Alpine 5313 User manual

SERVICE
MANUAL
ZILPIN
Logic Tape Deck
Diiieatee Cea
AUTOMATIC CASSETTE GUIDE 533 reap

Contents
Speci
fiCatiOnss.
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2
Parts
Locations
and
Disassembly
Instructions...
2...
es
3
to
5
Adjustment
Procedures.
.
2...
6.
ee
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ee
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eee
6
Adjustment:
LGcations:.
¢2c8
asc ate
ne
sends;
a8 A
als
Ges See
I
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A
ett.
EB
ee 7
Replacement
of
Mechanical
Parts...
eee
eee
8
to 10
Description
of
Cassette
Deck Function...
0...
ee
eee
11 to
12
Description
of
Repeat Circuit.
i.
sok
eek
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ia
Oe
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Da
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alan
BSA
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ood
Ss
13
BIOCKEDIAGraMM
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24.4%.
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Walden
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een,
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aries
14
Paits
Layout on:
PC:
Board
sus
accoicsn oe
om
Shae
tus,
wea
Agama
Bee
kid
head
Wah
ay
Da
eee
aes
15
to
22
Wiring:
Diagrantssicc-
die
ee
naess
ai Ea lerd
ded coe eee
tag
Sd See ede
cree
og
whe ted rie
MGs
eh Seam Pigeaay
eae See
23
to
24
Schematic:
Diagrams:
4s. ue snnsen
arg
ae hee
ote
Rie dn
i
aan
A
a
a
ot Rie ee
ne
tp ae
eee
apse
tase
25
to
26
FlectricaliParts:
Vist: 2.
20,
.t.Sae
stn
fe
itiexes
8 SE Ga eel
aa
br a
NO Saas
ere
AN
he Gada atten
erase
ee
era, A
Sg
27
to
35
Cabinet
Parts Wist::2.54
ac.$
5
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acete
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ot Sidkc
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ite oe
Wala bodes
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ent
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See
dens
36
Exploded
View
(Cabinet);
occ
ie
de
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iets Ae ev
De
a
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dle Weed
eR eR
37
to
38
Exploded
View
(Cassette Deck)
0...
ee
ees
39 to
40
Gassetté:
Deck
Parts:
List. $22.08
oh
be
ed oe
a
ai ed
bide
oo
Pim aR
Eg
ant ol aan
eS ae
41
to
42
Packing:
Method:
Viewers
35202
kt
Sis
en
AR
OAS
Ss
A
Soe cad Re
EBM
HG
BE
MO
ets A
ee
AE Oe
Wace
43
Packing:Assembly
Parts
List’...
seca
go
0G Rape ete
oe
nea
Mee
wb
Aa
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Ge
a
vara
a 44
Semi-Conductor
Lead
Identifications
..
0...
ee
44
to
50
Specifications
Power
Requirement...
0...
0.
cee
ee
eee
eee
eee
ene
DC
14.0V
(11
to
16V
Allowable)
Pre-Output
Voltage/Impedance
(MTT-212)
2.0...
ee
ee
1.0V/10K
ohm
Wow
&
Flutter
(MTT-111,
JISWRMS)
2...
ee
0.2%
Tape
Speed
(MTT-111).
2...
1
ee
ee
eee
ee
eee
4.75
cm/sec.,
—1.0%
V
+3%
Signal
to
Noise
Ratio
(MTT-212)
0...
eee
62
dB
with
Dolby
NR
C
ON
54 dB with Dolby NR B ON
46 dB with Dolby NR OFF
Distortion
(MT
T2118)
acca
ao
eae
a
ee
oe
ek
a
Be
he
ee
ee
ola
ae
ha
a a
ee
Wn
a
Less
than
3.0%
Frequency
Response
(MTT-216)
..
0...
2
ee
80
to
8,000
Hz
(-—3
dB)
Stereo
Separation
(MTT-141)
2...
ee
eee
More
than
30
dB
Crosstalk:
(MTT-1.21).
0
wk
Weig
ark
eae
ey
Gat
bah
eh
dies
SA
ee
PR
de
Ee
A
a
ee
More
than
40
dB
Fast Forward/Rewind Time. . 0... 0. ce eee 100 sec. (C-60)
Semiconductors
..
0...
0
16
IC’s,
58
Transistors,
31
Diodes,
6
Zener
Diodes
Dimensions
..
0.0...
ccc
eee
eee
ener
es
160(W)
x
50(H)
x
25(D)
mm
Weighty
oa
t.3.
fk
eta
oh
Gaw
ba
ele
Seg
Sh
Oa
Ne
Week
gen
aoe
Ek
RR
A
ty
aaah
eae
ace
eee
1.6
kg
* Specifications and characteristics are subject to change without prior notice.
*
Noise
reduction
system
manufactured
under
licence
from
Dolby
Laboratories
Licensing
Corporation.
“Dolby”
and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation,

Parts Locations and Disassembly Instructions
PROGRAMMABLE MUSIC SENSOR
Switch (MUSIC SENSOR)
Tape
Loading
Slot
—_——_———————
Fast
Forward
Switch
(FF)
LOUDNESS
Switch
(LOUD)
EJECT
Switch
Tape Select Switch (METAL) Tape Direction Indicators
DOLBY NR Switch (B-Type) REPEAT Indicators
BASS/TREBLE Controls RETURN EJECT Indicator
VOLUME Control
BALANCE Control
DOLBY NR Switch (C-Type)
REPEAT Switch
LOUDNESS Indicator
METAL Indicator
DOLBY C-Type NR Indicator
DOLBY B-Type NR Indicator
RETURN EJECT Switch Tape Running Mode Indicator
CLEAR Switch PROGRAMABLE MUSIC SENSOR
Rewind
Switch
(REW)
Counter
(PMS)
case
PLAY/PROGRAM
Switch
A
Figure
1
Relay Box Control
Power Lead (E3) (Orange)
Pre-out (DIN) Connector (E1)
Remote Control (DIN)
Connector (E2)
ACC Power Lead
(E4) (Red)
Pa ares eS Fuse (5A)
Figure 2
—3-

1. Removal of Top Cover
(1) Remove four screws (A) shown in Figures 3 and
4.
(2) Remove the top cover backward.
Top Cover
2. Removal of Nosepiece
(1) Pull out the BALANCE and the VOLUME con-
tro! knobs shown in Figure 3.
(2) Remove two screws (B) shown in Figures 3 and
4.
(3) Remove the nosepiece frontward.
BALANCE
3. Removal of Switch/LED P.C. Board Control Knob
(1) Remove two screws (C) shown in Figure 5. VOLUME Control Knob (A)
(2) Carefully disconnect all leads and connectors Nosepiece
from the P.C. Board not to damage the flexible Figure 3
P.C. Board,
(3) Remove the switch/LED P.C. Board.
(4) Removal of Switch Support
1) Remove four hooks (D) shown in Figure 5
and then remove the switch support from the
bottom side.
(5) Removal of LED Support
1) Unsolder LD923 shown in Figure 5 from the
pattern side.
2) Remove two hooks (E) shown in Figure 5 and
then remove the LED support with LD923,
4. Removal! of Rear Chassis Figure 4
(1) Remove the bottom cover shown in Figure 6.
(2) Remove nine screws (F) shown in Figure 6.
(3) Remove two screws (G) shown in Figure 7.
(4) Remove the rear chassis.
SS
ee
3 [sais
Sp &
Hooks (D) Hooks (E}
Switch/LED P.C. Board LED Support
Figure 5
Rear Chassis
(G) (G)
Audio
P.C.
Board
Rear
Chassis
(F)
Bottom
Cover
(F)
Figure 7 Figure 6

5. Removal of Control P.C. Board
(1) Remove two screws (H) shown in Figure 8.
(2) Remove two screws (I} and the right side chassis
shown in Figure 9.
(3) Disconnect all lead wires from the P.C. Board.
(4) Remove the control P.C. Board.
6. Removal of Left Side Chassis
(1) Remove two screws (J) shown in Figure 8.
(2) Remove the left side chassis.
7. Removal of Cassette Deck Assembly
(1) Remove two screws (K) shown in Figure 10.
(2) Disconnect all lead wires from the P.C. Board.
(3) Remove the cassette deck assembly.
8. Removal of Deck Control P.C. Board
(1) Unsolder the part marked (L) shown in Figure 11.
(2) Unsolder the screw (M) shown in Figure 11 and
“Sy
then remove it.
(3) Disconnect all lead wires from the P.C. Board
and remove the control P.C. Board.
9. Removal of Treble/Bass P.C. Board
(1) Pull out two bass and treble control knobs shown
in Figure 8.
(2) Flatten the claws of the volume mounting bracket
with a plier as to pass through the grooves on the
= front chassis shown in Figure 8 and then remove
4
the treble/bass P.C. Board.
(3) Disconnect all lead wires.
Control P.C. Board (K)
Figure 10
Claws of Volume
Mounting Bracket
BASS & TREBLE
Control Knobs
Front Chassis Figure 8
Control! P.C. Board
(1) Right Side Chassis
Figure 9
Treble/Bass P.C. Board
Deck Control
P.C. Board
Figure 11

Adjustment Procedures
1. Connections
ag
Test Tape
[ea] >
Test Tape
2. Procedures
Adjustment
ten Test Tape
eee
Unit Under Test
Unit Under Test
Connection
AC VTVM
Frequency
Figure 12 Counter
Frequency
. Counter
Figure 13
Adjustment
Remarks
Parts
MTT-114
Head Azimuth (10 kHz)
Figure 12
Head Azimuth
T.P.1(L)} Adjustment
T.P.2(R) Screw
(Figure 14)
To obtain maximum output and no
output differences on AC VTVM
at L/Rch and Normal/Reverse side.
(3 kHz)
TT-111
Tape Speed M i Figure 12
Variable Resis-|To obtain 3000 Hz on Frequency
tor (Figure 15)| Counter.
Dolby Level MTT-150
Music Sensor Ordinary
Detecting Time Music Tape
Figure 12
Figure 13
T.P.1(L) VR201(L) |To obtain 387.5mV on AC VTVM
(R)
T.P.2(R)}| VR202 at T.P.1 and T.P.2.
To obtain 3302 5 Hz on Frequency
Counter.

Adjustment Locations
Tape Speed Adjustment
Variable Resistor
Motor Assembly
Figure 15

Replacement of Mechanical Parts
1. Removal of Cassette Deck
(1)
Remove the cassette deck according to the item
7 on “Parts Locations and Disassembly Instruc-
tions”.
2. Removal of Eject Lever Assembly
(1} Remove two screws marked ‘’ 0 ‘’ shown in Fig-
ure 16.
(2) The eject lever assembly can be removed.
3. Replacement of Keep Solenoid Assembly
(1)
(2)
Remove two screws marked “’ X ”’ to take off the
keep solenoid assembly shown in Figure 16.
(But the plunger can not be removed.)
After replacing the keep solenoid with a new
one, install it in the reverse way to disassembly
and adjust the mounting position of the eject
lock lever as shown in Figure 17.
4. Replacement of Playback Head
(1)
(2)
(3)
(4)
(5)
(6)
Remove the eject lever assembly.
Unsolder the screw marked ‘'’ 4 " and then re-
move it and two screws marked ‘’ © ‘’ shown in
Figure 19.
Remove the playback head from the P.C. Board.
After replacing the head with a new one, install
the head and switch P.C. Board with three screws
temporarily and assemble them in the reverse
way to disassembly.
After assembly, adjust the position of the head
and switch P.C. Board so that the clearances on
both ends of the slide switch become equal on
the normal and reverse sides as shown in Figure
20.
After adjustment, solder the screw marked "4"
shown in Figure 19.
Head & Switch
P.C. Board
Figure 19
Capacitor
Deck Cover
Keep Solenoid
Eject Lever Assembly
oe)
Figure 16
Lock Pin 04-03mm
oO Eject Lock Lever
Figure 17
Figure 18
mon,
oo

9. Replacement of R/F Solenoid X
(7)
Finally,
adjust
the
head
azimuth
according
to
“Head
Azimuth
Adjustment’
and
apply
a
screw-
lock
point
on
the
adjustment
screw
to
fix
it.
5, Replacement of Pinch Roller Assembly (L)
(1). Remove the eject lever assembly.
(2) Remove two “E" rings and the pinch roller spring
to take off the pinch roller assembly shown in
Figure 21.
(3) After replacing the pinch roller assembly with a
new one, clean the pinch roller with absolute
alcohol and then assemble it in the reverse way
to disassembly.
(4) After assembly, confirm the tape speed and the
wow/flutter with the test tape (MTT-111).
(5) The pinch roller (R) can be also replaced in the
same way.
6. Removal of Deck Cover
(1) Remove the screw marked “x” to take the deck
cover off shown in Figure 18.
7. Replacement of Motor
(1) Remove two screws marked “’ @ '’ shown in Fig-
ure 22.
(2) Remove the capacitor shown in Figure 16.
(3) Remove a lead wire from the motor side to take
the motor off.
(4) After replacing the motor with a new one, install
it in the reverse way to disassembly.
(5) After installing, adjust the tape speed with the
test tape (MTT-111). (Refer to ‘‘Tape Speed
Adjustment”’.}
8. Replacement of Program Solenoid
(1} Remove two screws marked ‘’ © ’’ to take off the
program solenoid shown in Figure 22.
(2) After replacing the program solenoid with a new
one, install it in the reverse way to disassembly.
(1) Remove the screw marked ‘© " to take off the
R/F solenoid shown in Figure 22.
(2) After replacing the R/F solenoid with a new one,
install it in the reverse way to disassembly.
10. Replacement of REW Solenoid
(1) Remove the screw marked “ @” to take off the
REW solenoid shown in Figure 22.
(2) After replacing the REW solenoid with a new
one, install it in the reverse way to disassembly.
Flywheel
Flywheel
Head & Switch P.C. Board
Normal Slide Switch Reverse
Figure 20
Pinch Roller (L)
Assembly
“E” Ring
Pinch Roller Spring
Figure 21
Sensor
Solenoid
Program
Solenoid
R/F Solenoid
Reel Mounting
Bracket Assembly
re Xx
REW Solenoid
Flywheel Mounting
Bracket Assembly o
Figure 22

11,
12.
13.
Replacement of Sensor Solenoid
(1) Remove the screw marked “ © ” to take off the
sensor solenoid shown in Figure 22.
(2) After replacing the sensor solenoid with a new
one, install it in the reverse way to disassembly.
Replacement of Belt and Flywheel
(1) Remove three screws marked ‘’ X " and the fly-
wheel mounting bracket shown in Figure 22 to
take off the belt and the flywheel.
NOTE: The washers shown in Figure 23 are
taken off together with the flywheel, be
sure not to lose them.
(2) After replacing the belt and the flywheel with
new ones, clean them with absolute alcohol and
assemble them in the reverse way to disassembly.
(3) After assembling, confirm the tape speed and the
wow/flutter with the test tape (MTT-111).
Replacement of Reed Switch and Reels
(1) Remove two flywheels.
(2) Remove the screw marked “4” shown in Figure
22.
(3) Remove two screws marked “ ® to take off the
guide
bracket
rivet
assembly
shown
in
Figure
23.
(4) Remove a B.T. spring from the reels to take off
the reel mounting bracket assembly shown in
Figure 23.
(5) Remove two lock washers to take off two reels
shown in Figure 24.
(6)
After
removal
of
the
reels,
remove
two
screws
marked
“'
x
'
and
the
lead
wires
to
take
off
the
reed
switch
P.C.
Board
shown
in
Figure
24.
(7)
After
replacing
the
reel
or
the
reed
switch
P.C.
Board
with
a
new
one,
assemble
it
in
the
reverse
way
to
disassembly.
(Take
care
of
the
B.T.
spring
mounting
position.)
{8)
After
assembling,
confirm
the
tape
speed
and
wow/flutter
with
the
test
tape
(MTT-111).
Guide Bracket
Rivet Assembly
B.T. Spring
Figure 23
Lock Washer
g
ae
Reed Switch
rake Board Reel Mounting
Bracket Assembly
Figure 24
f
a
—10—

oem
if
Description of Cassette Deck Function
1. AUTO LOADING OPERATION
(1) The autoloading mechanism utilizes rotation of
the motor, and a planet gear mechanism is em-
ployed in the automatic speed transform mecha-
nism to make the loading mechanism more com-
pact as well as to change a fast but small motor
torque to a slow but high power.
(2) When a cassette tape is loaded and the power is
turned on, the motor starts to rotate and the
interim pulley (B) rotates. Then, the eject idler
gear (C) rotates and this makes the gear (A) of
the planet gear section rotate. The planet gear
mechanism rotates and this makes the pinion
gear (D) rotate, which in turn makes the eject
lever assembly (E) move backward and puts the
lock pin (F) in the slot of the eject lock lever (G)
and keeps it with the solenoid, thus maintaining
the playback condition.
2. PAUSE AND EJECT OPERATION
(1) Pause operation: When the operating condition
maintained by the keep solenoid is released by
the key off or the pause button, the locked con-
dition due to the eject lock lever is also released,
and the cassette holder is raised to the loading
slot by the powerful eject spring, but as the cas-
sette guide is locked the cassette is not ejected
and the micro switch for radio/tape +B is placed
in the tape position, thus keeping the pause
mode, When the power is turned on again, the
mechanism returns to the playback mode auto-
matically. (Note: Do not leave the unit in the
pause mode for a long time.)
(2) Eject operation: In the eject operation, the cas-
sette is ejected releasing the locked condition of
the cassette guide by actuating the music sensor
solenoid furthermore.
3. FF/REW OPERATION
(1) With the normal mode selected, the tape running
direction in the FF mode is the same as the direc-
tion in the playback mode, and with the REW
mode the direction is the reverse as that of FF.
(With the reverse mode selected, this relation is
reversed.) Releasing the FF or REW modes is
conducted by pushing the play button or by the
auto-reverse mechanism actuated at the tape end.
(2) First, the FF/REW solenoid (P) is actuated, then
the trigger lever (R) is attracted, and this releases
the lock of the R/F gear (H) thereby rotating the
R/F gear. The R/F gear then engages with the
R/F idler gear (L) rotating always and turns by
360 degrees. At the same time, the R/F lever
Never jam wires, foreign
matter, etc. between gears. Keep Solenoid
Eject Lock Lever (G)
Eject Spring Pinion Gear (D)
Planet Gear Section
(C)
fo ¥ (A)
Interim Pully Gear (B)
(Rotates with motor
continuously)
Figure 25
ff R/F Lever Ass’y Pin
R/F Idler Gear (L)
Motor Pully (M)
/
FF/REW
Solenoid
=>
Trigger Lever (R)
R/F Lever Ass’y (J)
R/F Link Ass’y (K)
Figure 26
ee.

assembly (J) is raised toward the direction shown
by the arrow in center of the figure by the cam
mounted on the rear side of the R/F gear.
(3)-1. FF: With the R/F lever assembly raised, the
pin (1) of the R/F link assembly (K) is slided to
the left slot of the R/F lever assembly by the
spring. Furthermore, the pin (2) of the R/F link
assembly is raised to the direction shown by the
arrow in center of the figure, and the R/F idler
assembly (N) ganged with the pin (3) moves
toward the flywheel and the reel in the take-up
side, thus transferring the rotation.
(3)-2 REW: When the REW solenoid (Q) is actuated,
the pin (1) of the R/F link assembly (K) is guid-
ed into the right slot of the R/F lever assembly
(J). Furthermore, the pin (3) of the R/F link
assembly (K) is raised to the direction shown by
the arrow in center of the figure, and the R/F
idler assembly (N) ganged with it is moved to the
flywheel and the reel in the supply side, thus
transferring the rotation.
4. AUTO REVERSE OPERATION
When the program solenoid is actuated, the lock by
the R/F release lever is released and this pushes the
change gear (T), thus rotating it.
Next, the change gear is engaged with the reverse idler
gear (U) rotating always and rotates by 180 degrees.
At the same time, the roller mounted on rear of the
change gear moves the select lever and change the
pinch roller in the opposite direction to reverse the
tape travel direction. Furthermore, the slide switch
in the head section is also moved to switch the head
signal.
. MUSIC SENSOR OPERATION
By touching the head slightly to the tape during the
FF/REW mode of operation, non recorded portion of
a tape between music programs is detected and pro-
cessed in the control circuit. The processed output
actuates the music sensor solenoid and releases the
FF/REW lock, thus returning to the playback mode.
Reverse Idier
Flywheel Ass‘y
Take-up Side
Flywheel
Ass‘y
12)
Gear (U)
a
Interim Pulley
R/F Idler Ass’y (N)
N R/F Link Ass’y (K)
Reel Ass'y R/F Lever
Ass’y (J)
Pin (3)
Figure 27
REW Solenoid (Q)
Figure 28
Change Gear (T}
Program
Solenoid
\
Lock Pin
Figure 29

Description of Repeat Circuit
Since most part of the repeat circuit is comprised of logic circuits, it is difficult to indicate voltage values on the
schematic diagram (because the values will vary from time to time depending upon the operation mode}. According-
ly, the voltages are shown below along the route of signal flow for your reference in servicing.
“age”
(1)
(2)
(3)
(4)
Music Interval
Detection Input
(From !C901 Pin (3)) r
!
Repeat Input 1
(From !C902 Pin (1))
H (8.0V), L (OV)
Mute Input
(From {C701 Pin (17))
In a conventional playback mode, pin (3) of 1C705
and pin (6) of 1C704 are set to the ‘’H”’ level, and all
other remaining pins are maintained at the ’’L” level.
With the repeat switch pushed, the ’’H” level signal
is input to pin (5) of 1C704 and this makes pin (4)
of the same IC to the “H” level. (The pin (5) is
maintained at the ‘‘H” level as long as the repeat
switch is not released.)
When a music program is finished, the music sensor
circuit detects the finish and feeds a pulse signal
from pin (3) of IC901 to pin (9) of 1C704. Since
pin (8} has been set to the ‘’H’”’ level, the rewind
instruction pulse is developed from pin (10), thus
the rewind operation is conducted.
(Though the pulse signal applied to pin (9) is also
applied to pin (12), no output is developed from
pin (11) because of pin (13) maintained at the “L”
level.)
During the rewind mode of operation, as the mute
signal (“"H”’ level) is being applied to each pin (1) of
1C705 and pin (13) of 1C704, each pin (3) of IC705
Alin
and pin (4) of 1C704 is changed to the “‘L” ievei.
° Vcc
(5)
Rewind Instruction
(To 1C701 Pin (2))
Playback Instruction
(To 1C701 Pin (3))
: Pulse Voltage
When the music sensor circuit detects a beginning of
a music program during the rewind operation, a
pulse signal is again input from pin (3) of 1C901 to
pin (12) of 1©704. Since pin (13) is set to the ‘’'H”’
level, pin (11) develops the playback instruction
signal and the playback operation is conducted.
With the playback mode actuated, the mute signal
from 1C701 is interrupted, and pin (13) of IC704
and pin (1) of 1C705 change to the ‘L” level. Asa
result, pin (3) of 1C705 goes ‘’H”’ level and then pin
(4) of 1C704 also goes ‘’H”’ level, thus returning to
the state shown in the step 2.
The repeat operation is performed by repeating the
procedures shown above.
The 1C704 (1 — 3) constitues the circuit that functions
to release the repeat operation when one of the fast for-
ward, rewind, and music sensor switches is pushed dur-
ing the repeat operation.
The 1C704 (pins 11 — 13) is also used to develop the
playback operating instruction during the music sensor
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