Sanyo ES-P7 User manual

SERVICE MANUAL
Stereo Headphones
ES-P7 ( GENERAL )
Cassette Player
Specifications
Power Source
Ee
tei
i
ics
ace
neler
al
4.2V
PIG
DEST
Y
.cccvencesnsnvnunevwsres
ceuaxguacowmmesinee.é..-..
KF-A4200
OUTBUD
PRWEP
gj.
cnccnnemncnrarennnevnuruvarvaeessaevereys
3.5mW
x
2
(Max.)
Als
PEWS
I
stn
soninnmannanmereensiinnstvsigsineasninnatiee
esi
bec
ooo,
oc.
1.5V
Current
Consumption
(at
Vol.
Min.)
PRAY
OAGK
MIOGE
sei
cicsnsneeciususeonitvosaigieenssiiiesinnsitec.coccsc.
220mA
Fast
Forward/Rewind
mode
........ccccccccccceeceeee
380mA
TAG
SBSG
seit
ceccssnicsciesimndniruinwonineugeuane:
haamrugemaue
1-7/8ips.
£3%
Fast
Forward/Rewind
mode
................
300sec.
(with
C-60)
Torque
PAYS
RCW
seiasennsameninsueisiennnvit-deaicuorqeseunesweneine._
cc:
18
~
36g-cm
Fast
Forward/Rewind
....................
More
than
55g-cm
MIT
SOPRTTRGF
osc
ocinsanncracunninnananievnnsrvnupgvenrememsmuces
0.6%
(WRMS)
Specifications
and
design
are
subject
to
change
without
notice.
PRODUCT CODE No.
142 525 04 (Black)
142 525 05 (Gray)
142 525 06 (Green)
142 525 07 (Blue)
Frequency
Response
(P/B
Dolby
OFF)
.......
63Hz
~
10,000Hz
BRSS
Switch
PRED
ees
cas
ipa
pcincaebenaiacs
eames
ec
ca
+8+4dB
ee,
ite
ereserre
uoaersecarcnomndintoneleneenemda
oad
foo
52
+16+6dB
Signal
to
Noise
Ratio
(with
Fe2O3)
.......0.0......
More
than
43dB
Crosstalk
(with
Fe203)
TEAGI
8
THEE
ccca:nnsnnniicincesennantcaugucsnamiatiine
d...
More
than
50dB
Channel
Separation
(with
Fe2Os3)
........00.......
More
than
25dB
Hum
&
Noise
(at
Vol.
Min.)
oo.
.cccccccccececccccccccccccceccceee.
—71dBs
Terminal
Impedance
PHS
BOTS
sanenven:ssirarneisivatstervorroneenese
ie
oso.
oc
og
8
~
1000
Dimensions
(Max.)
.............000..
111.3(W)
x
96.7(H)
x
18(D)mm
Weight
(with
batteries)
oo...
ccccccccececcceccccccccccceececees,
190g
Dolby
is
a
registed
trademark
of
Dolby
Laboratories
Licensing
Corporation.
REFERENCE No. WM-570603

DISASSEMBLY
INSTRUCTIONS
GENERAL REMARKS
or
a
cloth
on
the
workbench
to
avoid
scratches
and
grease stains.
-@
Donotuse
a
material
which
is
likely
to
cause
static
elec-
tricity
because
transistors
and
ICs
may
be
easily
dam-
aged
by
it.
e
Reassembie
the
unit,
noting
the
kinds
of
screws,
the
sol-
dering
and
arrangement
of
the
leads.
Refer
to
“Circuit
e.
Diagram
and
Exploded
Views”
for
correct
assembly.
e
Before
disassembling
the
unit,
take
out
the
cassette
tape
and
the
batteries.
|
|
e Reassemblie in reverse order.
CABINET
BOTTOM
REMOVAL
4.
Remove
the
five
screws
(1~5)
fastening
the
Cabinet
Bot-
tom.
2.
Detach
the
Cabinet
Bottom
by
lifting
in
the
direction
of
the
oO
arrow.
Cabinet Battom
CASSETTE
COMPARTMENT
LID
REMOVAL
1.
Press
the
button
to
open
the
Cassette
Compartment
lid.
2.
Remove
the
three
screws
(6~8)
fastening
the
Cassette
Compartment
lid
and
detach
the
Cassette
Compartment
lid.
:
Cassette
Compartment Lid
P.C.BOARD REMOVAL
e
Sefore
disassembling
the
unit,
spread
a
soft
rubber
mat
aI
Remove
the
Cabinet
Bottom
and
unsolder
the
follows
leads
from
the
P.C.Board.
@ Motor leads
e@
Plunger
leads
(Yellow,
Blue)
@
Play
Head
FPC
Assy
leads
e
Mode
Switch
FPC
Assy
leads
Remove
the
three
screws
(9~11)
and
detach
the
P.C.Board
by
lifting
with
caution
not
to
damage
the
lead
wires.
Bye
faoOles
Ws
cel
|
CASSETTE
MECHANISM
REMOVAL
1.
Remove
the
P.C.Board
and
Cassette
Compartment
lid.
Then
pull
the
frame
in
the
“A”
marked
direction
of
the
arrow
and
lift
in
the
“B”
marked
direction
of
the
arrow.
Remove
the
frame
from
the
mechanism.

ADJUSTMENT PROCEDURES
GENERAL REMARKS
e Before adjusting the mechanism. of this unit, | wipe the
tape contacting surfaces clean as well as contacting sur-
faces of the driving parts with a cotton swab or a soft cloth
soaked in alcohol. Trouble ie occur because of oil and
grease Stains.
@ Handle the belt carefully the béedlise grease easily at-
taches to it. Then check the used rubber parts. Ifthe rub-
ber has deteriorated or is ‘scratched, replace the pa —
an This model! features the Auto Reverse Mechanism. Then
the tape transport direction is distinguished as follows:
+. FORWARD DIRECTION:
. The Tape is wound counter-clockwise.
4 REVERSE DIRECTION:
_ The Tape is wound clockwise. ,
When performing the adjustment.while playing back the
®
with
new
one.
7
|
i
‘test
tape,
set
the
cg
al
to
the
FORWARD
DIREC-
ee
TION.
EQUIPMENT REQUIRED
@
Frequency
Counter
.
NOTE:
@ Dummy Load (169) © es
e Test Tapes | eo a ss
t+ 3kHz test tape gee 2 TEAC. MTT)
@ Alignment Tool .
ang
ADJUSTMENT PROCEDURE
Measuring
Adjustment Dummy
Item Load
-. Instrument
Tape Speed Headphones
Frequency Counter
Potentiometer for Tape Speed Adjustment _
Test tape. -|
TEAC
MTT-11
the
Before the adjustments, set ete control and switch as follows:
Dolby NR Switch: Nd ssidis valance uutes Sdcc ee wana scae Sisecneuaceaneeans OFF
BRSS Switch ..0:.::. sata ues aedresteuebe van vcotsneuacsvumuersebetabes OFF
Volume Contfol - ee duel Soran ud uaueooctuaens eaaeiat As desired
. Supply the regulated DC. 1.5V power to the Ext. Power
~ Jack for the adjustment. ~..
Measuring
Value
- Adjustment |
3,000HZ +3%
— Cabinet Bottom

CABINET EXPLODED VIEW

‘CABINET PARTS LIST
pe Part No. Description Q’ty
PACKAGE
620 2096377 Outer Carton (Black) 1
620 2096384 Outer Carton (Gray) 1
620 209 6391 Outer Carton (Green) 1
620 2096407 Outer Carton (Blue) 1
620 209 6414 ~=Inner Carton 1
620 198 3050 Poly Cover 110X160 1
620 209 5660 Poly Cover 1
620 208 6026 =6 Pad Styrofoam 1
620 208 6033 Pad,Top 1
620 209 7381 Label,Caution 1
620 1527506 Serial No. Sheet 3
620 1529722 Label Color (Black) 1
620 1529715 Label Color GR (Gray) 1
620 152 9760 Label Color GN (Green) 1
620 1529753 Label Color BL (Blue) 1
ACCESSORIES vo +
620 021 4834 Plug Adaptor Assy |
620 209 8968 Assy,Remocon,ES-P7 1
620 209 8975 Headphone,i6 1
620 208 2547 ~=— Battery, Recharge, KF-A1200 1
A\ 620 208 2349 AC Charger D1-30CH1200 1
620 210 1583 = Instruction Manual 1
CABINET = :
620 208 6729 Adhesive Sheet 1
620 209 7374 Adhesive Sheet 1
620 208 1519 Terminal 4
6201159165 Adhesive Sheet 1
620 116 2851 Adhesive Sheet , 1
1 620 209.6285 Assy,Cabinet,Bottom (Black) :
1 620 2096308 Assy,Cabinet,Bottom (Gray) 1
1 620 2096353 Assy,Cabinet,Bottom (Green) 1
1 620 2096360 Assy,Cabinet,Botiom (Blue) 1
2 620 207 0674 #8 Assy,Holder,Jack 1
3 620 207 0628 ~=Assy,Lever,Lid 1
4 620 205 8696 ~=Lid,Battery :
5 620 2096209 + Lid,Cassette (Black) 1
5 620 2096216 Lid,Cassette (Gray) 1
5 620 2086223 Lid,Cassette (Green) 1
5 620 209 6230 ~— Lid, Cassette (Blue) 1
6 620.205.8757 Knob,Slide,Switch 2
7 620 205:8764. Knob,Slide,Mode 1
8 620 2057583 Frame — 1
9 620 2109138 Cushion 1
10 620 1229134 Screw:'+PMS M1.4X2.5 1
11 620 123 1205 Screw. 1
12 620 207 0681 Assy, Holder,Anode 1
13 620 205 8740 = Button, Eject (Biack/Gray) 1
13 620 208 6941 Button,Eject (Green) 1
13 620 208 6965 Button,Eject (Blue) 1
14 620 205 8726 Holder,Cathode 1
15 620 206 6455 Sheet,Battery 1
16 620 206 7438 8=©Spring,Tens,Eject 1
17 620 2100470 Sheet a.
18 620 124 6087 Cushion 1
19 6202107035 Sheet 1
20 620 2101200 Sheet 1
ti Part No. Description Q’ty
21 620 206 9173 Assy,PCB-W,Amplifier 1
22 620 208 1526 =6Assy,FPC,Jack 1
23 620 208 1533 =Assy,FPC,SW 1
31 412025 4701 SCR PAN PCS 1.4X3.5 Z
32 412 036 9603 SPECIAL SCREW (Black/Gray/Green) 1
32 412 037.8902 SPECIAL SCREW (Blue) | 1
33 412 0369702 SPECIAL SCREW (Black/Gray/Green) 2
33 412 037 9008 SPECIAL SCREW (Blue) 2
34 412 037 2207) =SPECIAL SCREW (Black/Gray/Green) 4
34 4120379107 SPECIAL SCREW (Blue) 4
35 412 037 2207 SPECIAL SCREW 1
36 412 037 2306 SPECIAL SCREW 1
37 412 037 2405 SPECIAL SCREW 1
38 4110997908 SCR PAN PCS 1.4X2.5 (Black/Gray/Green) 1
38 411017 7904 SCR PAN PCS 1.4X2.5 (Blue) 1
39 411 086 1407 WASHER SPR 1.7 1
NOTES:
1. Parts order must contain Model Numbér, Part Number and De-
: scription.
2. Ordering evenly of s screws and resistors must be multiple of 10
pcs.
PRODUCT SAFETY NOTICE
Each precaution in this manua! should be followed during servic-
ing. Components identified with the IEC symbol A\ in the parts list
and the schematic diagram designate components in which safety
can be of special significance. When replacing a component iden-
tified with A\, use only the replacement parts designated, or parts
with the same ratings of resistance, wattage or voltage that are
designated in the parts list in this manual. Leakage-current or re-
sistance measurements must be made to determine that exposed
parts are acceptably insulated from the supply circuit before re-
turning the product to the customer.

MECHANISM EXPLODED VIEW

- Description
MECHANISM PARTS LIST
Q —
“<
Ret. Part No.
No.
MECHANISM
620 152 7506
1 620 206 8312
2 620 207 0452
3 620 205 1901
4 620 205 1925
5 620 205 1871
6 620 205 1864
7 620 206 7766
8 620 205 1956
9 620 205 1963
10 620 206 8824
11 620.205 1888
12 620 205 1895 ~
13 620 205 1932
14 620.205 1147
15 620 205 1154
16 620 205 1109
17 6202051116
18 620 205 1178
19 620 205 0867
20 620 205 0874 —
21 620 205 0881
22 620 205 0928
23 620 205 0935
24 626 205 0942
25 620 205 0959
26 620 205 1031
27 620 206 7100
28 620 205 1079
29 620 205 1215
30 620 205 1420 .
31 620 205 0768
32 620 205 0799
33 620:205.0812 ~—
34 620 205 0829 -
35 620 205 0843
36 620 205 1482 >
37 620 205 1376
38 620 205 1314 —
39 620 205 1321
40 620 205-1338
At 620 205.1345 —
| a2 620 205.1284 ©
43 620205 1291
44 620 205 1307
45 620 207 0469
46 620 125 1807
47 620 139 1572 —
61 412 025 8808 .
62 412 025 7405 ~
63 412 025 6903
64 412 025 6101
65 412 037 7806 .
66 412 036 9207
67 412 036 9306
68 412 037 8100 |
69 412 037 9602 | |
70 412 038 3906 -
71 412 020 3105 -
72 412 020 4904
73 412 023 4901 ~
74 412 026 3000
75 412 087 1200
76 412 087 1309
77 412 037 1408 ©
78 412 037 1507
79 412 038 0608 —
80 412 038 4309
NOTES:
' Serial No. Sheet -
Assy,Head,Play,4T
Assy,Motor,1.5V,0.3W
- Assy,Chassis =.
Assy,Chassis,Sub
‘Assy,Holder,Head
-Assy,Gear,Friction
Assy,Gear,Fast,FWD
Assy,Flywheel,FWD
-Assy,Flywheel,RVS
-Assy,Pulley,Gear -
-Assy,Arm,Pinch,FWD
Assy,Arm,Pinch,RVS
~ Assy,Slide,Reverse
Hinge,Right: — :
Hinge,Left —
- Support,Flywheel —
Suppor,Flywheel
—Holder,Plunger
Gear,ldier,Pulley
Gear,Reduction,Assist —
‘Gear, ldler,Friction
Gear, Idier,Take,UP
Gear,Link,RVS
- Gear,idler,FWD: -
Gear,idler,RVS ©
Gear,Assist -
Reel
Pulley, idler !
Disc
Belt, Square,Drive
'Arm,Head
* Arm, Take,UP.
Lever,Cance! ~— :
‘Lever,Fast,FWD —
Lever,Trigger >...
Rotler,Arm,Pinch.
Spring,Comp,Reel
Spring,Tors,Pinch,FWD
Spring,Tors,Pinch,RVS
Spring, Tors;Cancel
Spring.Tors,Trigger
- Spring,Plate;Lid,Right ~
Spring,Plate,Lid,Left —
Spring,Plate;Cassette
“Magnetic Coil;Plunger
. Washer,M1.25X3:0X0.25.
Spring Cabinet Front
SCR FLT PCS 1.4X1.4
SCR PAN PCS 1.4X1.4
~ SCR PAN PCS 1.4X2
- SCR PAN PCS 1.:4X4
“SCR PAN PCS 1.4X2.5 |
.. SPECIAL SCREW |
- SPECIAL SCREW -
SCR PAN PCS 1.4X1.2
SPECIAL SCREW —
SCR PAN PCS 1.4X3.3
SPECIAL WASHER
SPECIAL WASHER
SPECIAL WASHER
SPECIAL WASHER
| SPECIAL WASHER
SPECIAL WASHER
SPECIAL WASHER
SPECIAL WASHER
SPECIAL WASHER
SPECIAL WASHER
tor = £0909 DW POP M AH MO AR A A eS
1. Parts order must contain Model Number, Part Number and De-
scription.
2. Ordering quantity of screws and resistors must be multiple of 10
pcs.

P.C.BOARD PARTS LIST
Ref.
J301 6202077949 Jack,H/P,5P (HEADPHONE JACK)
No Part No. Description O’ty
ASSY,PCB-W,AMPLIFIER
21 620 2069173 Assy,PCB-W,Amplifier 1
620 205 8818 Terminal,Cathode 1
620 205 8702 Hotder,Switch 1
620 205 7743 Switch,Leaf (TAPE CR) 1
CF401 620 209 6728 Resonator,Xtal,75kHz 1
1
1
1
$401 620 208 0918 Switch,Slide,1P-3T (F/R SW).
R440 401 162 1803 MT-FILM 4.7K JP 1/8W
620 206 9180 Assy,PCB-W,Chip 1
P401 620 208 0864 Potentiometer,1KB 1
T401 620 209 9552 Ss Trans,OSC,D/D 1
C101 409 228 5307 IC TA7795FN (ER) 1
IC 102 409 228 5208 IC TA7793FN (ER) 1
IC103 409 228 5406 iC TA8157FN (ER) 1
10104 410 110 1406 IC M34210M2-126GP 1
1C105 409 227 0501 IC CXA1405AM-T3 1
1C106 409 205 5009 iC LB1673M-TP-T1 1
IC107 409 228 5505 IC TA8161F (ER) 1
D301 407 061 6802 DIODE MA704 1
D404 407 008 5400 DIODE MA151WK-TW 1
HS401 407 104 2709 SENSOR SHS230-60-TL 1
Q301 405 102 6200 TR DTC114-YU-T107 1
Q302 405 082 3404. TR 2SC4081-BR-T107 1
Q303 405 082 3404 TR 28SC4081-BR-1T107 1
Q304 405 082 3404 TR 2SC4081-BR-T107 1
Q305 405 082 3404 TR 2SC4081-BR-T107 1
Q306 405 008 7707 TR 2SB815-B7-TA 1
Q401 405 021 2406 TR 2SD1048-X7-TA 1
Q402 406 008 8800 ~=9°6TR 2SA1576-FR-T107 j
Q403 406 008 8800 TR 2SA1576-FR-T107 1
Q404 405 008 7707 TR 2SB815-B7-TA 1
Q405 405 082 3404 TR 2SC4081-BR-T107 1
Q406 406 008 8800 ~=TR 2SA1576-FR-T107 1
Q407 405 082 3404 TR 25C4081-BR-T107 1
. Q408 405 082 3404 TR 2SC4081-BR-T107 1
Q409 405 102 6200 TR DTC114-YU-T107 1
Q410 405 008 7707 TR 2SB815-B7-TA 1
Q411 405 082 3404 TR 2SC4081-BR-T107 1
Q412 405 082 3404. TR 2SC4081-BR-T107 1
Q413 405 082 3404 TR 2SC4081-BR-T107 1
Q414 405 082 3404 TR 2SC4081-BR-T107 1
C101 403 113 3805 CERAMIC 1000P K 50V 1
C102 403 113 3805 CERAMIC 1000P KK 50V 1
C103 404 035 1405 #TA-SOLID 220 M 4V 1
C104 403 213 4108 CERAMIC 0.015U K 16V 1
C105 403 155 1807 CERAMIC 0.01U K 25V 1
C106 403 068 0409 CERAMIC 0.1U Z 25V 1
C107 403 207 0307 CERAMIC 1 Z 16V 1
C108 403 155 2200 CERAMIC 3300P K 50V 1
C109 403 155 2002 CERAMIC 8200P K 25V 1
C110 403 1447209 TA-SOLID 1U M = 16V 4
C114 403 155 1807 CERAMIC 0.01U K 25V 1
C112 403 147 8302 TA-SOLID 0.47U M 35V 1
C113 403 207 0307 CERAMIC 1UZ 16V 1
C114 403 213 4009 CERAMIC 0.012U K 16V 1
C115 403 207 0307 CERAMIC 1U Z 16V 1
C116 403 144 7209 TA-SOLID 1U M_= 16V 1
C117 403 113 3805 CERAMIC 1000P K 50V 1
C201 403 113 3805 CERAMIC 1OOOP K 50V 1
C202 403 113 3805 CERAMIC 1000P K 50V 1
C203 404 035 1405 TA-SOLID 22U M 4V 1
C204 403 213 4108 CERAMIC 0.015U K 16V 1
C205 403 155 1807 CERAMIC 0.01U K 25V 1
C206 403 068 0409 CERAMIC 0.1U Z 25V 1
C207 403 207 0307 CERAMIC 1U Z i6V 1
C208 A403 155 2200 CERAMIC 3300P K 50V 1
C209 403 155 2002 CERAMIG 8200P K 25V 1
C210 403 1447209 TA-SOLID 10 M = 16V 1
C211 403 155 1807 CERAMIC 0.01U K 25V 1
C212 403 147 8302 TA-SOLID 0.470 M 35V 1
C213 403 207 0307 CERAMIC 1U Z 16V 1
C214 403 213 4009 CERAMIC 0.012U K i6V 1
C215 403 207 0307 CERAMIC 1U Z 16V 1
C216 403 1447209 TA-SOLID 1M 16V 1
C217 403 113 3805 CERAMIC 1000P K 50V 1
C301 403 155 2002 CERAMIC 8200P K 25V 1
C302 403 1440705 TA-SOLID 10U -M = 4V 1
ee Part No. Description ty
C303 4040351405 TA-SOLID 22U M 4V 1
C304 404035 1405 TA-SOLID 22U M 4V 1
C305 403 089 6206 TA-SOLID 47U M 4V 1
C306 403 090 3201 TA-SOLID 1U M = 10V 1
C307 403 1447209 TA-SOLID i¥ M = 16V 1
C308 403 089 9009 TA-SOLID 2.20 M 6.3V 1
C309 403 207 0505 CERAMIC 0.47U Z 16V 1
C310 403 089 6206 TA-SOLID— 4.7U M_ 4V 1
C311 403 152 2005 TA-SOLID 3.30 M 4V 1
C312 403 155 1807 CERAMIC 0.010 K 25V 1
C313 403 1440705 TA-SOLID 10U M 4V 1
C314 404035 1405 TA-SOLID 22) M 4V 1
C315 403 155 1807 CERAMIC 0.010 K 25V 1
C316 403 068 0409 +=CERAMIC . O.1U Z 25V 1
C317 403 068 0409 CERAMIC 0.10 Z 25V 1
C318 403 068 0409 CERAMIC 0.1U Z 25V 1
C319 403 155 1807 CERAMIC 0.01U K 25V 1
C320 403 147 8203 TA-SOLID 4.7U M = 4V 1
C321 403 213 4207 CERAMIC 0.018U K 16V 1
C401 403 157 8309 CERAMIC 0.1U Z 16V 1
C402 403 207 0307 CERAMIC 10 Z 16V 1
C403 403 019 2209 . CERAMIC 24P J 50V 1
C404 403 019 2209 CERAMIC 24P J 50V 1
C405 403 207 0505 CERAMIC 0.47U Z 16V 1
C406 403 167 2403 TA-SOLID 22U M 4V 1
C407 403 207 0505 CERAMIC 0.470 Z 16V 1
C408 403 068 0409 §=CERAMIC 0.1U Z 25V 1
C409 403 155 1807 CERAMIC 0.01U K 25V 1
C410 403 130 3604 CERAMIC (0.047U K 25V 1
C411 403 130 3604 CERAMIC 0.047U K 25V 1
C412 403 130 3604 CERAMIC 0.047U K 25V 1
C413 403 092 6606 TA-SOLID 0.22U M 35V 1
C414 403 1447100 TA-SOLID. 2.2U M 6.3V 1
C415 4040351405 TA-SOLID 22U M = 4V 1
C416 403 155 1807 CERAMIC 0.01U K 25V 1
C417 403 113 3805 CERAMIC 1000P K 50V 4
C418 403 113 3805 CERAMIC 1000P K 50V 1
C419 404 035 1405 TA-SOLID 22U M 4V 1
C420 403 157 8309 CERAMIC 0.1U Z 16V 1
C421 403 147 8203 TA-SOLID 470 M 4V 1
C422 403 157 8309 CERAMIC 0.1U Z 16V 1
C423 403 155 1807 CERAMIC 0.010 K 25V 1
C424 403 1551807 CERAMIC 0.01U K 25V 1
C425 403 092 5005 TA-SOLID 0.1U M 35V 1
C426 403 167 2403 TA-SOLID 22U M- 4V 1
C427 403 1551807 CERAMIC 0.01U K 25V 1
C428 403 155 1807 CERAMIC 0.01U K 25V 1
R101 4011052706 MT-GLAZE 220 JAI/16W 1
R102 401 105 2102 MT-GLAZE 18K JAI/16W 1
R103 4011053505 MT-GLAZE 270K JAI/16W 1
R104 401 1056605 MT-GLAZE 6.8K JAI/16W 1
R105 4011050603 MT-GLAZE . 10K JAT/16W 1
R106 401 1055301 MT-GLAZE 4.7K JAI/16W 1
R107 4011050603 MT-GLAZE 10K JAI/16W 1
R108 4011054700 MT-GLAZE 39K JAI/16W 1
Ri09 4011054205 MT-GLAZE 33K JAI/16W 1
R110 4011136901 MT-GLAZE 13K JA1/16W 1
R111 401 1054809 MT-GLAZE 390K JAT/16W 1
R112 401105 2805 MT-GLAZE 2.2K JAI/16W 1
R113 401 105 2904 MT-GLAZE 22K JAI/16W 1
R114 401 1052409 MT-GLAZE 2K JAI/16W 1
R115 401 1590604 MT-GLAZE 8.2 JA1/16W 4
R201 4011052706 MT-GLAZE 220 JAI/16W 1
R202 4011052102 MT-GLAZE 18K JAI/16W 1
R203 401 1053505 MT-GLAZE 270K JAI/16W 1
R204 401 1056605 MT-GLAZE 6.8K JAt/16W 1
R205 40110506038 MT-GLAZE 10K JAI/16W 1
R206 401 1055301 MT-GLAZE 4.7K JAI/16W 1
R207 401 1050603 MT-GLAZE 10K JAI/16W 1
R208 401 1054700 MT-GLAZE 39K JAI/16W 1
R209 401 1054205 MT-GLAZE 33K JAI/16W 1
R210 4011136901 MT-GLAZE 13K JAI/16W 1
R211 401 1054809 MT-GLAZE 390K JAI/16W 1
R212 4011052805 MT-GLAZE 2.2K JAI/16W 1
R213 401 105 2904 MT-GLAZE 22K JAI/16W 1
R214 401 1052409 MT-GLAZE 2K JAI/16W 1
R215 401 1590604 MT-GLAZE 8.2 JAI/16W 1
R301 401 1050603 MT-GLAZE 10K JAI/16W 1
R802 4011052102 MT-GLAZE 18K JAT/16W 1

P.C.BOARD PARTS LIST (continued)
Part No. Description ty
R303 401 1050603 MT-GLAZE 10K JAI/16W 1
R304 401 105 7503 MT-GLAZE 82K JAI/16W 1
R305 401 1050702 MT-GLAZE 100K JAI/16W 1
R306 401158 4108 MT-GLAZE 4.7 JAI/16W 1
R307 401 1053000 MT-GLAZE 220K JAI/16W 1
R308 4011050405 MT-GLAZE 100 JAt/16W 1
R303 401 1053000 MT-GLAZE 220K JAI/16W 1
R310 4011055301 MT-GLAZE 4.7K JAI/16W 1
R311 401 105 2607 MT-GLAZE 22 JAT/16W 1
R312 401 105 5301 MT-GLAZE 4.7K JAI/16W 1
R313 401 105 4700 MT-GLAZE 39K JAI/16EW 1
R314 401 1050504 MT-GLAZE 1K JAI/16EW 1
R315 4011058104 MT-GLAZE 56K JAI/16W 1
R316 401 1050603 #MT-GLAZE 10K JAI/i6W 1
R401 4011050603 MT-GLAZE 10K JAt/16W 1
R402 401 105 5301 MT-GLAZE 4.7K JAW/16W 1
R403 401 1050702 MT-GLAZE 100K JAI/16W 1
R404 401 1050702 #MT-GLAZE 100K JAT/T6W 1
R405 401 1050702 MT-GLAZE 100K JA1/16W 1
R406 4011052607 MT-GLAZE 22 JAI/i6W 1
R407 401 105 4205 MT-GLAZE 33K JAI/16W 1
R408 401 105 6001 MT-GLAZE 5.6K JAI/16W 1
R409 401 1050702 #$MT-GLAZE 100K JAI/T6W 1
R410 401 1050702 MT-GLAZE 100K JAI/16W 1
R411 401 1050702 MT-GLAZE TOOK JAI/16W 1
R412 401 1050702 MT-GLAZE 100K JAI/16W 4
R413 401 113 5201 MT-GLAZE 360 JAt/16W 1
R414 401 1136406 MT-GLAZE 5.1K JAV/16W 1
R415 401 1426507 MT-GLAZE 10M KAI/10W 1
R416 401 1050702 MT-GLAZE 100K JAI/16W 1
R417 401 1055806 MT-GLAZE 56 JAI/16W 1
R418 4011050702 MT-GLAZE 100K JAI/16W 1
R419 401 1050702 MT-GLAZE 100K JAI/16W 1
R420 401 105 2904 MT-GLAZE 22K JAT/TEW 1
R421 401 1052904 MT-GLAZE 22K JAI/16W 1
R422 4011050504 MT-GLAZE 1K JAI/16W 1
R423 401 1050702 MT-GLAZE 100K JAI/16W 1
R424 401 105 2904 MT-GLAZE 22K JAI/16W 1
R425 4011050603 MT-GLAZE 10K JAI/16W 1
R426 4011050603 MT-GLAZE 10K JAI/16W 1
R427 401 1050603 MT-GLAZE 10K JAI/16W 1
R428 401 105 2904 MT-GLAZE 22K JAI/16W 1
R429 4011052904 MT-GLAZE 22K JAI/16W 1
R430 401 1050603 MT-GLAZE 10K JAI/16W 1
R431 401 105 3307 MT-GLAZE 2.7K JAI/MI6W 1
R432 401 1054304 MT-GLAZE 330K JAI/16W 1
R433 401 105 2607 MT-GLAZE 22 JAI/16W 1
R434 4011054106 MT-GLAZE 3.3K JAI/16W 1
R435 4011052904 MT-GLAZE 22K JAI/16W 1
R436 4011050405 MT-GLAZE 100 JAI/16W 1
R437 401 1054502 MT-GLAZE 390 JAI/16W 1
R438 4011050504 MT-GLAZE 1K JAT/16W 1
R439 401 1054502 MT-GLAZE 3980 JAT/16W 1
R441 4011052003 MT-GLAZE 1.8K JAI/16W 1
R442 401 1050603 MT-GLAZE 10K JAI/16W 1
R443 401 1050603 MT-GLAZE TOK JAI/16W 1
R444 4011050603 MT-GLAZE 10K JAI/16W 1
R445 401 105 2607 MT-GLAZE 22 JAI/16W 1
R446 401 1050702 MT-GLAZE 100K JAI/16W 1
R447 401 1050603 MT-GLAZE 10K JAI/16W 1
R448 401 1052904 MT-GLAZE 22K JAI/16W 1
R449 401 1050702 MT-GLAZE 100K JAI/16W 1
R450 401 1050603 MT-GLAZE 10K JAI/16W 1
R451 401 1050603 MT-GLAZE 10K JAI/16W 1
R452 401 1052904 MT-GLAZE 22K JAI/16W 1
R453 4011050603 MT-GLAZE 10K JAI/16W 1
R454 401 1050603 MT-GLAZE 10K JAt/16W 1
R455 4011056605 MT-GLAZE 6.8K JAT/16W 1
R456 401 105 2805 MT-GLAZE 2.2K JAI/16W 1
Ref.
No. Part No.
ASSY,FPC,JACK
22 620 208 1526
620 208 0970
J302 620 017 7733
$402 620 208 0901
ASSY,FPC,SW
23 620 208 1533
$301 620 208 0925
$302 620 208 0925
NOTES:
Description
Assy,FPC,Jack
Spacer,PCB
EXT. Power Socket
Switch,Slide,1P-2T (MODE SW)
Assy,FPC,SW
Switch,Slide,2P-2T (DOLBY SW)
Switch,Slide,2P-2T (VOLUME SW)
Q'ty
a a ae
1.
Parts
order
must
contain
Model
Number,
Part
Number
and
De-
scription.
2.
Ordering
quantity
of
screws
and
resistors
must
be
multiple
of
10
pcs.

IC BLOCK DIAGRAM
IC101 TA7795FN(ER) BLOCK DIAGRAM 1C102 TA7793FN(ER) BLOCK DIAGRAM
(Pre Amplifier) | (Dolby Noise/Reduction)
NEBA QUTA DRVA GND DRVB OUTB NFBB M/N B-INS EK~IN® auTa SC-INe . HPFs LPF Sw Veco
Ver INA-F INA-R- VREF INB-F INB-R TC F/R B-INa EK~INA OUTaA SC-INA HPF « LPFaA _VREF GNO
C103 TA8157FN(ER) BLOCK DIAGRAM
(Power Amplifier) oe
IN C BST QUT BST IN ADD CUT OUT A OUT C QUT B PW GND Vcc BASE. COMP RF OUT
BST SW EQ A NF A VREF IN A PRE GND IN 8 NF B EQ B MT SW Pw SW RF IN-
iIC106 LB1673M-TP-T1 BLOCK DIAGRAM
(Motor Driver)
OUT! VREF DR osc
COMMUTATION mania -
DUT
anne
eg
’
COM
IN+
rd Yec
STB
Jpre-perver| i:
cic
eee! Rial 1@ y) q : at
6 6 =o
RI PW OW @ PU DU U PY BV v

IC BLOCK DIAGRAM (continued)
10105 CXA1405AM-T3 BLOCK DIAGRAM IC107 TA8161F(ER) BLOCK DIAGRAM
(Comparator) (Mode Selector)
vO osc Veo GND FB
(ig) 9) (8) (7) (6)
Ppt —
ae
cavers
het dee
MODE RV SWA SWB! " Swae
IC104 M34210M2-126GP BLOCK DIAGRAM.
(System Control Micom)
- STACK REGISTER SK3(11)
CLOCK _ ISTACK REGISTER SK2(11)} ag
GENERATOR 1281 X 4BITS STACK REGISTER Sk2e( 11) 2044 X 9BITS
CIRCUIT STACK REGISTER SKI(11)
ADDRESS DATA STACK REGISTER SKO(11) ADORESS DATA
STACK
REGISTER
3
CARRY 4 DATA POINTER DP PROGRAM COUNTER PC
Lae neste
- 4 4
4 7 SIGNAL
ALEX |
MULTIPLE 12
PORT D(12)

CAUTION ON REPLACEMENT OF REEL
1.
Remove
the
reel
(No.
27)
on
the
mechanism
as
shown
3.
Replace
the
removed
old
reel
with
a
new
one.
Insert
the
below.
new
reej
to
meet
the
gear
as
shown
in
figure
B.
2. Widen the hole of the reei and keep it widened, remove
the reel from the shaft, taking care not to force the shaft
as shown in figure A.
"
Fig.
A
Fig.
B
IC & TRANSISTOR DC VOLTAGES
iC PIN NUMBERS DC VOLTAGES
es
a
HA
cir
tarry
[av
[oe
fon
fo
powlow|
ow
[ow
[owlowjow|
ov
|
ow
|
w
{ow
tow
|
f=
jay
ce
Tiare
Pow
pow
[owlowpon
|
wv
few]
ov
|iviiv|
w
|
wv
jowfow|ow|ow
|
—
fT
fa
io1ce
|
TABTSTFN
ae
as
|
ae
[as
fee
|
ar
ee]
ee
|e
|
ot]
se
|
as
|
oe
fs
[oe
[a7
|
ae
|
a0
[40
|
Talon
ea
pom
=
4
ie
le
ee
ee
a
ee
The
voltage
of
IC104,
105,
106,
and
107
should
be
regarded
as
reference
figures
measured
when
the
P.C.Board
was
removed
from
the
unit.
|
IC PIN NUMBERS DC VOLTAGES
Tern
|
pewcr
|
1
[273
]«)]s
,e
7
[es
Tw fa
|
fia
[1
|
5
IC104
)
M34210M2
ov
“o1_[
22
|
23
|
2
|
25
|
26
|
27
|
28
|
2
|
so
|
i
[
a2
|
aa
|
s«
|
a5
|
a6
|
a7
{
se
|
|
40
|
ar
|
ae
|
a
|
|
4s
|
as
|
a7
[
8
|
ao
[so
{
st
[sz
[sa
|
sa
|
ss
|
s6
|
57
|
58
es
ee
Toros
[oxaraosam|
rev]
oz
|
ov
|
ow
|
aav|2v|evlewl
-
|
-
[|
-
|
-
|
-
[|
ft
-
|
7
Ic108 | LB1673M
“ar
[2
[2s
|
ea
|
2s
|
26
|
7
|
me
|
29
|
so
|
a
|
32
|
as
|
sa
|
as
[
a6
|
a7
|
oe
|
se
[
ao
|
Pi)
ia
Oe
oe
ee
ele
ee
ec
ee
|
Se
er
[Laser
prev
|
ov
fT
ow
|
w
|
w
fow|
wit
piv
aw
-
[oP
y=
P-
P-t
pj
TRANSISTOR DC VOLTAGES
note
[DEVICE
|B
[©
|
E
[Ret
No.
[vevice|
B
[
¢
|
©
[Reino
[ever]
@
[
¢
|
EF
—asor
|
scaoe1
|
oev
|
ov
|
ov]
aaa
[asarsre
[sav
|
ov
|
12v
|
aso
|
2speis
|
ov
|
vay
|
120
|
asor
|
2scacar
|
oav
[ov
[ov
|
040s
[ascaoer|
ov
[aw]
ov
|
asia
_|
2sceoe
|
ov
|
2av
[ov
|
256408"
2504061
ace
|
eseers
[aay
Pui
[tay
[oar
[ascaoer
|
ov
{i.ov]
ov
|
asia
|
2sceoe:
[ov
[ov
|
ov
|
ov
[ia
fw
|
ase
]escaer
fo
fawt
owt
1
|
|
|

Basia
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4 : ih : a ey ee Li ieee RR TNE, ae Hoag oe sepa EN E BE RES as Cas ¥
: ies Pen aaa ae ‘ : soon sé | : ‘ ise sem HEBER etnies aye eS a bd \
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: : 0), : ay es ea
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; : wed ERA é bs ‘ ‘ ee ; ae be ca ae
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: ee : : } : con ss a 2 LT pape (Ox a cee : ee
t areerete i ‘ je ky Nasingie juss eae ate ooo) be a : oo a et . SRE nana ee Cay A Ee et
: : 4 canes H ee Ce as . ; ee a Drie an eae cota Pcie, as a ae
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i | : : | : 7 : ery Baer a wy : 5 ae) e |
; : ; i Se ReaD nae Mag tO Be gsr lee a
' ( ‘ t . as aa cic a” Fe a :
‘ ae . > i : : 7 ‘iy dg oo Bt
, fer at e i is Oa | ue : 3 a F
hi : i : a | * : : : Binh ee a . E
a i ; : ' : rt a :
Pe ee : | : : : 8 :
fae a ; way gas ies : Aga :
eo t : ; aaah aoe
i i a i ‘ pret a
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A ; ie
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i
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apache : :
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Neng
S
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te 3
EXT. POWER
SOCKET
JB02
—~13- oo. | : _ —-14-

SCHEMATIC DIAGRAM
Ri12 Cits
2. 1
PLAY HEAD
FWD
°)
REV
or
R108 C107 R109
39K 1 33K
_LCH
FWD
aot y. :
2 i.
sv ' FF Ram la aa:
es i! SGT. poe
Tae Be est : : ; sess 5
) re ee eerie angie SEN,
Me ated fp 00) 8) ere eee ;
tet . ‘ ¢o7 :
4
aa
ICtwOt
TA7795FN
PRE AMPLIFIER
rs ,~IC103
“= TA8157FN
-POWER AMPLIFIER
J301
HEADPHONE JACK
390
C208 .
R208 C207 | R209 3300P At C303
39K 1 | 33K , 22/4
RCH
Q
2SB8 15
$40}
N/M SW F/R SW
hen Rast BK
? - - : = = i eS eoeee g = ie = 7 : K
RE Ss Pe Oehats x
R454 2 R482. -— seas
10K > ut. 330K: LP nah? :
a407} |) 0.47 Bee > nae |
Bscddate RAB Se
| ke | TRABO- «- C409
ea LT OK DOL FA rh to
J302
EXT .POWER
SOCKET
IC104
M342 10M2
SYSTEM CONTROL
ee &
_. - COMPLATOR
ne Brite
-. . R446 RAA7S pans -~ ab os
100K S 10KS "D0K
en ~ chee Rass NOTES:
| | 1. All resistors are 1/4 watt or 1/6 watt 5% unless marked.
LID SW 0412 ee, | Otherwise Resistor values are in ohms (K=1000 ohms,
2SC4081
aS
3
-
M=1000k
ohms).
ee | 2. All capacitor values are in microfarads. (P=picofarads).
3. This is a basic schematic diagram.
S15 = | — 16 -

IC & TRANSISTOR LEAD IDENTIFICATION
TRANSISTOR FRONT VIEW BOTTOM VIEW
DTC114
2SA1576
2SB815
2904081
2SD1048
TERMINAL NAME
B + BASE
C + COLLECTOR
E —~ EMITTER
CXA1405AM-T3 TOP/SIDE VIEWS TA8157FN(ER) TOP/SIDE VIEWS
TA7793FN(ER) TOP/SIDE VIEWS
TA7795FN(ER) TOP/SIDE VIEWS