....................... 37
6-9. Printed Wiring Boards (Contraol Section) ............. 41
6-10. Schematic Diagram (Contraol Section) .................. 42
7. EXPLODED VIEWS
7-1. Front Cabinet Section ............................................... 48
7-2. Rear Cabinet Section ................................................ 49
7-3. CD Block Section ..................................................... 50
7-4. Optical Pick-up Section ............................................ 51
8. ELECTRICAL PARTS LIST
.................................... 52
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS 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 PIÈCES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 
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.
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.
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.
TABLE OF CONTENTS
Battery life
For personal audio system:
FM playing
Sony manganese SUM-1 (N): approx. 10 h
Sony alkaline AM-1 (N): approx. 24 h
CD playback
Sony manganese SUM-1 (N): approx. 1.5 h
Sony alkaline AM-1 (N) : approx. 3.5 h
Dimensions
Approx. 576 x 195 x 183 mm  (w/h/d)
(22 
3
4
 x 7 
3
4
 x 7 
1
4
  inches) (incl. projecting parts)
Mass
Approx. 3.2 kg (7 lb. 1 oz.) (incl. batteries)
Supplied accessories
AC power adaptor AC-E700 (1)
Car battery cord DCC-EC12 (1)
Spare fuse (1)
Shoulder strap (1)
Screws (2)
Design and specifications are subject to change without notice.
– 3 –
 NOTES ON HANDLING THE OPTICAL PICK-UP
 BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electro-
static breakdown because of the potential difference generated by
the charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic breakdown 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 emis-
sion, observe more than 30 cm away from the  objective lens.
SECTION 1
SERVICE NOTES
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
1. Open the lid for CD.
2. Push ON OPEN/CLOSE switch (S702) as following figure.
3. Press CD u button.
4. Confirm the laser diode emission while observing the object-
ing lens. When there is no emission, Auto Power Control cir-
cuit or Optical Pick-up is broken.
Objective lens moves up and down once for the focus search.
 CHUCK PLATE JIG ON REPAIRING
On repairing CD section, playing a disc without the CD lid, use
Chuck Plate Jig.
• Code number of Chuck Plate Jig : X-4918-255-1
Push ON switch
OPEN/CLOSE switch
(S702)
– 4 –
SECTION 2
GENERAL
LOCATION AND FUNCTION OF CONTROLS
FRONT PANEL
REAR PANEL
This section is extracted from
instruction manual.
1
2
3
4
5
6
7
8
9 q; qa
qs
qd
qf qg
qh
qj
qk
qlw; wa
ws
1 OPR/BATT indicator
2 POWER button
3 BAND button
4 PRESET +/ – buttons
5 DISPLAY, ENTER button
6 MONO/ST, MODE button
7 ESP button
8
x (STOP) button
9
u (play/pause) button
q; TIME SET, TUNING buttons
> +
. –
qa VOL +/ – buttons
qs i jack
qd CD lid
qf Display window
qg CLOCK button
qh TIMER button
qj STANDBY button
qk SLEEP button
ql ALARM button
w; MEGA BASS button
wa SOUND button
ws DC IN (10.6 – 12V) jack
RESET switch
The player uses a built-in micro computer for its various operations. Due to change in power supply
conditions, etc., operation may sometimes become unstable. After trying the above remedies, if the
player still does not function properly, press PRESET in the battery compartment with a pointed
material.
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Sony ZS-X7 Service Manual ▷ Download

  • DOWNLOAD Sony ZS-X7 Service Manual ↓ Size: 5.59 MB | Pages: 40 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony ZS-X7 in PDF for free, which will help you to disassemble, recover, fix and repair Sony ZS-X7 Audio. Information contained in Sony ZS-X7 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.