Australian Model - TV Service · 2013. 2. 17. · DXA-WZ5 AEP Model UK Model E Model Australian Model SERVICE MANUAL STEREO CASSETTE DECK AMPLIFIER SPECIFICATIONS Ver 1.0 2003. 04
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DXA-WZ5AEP Model
UK ModelE Model
Australian Model
SERVICE MANUAL
STEREO CASSETTE DECK AMPLIFIER
SPECIFICATIONS
Ver 1.0 2003. 04
• DXA-WZ5 is deck and amplifiersection in MHC-WZ5.
Amplifier sectionEuropean model:DIN power output (rated): 75 + 75 watts (6 ohms at
1 kHz, DIN)Continuous RMS power output (reference):
100 + 100 watts (6 ohmsat 1 kHz, 10% THD)
at
at
1 kHz, 10% THD)
at 1 kHz, 10% THD)
Music power output (reference):200 + 200 watts (6 ohms
The following measured at AC 120, 220, 240 V AC, 50/60 Hz (Australian model at 240 V AC, 50/60 Hz)DIN power output (rated): 100 + 100 watts (6 ohms
1 kHz, DIN)Continuous RMS power output (reference):
140 + 140 watts (6 ohms
InputsMD (VIDEO) IN (phono jacks):
Voltage 450 mV/250 mV, impedance 47 kilohms
OutputsPHONES (stereo mini jack):
Accepts headphones of 8 ohms or more
MD (VIDEO) OUT (phono jacks):Voltage 250 mV,impedance 1 kilohms
FRONT SPEAKER: Use only the supplied speaker SS-WZ5/WZ5E
SUB WOOFER (Except for European model):Voltage 320mV,impedance 1 kilohms
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITHMARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTSLIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESECOMPONENTS WITH SONY PARTS WHOSE PART NUMBERSAPPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTSPUBLISHED BY SONY.
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.
TABLE OF CONTENTS
MODEL IDENTIFICATION— BACK PANEL —
• AbbreviationAUS : Australian modelE2 : 120V AC Area in E modelE3 : 240V AC Area in E modelKR : Korean modelTW : Taiwan model
PARTS No.VOLTAGE SELECTOR Switch
Power Voltage Indication
1. GENERAL ·········································································· 3
2. DISASSEMBLY ························································· 52-1. Case ··············································································· 52-2. Switching Power, DC Fan, Back Panel ························· 62-3. MAIN Board ································································· 62-4. AMP Board ··································································· 72-5. Front Panel Assy ···························································· 72-6. Tape mechanism deck (CWM43RR23) ························ 82-7. Lid (TC) Assy, Holder (A) Assy, Holder (B) Assy ········ 8
6. ELECTRICAL PARTS LIST ······································· 20
Unleaded solderBoards 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 withthe lead free mark due to their particular size.)
: LEAD FREE MARKUnleaded 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 beapplied to the solder joint for a slightly longer time.Soldering irons using a temperature regulator should be set toabout 350°C.Caution: The printed pattern (copper foil) may peel away if theheated tip is applied for too long, so be careful!
• Strong viscosityUnleaded solder is more viscous (sticky, less prone to flow) thanordinary solder so use caution not to let solder bridges occur suchas on IC pins, etc.
• Usable with ordinary solderIt is best to use only unleaded solder but unleaded solder mayalso be added to ordinary solder.
[When bringing in the equipment for service]In case of repairing, please bring the entire system set([HCD-WZ5,DXA-WZ5],except for the speaker) to the service station.
MODELAEP, UK models
E2 model
E3 model
AUS model
KR model
TW model
PARTS No.4-244-468-0s
4-244-468-1s
4-244-468-1s
4-244-468-3s
4-244-468-9s
4-244-468-8s
POWER VOLTAGE INDICATIONAC: 230V 50/60HZ
AC: 120V 60HZ
AC: 240V 50HZ
AC: 230-240V 50/60HZ
AC: 220V 50/60HZ
AC: 120V 50/60HZ
3
DXA-WZ5
This section is extractedfrom instruction manual.
SECTION 1GENERAL
Main unit
Deck A whDeck B wd
A Z (eject) wg (15)Z B (eject) wf (15)
ALPHABETICAL ORDER
A – L
BUTTON DESCRIPTIONS
Amplifier Tape deck
4
DXA-WZ5
Perform the following procedures 1 to 5 to hook up your system using the supplied cords and accessories. Australian model is used for illustration purpose.
PreparationPlace the components as shown below.
1 Connect the system control cables to the SYSTEM CONTROL connectors on the tape deck.
Connect to the same numbered jack in the order indicated on the rear panel.
NoteThe system cable is used to send signals and electricity between the components for interlinked operation.Be sure to insert the connector horizontally until it clicks into place. Otherwise the system will not operate correctly.
2 Connect the speakers.
Connect the speaker cords to the SPEAKER terminals on the tape deck and to the terminals on the speakers as shown below.
Speakers
Getting Started
Hooking up the system
AM loop antenna
Front speaker (right)
Front speaker (left)
FM lead antenna
Amplifier/CD player/Tuner Tape deck
Tape deckCD player/Tuner
RL
SPEAKER
Gray (3)Black (#)
Gray (3)Black (#)
Amplifier/
5
DXA-WZ5SECTION 2
DISASSEMBLY
• The equipment can be removed using the following procedure.
SET
FRONT PANEL ASSY
LID (TC) ASSY,HOLDER (A) ASSY,HOLDER (B) ASSY
CASE
MAIN BOARD
AMP BOARD
TAPE MECHANISM DECK(CWM43RR23)
SWITCHING POWER,DC FAN, BACK PANEL
2-1. Case
Note : Follow the disassembly procedure in the numerical order given.
3 three screws(+BVTP 3 × 8)
1 two screws (case 3 TP2)
2 two screws (case 3 TP2)
4 case
6
DXA-WZ5
2-2. Switching Power, DC Fan, Back Panel
2-3. MAIN Board
1 five screws(+BVTP 3 × 8)
2 six screws(+BVTP 3 × 8)
7 two screws(+BVTP 3 × 8)
9 DC fan
q; back panel
5 two screws(+BVTP 3 × 8)
8 connector (CN204)
3 connector (CN201)
4 connector (CN101)
6 switching power
1 three screws(+BVTP 3 × 8)
4 wire (flat type) (13 core)
6 connector (CN301)
8 connector (CN605)
9 connector (CN604)
q; MAIN board
7 connector (CN102)
5 connector (CN302)
2 connector (CN502)
3 connector (CN501)
7
DXA-WZ5
2-4. AMP Board
2 three screws(+BVTP 3 × 8)
1 Remove the soldering.
3 AMP board
2-5. Front Panel Assy
8 front panel assy
1 two screws(+BVTP 3 × 8)
5 claw
2 wire (flat type) (13 core)
4 wire
3 screw (+BVTP 3 × 8)
6 connector
7 connector
8
DXA-WZ5
2-6. Tape mechanism deck (CWM43RR23)
2-7. Lid (TC) Assy, Holder (A) Assy, Holder (B) Assy
1 four screws(+BVTP 2.6 × 8)
5 two screws(+BVTP 2.6 × 8)
4
3 tape mechanism deck (CWM43RR23)
6 four claws
7 base lock
2 wire
qa holder (lock)
8 lever (R)
q; lever (C)
9 lever (L)
qs button (A)
qd button (B)
1 spring (lid)
2 spring (lid-R) 3 lid (TC) assy
4 claw
8 claw
5 damper
9 damper
6 spring holder (A)
q; spring holder (B)
7 holder (A) assy
qa holder (B) assy
9
DXA-WZ5SECTION 3
ELECTRICAL ADJUSTMENTS
2. Turn the adjustment screw and check output peaks. If the peaksdo not match for L-CH and R-CH, turn the adjustment screwso that outputs match within 1dB of peak.
Note: Confirm each contents of this section first of all. If the results arenot satisfied, do the adjustment.
1. Demagnetize the record/playback head with a head demagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.3. After the adjustments, apply suitable locking compound to the
parts adjust.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.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.
• Test Tape
Record/Playback Head Azimuth AdjustmentProcedure:1. Mode: Playback
set
SPEAKER terminals (TM402)L-CH, R-CH
+–
level meter
test tapeP-4-A63J(10 kHz, –10 dB)
Screwposition
L-CHpeak
within1 dB
Outputlevel
L-CHpeak
R-CHpeak
within1 dB
Screwposition
R-CHpeak
set
test tapeP-4-A63J(10 kHz, –10 dB)
R-CH
oscilloscope
L-CH
R-CH
V H
waveform of oscilloscope
in phase 45° 90° 135° 180°
good wrong
SPEAKER terminals (TM402)L-CH
3. Mode: Playback
4. Repeat step 1 to 3 in playback (REV) mode.5. After the adjustments, apply suitable locking compound to the
pats adjusted.
DECK SECTION
Tape Signal Used for
P-4-A63J 10 kHz, –10 dB Azimuth Adjustment
0 dB=0.775 V
10
DXA-WZ5
• WAVEFORMS
SECTION 4DIAGRAMS
Note on Schematic Diagram:• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolyticsand tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwise
Note on Printed Wiring Boards:• X : parts extracted from the component side.• Y : parts extracted from the conductor side.• b : Pattern from the side which enables seeing.
• A : B+ Line.• B : B– Line.• H : adjustment for repair.• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-tion tolerances.no mark : FM( ) : CD[ ] : TAPE
• 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 : FME : PB (TAPE)a : REC (TAPE)J : CD
• AbbreviationAUS : Australian modelE2 : 120V AC Area in E modelE3 : 240V AC Area in E modelKR : Korean modelTW : Taiwan model
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.(In addition to this, the necessary note is printed in each block.)
C
B
These are omitted.
E
Q
B
These are omitted.
C E
Q
11.2 µs
15.9 Vp-p
5 V/DIV, 4 µs/DIV
1 Q301 collector (TAPE B REC)
– TC MAIN Board –
Note: The components identified by mark 0 or dotted linewith mark 0 are critical for safety.Replace only with part number specified.
Caution:Pattern face side: Parts on the pattern face side 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.
055 1-468-737-11 POWER, SWITCHING056 1-696-845-11 CORD, POWER (AUS)056 1-751-523-11 CORD, POWER (UK)056 1-777-071-63 CORD, POWER (AEP)056 1-783-820-21 CORD, POWER (TW)
056 1-791-169-11 CORD, POWER (KR)
056 1-827-226-21 CORD, POWER (E2,E3)057 1-569-007-11 ADAPTOR, CONVERSION (E3)
A-4731-819-A MAIN BOARD, COMPLETE (AEP,UK)A-4731-828-A MAIN BOARD, COMPLETE (E3,TW)A-4733-381-A MAIN BOARD, COMPLETE (AUS)A-4733-378-A MAIN BOARD, COMPLETE (E2)A-4748-134-A MAIN BOARD, COMPLETE (KR)
IC201 6-703-610-01 IC RT8H015C-T112-1IC251 6-703-679-11 IC PT8300R-TPIC301 8-759-902-15 IC BA3402IC302 8-759-701-59 IC TA7809SIC303 8-759-422-21 IC NJM4580V(TE2)