Aiwa CSD-MD50 Manuale utente
BASIC TAPE MECHANISM : 2ZM-1R7
BASIC MD MECHANISM : 7ZG-9B2
BASIC CD MECHANISM : 3ZG-3E2
MD/CD STEREO
RADIO CASSETTE RECORDER
CSD-MD50
S/M Code No. 09-994-328-4N2
EZ
SERVICE MANUAL
DATA
MODEL CODE : 86HR8-0117(B)
86HR8-1111(W)
86HR8-4444(L)
86HR8-8888(ST)
2
TABLE OF CONTENTS
SPECIFICATIONS .................................................................................................................................. 3
ACCESSORIES/PACKAGE LIST ........................................................................................................... 3
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING ................................................ 4
Precaution to replace Optical block......................................................................................................... 5
DISASSEMBLY INSTRUCTIONS...................................................................................................... 6-10
ELECTRICAL MAIN PARTS LIST ................................................................................................... 11-15
TRANSISTOR ILLUSTRATION ............................................................................................................ 16
FL GRID ASSIGNMENT/ANODE CONNECTION .......................................................................... 17, 18
BLOCK DIAGRAM-1 (MAIN)........................................................................................................... 19, 20
BLOCK DIAGRAM-2 (SYSTEM CONTROL) .................................................................................. 21, 22
BLOCK DIAGRAM-3 (MD) .............................................................................................................. 23, 24
WIRING-1 (MAIN) ........................................................................................................................... 25, 26
SCHEMATIC DIAGRAM-1 (TUNER) .............................................................................................. 27, 28
SCHEMATIC DIAGRAM-2 (DECK)................................................................................................. 29, 30
SCHEMATIC DIAGRAM-3 (MAIN).................................................................................................. 31, 32
WIRING-2 (SYSTEM CONTROL/CD)............................................................................................. 33, 34
SCHEMATIC DIAGRAM-4 (SYSTEM CONTROL) ......................................................................... 35, 36
WIRING-3 (FL/KEY)........................................................................................................................ 37, 38
SCHEMATIC DIAGRAM-5 (CD) ..................................................................................................... 39, 40
WIRING-4 (POWER)....................................................................................................................... 41, 42
SCHEMATIC DIAGRAM-6 (FL/KEY/POWER)................................................................................ 43, 44
WIRING-5 (MD)............................................................................................................................... 45, 46
SCHEMATIC DIAGRAM-7 (MD) ..................................................................................................... 47, 48
WIRING-6 (MECHANISM) .............................................................................................................. 49, 50
TEST MODE .................................................................................................................................... 51-55
ELECTRICAL ADJUSTMENT/PRACTICAL SERVICE FIGURE ..................................................... 56-58
IC DESCRIPTION ........................................................................................................................... 59-71
IC BLOCK DIAGRAM....................................................................................................................... 72-77
MECHANICAL PARTS LIST 1/1 ........................................................................................................... 78
MECHANICAL EXPLODED VIEW 1/1............................................................................................ 79, 80
TAPE MECHANISM EXPLODED VIEW 1/1 ................................................................................... 81, 82
TAPE MECHANISM PARTS LIST 1/1 .................................................................................................. 83
CD MECHANISM EXPLODED VIEW 1/2 ............................................................................................. 84
CD MECHANISM PARTS LIST 1/2 ...................................................................................................... 85
CD MECHANISM EXPLODED VIEW 2/2 ............................................................................................. 86
CD MECHANISM PARTS LIST 2/2 ...................................................................................................... 86
MD MECHANISM EXPLODED VIEW 1/3............................................................................................. 87
MD MECHANISM PARTS LIST 1/3...................................................................................................... 87
MD MECHANISM EXPLODED VIEW 2/3............................................................................................. 88
MD MECHANISM PARTS LIST 2/3...................................................................................................... 89
MD MECHANISM EXPLODED VIEW 3/3............................................................................................. 90
MD MECHANISM PARTS LIST 3/3...................................................................................................... 91
SPRING APPLICATION POSITION .....................................................................................................92
REFERENCE NAME LIST .................................................................................................................... 93
3
SPECIFICATIONS
REF. NO PART NO. KANRI DESCRIPTION
NO.
ACCESSORIES/PACKAGE LIST
1 8Z-CK4-952-010 RC UNIT,RC-ZAT04
2 8Z-CK3-906-010 IB,EZ(9L)I
3 87-006-240-010 AM LOOP ANT CON(KO)
!
4 87-A80-081-010 AC CORD SET ASSY,EZ BLK
•
Design and specifications are subject to change without
notice.
•
Dolby noise reduction manufactured under license from
Dolby Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol
are trademarks
of Dolby Laboratories Licensing Corporation.
•
The word “BBE” and the “BBE symbol” are trademarks
of BBE Sound,Inc.
Under license from BBE Sound,Inc.
4
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING
VAROITUS!
Laiteen Käyttäminen muulla kuin tässä käyttöohjeessa mainit-
ulla tavalla saattaa altistaa käyt-täjän turvallisuusluokan 1 ylit-
tävälle näkymättömälle lasersäteilylle.
VARNING!
Om apparaten används på annat sätt än vad som specificeras i
denna bruksanvising, kan användaren utsättas för osynling
laserstrålning, som överskrider gränsen för laserklass 1.
Caution: Invisible laser radiation when
open and interlocks defeated avoid expo-
sure to beam.
Advarsel:Usynling laserståling ved åbning,
når sikkerhedsafbrydere er ude af funktion.
Undgå udsættelse for stråling.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
ATTENTION
L'utilisation de commandes, réglages ou procédures autres que
ceux spécifiés peut entraîner une dangereuse exposition aux
radiations.
ADVARSEL!
Usynlig laserståling ved åbning, når sikkerhedsafbrydereer ude
af funktion. Undgå udsættelse for stråling.
This Compact Disc player is classified as a CLASS 1 LASER
product.
The CLASS 1 LASER PRODUCT label is located on the rear
exterior.
This set employs laser. Therefore, be sure to follow carefully the
instructions below when servicing.
WARNING!
WHEN SERVICING, DO NOT APPROACH THE LASER EXIT
WITH THE EYE TOO CLOSELY. IN CASE IT IS NECESSARY TO
CONFIRM LASER BEAM EMISSION. BE SURE TO OBSERVE
FROM A DISTANCE OF MORE THAN 30cm FROM THE
SURFACE OF THE OBJECTIVE LENS ON THE OPTICAL
PICK-UP BLOCK.
CLASS 1
KLASSE 1
LUOKAN 1
KLASS 1
LASER PRODUCT
LASER PRODUKT
LASER LAITE
LASER APPARAT
5
1
VEE
¡TRK –
Precaution to replace Optical block
(KSS-213F)
1) After the connection, remove solder shown in
the right figure.
Body or clothes electrostatic potential could ruin
laser diode in the optical block. Be sure ground
body and workbench, and use care the clothes
do not touch the diode.
Precaution to replace Optical block
(KMS-260A)
1) After the connection, remove solder shown in
the right figure.
Body or clothes electrostatic potential could ruin
laser diode in the optical block. Be sure ground
body and workbench, and use care the clothes
do not touch the diode.
6
DISASSEMBLY INSTRUCTIONS
A
B
C
Disassembling Procedure
1. Remove the seven screws (ABVT2+3-18*7) and remove the rear cabinet.
2. Remove the two screws (BBVT2+3-12*2). Remove the MAIN C.B by pulling it upward.
3. Remove the four screws (CBVT2+3-12*4).
7
4. Open the deck lid. Release the two claws 1and remove the PANEL DISP by pulling it upward.
5. Close the deck lid. Raise the deck block from the rear.
6. Remove the two screws (DBVT2+3-12*2). While raising the MAIN C.B., release the claws starting from 1to 7, and remove
the MICOM/CD C.B.
11
1
1
6
D
7
4
23
5
1
8
7. How to remove the COVER, FFC.
1) Remove the five screws (ABVT2+3-12*5) and remove the deck mechanism.
2) Remove the SPR T CASS from the rib and remove the BOX CASS.
3) Release the two claws of the COVER and FFC by pressing them in the direction of the arrow.
A
9
22
1
2
3
4) Raise the COVER and FFC in the direction of the arrow, and remove them.
8. How to remove FL C.B.
1) Release the two claws 2and pull the top of the FL C.B. to the front. The FL C.B. can be removed.
9. How to remove the CD panel
1) Move the CAM SLIDE by 1 cm to the left.
2) Move down the DRIVE C.B. and establish the “un-chucking” status.
3) Press TRY, CD2 twice.
10
MD MECHANISM
FFC
FFC
HLDR, SHLD BOT
A
A
B
B
B
HLDR, SHLD TOP
HEAD, OWH RF325-74A
PLATE ASSY,
SIDE L PLATE, SIDE R
C
C
D
10. Remove the four screws A(S-SCREW, MD) and screws B
(BVTT +3-6).
Remove the four FFCs from the connector, and remove the
MD MECHANISM in the direction of the arrow. (Fig-1)
11. Remove the HIDR and SHLD TOP in the direction of the
arrow. (Fig-2)
Fig-1
Fig-2
Fig-3
7ZG-3 A2
BOSS
a
b
b
cFig-4
13. Open the 7ZG-3 A2 in the direction of the arrow (a), remove
the BOSS by pressing it gently in the direction of the arrow
(b), and remove the 7ZG-3 A2 in the direction of the arrow
(c). (Fig-4)
Stud
Cover chassis
Eject status Fully in this direction
Fig-5
Note During Assembling:
Rotate the gear fully in the direction of the arrow, and assemble
the main cam into the specified position as shown by the
illustration. (Fig-5)
12. Remove the two screws C(VTT +2-4), and
remove the PLATE ASSY, SIDE L, PLATE, and
SIDE R in the direction of the arrow.
Remove the screw D(VW +1.7-5 w/o MFZN2C),
and remove the HEAD and OWH RF325-74A in
the direction of the arrow. (Fig-3)
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2
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