Alpine 3007 User manual

SERVICE
MANUAL
/ILPINI
20W +20W Bi-Level/5-Band
Graphic
Equalizer
r RIGHT =
SOF —_t0—-0 ty ~~ GAIN — SENSITIVITY —— ——— ana 7X
om. “a FRONT REAR =F RONT REAR
FRONT
TUNER BI AMP—TIME DELAY
TAPE
® REMOTE

Contents
SPECIIICAUONS snc aes Wa Bae ae oA Sk Sea ew Beet he oe eee Be ae ee ee ee bata eran Braswod 2
Parts Location and Disassembly Instructions... ......0 00.0.0 0c eee ee ee ee en eee eee eee eae 3 to 4
"PrOUDIE: SHOOTING: 2:5. 6-4 Sh dea td. 4 tie Sb ee Ss cc 5to6
Block Diagram .........-.-.-.-. hanya asd eta teashed se glad dot an eh bs ace ete 6
Parts Layout on P.C.Boards....... eee eee er ee ee ee ee ee ere he falcecigite tec enttainn47 ice 7 to 8
VVAIEG ONGOT AO a .c.6 occu c-tacat ote a yh ves ap ek a eh ea et be ae as ese a 9 to 10
Schematic Diagram gi ciyes eae We ar ates toe ce gute Cl ae Stas oe See Ata el ee ee ee ee a Gait te cg erat aa 11 to 12
EXPlOded ViGW 52.05.04 2c 5 ee ota xan ted Eee & Ree aah Bee, BS ae bb a Bad 13 to 14
Semi-Conductor Lead Identifications... 0... ce eee eee ee yee ecenases 15
EAC AMG VICES Seco coca pte: dew Rick Ged ee ce eee Ao ei eee re et he ae AE a ales de he eed Sete te, whee ten 15
Robt s 1Gb 62 vc gyrase ooh at ene: oa a hal 2 SOA ee wy wear a hee cas eos Svat mega eee at 16 to 20
Specifications
POWER
SOUNCE:
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hed
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Boas
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Dek
Ga
Swe
WHS
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siiaca)
cigs
14V
D.C.
Grounding
System.
..............
Nagy
ite
as
wet
Ee
ae
ae
Ae
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tk
aa
Ghali
sae
Wye
Sia
cenodecds
opie
Sea
Negative
Type
CUmrent
Drains
25
1535-6
Abe
hres
ete
eed
Figo
Gy
wile
de
Silos:
Wy
ee
ek
ogee
....
3.7
A
(Output:
12
W/ch)
POWO!
OQutpU
ts
oder
ange
wae
a
Sea
Re
a
eee
ae
ee
Front:
16W
(at
1
kHz,
T.H.D.
10%)/ch
Rear: 0.5V (at 1 kHz, input 1.4V, Sensitivity Volume: Maximum/ch
Eqalization
RANGE
56
GUS
Gil wea
e
wee
ahead
ear
gan
wie
gates
She
ers
©
ace
ee
ude
&
+12
dB
Equalization
Frequency
............0..
0000
c
cee
eceeeeae
60
Hz,
250
Hz,
1
kHz,
3.5
kHz,
10
kHz
Frequency
Response
..............
000
ce
eee
eae
Front:
35
Hz
to
20
kHz
(—3
dB,
Output:
1W)
Rear:
35
Hz
to
20
kHz
(—3
dB,
Output:
0.5V)
UE
NGS
Geta
Win
prs
at
erga
an
eek
gk
aectc
deeabnes
A
aedded
nrhese
A
ceeat
oe
cae
1uW
(Input:
Short)
Input
Sensitivity...
........0..0...
Front:
1V
(Output:
12W/1
kHz,
Sensitivity
Volume:
Maximum)
Rear:
1.4V
(Output:
0.5V/1
kHz,
Sensitivity
Volume:
Maximum)
Input
Sensitivity...
0.0.
........0.0008.
1V
(Output:
12
W/1
kHz,
Sensitivity
Volume:
Maximum)
Bi-Amp
Frequency
Response...............200000000
—14
+3
dB
(Front:
500
Hz,
Rear:
2
kHz)
Time
Delay
.......
2+1
second
(Time
Delay
Gain
Control:
Maximum,
Time
Delay
Control:
Maximum)
WOT
SCICCE
1c
Ft
5 5
Seale
Gea hom
oe
aoe
ae
a
et
i
he
eae
WS
et
eae
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Tuner/Tape,
AUX.
OAC
MDE
CANCE
4
ora
a
2
ei
ee
Say
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hve,
Gee
edtrvaieak
chk
op
ase
tp
ect
ee
a,
tate
PS
ae
Dene
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oe
ee
hed
Front:
4Q
Rear:
10KQ
Semi-Conductors...
0...
.00.
00.00
cece
ee ee
eee eee
en.
10
ICs,
17
Transistors,
7
Diodes,
5
LEDs
DIMENSIONS:
&
<2-ch.c-u
5k
2
at
ee
Rae
dw!
nb
eH
aw
Bese
Ba
Rw
eto
Be
180
(W)
x
42.6
(H)
x
145
(D)
mm
MME
TN
iatscecsr
a
errata.
ser
Bee
shea
ios
eal
as
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en
tak
dn
caecum
choca
Ge,
1
kg

Eig,
oom,
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Me ie
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Parts Location and Disassembly Instructions
Left Power Output Indicator
(Front/Rear)
Equalizer
Contra
Right Power Output (60 Hz/250 Hz/1 kHz/3.5 kHz/10 kHz)
Power
lndicator
Indicator
(Front/Rear)
{
i
s
“ohh E. |
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ss emeenmaovemee =
ri
af
PLTTLLIIES
SHIIUIILE
EEE
Be
|
an
¢
@
Power Switch (On/Remote)
Tuner/Tape & Aux Select Switch
Bi-Amp Switch (In/Out)
Time Delay Switch (On/Off)
Fader
Control
(Front/Rear)
Input
Sensitivity
(High/Low)
Time Delay Gain Control (0 to Maximum)
Time
Delay
Control
(0
to
Maximum)
Figure 1
DIN Socket (E2)
(Input 2, Aux)
DIN Socket (E3)
(Digital Time Delay Unit)
DIN Socket (E1)
(Input
1,
Tape
Deck/Tuner)
|
Fuse
Holder
(8A)
Fuse
Holder
(4A)
Rear Output Din Plug
(Black) (P3)
Right Front
Speaker Cord
(Gray (P2)
Power Lead (Yellow) (PQ) |
(To Battery Directly)
Left Input Lead (Green) (P10)
(For Connecting with Radio or Player)
Right Input Lead (Gray) (P11)
(For Connecting with Radio or Player)
Ground Input Lead (Black) (P5)
(For Connecting with Radio or Player)
Power Cord (Red) (P8)
(+B For Tuner/Deck or Radio/ Power Lead (Red) (P7)
Player)
(+B
For
Aux)
(To
Ignition)
Left
Front
Speaker
Cord
Ground
Lead
(Black)
(P6)
(Green)
(P1)
(Connect the black lead to metal body
or chassis of car.)
Figure 2

1. Removal of Front Bezel
(1) Pull out nine slide knobs as shown in Figure 3.
(2) Remove four screws marked ‘ @ “, as shown in
Figure 3. ;
2. Removal of Top Cover
(1) Remove four screws marked “ m "’, as shown in
Figure 3 and 4.
3. Removal of Bottom Cover : |
(1) Remove four screws marked “ g ‘as shown in
Figure 3 and 4. ee. |
4. Removal of Rear Bracket |
(1) Remove sixteen screws marked “ © ‘', as shown in
Figure 5.
5. Removal of Side Bracket
(1) Remove four screws marked “ + “ as shown in
Figure 4 and 6.
6. Removal of Switch P.C. Board
(1) Remove eight screws marked “ yy“, as shown in
Figure 7.
(2) Disconnect all wires from the P.C. Board.
7. Removal of Equalizer P.C. Board
(1) Remove eighteen screws marked “’ 3 ‘', as shown in
Figure 7.
(2) Disconnect all wires from the P.C. Board.
8. Removal of L.E.D. P.C. Board
(1) Remove two screws marked “ 4 “', as shown in
Figure 5. :
(2) Disconnect all wires from the P.C. Board.
re
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Figure 5
Figure 7

Trouble Shooting
NO
EQUALIZATION
|
No
equalization
in
one
frequency
band.
No equalization in all frequency Defective equalizer Volume.
band. Defective IC.
Defective capacitors and/or resistors
associated with ICs.
Not supplied +B to 1C201 to 206.
NO
SOUND
No
sound
in
one
channel
Defective
speaker.
Input lead is disconnected or
broken.
No sound in all channels.
Check sound source applied to the|QK {Check if sound is being applied to|OK
channel not reproduced sound. pin @ (@) of IC 1.
Check if normal supply voltage is |OK NG | NG
NG Check sound source connected to
the equalizer.
being applied.
Defective capacitors and/or resistors
in the circuit between right (left)
input and pin @) (@) of IC 1.
Blown fuse.
Power or ground lead is discon-
nected or broken.
NG| Check if sound is being applied to
pin @ (®) of 1C1.
OK
Check if sound is being applied to
pin @ (@) of 1C206
OK
Check if sound is being applied to
pin @ (@®) of 1C206.
OK
OK
OK
NG
NG |
~
base of 0301 (Q303, 305, 307)
NG
NG
Defective IC 1.
Defective sound source or the source
is not properly connected.
Defective capacitors and/or resistors
in the circuit between pin @ (@)
of IC 1 and pin @ (@) of 1C206.
Defective IC206.
Defective capacitors and/or resistors
in the circuit between pin @) (@))
of 1C206 and base of 0301 (0303,
305, 307).
Defective Q301 (0303, 305, 307)
Defective capacitors and/or in the
circuit between emitter of Q301
(0303, 305, 307) and pin © of
IC402, 404.
Check if sound is being applied to
emitter of 0301 (Q303, 305, 307).
Check if sound is being applied to
pin G) of 1C402, 404.
OK
Defective 1C402, 404.
Defective capacitors and resistors
associated with !Cs.

SOUND DISTORTION
Defective !1C.
Defective Speaker.
EXCESSIVE HUM
Defective sound source.
Defective sound source.
Defective capacitors C502, 503.
Inferior soldering of parts. Inferior
SOUND BREAK
Block Diagram
ICl V2
R INPUT °
—_—o
C ai
INPUT
SENSITIVITY
Ic2. 142
L JNPUT 9
TIME DELAY TIME DELAY
< tt. Be Be
iP i> D> OD
tC 201 ~ 206(172)
IC 20I™-206(1/2)
contact of input wire.
Q30! Q302 OUT
BI-AMP}—o
iN
our BOOST
Q303 Q304 «od =
1 ( |RictT-FRont
IN
REAR OUTPUT
OUT
Q305 Q306
IN |
{
j
our BOOST
Q307 g30e i! at
: LEFT —
sr Hora} g Lic 20 Perron
IN

Parts
Layout
on
P.C.
Boards
EqulizrPCBord
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Wiring
Diagram
|
_MAIN AMP __P.C.B.
BLK BLK ORG
LED: PC :B.
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All resistance values are in ohms. K=1,000
3. Each(5)pin in 1C1 , 2 and 1C201 to 206 (AN6551) is grounded.
2. All capacitance values are in microfarads. P
NOTES:
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