Service Manuals, User Guides, Schematic Diagrams or docs for : Akai ACR ACR-17W ACR-17W
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MOBILE AUDIO SYSTEM
CD O P E N /CL O S E /E J TA PE OPE N/C L O SE
POWER
PO W E R
3 i n 1 C D C A S S E T T E R E C E IV E R
PAU
1
LOUD TRK
TE
SCN MU
2 ST
IR
RP T
LOC LO U
3
AS/PS DSP
RN D AUD IO
ADJUST
4
CD EQ CLAS RP T DIS C
5
PUSH
CD TUNE/TRACK SKIP SELECT
6
BAND
AUX
IN
EQUALIZER
MODE MO /ST
MODEL: AKAI ACR-17W
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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
2
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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.
3
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DISASSEMBLY DIAGRAM
4
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OPERATION CHECK
GENERAL SPECIFICATIONS OF SIGNAL
Standard frequency FM 98.1 MHz (87.5, 108 MHz)
MW 1000 kHz (522, 1620 kHz)
LW 200 kHz (144, 288 kHz)
Signal output FM 1mV
MW 5mV
LW 5mV
Modulation MW 400 Hz 30% MOD.
FM Stereo 1 kHz 75 kHz DEV.
90% for L only or
R only pilot level 10%
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.
Test Diagram
5
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BLOCK DIAGRAM
6
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ALIGNMENT LOCATIONS
FM/MW/LW TUNER
7
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ALIGNMENT PROCEDURES
FM ADJUSTMENT
Equipment Required
AM IF/RF signal generator
Solid-state voltmeter (SSVM)
Regulated DC power supply
2-CH voltmeter
Distortion 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 Generator Display Adjustment Remarks
Coupling Setting
Stereo Signal 98.1 MHz Adjust AF
Separation Generator Int. 1 kHz output power
to antenna Dev. 75 kHz 98.1 MHz VR1 at maximum
receptacle L+R = 90 % separating
pilot = 10 % more than 30 dB
FM SNC 98.1 MHz
Adjustment Dev. 75 kHz 98.1 MHz Stereo Separation
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