Akai ACR-17W User manual

MOBILE AUDIO SYSTEM
ST
EQ CLAS
LOUD TRK
RPT DISC
PUSH
SELECT
EQUALIZER
BAND
POWER
LOU
6
3
5
2
4
1
PAU
MODE
LOC
IR
DSP
AUDIO
ADJUST
AS/PS
AUX
IN
MO/ST
SCN
RP T
3 i n 1 C D C A S S E T T E R E C E I V E R
RN D
CD O P E N /CL OS E /E J
PO W E R
TAPE OPE N/C L O SE
TUNE/TRACK SKIP
CD
CD
MUTE
MODEL: AKAI ACR-17W

2
CONTENTS
Page
Disassembly Instructions...................................................................................................................................3
Disassembly Diagram........................................................................................................................................4
Operation check.................................................................................................................................................5
Block Diagram ...................................................................................................................................................6
Alignment Locations ..........................................................................................................................................7
Alignment Procedures .......................................................................................................................................8
Printed Circuit Boards........................................................................................................................................ 9
Wiring Diagram ................................................................................................................................................18
Exploded Views (Panel) ..................................................................................................................................19
Exploded View Parts Lists (Panel) ..................................................................................................................20
Exploded Views (Cabinet) ...............................................................................................................................21
Exploded View Parts Lists (Cabinet) ...............................................................................................................22
Exploded View (Deck) .....................................................................................................................................24
Exploded View Parts List (Deck) .....................................................................................................................25
Schematic Diagram .........................................................................................................................................27
Electrical Parts List ..........................................................................................................................................30
Specifications...................................................................................................................................................37

3
DISASSEMBLY INSTRUCTIONS
1. Remove the screw (A) located on the rear of the top cabinet then remove the Top Cabinet.
2. Remove four screws (B) located on the CD bracket and remove two screws (C) from the Heat Sink of the left
side.
Remove four screws (D) from under the CD bracket then remove the CD Deck and the CD Bracket.
3. Remove four screws (E) located on the tape bracket and remove four screws (F) from under the tape
bracket then remove the Tape Bracket.
4. Remove two screws (G) from each side of the panel then remove two the Tube.
5. Take out the Panel Slide Way (L/R), The Ring and the Panel.
Remove two screws (H) from the Base of the front and remove two screws (I) from each side of the Base
then remove the Base.
6. Remove two screws (J) from on the front bracket then remove the Front Bracket.
7. Remove two screws (K) and two screws (L) from the Heat Sink of the left side then remove the IC Bracket
(7809) and the IC Bracket 8568.
8. Remove the screw (M) from the heat sink then remove the Heat Sink.
9. Remove two screws (N) from the Slide Bracket then remove the Slide Gear and the Slider Bracket.
Remove two screws (O) from the “U” Cabinet then remove the Bracket Slide Way.
10. Remove the screw (P) from the “U” cabinet of the left side and remove two screws (Q) then remove the
Gear Holder.
11. Remove two screws (R) from the “U” Cabinet then remove the Gear Bracket ASS’Y.
12. Remove the screw (S) and the screw (T) from the Rear Bracket then remove the Antenna Clip and the
Antenna Socket J-02-03 Signal. Hole.
13. Remove the screw (U) and two screws (V) from the Rear Bracket then remove the CDC FIX Bracket.
14. Remove two screws (W) from the “U” Bracket of the left side then remove the Rear Bracket and the “U”
Cabinet.

4
DISASSEMBLY DIAGRAM

5
OPERATION CHECK
GENERAL SPECIFICATIONS OF SIGNAL
Standard frequency
Signal output
Modulation
FM
MW
LW
FM
MW
LW
MW
FM Stereo
98.1 MHz (87.5, 108 MHz)
1000 kHz (522, 1620 kHz)
200 kHz (144, 288 kHz)
1mV
5mV
5mV
400 Hz 30% MOD.
1 kHz 75 kHz DEV.
90%forLonlyor
Ronlypilotlevel10%
AF output level FM/MW/LW
Power source voltage DC 14.0V (Backup voltage is the same as this)
AF load impedance 4 ohm pure resistance
Balance Center position of level
Tone Center position
The signal strength read in this section is voltage on the antenna.
TestDiagram

6
BLOCK DIAGRAM

7
ALIGNMENT LOCATIONS
FM/MW/LW TUNER

8
ALIGNMENT PROCEDURES
FM ADJUSTMENT
Equipment Required
zAM IF/RF signal generator
zSolid-state voltmeter (SSVM)
zRegulated DC power supply
z2-CH voltmeter
zDistortion meter
FM Alignment Using FM Signal Generator
Note: Press the radio power switch to on the radio. Signal generator output must be kept as low as possible
to avoid overload and clipping.
Step Generator
Coupling
Generator Display
Setting
Adjustment Remarks
Stereo
Separation
Signal
Generator
to antenna
receptacle
98.1 MHz
Int. 1 kHz
Dev. 75 kHz
L+R = 90 %
pilot = 10 %
98.1 MHz VR1
Adjust AF
output power
at maximum
separating
more than 30 dB
FM SNC
Adjustment
98.1 MHz
Dev. 75 kHz
L+R=90 %
Int. 1 kHz
60dBµV output
98.1 MHz
@ 40 dBµ 98.1 MHz VR2
Stereo Separation
25 dB (±5 dB)
STOP
SENS.
Signal
Generator
To antenna
receptacle
98.1 MHz
Mod. 1kHz
Dev 75kHz
98.1 MHz VR3
Adjust AF to stop
station.
Note: The tuner module is well-adjust and adjustment is not recommended.

9
PRINTED CIRCUIT BOARDS
MAIN BOARD
TOP VIEW

10
MAIN BOARD
BOTTOM VIEW

11
KEY BOARD
TOP VIEW

12
KEY BOARD
BOTTOM VIEW

13
CD SERVO BOARD
TOP VIEW

14
CD SERVO BOARD
BOTTOM VIEW

15
REMOTE BOARD
TOP VIEW

16
REMOTE BOARD
BOTTOM VIEW

17
FRONT BOARD

18
WIRING DIAGRAM

19
EXPLODED VIEW
PANEL

20
EXPLODED VIEW PARTS LIST
PANEL
Ref. No. Description RS Part No. Mfr’s Part No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
Lens: RM (S. OPC0000)
T. Panel W/CDC (S. OPC0000)
Bottom Panel /777
Panel Bracket ASS’Y
VOL Knob (S. OPC0000)
Volume Knob Adaptor/Blue
Volume Back-Light/Blue
Right Back-Light White
Trim Knob (L/R) Blue
Up Left Decoration E-Silver
Up Right Decoration E-Silver
Down Decoration (Elect RO Silver)
Open/1-6/LOC/AS/PS (L-Up) S.0000
Power Knob (L-Up) (S. OPC0000)
EQ Knob (Crystal/PUMRED 198C#)
TUNE/SKIP/BAND/MODE/MO/ST (L-Up)
Open/Mute/LOU/DSP (L-Up) S.0000
EQ Adaptor Sponge
Middle Back Light
Left Back Light White
CD Jack Bracket
Band Light Cover
Sensor Holder
Key Board
CD115 Rotate Encoder VOL.
LCD Cover
Color LCD NEG CD138X3.4
LCD REFLECT Paper
LCD Back Light
Screw Ø2X8 BH/ST
Screw Ø2X3 CH/MS Black
Screw Ø2.6X8 BH/ST Black
Screw Ø2.6X10 BH/ST Black
53-13849-31
51-13821-31
51-13822-00
61-13811-00
52-13829-31
52-13836-70
52-13839-70
52-13843-01
52-13838-70
52-13831-90E
52-13832-90E
52-13830-90E
52-13827-31
52-13825-31
52-13837-51R
52-13826-31
52-13828-32
81-13801-00
52-13842-00
52-13841-01
52-13834-00
52-13835-00
52-13833-00
12-01380-305
18-00115-00
39-13806-00
27-01380-01Y
44-13804-00
52-13840-00
40-12008-01
40-12003-09H
40-02608-21
40-12610-01