Akai AP-M50 User manual

~
AKAL
service
mnt
FULL AUTOMATIC PLAYER | |
mov. AP-M50

ABBREVIATIONS
FOR
SERVICE
MANUAL
move. AP-M50
ABBREVIATIONS
ey
EXPLANATION
pc ane Direct Current
MM Main Motor
AM Arm Motor
TS Tracking Sensor
O/S ee Open/Close
L
|
Low
(Referring
to
Voltage)
H , High (Referring to Voltage)
LED Light Emitting Diode
FF Fast Forward
FWD ForWarD
REV | ; REVerse

FULL AUTOMATIC PLAYER
mopeLA P-M50
SECTION 1 SERVICE MANUAL ...........--------- 3
SECTION 2. PARTS LIST .............2.. 222 eee eee 11
SERVICE MANUAL AP-M50

SAFETY INSTRUCTIONS
SAFETY CHECK AFTER SERVICING
Confirm the specified insulation resistance between power cord plug prongs and externally exposed parts of the set is
greater than 10 Mohms, but for equipment with external antenna terminals (tuner, receiver, etc.) and is intended for
[C] or [A], specified insulation resistance should be more than 2.2 Mohms (ground terminals, microphone jacks,
headphone jacks. line-in-out jacks etc.) .
PRECAUTIONS DURING SERVICING
1.
2.
BO 008 SDS
Parts identified by the A\ symbol parts are critical for safety.
Replace only with parts number specified.
In addition to safety, other parts and assemblies are specified for conformance with such regulations as those
applying to spurious radiation. These must also be replaced only with specified replacements.
Examples: RF -converters, tuner units, antenna selector switches, RF cables, noise blocking capacitors, noise
blocking filters, etc.
Use specified internal wiring. Note especially:
1) Wires covered with PVC tubing
2) Double insulated wires
3) High voltage leads
Use specified insulating materials for hazardous live parts. Note especially:
1) Insulation Tape
2) PVC tubing
3) Spacers (Insulating Barriers)
4) Insulation sheets for transistors
5) Plastic screws for fixing microswitch (especially in turntable)
When replacing AC primary side components (transformers, power cords, noise blocking capacitors, etc.), wrap
ends of wires securely about the terminals before soldering.
o> c>
Observe that wires do not contact heat producing parts (heatsinks, oxide metal film resistors, fusible resistors, etc.).
Check that replaced wires do not contact sharp edged or pointed parts.
Also check areas surrounding repaired locations.
Use care that foreign objects (screws, solder droplets, etc.) do not remain inside the set.
VOLTAGE CONVERSION
Each machine is preset at factory according to its destination, but some machines can be set to 110V/120V or
220V/240V as required.
If your machine’s voltage can be converted:
Before connecting the power cord or assembling the platter turn the Voltage Selector located on the top of the
cabinet with a screwdriver until the correct voltage is indicated.
Models for USA, Canada, Europe, UK and Australia are not equipped with this facility.
NOTE: Cycle conversion is unnecessary since AP-M50 use a DC motors.
Se ae er TE —=- SERVICE MANUAL AP-M50

SECTION 1
SERVICE MANUAL
TABLE OF CONTENTS
I. SPECIFICATIONS ...............---- biped died MUGS lens ptt Diet che eel eG edi tates 4
il.>. ‘DISMANTEING OF UNIT sieosnct0 oh. Side Sassen teas ove s ee aat eee wetter eae 5
HERS “CONT ROU S 485 eters Sore es betes oat «Dan Pe Raceseien a ata dylan aoa cebdarela esha a deat 6
IV; PRINCIPAL PARTS LOCATION (53.53 sc pavedied oes see he oe Ba here oie eee tiae nue ie 9
We. ADIUSIMEN T 3x 5 Goa ciscdas oe Hi Pate dele keen Foe TS ee ew eae Sa gee Re ipa 8
1. ORDINARY MECHANICAL ADJUSTMENT....... ka ciccateansctr acacia Set a actsone wang 8
2. ELEVATION AND POSITION ADJUSTMENT ........... 0.0 e cece e eee eee e teen ence enes 8
3. ARM OFFSET VOLTAGE ADJUSTMENT (Refer to Fig. 5-2) .......0. 20sec eee ee cence eee ees 9
4. TRACKING SENSOR SENSITIVITY ADJUSTMENT (Refer to Fig. 5-2) ....... 0.00. sees ee eee 9
5. MUSIC INTERVAL SENSOR SENSITIVITY ADJUSTMENT (Refer to Fig. 5-2)...........-..4. 9
6. SPEED ADJUSTMENT (Refer to Fig. 5-3)... 0. ccc cece cence cece ence nent een eet ne enens 9
7. LEAD-IN POSITION ADJUSTMENT (Refer to Fig. 5-4) 0.060.000. cc cece cece cece eee eee eeee 9
VI. PC BOARD TITLES AND IDENTIFICATION NUMBERS ............0.000 020s e cece eeeeees 10
For basic adjustments, measuring methods, and operating principles, refer to GENERAL TECHNICAL
MANUAL.
SERVICE MANUAL AP-MS50

Il. SPECIFICATIONS
TURNTABLE (PLATTER)
Aluminum Alloy Diecast
DRIVE SYSTEM ‘| Belt Drive
MOTOR EG-Servo DC Motor
SPEED 33-1/3 & 45 rpm
WOW & FLUTTER 0.04% (W RMS)
RUMBLE 70dB (DIN-B)
TONE ARM '| Static Balance Linear
Tracking Type
EFFECTIVE ARM LENGTH 90mm
ARM LIFTER ~ | Oil Damped
OVER HANG Omm
CARTRIDGE
OUTPUT VOLTAGE
CHANNEL SEPARATION
OPTICAL STYLUS PRESSURE
2.5mV +3dB (at 1kHz)
More than 18dB
2g
POWER REQUIREMENTS
120V, 60Hz for USA & Canada
220V, 50Hz for Europe except UK
240V, SOHz for UK & Australia
110V/120V—220V/240V, 50/60Hz Convertible for other countries
DIMENSIONS 350(W) x 90(H) x320(D) mm
(13.8 x 3.5 x 12.6 inches)
WEIGHT 3.8kg (8.4 Ibs)
* For improvement purposes, specifications and design are subject to change without notice.
SERVICE MANUAL AP-M50

ll. DISMANTLING OF UNIT
BOTTOM COVER
In case of trouble, etc. necessitating dismantling, please
dismantle in the order shown in the photographs.
Reassemble in reverse order.
SCREWS
DUST COVER
RUBBER
SHEET
PLATTER
SCREWS
SERVICE MANUAL AP-M50

lil, CONTROLS
DUST COVER
wa
0
TONE ARM
ae
A
a
ay
| RUBBER MAT
: )
SPEED SELECTOR
A
2,
SENSITIVITY
eral
SELECTOR
————————
J.
—————s—sézaMm
eS
START
CUT
(<==)
BUTTON
POWER ON/OFF
SWITCH
PROGRAM
DISPLAY
|
»~rpm
FORWARD
(
<K))
and
RANDOM
PROGRAM
BACKWARD
(
b>
)
BUTTON
PLAY
SYSTEM
BUTTONS
CUE
(y
¥)
BUTTON
SERVICE MANUAL AP-MS50
a SENSOR .
Shey.

IV. PRINCIPAL PARTS LOCATION
OPEN/CLOSE SWITCH
sw90l
POWER PCB
PIO4IA5O0ID
SYSTEM CONTROL PCB
PIO4IASOIA
MAIN MOTOR PCB
SWITCH (A) PCB
PIO41A501B
ARM MOTOR M902
ARM MOTOR PCB
PIO4IASOIM
ARM POSITION
SENSOR (TR) PCB
PIO41ASOIF
ARM POSITION
SENSOR (LED) PCB
PIO41A501G
SERVICE MANUAL AP-MSO
MOVING BASE PCB
PIO4IASOIK
PLUNGER SL90]
TRACKING SENSOR PCB
PIO41A5OIL
Fig. 4-1
SENSOR PCB
PIO41C5020
POWER TRANSFORMER
T90l
APT -1041~ 70
APT-5-10
~ 20
- 30
- 40
- 50
>| [F] [o]
MOTOR M9OI
TRANSISTOR PCB
PIO4IASOIN
IC PCB
PIO4IA5OIP
SIZE SENSOR PCB
P1041D5030
SWITCH (B) PCB
PIO41AS5SOIC
Fig. 4-2

V. ADJUSTMENT
5-1. ORDINARY MECHANICAL
ADJUSTMENT
1) Ordinary Mechanical Adjustment such as Stylus
Pressure, Overhang and Tone Arm Height Adjustment
are not necessary since this model is equipped with
a Static-Balance Linear Tracking Tone Arm.
2) Stylus Pressure is pre-adjusted to 2.0 grams at the
factory, and re-adjustment is not necessary in normal
conditions.
5-2. ELEVATION AND POSITION
ADJUSTMENT
1) This adjustment is not necessary unless the Elevation
or Elevation prop is replaced or mis-adjusted.
2) Hold the Tone Arm with the Moving Base Block and
separate the Elevation Prop from the Tone Arm.
Then, bring the Elevation prop close to the Tone
Arm, and adjust the Elevation prop close to the Tone
Arm, and adjust the Elevation Prop with a flat type
screw-driver to the place where the position of the
notch (A) on the Elevation Prop coincides with the
projection part (B) on the Tone Arm as shown in Fig.
5-1.
MOVING BASE BLK
VR4 VR5 VR2 VR3
CH~I| CH-2 CH-1 CH-2
UP UP DOWN DOWN
Se
MUSIC INTERVAL
SENSOR SENSITIVITY
VRI
VRE
@ TRACKING
SENSOR SENS
ARM
OFF -SET
Fig. 5-1
SYSTEM CONTROL PCB PIO4IASOIA
SERVICE MANUAL AP-MS50
Fig. 5-2

5-3. ARM OFFSET VOLTAGE ADJUSTMENT
(Refer to Fig. 5-2)
1) Disconnect the connector PS on syscon PC BOARD.
2) Connect an oscilloscope or a digital voltmeter to
TP3, on syscon PC BOARD.
3) Turn the power “ON” and adjust VR6 so that the
voltage is OV +50mV.
5-4. TRACKING SENSOR SENSITIVITY
ADJUSTMENT (Refer to Fig. 5-2)
1) Place a 30cm record on the platter and put the power
“ON”.
2) Connect an oscilloscope or a digital voltmeter to the
TPS on syscon PC BOARD.
3) Press the “ARM-FF-KEY” (<4), shift the tone arm
and bring the arm down by pressing the “CUE” key.
At this stage, fix the arm with a cello-phanetape
to avoid setting down to its rest position.
4) Adjust VR1 so that the DC voltage is OV +0.1V.
5-5. MUSIC INTERVAL SENSOR SENSITIV-
ITY ADJUSTMENT (Refer to Fig. 5-2)
1) Place the 30cm record on the platter and put the-
power “ON”.
2) Connect an oscilloscope or a digital voltmeter to TP2
on syscon PC BOARD.
3) Press the ARM-FF key (<<), shift the tone arm
to the Lead-out area on the record.
4) Adjust VR4 so that the DC voltage at TP2 is 0.95+
0.05V when the tone arm is on the “UP” position.
5) As in the previous steps, adjust the VR5 so that the
DC voltage at TP1 is 0.95V +0.05V.
6) Bring “DOWN” the tone arm to Lead-out area on the
record. Adjust the VR2 so that the DC voltage at
TP2 is 2.2V +0.1V.
7) As same as in section 6, adjust the VR3 so that the
DC voltage at TP] is 2.2V +0.1V.
NOTE: When the sensitivity adjustments (VR2 to 5)
are difficult due to DC voltages are very low,
cut the pattern by removed solder as shown in
Fig. 5-2.
SERVICE MANUAL AP-M50
5-6. SPEED ADJUSTMENT (Refer to Fig. 5-3)
1) Set the test record (33-1/3rpm at 1000Hz) on the
platter.
2) Turn “ON” the power and set the speed selector to
33rpm.
3) Play back the test record (33-1/3rpm 1000Hz). The
playback output frequency is adjusted to 995Hz+
5Hz on the VR1i of MAIN MOTOR PC BOARD.
4) Set the speed selector to 45rpm. The playback
output frequency is adjusted to 1343Hz +5Hz on the
VR2.
Y A
POWER
\yoror
/
MAIN MOTOR TRANSFORMER
PCB
SYSTEM CONTROL PCB
VR2
(33rpm)
FRONT
Fig. 5-3 Bottom View
5-7, LEAD-IN POSITION ADJUSTMENT
(Refer to Fig. 5-4)
1) Set the 17cm record on the platter.
2) Turn “ON” the power and set the speed selector
to “AUTO”.
3) Press the “START/CUT” button. Confirm the posi-
tion where the stylus descends.
4) In case the lead-in position is incorrect, it can be
adjusted by turning the lead-in position adjuster in
Fig. 5-4.
Clockwise direction: The needle’s landing point is
distant from the spindle.
Counter-clockwise direction: The needle’s landing
point is near the spindle.
TOP
LEAD -IN
POSITION ADJ
Fig. 5-4 Rear View

VI_ PC BOARD TITLES AND IDENTIFICATION NUMBERS
PC BOARD TITLE PC BOARD NUMBER REMARKS
r SYSTEM CONTROL PC BOARD P1041A501A
SWITCH (A) PC BOARD P1041A501B
SWITCH (B) PC BOARD P1041A501C
POWER PC BOARD P1041A501D
ARM POSITION SENSOR (TR) PC BOARD P1041 A501F
ARM POSITION SENSOR (LED) PC BOARD P1041A501G
MOVING BASE PC BOARD P1041A501K
TRACKING SENSOR PC BOARD P1041 A501L
ARM MOTOR PC BOARD P1041A501M
TRANSISTOR PC BOARD P1041A501N
Ic PC BOARD P1041A501P
SIZE SENSOR PC BOARD P1041D5030
SENSOR PC BOARD P1041C5020
SPEED PC BOARD P1041 AS01E T] only
MAIN MOTOR PC BOARD 2
SERVICE MANUAL AP-MS0O

SECHON 26
=
TABLE
¢
OF
ONTENTS
: 16. FINAL ASSEMBLY BLOCK

HOW TO USE THIS PARTS LIST
1.
This
Parts
List
shows
those
parts
which
are
considered
necessary
for
repairs.
Other
parts,
such
as
resistors
and
capacitors,
are
shown
in
the
“Common
List
for
Service
Parts”
from
which
these
parts
should
be
selected
and
parts.
2.
The
Recommended
Spare
Parts
List
shows
those
parts
in
the
Parts
List
which
are
considered
particularly
important
for service.
3.
Parts
not
shown
in
the
Parts
List
and
“Common
List
for
Service
Parts”
will
not
in
principle
be
supplied.
4,
2.
How to read the parts list
a) Mechanism Block
HEAD BASE BLOCK
PART NO. DESCRIPTION
BH-T2023A320A HEAD BASE BLOCK GX-F66R
HP-H2206A010A HEAD R/P PR4-8FU C
ZS-477876 PAN20x03STL CMT
ZS-5 36488 BID20x08STL CMT
ZG-402895 CS ANGLE ADJUST SPRING
SP (Service Parts) Classification
A small “x” indicates the inability to
show that particular part in the Photo or
Illustration.
This number corresponds with the in-
dividual parts index number in that figure
This number corresponds with the Figure
Number
b) P.C Board Block
6. SYS. CON. P C BOARD BLOCK
REF,
NO.
6-1
6-IC1
6-IC2
6-IC3
6-IC4
6-TR1to4
6-TR5to28
6-D1
6-D2to4
6-D5to10
6-X1
PART NO. DESCRIPTION
BA-T2034A070A PC SYS CON BLK GX-F44R
EI-324536 IC HD14049BP
EI-336801 IC MB8841-564M
EI-331661 IC SN7405N
EI-336725 IC MS54527P
ET-200985 TR 2SC2603 F,G
ET-554657 TR 2SA733A P,Q
ED-318292 D SILICON H 182473T-77 T26
ED-308952 D GERMA V 1K34A-LR F07
ED-318292 D SILICON H 182473T-77 T26
EI-318384 OSC X’TAL NC-18C
3.579545MHZ
SP (Service Parts) Classification
These reference symbols correspond with
component symbols in the Schematic
Diagrams.
5.
The
kind
of
part
and
its
installation
position
can
both
be
determined
by
the
Part
Number.
To
determine
where
a
part
number
is
listed,
utilize
the
Parts
Index
at
the
end
of
the
Parts
List.
It
is
necessary
first
of
all
to
find
the
Part
Number.
This
can
be
accomplished
by
using
the
Reference
Number
listed
at
the
right
of
the
part
number
in
the
Parts
12
Index.
PARTS LIST AP-MS50

RECOMMENDED SPARE PARTS
Because, if the parts listed below are on hand, almost
any repair can be accomplished, we suggest that you
stock these Recommended Spare Parts Items.
REF.
NO. PART NO. DESCRIPTION
1 N BM-P1041A030A /A\ MOTOR MAIN BLK AP-MS50-C (U)
[U,C,A,E,V,B,S]
2.N BM-P1041A030B A\ MOTOR MAIN BLK AP-MS50-C (J)
{J]
3.N BM-349296 MOTOR MMN-5C2RG
4.N BT-354976 A\ TRANS POWER APT-1041-70 [U]
5 BT-337905 A\ TRANS POWER APT-5-10 [J]
6 BT-347082 A\ TRANS POWER APT-5-20 [A]
7 BT-337906 A\ TRANS POWER APT-5-30 [C]
8 BT-337907 A\ TRANS PWOER APT-5-40 [E,V]
9 BT-337908 A\ TRANS POWER APT-5-50 [B,S]
10 ED-349756 D LED SLR902A INFRARED
11 ED-344280 D SILICON H GMA-01-FY2 F05
12 ED-347123 D SILICON H GMA-01-FY1 F05
13. ED-306724 D SILICON S5277B 100/1.0A
14 ED-322238 D SILICON 1B4B41 100/1.0A
15 ED-338125 D ZENER H 05211 X
16 N ED-357646 D ZENER H 0523.9 Z
17. EF-300601 A FUSE FST3100 T 250V 0.50A
{E,V,B,S]
18 EI-357879 IC LA5S512
19 N_ EI-355009 IC LA6458DF
20 -EI-336761 IC LA6458S
21 — EI-337903 IC LC4016B
22 N EI-358499 IC P1041B-566
23 © -El-344461 IC TA75393S
24 ~~ EI-315243 CI TA78005AP
25. EI-337017 OSC CE CSB800A 0.800000MHz
26 EM-351174 IND LE SL-4179
27 EP-351177 SOLENOID 0531PLT 12V
28 ER-307565 A R FUSE ERD2FC S10 1/4W 6R8J
29: ES-337898 A\ SW SLIDE 00120163 01-2 [U]
30 ES-336814 SW LEAF MSW-1150NBK 01-1 NO
31 ES-349276 SW SLIDE 00230873 2-02-03S
32 ES-352307 SW SLIDE 00230904 2-02-03S
33 ES-349367 SW TACT SKHHAB044A
34 ET-344472 PHOTO SENSOR 0N1128AK
35 ET-349755 PHOTO SENSOR SPS103
36 ET-308867 TR 2SA1015 0,Y
37. ET-347738 TR 2SA1282A E,F
38 ET-322598 TR 2SB632K E,F
39 — ET-330225 TR 2SC1815 BL
40 ET-349272 TR 2S8C3242A E,F
41 ET-338565 TR 2SD1302 R,S
42 ET-355153 TR 2SD1406 O,Y
43 EV-336853 R S-FIX H KVSF807U 3P 103
44 EV-336854 R S-FIX H KVSF807U 3P 104
45 EV-336847 R S-FIX H KVSF807U 3P 502
46 N EV-354979 R S-FIX H V8EK-PV 3P 103
47 N EV-355120 R S-FIX H V8EK-PV 3P 104
48 N MB-355119 BELT EP
49 MB-344538 BELT 1.2XD26.0 CRHS60
50 MI-349224 GEAR TRACKING
51 MI-B349223 GEAR WARM PART
“NOTE” N: New Parts
SYMBOL FOR DESTINATION
[A] : AAL (USA)
[B] : UK (England)
[C] : CSA (Canada)
[E] : CEE (Europe)
[J] : JPN (Japan)
[S] : SAA (Australia)
[U] : U/T (Universal Area)
[V] : WDE (West Germany)
PARTS LIST AP-M50
13

1. PC BOARD BLOCK
REF.
NO.
1-1A
1-1B
1-1C
1-1D
1-1E
1-1F
1-1G
1-1H
1-11
PART NO.
BA-P1041A020A
BA-P1041A020B
BA-P1041A020C
BA-P1041A020D
BA-P1041A020]
BA-P1041A020E
BA-P1041A020F
BA-P1041A020G
BA-P1041A020H
BA-P1041A020K
NOTE:
PC SYSCON BLK consists of following PC BOARDS.
SYSTEM CONTROL PC BOARD
SWITCH (A) PC BOARD
SWITCH (B) PC BOARD
IC PC BOARD
DESCRIPTION
PC SYSCON BLK AP-M50-C (U) [U]
PC SYSCON BLK AP-M50-C (C) [C]
PC SYSCON BLK AP-MS0-C (A) [A]
PC SYSCON BLK AP-MS50-C (E)
[E,V,B,S]
PC SYSCON BLK AP-M50-C (J) [J]
PC SYSCON BLK AP-MS50-CB (U) [U]
PC SYSCON BLK AP-M50-CB (C) [C]
PC SYSCON BLK AP-MS50-CB (A) [A]
PC SYSCON BLK AP-M50-CB(E)
[E,V,B,S]
PC SYSCON BLK AP-MS50-CB (J) [J]
ARM POSITION SENSOR (TR) PC BOARD
ARM POSITION SENSOR (LED) PC BOARD
TRACKING SENSOR PC BOARD
ARM MOTOR PC BOARD
TRANSISTOR PC BOARD
SPEED PC BOARD (J ONLY)
SENSOR PC BOARD
POWER PC BOARD
PARTS LIST AP-MSO
2. SYSTEM CONTROL PC BOARD
REF.
NO.
2-IC1
2-IC2
2-IC3
2-IC4
2-TR1
2-TR2
2-TR3
2-TR4,5
2-TR6 to 10
2-TRI1
2-TR12,13
2-TR14,15
2-TR16
2-TRI7
2-TR18
2-TR19
2-TR20
2-TR21
2-TR22
2-TR23
2-TR510
2-D1 to 4
2-D5
2-D6,7
2-D8,9
2-D10,11
2-D12
2-D14
2-D15
2-SW1
2-SW1B
2-SW2
2-SW2B
2-VR1
2-VR2,3
2-VR4,5
2-VR6
2-L1
2-XK1
2-IB1
2-FR1
2-R82
2-R119
2-C30,31
PART NO.
EI-336761
EI-355009
EI-344461
EI-358499
ET-308867
ET-349272
ET-347738
ET-308867
ET-338565
ET-330225
ET-338565
ET-330225
ET-347738
ET-349272
ET-308867
ET-330225
ET-338565
ET-349272
ET-330225
ET-322598
ET-330225
ED-347123
ED-357646
ED-347123
ED-306724
ED-338125
ED-322238
ED-347123
ED-344280
ES-352307
ES-349276
ES-352307
ES-349276
EV-354979
EV-336854
EV-355120
EV-336853
EO-345922
EI-337017
EH-3549 68
ER-307565
ER-320538
ER-333013
EC-336875
DESCRIPTION
A IC LA6458S
IC LA6458DF
IC TA75393S
IC P1041B-566
A.TR 2SA1015 O,Y,GR
TR 28C3242A E,F
TR 2SA1282A E,F
TR 2SA1015 0,Y,GR
TR 2SD1302 R,S
TR 2S8C1815 BL
TR 2SD1302 R,S
TR 28C1815 BL
TR 2SA1282A E,F
TR 28C3242A E,F
TR 2SA1015 O,Y,GR
TR 2SC1815 BL
TR 2SD1302 R,S [U,C,A,E,V,B,S]
TR 28C3242A E,F
TR 2S8C1815 BL
AX TR 2S8B632K E,F
TR 2S8C1815 BL
D SILICON H GMAO1-FY1 F05
D ZENER H 0523.9 Z
D SILICON H GMAO1-FY1 F05
D SILICON $5277B 100/1.0A [E,V}
A D ZENER H 05211 X
A\ D SILICON 1B4B41 100/1.0A
D SILICON H GMAO1-FY1 F05
D SILICON H GMA-01-FY2 F05
SW SLIDE 00230904 2-02-03S
SW SLIDE 00230873 2-02-03S -
[BLACK]
SW SLIDE 00230904 2-02-03S
SW SLIDE 00230873 2-02-03S
[BLACK]
R S-FIX H V8EK-PV 3P 103
R S-FIX H KVSF807U 3P 104
R S-FIX H V8EK-PV 3P 104
R S-FIX H KVSF807U 3P 103
COIL FIX 1 LALO3KH 470K
OSC CE CSB800A 0.800000MHz
COMP R EXB-P89 223K
A\ R FUSE ERD2FC $10 1/4W 6R8I
A ROMFH S15 FS tw 3913
A ROMFH SNP FS 2W 3R9J
C EC V CUT SR 102M 25DC
3. SWITCH (A) PC BOARD
REF.
NO.
3-IND1
3-SW101
to 104
3-1
PART NO.
EM-351174
ES-349 367
SZ-354921
DESCRIPTION
IND LE SL-4179
SW TACT SKHHABO44A
CHASSIS OPERATION (B)
4. SWITCH (B) PC BOARD
REF.
NO.
4-SW201
to 209
4-1
PART NO.
ES-349 367
SZ-B354922
DESCRIPTION
SW TACT SKHHAB044A
CHASSIS OPERATION (A) PART

5, IC PC BOARD . 14. POWER PC BOARD
Nee PART NO. DESCRIPTION pone PART NO. DESCRIPTION
§-1C201 E1-315243 IC TA7800SAP 14-SW301 _ES-337898 A\ SW SLIDE 00120163 01-2 [U]
6. ARM POSITION SENSOR (TR) PC BOARD
REF.
NO. PART NO. DESCRIPTION
6-PH1,2 ET-349755 PHOTO SENSOR SPS103
6-1 MZ-B344535 HOLDER POSITION SENSOR PART
7. ARM POSITION SENSOR (LED) PC BOARD
ek PART NO. DESCRIPTION
7-D101 ED-349756 D LED SLR902A INFRARED
8. TRACKING SENSOR PC BOARD
REF.
NO. PART NO. DESCRIPTION
8-PH101 ET-344472 PHOTO SENSOR 0ON1128AK
9. ARM MOTOR PC BOARD
SS. PART NO, DESCRIPTION
9-C201 EC-341878 CEC V FOS NP 04W 100W 25.0DC
10. TRANSISTOR PC BOARD
REF.
NO. PART NO, DESCRIPTION
10-TR201 ET-355153 TR 28D1406 O,Y
11. MAIN MOTOR PC BOARD
Bere PART NO. DESCRIPTION
11-IC EI-357879 Ic LAS512
12. SPEED PC BOARD (J ONLY)
ra PART NO. DESCRIPTION
12-IC101 EI-337903 IC LC4016B
12-TR101 ET-330225 TR 2SC1815 BL
12-VR101 EV-336847 RS-FIX H KVSF807U 3P 502
12-VR102. EV-336853 R S-FIX H KVSF807U 3P 103
12-VR103 EV-336853 R S-FIX H KVSF807U 3P 103
12-VR104 EV-336853 R S-FIX H KVSF807U 3P 103
13. SENSOR PC BOARD
a PART NO. DESCRIPTION
13-TR501 ET-325501 TR 28A10150, Y
13-TR502
to 504 ET-330225 TR2SC1815 BL
13-TRS505 ET-325501 TR 2SA1015 0,Y
PARTS LIST AP-M50 15

ASSEMBLY BLOCK
Gye
SZ *
mm
\}
4 >
PARTS LIST AP-M50
16

15. ASSEMBLY BLOCK
oe PART NO. DESCRIPTION
15-1 TP-P1041A130A LIFTER BLK AP-MS0-C
15-2 ZW-288764 PW51X078X020PBR
15-3 ZG-354975 SP PUSH PLUNGER
1-54A TP-355022 TONE ARM W/C AP-M50
DOUBLE SPEED [J]
15-4B TP-354989 TONE ARM W/C AP-M50
[U,C,A,E,V,B,S]
15-5 MS-35 4910 GUIDE RAIL
15-6 ZW-270101 RING E300SUP CMT
15-7 MR-308836 PULLEY
15-8 MB-344538 BELT 1.2X026.0C RHS60
15-9 ZG-357752 SP T5-04.0/0.40-16.0 T5-111
15-10 EZ-349232 STRING WIRE
15-11 TP-P1041A110A HINGE BLK AP-MS50-C
15-12 MI-B349223. GEAR WARM PART
15-13 ZW-659755 PW43X110X050NYL
15-14 MI-349224 GEAR TRACKING
15-15 MZ-B344535 | HOLDER POSITION SENSOR
PART
15-16 BC-B349261D DUST COVER PART AP-M50-B
15-17 EZ-349251 BUSH COVER
15-18 ZS8-349252 SCREW
15-19 MB-343057 COVER CUSHION
15-SL901 EP-351177 SOLENOID 0531PLT 12V
15-M902 BM-349296 MOTOR MMN-SC2RG
6-PH1,2 ET-349755 PHOTO SENSOR SPS103
7-D101 ED-349756 D LED SLR902A INFRARED
8-PH101 ET-344472 PHOTO SENSOR 0N1128AK
NOTE:
Parts listed in 1 to PHIO1 on the exploded view
and list are normaly stocked for replacement purpose.
The remaining parts shown in this manual are not
normaly stocked, because they are seldom requird for
routine service.
PARTS LIST AP-MS0
17

FINAL ASSEMBLY BLOCK
Seen ome
i
PARTS LIST AP-M50
18