Akai ASR-95 User manual

SERVICE MANUAL
Model:
ASR95
AUTO REVERSE CAR STEREO
RADIO CASSETTE
PLAYER WITH PLL
SYNTHESIZED TUNING
FULL DETACHABLE PANEL
www.akai.ru

CONTENTS
Page
DisassemblyInstructions .................................................................................................................................3
DisassemblyDiagram ......................................................................................................................................4
Operation Check ..............................................................................................................................................5
Block Diagram..................................................................................................................................................6
Alignment Locations.........................................................................................................................................7
Alignment Procedures......................................................................................................................................8
Printed Circuit Boards ......................................................................................................................................9
Wiring Diagram ............................................................................................................................................12
Exploded View (Panel)...................................................................................................................................13
Exploded View PartsList (Panel)...................................................................................................................14
Exploded View (Cabinet)................................................................................................................................15
Exploded View PartsList (Cabinet)................................................................................................................16
Schematic Diagram........................................................................................................................................17
Electrical Parts List.........................................................................................................................................18
Specifications .................................................................................................................................................21
2

DISASSEMBLY INSTRUCTIONS
1. Using the unlock keythat came with the unit or a similar tool, unlockthe Mounting Boxand remove
toward the rear of the unit.
2. Remove the screw (A)located on the back ofthe top cabinet then remove the Top Cabinet.
3. Open the panel and remove the Trim Ring then remove two screws (B) fromthe Base.
4. Remove two screws(C) each side ofthe base then remove the Base.
5. Remove the screw(D)and remove the Antenna Clip.
6. Remove two screws(E) and remove the Wire Clip.
Remove two screws(F) fromthe Heat Sinkthen remove the Clip (A).
7. Remove two screws(G) fromthe deck front bracket and remove two screws (H) from the deck rearbracket
cabinet.
8. Remove two screws(I)from under the bottomcabinet and remove the DeckFront Bracket.
Remove two screws(J)fromunder the bottomcabinet then remove the Deck and the DeckRear Bracket.
9. Remove two screws(K) from the heat sinkthen remove the Main Board.
10. Remove two screws(L) fromthe heat sinkthen remove the Heat Sinkand the BottomCabinet.
3

DISASSEMBLY DIAGRAM
4

OPERATION CHECK
GENERAL SPECIFICATIONS OF SIGNAL
Standard frequency
Signal output
Modulation
FM
MW
LW
FM
MW
LW
MW
FMStereo
98.1 MHz(87.5, 108 MHz)
1000 kHz(522, 1620 kHz)
200 kHz(144, 288kHz)
1mV
5 mV
5 mV
400 Hz30% MOD.
1 kHz75 kHzDEV.
90% for L onlyor
R onlypilot level 10%
AF output level FM/MW/LW
Power source voltage DC 14.0V(Backup voltage isthe 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

BLOCK DIAGRAM
6

ALIGNMENT LOCATIONS
FM/AM TUNER
7

ALIGNMENT PROCEDURES
FM ADJUSTMENT
EquipmentRequired
lAM IF/RF signal generator
lSolid-state voltmeter (SSVM)
lRegulated DC power supply
l2-CH voltmeter
lDistortion meter
FM AlignmentUsing FM Signal Generator
Note: Pressthe radio power switch to on the radio. Signal generatoroutput must be kept aslowas 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 than30 dB
FMSNC
Adjustment
98.1 MHz
Dev. 75 kHz
L+R=90 %
Int. 1 kHz
60dB Voutput
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
dev75kHz
98.1 MHz VR3
Adjust AF to stop
station.
Note: The tuner module is well-adjust and adjustmentis not recommended.
8

PRINTED CIRCUIT BOARDS
MAIN BOARD
9

KEY BOARD
TOP VIEW
10

KEY BOARD
BOTTOM VIEW
11

WIRING DIAGRAM
12

13

EXPLODED VIEWPARTS 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
34
35
36
37
38
39
40
41
42
43
Lens (S. OPC0201)
Top Panel (S. 0201) W/O CDC 143681D
KeyBoard
BottomPanel /PC
Open Knob (S.OPC0201)
PROG Spring
EJKnob (A/R) (S.OPC0201)
EJKnob Spring
REW Knob
FF Knob
SEL Knob (L-Up) (S.OPC0201)
BND/LOUD Knob (L-Up) (S.OPC0201)
TUNE Knob (L-Up) (S.OPC0201) ENCOD
VOL Knob For Encode (S.OPC0201)
Volume Back Light For SW. Encode
Left Adaptor(A)
Left Adaptor(B)
TUNE Knob Adaptor
MODE Knob (S.OPC0201)
SCAN Knob (L-Up) (S.OPC0201)
MONO Knob (L-Up) (S.OPC0201)
LOC Knob (L-Up) (S.OPC0201)
Hole Cover S. OPC0201
MUTE Knob (L-Up) (S.OPC0201)
PowerKnob (L-Up) (S.OPC0201)
1 Knob (L-Up) (S.OPC0201)
2 Knob (L-Up) (S.OPC0201)
3Knob (L-Up) (S.OPC0201)
4Knob (L-Up) (S.OPC0201)
5Knob (L-Up) (S.OPC0201)
6Knob (L-Up) (S.OPC0201)
DISP Knob (L-Up)(S. OPC0201)
EQKnob (L-Up) (S. OPC0201)
AMS Knob (L-Up)(S. OPC0201)
Middle Adaptor Spring White
Right Adaptor
LCD POS Dull TRAM. TI9012
White TRANSFLECTOR
LCD Back Light
Left BackLight
Right BackLight
CD115 RotaryEncoder VOL
Screw ∅2X8 BA/STBlack
53-A4366-81
51-A4321-82
12-14310-305
51-A4324-00
52-A4332-80
36-34254-00
52-A4329-80
36-34501-00
52-A4327-80
52-A4328-80
52-A4340-81
52-A4341-81B
52-A4342-82
52-A4354-81B
52-A4363-00
43-A4303-00
43-A4304-00
43-A4305-00
52-A4361-81
52-A4337-81
52-A4338-81
52-A4339-81
52-A4365-80
52-A4343-81
52-A4344-81
52-A4345-82
52-A4346-82
52-A4347-82
52-A4348-82
52-A4349-82
52-A4350-82
52-A4351-81
52-A4352-81
52-A5353-81
43-A4301-00
43-A4302-00
27-00178-03T
44-78101-00
52-A4358-01
52-A4360-00
52-A4359-01
18-00115-00
40-12008-21
14

EXPLODED VIEW
CABINET
15

EXPLODED VIEWPARTS LIST
CABINET
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
34
35
36
37
38
39
Panel
Trim Ring +SpraySilver
Base /ABS
Cabinet Bottom
SM909-DL (MCI5ULCKSNZ/AP-4226)
Cabinet Top A/R
Heat SinkW/OSocket; W/O CDC
Main Fiber
Main Board
Mounting Box
Spring Knob
RE Knob Spring
Cass Door OP2320-56
Tape Door Spring
Slide Block
HookSpring
HookSupport
Socket Board
16PIN Socket
Eject Lever (A/R)
REW/FF Knob Adaptor
Deck Front Support
Deck Rear Support
LA1787 FM/AM Tuner (CET-7000AF)
Touch Sheet
IC Bracket (8568)
BD435 Bracket
Spring WasherM5
BackMounting Screw
Antenna Clip
Wire Clip
Clip (A)
Screw ∅2 X 4 PH/ST
Screw ∅2 X 6 PA/ST
Screw ∅2.6 X4 BH/MS
Screw ∅2.6 X 6 BH/MS
Screw ∅2.6 X 12 BH/MS Black
Screw ∅3X6 PH/MS
Screw ∅3 X 18 PH/MS
51-64824-81B
51-A4320-00
61-A4302-00
94-00909-01W
61-A4301-00
61-A4306-00
35-A4301-00
12-14301-085
61-02905-00
52-A4323-00
36-11852-00
66-32056-00
36-33004-00
52-A4324-00
36-A4302-00
39-A4305-00
12-14310-305
25-M6368-02
52-A4321-00
52-A4320-00
39-A4301-00
39-A4302-00
29-17870-00
39-A1529-00
39-A4310-00
39-A4308-00
35-50001-00
34-68701-00
39-A4309-00
39-A4306-00
39-A1520-00
40-02004-05
40-02006-10
40-02604-01
40-02606-01
40-12612-11
40-03006-00
40-03018-00
16

SCHEMATIC DIAGRAM
17

ELECTRICALPARTS LIST
Ref. No. Parts No. Description Q ty
PC BOARD ASSY, MAIN BOARD
Q503/6
Q307/8,505
Q502,402
Q303~6,401,501,101~6
IC502
D801
D802/3/5,502/1/3,507/8/12/16,806,509
D804
ZD502,301
ZD504~7
ZD503
ZD501
IC301
IC401
IC503
IC802
IC801
IC501
IC101
XT501
C507
C506
C508
C105
C329/30,515/7/8,101/20,122,812
C516
C405/6,109/10
C119
C108
C504/5,315,803,103/16
C311/2
C111/2
C102
C804~7
C303~6
C104
C407/8,115
C314,510,107,123,328
C324~7,403/4,113/4/8
C411/4
C302,310,503,121
C313
C801
01-00435-00S
01-01175-00
01-01240-00
01-02785-00
01-02785-00
02-04001-00A
02-04148-00A
02-05401-00A
02-50051-00A
02-50068-00A
02-50091-00A
02-50100-00A
03-02313-00
03-03161-00
03-07035-00
03-07818-00
03-05868-00
03-08702-004
03-09257-00
04-00045-00
05-00220-06
05-00470-06
05-05102-00A
05-05103-00A
05-05104-00A
05-05104-82
05-05153-00A
05-05220-00A
05-05221-00A
05-05223-00A
05-05272-00A
05-05392-00A
05-05473-00A
05-05682-00A
05-06104-82
05-16225-00
06-10107-01A
06-10476-01
06-16105-01
06-16107-01
06-16225-01
06-16226-01
06-16228-00S
TRANSISTOR BD435
TRANSISTOR 2SA1175-FF
TRANSISTOR B1240
TRANSISTOR 2SC2785-FF
IC-REGULATOR 78L05
DIODE IN4001 AT. (TAPPING)
DIODE 1N-4148 AT. (TAPPING)
DIODE IN5401
ZENER DIODE 5.1V0.5WAT.
ZENER DIODE 6.8V0.5WAT.
ZENER DIODE 9.1V0.5WAT..
ZENER DIODE 10V 0.5W
I.C. PT2313L
I.C. LA-3161
IC KIA7035P
REGULATOR LC-78L18
IC TDA8568Q/N3 (PWR)
RS8702-004 CPU (CD/MP3 NON RDS)
IC TC9257F
CRYSTAL 4.5MHzHC-18U
CER CAP 22P NPO ±5%
CER CAP 47P NPO 5%
AXIAL CER CAP1000PF ±20% TP.
AXIAL CER CAP0.01µF+80/-20% TP.
AXIAL CER CAP0.1µF+80/-20% TP.
AXIAL TYPEUP050F104Z-NALXXX
AXIAL CER CAP0.015!F +80/-20% TP.
AXIAL CER CAP 22PF ±5% TP.
AXIAL CER CAP 220PF ±10% TP.
AXIAL CER CAP 0.022!F +80/-20% TP.
AXIAL CER CAP 2700PF ±20% TP.
AXIAL CER CAP 3900PF ±20% TP.
AXIAL CER CAP 0.047!F +80/-20% TP.
AXIAL CER CAP 6800PF ±20% TP.
AXIAL CER CAP0.1µF X7R ±10% TAPE
TAN CAP2.2!F 16V
E. CAP 100µF 10V (∅6.3X7 MINI)
E. CAP 47µF 10V (∅4X7 MINI)
E. CAP 1µF 16V(∅4X7 MM)
E. CAP 100µF 16V (∅6.3X7 MM)
E. CAP 2.2µF 16V(∅4X7)
E. CAP 22µF 16V (∅4X7 MM)
E. CAP 2200µF 16V (∅12.5X17 MM)
2
3
2
12
1
1
12
1
2
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
9
1
4
1
1
6
2
2
1
4
4
1
3
5
9
2
4
1
1
18

ELECTRICALPARTS LIST "CONTINUED
Ref.No. Parts No. Description Qty
C514,502
C307/8
C409/10,501,316~9,808
R505
R507,121
R541,125
R415,503,327/9,802/3,107/8
R508,416,556/7,501,101/2/12/15,520
,116
R124,322/3,403/4
R517/22/23,324/5
R509
R320~3
R328
R540
R555,106
R513/31/33/35/37,112/3,316~9
R337
R510/2
R401/2,109
R104,326
R407/8,119/20
R519
R115
R521/28~30,543~6,504,103
R502,801,511/4/8,526/7,532/4/6,414
,114,336
R330
R304/5
R311,409
R547,506
R405/6
L501/2,101
L801
06-16476-01
06-50334-01
06-50475-01
07-05010-00
07-05100-16A
07-05101-16A
07-05102-16A
07-05103-16A
07-05104-16A
07-05105-16A
07-05123-16A
07-05152-16A
07-05153-16A
07-05182-16A
07-05221-16A
07-05222-16A
07-05223-16A
07-05224-16A
07-05330-16A
07-05331-16A
07-05332-16A
07-05334-16A
07-05471-16A
07-05472-16A
07-05473-16A
07-05561-16A
07-05562-16A
07-05680-16A
07-05681-16A
07-05752-16A
09-70100-01
12-14301-085
15-27014-01
E. CAP 47µF 16V (∅5X7MM)
E. CAP 0.33µF 50V(∅4X7MM)
E. CAP 4.7µF 50 (∅4X7 MINI)
RES. 1Ω1/4W
RES. 10Ω1/16W(TAPPING)
RES. 100Ω1/16W(TAPPING)
RES. 1KΩ1/16W(TAPPING)
RES. 10KΩ1/16W(TAPPING)
RES. 100KΩ1/16W(TAPPING)
RES. 1M"1/16W(TAPPING)
RES. 12KΩ1/16W(TAPPING)
RES. 1.5KΩ1/16W(TAPPING)
RES. 15KΩ1/16W(TAPPING)
RES. 1.8KΩ1/16W(TAPPING)
RES. 220Ω1/16W(TAPPING)
RES. 2.2KΩ1/16W(TAPPING)
RES. 22KΩ1/16W(TAPPING)
RES. 220KΩ1/16W(TAPPING)
RES. 33Ω1/16W(TAPPING)
RES. 330Ω1/16W(TAPPING)
RES. 3.3KΩ1/16W(TAPPING)
RES. 330KΩ1/16W(TAPPING)
RES. 470Ω1/16W(TAPPING)
RES. 4.7KΩ1/16W(TAPPING)
RES. 47K"1/16W(TAPPING)
RES. 560Ω1/16W (TAPPING)
RES. 5.6KΩ1/16W(TAPPING)
RES. 68Ω1/16W(TAPPING)
RES. 680Ω1/16W(TAPPING)
RES. 7.5KΩ1/16W(TAPPING)
MICRO INDUCTOR 10UH AXIAL TYPE
PCB C14368X3.6 YMB 1.6X168X147
RING COIL #27X14MM V-TYPE
2
2
8
1
2
2
9
11
5
5
1
4
1
1
2
11
1
2
3
2
4
1
1
10
13
1
2
2
2
2
3
1
1
PC BOARD ASSY, FMTUNER BOARD
FM TUNER 29-17870-00 LA17878 FM/AM TUNER (CET-7000AF) 1
PC BOARD ASSY, AMTUNER BOARD
Q201/2
C201
C202
C203
C205
C204
01-01175-00
05-05102-00A
05-05103-00A
05-05104-00A
05-05223-00A
06-10107-01
TRANSISTOR 2SA1175-FF
AXIAL CER CAP1000PF 20% TP
AXIAL CER CAP0.01!F +80/-20% TP.
AXIAL CER CAP0.1!F +80/-20% TP.
AXIAL CER CAP0.022!F +80/-20% TP.
E. CAP 100!F 10V (#5X7MM MINI)
2
1
1
1
1
1
19

ELECTRICALPARTS LIST "CONTINUED
Ref.NO Part No. Description Q ty
R202
R204/5
R123
R206/7
R201
R208
07-05100-16A
07-05102-16A
07-05103-16A
07-05223-16A
07-05331-16A
07-05332-16A
RES. 10Ω1/16W(TAPPING)
RES. 1KΩ1/16W(TAPPING)
RES. 10KΩ1/16W(TAPPING)
RES. 22KΩ1/16W(TAPPING)
RES. 330Ω1/16W(TAPPING)
RES. 3.3KΩ1/16W(TAPPING)
1
2
1
2
1
1
PC BOARD ASSY, KEYBOARD
LED
IC601
C601
C602
R608
R620
R610
R627/8
R603,612
R604/13
R621/18
R611
R605/14
R622
R617
R606/15
R601
R602
R607/16/19
R609
SW
AMS
RST
02-30000-02D
03-75823-00
05-03223-10
05-03681-00
07-05122-54
07-05152-54
07-05153-54
07-05181-00
07-05181-54
07-05221-54
07-05222-54
07-63331-00
07-05331-54
07-05332-54
07-05393-54
07-05471-54
07-05472-54
07-05513-54
07-05681-54
07-05682-54
12-14310-305
16-01107-00K
16-01140-04
16-05001-00
LED #3MM RED
IC LC75823ED
CHIP CAPCM21X7R223K25AT
CHIP CER 680P 50V X7R TA
CHIP RES 1.2KΩ1/10W
CHIP RES 1.5KΩ1/10W
CHIP RES15KΩ1/10W
RES 180Ω1/4W
CHIP RES180Ω1/10W
CHIP RES220Ω1/10W
CHIP RES2.2KΩ1/10W
CHIP RES 2.7KΩ1/10W
CHIP RES330"1/10W
CHIP RES3.3KΩ1/10W
CHIP RES 39KΩ1/10W
CHIP RES470"1/10W
CHIP RES4.7KΩ0805 1/10W 5%
CHIP RES51KΩ1/10W
CHIP RES680Ω1/10W
CHIP RES 6.8KΩ1/10W
RDS143681 KB D/S 1.2X167.6X42.3
TACTSW. DCT/1101 4.3MM 2 PIN
TACTSW. KPS-1107SWH=2.5 KIE
TACTSW. TS-065001-150 H=5MM
1
1
1
1
1
1
1
2
2
2
2
1
2
1
1
2
1
1
3
1
1
18
1
1
PCBOARDASSY, SERVO BOARD
C401/2
R417
05-02152-10
07-05473-16A
MYLAR CAP 0.0015!F 10%
RES. 47K"1/16W(TAPPING)
2
1
PC BOARD ASSY, LINE OUTBOARD
R332/3
RCAOUT
07-05102-16A
20-20200-08
RES. 1kΩ1/16W (TAPPING)
DOUBLE RCACABLE 200MM Grey
2
1
PC BOARD ASSY, FRONTBOARD
LED
RST
02-30000-02D
16-05001-00
LED #3MM RED
TACTSWTS-065001-150 H=5MM
1
1
20