Sony MP-F17W User manual

,-' I
,:,: ~ - ~,~ fCR 0 FLO PP '( DJ SX OR.l 'I E
Rev.A
70112
SONY
·SERVICE MANUAL

TABLE OF CONTENTS
Des cr ip ti on
SECT! ON 1
SECTION 2 I
tHROOUCT! ON
TOOL SAND MEASUR I NG I NST.RUME NTS ....................... .
~
1
2
2
3
Z-l GENERAL AND SPECIAL TOOL LIST
Z-Z
SPECIAL TOOLS
Z- 3
SECT! ON 3
SYSTEM CONFIGURATIONS
TROUBLESHOOTI NG ••••••••••••••••••••••••••••••••••••••••
15
18
3 -1 BEFORE TROUBLESHOOTING ••••••••••••••••..•••••••••••••• 18
3-Z
TYPES OF ERROR ON A SYSTEM LEVEL
3-3 FAULT DIAGNOSIS BY MFD FUNCfIOO amCKER II
3-4
FINAL
CHECK ........ ...................................
3-4-1
Final
Check for 1MBy t e
Mode
.......................
3-4-Z
Final
Check for 2MBy t e Mode
.......................
3-4-3 Error Message
18
18
26
26
30
SECTION 4 PART RE PLACEMENT ••••••••••••••••••••••••••••••••••••••• 35
4-1 COVER ASS'Y REPLACEMENT •••••••••••••••.••••••••••.•••• 35
4-Z
FRONT PANEL ASS'Y AND EIECf BUTTON REPLACEMENT •••••••• 35
4-3 LG-Z MOUNTED BOARD REPLACEMENT •••••••••••••••••.•••••• 35
4- 4
MT- Z MOUNTED BOARD REPLACEMENT 36
4-5 HALL IC ASS'Y REPLACEMENT ••••••••••••.••••••••.•••••••• 36
4-6 CASSETTE HOLDER ASS'Y REPLACEMENT •.•..••.
4-7 SLIDE PLATE ASS'Y REPLACEMENT ••••••••••••
37
37
4- 8 00 SENSOR REPLACEMENT ••••••••••.•••••••.••••••••••.••• 38
4-9 HEAD CARRIAGE ASS'Y REPLACEMENT •••••••••••••••••••.••• 38
4-10 STEPPING MO~R ASS'Y (RO~R ASS'Y AND STATOR ASS'Y)
REP LACBMENT •••••••••••••••••••••••••••••••••••••••••• 39
4-11 OIL DAMPER REPLACEMENT ••••••••••••••••••••••••••••••• 39
4-12 COMBINATION OF HEAD CARRIAGE ASS'Y AND LG-Z MOUNTED
BOARD •••••••••••••••••••••••••••••••••••••••••••••••• 40
SECT! ON 5
CHECK AND ADJUSTMENT ••••••••••••••••••••••••••••••••••• 41
5-1 RADIAL ALIGNMENT AND TRKOO SENSOR
5-2 HEAD CCMPLIANCE
5- 3
INDEX PHASE
...........................................
5- 4 .HEAD CLEANING ••••••••••••••••••••••••••••••••••••••••• 47
SECTlON·6 PARTS LOCATION AND LIST (For MP-F17W-50L) .............. 49
SECTI ON
6-1 PARTS ASS'Y LOCATION
6-2 MECHANICAL PARTS LIST
6-3 OVER ALL DIAGRAM
6-4 CIRCUIT DIAGRAM ••••
6-' PARTS LAYCJt.rr .•...•••.••.•....•.•••••••.•••.••.••••••••
6- 6 BLEC'fRIC PARTS ••••••••••••••••••••••••••••••••••••••••
7 PARTS LOCATION AND LIST (For MP-FI1W-50D) ••••••••••••••
7-1 PARTS ASS'Y LOCATION
7-2 MECHANICAL PARTS LIST
,
49
51
52
53
56
58
62
6Z
64
..,,,,,,,

TABLE OF CONTENTS
Description ~
7-3 OVER ALL DIAGRAM •••••••••••••••••••••••••••••••••••••• 6S
7-" CIRaJIT DIAGRAM ••••••••••••••••••••••••••••••••••••••• 66
7- 5 PARTS LAYOUT •••••••••••••••••••••••••••••••••••••••••• 69
7- 6 ELEcrRIC PARTS •••••••••••••••••••••••••••••••••••••••• 71
SECTION 8 TRANSISTORS / DIODES / ICS PIN ARRANGEMENT ..•.......... 75

SECTION 1
INTRODUCTION
Thil manual iI a maintenance guide for modela
MP-F17W-50D and MP-F 17W-50L.
SECTION Z
describes dislu and toola necessary
for maineenanc e.
SEc;TION 3 provides fault diagnostic procedures
that may require spare parts or some adjust-
ments.
-1-
The overall check after removal. and adjust-
ments will be included in mil section.
SECTION 4 and , cover part. replacements and
adjustments, respectively.
SECTION 6 and 7 consile of circuit diagrams,
ass'y drawings, and parts lilts.

SECTION 2
TOOLS AND MEASURING INSTRUMENTS
2-1 GENERAL AND SPECIAL TOOL LIST
The tools and measuring instruments for per-
forming maintenance on the HP-F17W series are
listed below.
a. General Tools
+ driver 2l11D
+ driver 2.6l11D
Tweezers
Round nose plier
Cutter
LR Driver
CP/H (SKW-7002)
Soldering iron (20W)
Desoldering metal braid
DC power supplier
SONY parts No.
(7-700-749-01)
(7-700-749-03)
(7-700-753-02)
(7-700-757-01)
(7-700-758-02)
(3-985-911-11)
+5VDC±5%, l.5A min., +12VDC±5%, L.5A min.
Tester
b. Special Tools
HFD Function Checker II
IF Board 52/53
Fixture-LO
SHC System
For
AC 120V
SHI-70L1/SHI-7011A/
SHI-7012/SHI-7012A
SHC-70
KX-l3HGl
SKK-0001
SHI-7016
Digitizer
Conversion Cable II
(J-623-9L6-oA)
(J-623-904-oA)
(J-623-909-oA)
For
AC 220V
SHC-70GP
PVH-137lQH
SKK-0002
SHI-7016
(J-623-o22-oA)
(J-623-o2l-oA)
Radial Alignment Adj. Driver (J-623-810-oA)
TRKOO Adj. Lever (J-623-910-oA)
Index
Adj. Lever (J-623-911-oA)
Pad Weight (J-609-158-oA)
Conversion Cable (01)
only
Torque Driver with two bits
Power Cable
Interface Cable
c. HeasUZ'iq Equipaent
for HP-F17W-50D
(J-623-907-oA)
(J-623-807-oA)
(J-609-130-oA)
(J-609-201-oA)
Oscilloscope Dual Trace 20KHz
Universal Counter Resolution O.lmsec.
d. Disks
KFD System Disk (OR-D176VA)
Cleaning Disk (OR-D29WA)
(8-969-920-54)
(8-960-009-39)
This disk can
be used for head clean.
HD Level disk (OR-D206WA)
Level Disk (OR-D46WA)
(8-969-920-11)
(8-960-009-40)
These disks
are used to check the read amplifier
gain. The
self-read/write operation can be
checked with these disks and. the SHC System.
4M Dynamic Inspection Disk +30 (OR-D222WA)
(8-969-920-62)
Dynamic Inspection Disk +30 (OR-D51WA)
(8-960-009-44)
2H Dynamic Inspection Disk -30 (OR-D223WA)
(8-969-920-63)
Dynamic Inspection Disk -30 (OR-D52WA)
(8-960-009-45)
These disks can be used
in the final check for
a drive with the SHC System.
Hote:
(+) indicates that data has been recorded
in
the inner side of tracks.
Side
0/1
(-) indicates that data has been recorded
in
the outer side of tracks.
OR-D51WA/OR-D222WA OR-D52WA/OR-D223WA
Offset of +301J1D Offset of -301J1D
for all for all
formatted tracks formatted tracks
Content of Dynamic Inspection Disk
50 Auto Disk (OR-D157WA) (8-960-010-60)
This disk has prerecorded
data such as Cat's
eye
pattern and Index signal to check and
adjust
the off-tracking and index position.
Signal
Tracks
Side
0/1
Index Burst
40
Cat's Eye Pattern
00.
22, 27
Cat'. Eye Pattern
31.
36,
45
Side 0 49.
54, 58
63.
79
2F
04
Side 1 2F(
+301J1D off
track)
76
Content of 50 Auto Disk

e. bpeoclable and Cheaical Supplies
Sony Oil (7-661-018-01)
Molykote Grease (7-662-001-81)
Bamboo Stick
2-2 SPECIAL TOOLS
2-2-1 IIFI> FUDCaCIG Olecker D
(1) MFD Function Checker U configuration (Refer
to Fig. 2-1)
Main Checker Board
34P
Flat Cable
Power Cable (2 pieces)
(2) MID Function
Checker II function
(2)-1 Switches
• SW16...
Set this switch to the "250Kbps"
side for 1MByte mode. ("500Kbps" side for
2MByte mode.)
•
srEP OUT (IN)... Steps the head outwards
(inwards).
The head continuously moves if STEP IN
or OUT switch is kept pressed.
C» WDSEL ... Selects such write data as "2F",
"IF", "M", ''W'' or "DC".
o WRITE... Records data specified by the
WDSEL switch, onto one track.
o CHGRST... Resets the DSKCHG signal. (for
eject motor installed version, eject the disk)
o INUSS... This switch is used to light the
INUSE lamp.
e HDSL ... Selects one of two heads (side 0 or
side 1) for a double sided. (This switch is
invalid for single sided version.)
o MON... This is used to operate the Disk
Motor.
e DRIVE SELECI'... Selects the disk drive.
The number of this DRIVE SELECI' must
agree with the DRIVE SELSCI' number of
the drive under test. The number embossed
on the component
itself (1,2,3,4) is not that
assigned for the drive selec t.
• RESET ••• Resets the CPU•
•
srEP RATE ••• Set this switch to "3ms" for
the MP-F17W series.
• TRACK 00 ADJUsr... This
starts
measurement of the TRK 00 sensor level.
MP.FI7'N-50L
J2~ ,~
I~~
Jl
MP.FI7W·50D
<"
the
Main Chscksr Board
J2p'
~, .~
Jl
Powsr CabJs
Fig.2·1 MFD Function Checker II Configuration
-3-

• SW4 ... Set this switch to "A" for MP-Fl7W
series•
.. SWl... Feeds power supply voltage of +5V
and +12V to CN 3 (34pin connector).
Set this switch to "34+4" side for the
MP-F
17W series.
(2)-2 Indicators
•
WDSEL ... They indicate the selected position
on the WDSEL switch.
• IIF signals... They indicate the states 0'£
TRK 00, ROY/HDSEN, DSKCHG, WRTP RT,
and INDEX,
respectively.
The TRK 00, WRTPRT, RDY/HDSEN, and
DSKCHG
indicators are lit when the
respective IIF signals are low (true). The
INDEX indicator blinks when the INDEX
signal is applied to
the board.
• Track Position... Indicates the current track
poaition.
(2)-3
Test Points
TP-l, TP-8, TP-9; GND
TP-2; MON
TP-3; INDEX
TP-4; RDDATA
.. TP-5; WRTGT
TP-6; WRTDT
TP-7;
srEP
TP-IO; EXT
TP-ll; TRG
(3) Part Layout and Circuit Diagum on MFD
Function Checker II. (Refer" to Fig. 2-2,
2-3)
Fig. 2·2 Part Layout on MFD Function Checker /I
-4-

+5V
C,N2
+5V
+5V o--~~-,
+5V 0--t-1 ..... ...,
r+--I- '1184-1 ' ... 1-1-
, , 5N7545112 r, ,- - " RB1
100/18Vx2
Vee
RB6 r
H'
ICt6
-1-1--,- -I-, +5v LS279
~GNo
pes
1
SW6 L +- -I- .J 10K L '_I- .J lK
P50~~~S~E~L~E~C~T~1~--- _______________ -- __ ~~~~~::::t:~:t::::::::==1~=>~:3~1~C~l~--~t'=F-i=~-------1
I. 0 r->'-- 21 +12V
P51r2~3~~S~E~L~E~C~T~2~ _________________ -- __ --+----_+-~ ________ ~6;r~5 IC1
CNl
c
SWt4~
-I- H- -I-J ~.-----.
2 S 0 4
1 I
IC16
LS279
6 S
SW15~0- __ ~~I ________ ~5 I o 7
SW13
SW11
I
I
I
I
IIB7
1K
IC16
LS279
t5 S
14 ,
IC16
+5V LS279
H
! I 10 S
o-~--4-~----~1
I I
C17
I
+5V LS279
t;.-----.
..... ____ -J~---...!2=_1S 0 ~
s.,LS] 1,
"'r:~
SW4~:J ::;1 ~i
....
:::>z
c-
III ....
t-wG"D..
-cnW&a.l
a::Qt- ....
:.:.rncn
+5V
~YCld
~ Vee
rEA
l!.!! Va.
...
N
'"
...
N
'"
...
N
'"
....
III
III
III
co:
..
....
c
....
x
",,,f'lN'"
"'''''''C'ltr't
.r-CDtA •
N'" __ _
Q.CL.CLCLG..
IC 5
jJPD8749HD
....
x
3
11
lK --I Nt· '" :!:::I:I~I
SW5~O---""1--='';'':;-~1 DI- 81112131
:E C5 X1 C4 LE02 I
1
22PI 6 .. H% T22P HP5082
011 I 7340( 1)
151555 ". 5~ 71
C3
+5V
33/18V
+5V
1 ~ 7
P52 22 SELECT3 ...,. 1 :3 IC2
2 r-o--- 2
P53 21 SELECT4 6 51C2
1112 1Kx2 3 ....- 7
... "<>'
+5VO---I~~ __ -"" IC17 ~I
:-----..., 1 LS279 +5V o---1~"" '''"
1111 o-l. 6 • 0..1 'I- +5V o--~~-, I
~ 155' r- ,. ,- , IIB4-2 ' I- II +12V
~ I I I 10K 5N75451x2 I' ,- - "I IIB5-1 II
"ON 5W7 L- __ -' L_I_I- .J L I .. _I- .J 1K
+5 V
0-- t-1:+_-:t:-:-5-:V:---I
--F 2 GNo
,;;
Lr.3:+-G:'-N~D:--I
+12V ~~4~ __ +~1~2~V~
SW1
1 CHGRST
P60~2~0:=~~;;:===================~::::~~~~~~~~~~~~~~ifP~3~I~C6~==~tr-~f:~==~-r'-fi-ti-~;r====~~~t=~C~N~3~a
P811.
1~9~...!H~0~5~L~--------------------~~~~~~L::t:tj:::::::::::~6C:).2~I~C~6~ __ +-tJ~_~ I
"-- 71 2 oSKCHG
a: SW8~"'---"
UW P82rl~8~~I~N~U~S~E~-- ________________ ~~t'~~ O~L:=+:t:::::::::::::21~=>~3~I~C~7~--t-L-----t--i-+-ti-+-~----~-+-t3~!~~~~
~o I. SW9 ~ o-c 4 INUSE
~ ~ ~ P63rl~7~_C~H~G~II~S~T-------------------------- __ ;;~t:~~~~:::t:::::::::::::::J~1:~5~I~C~7~ ____ J- __ -;;;~;t __ J I f- 5 +5V
N ~ I SW10l--'- Oo--t. RB5-2 6 SELECT4
U (Xl x '". .....-." +5V 0--_.-. 1K T6
3
I- 7 +5V
- 0 W ... SV 5N7545112 ,.-1-1- , -.1.. B INOEX
~o , I
~~ P70r1~3~_S~T~E~P ____________________________________________________________ li1~~3~IC::1:2 ____ ~~1~-~:r~.J----~~
P7111~4~~0~1~II~T~N~ ____________________________________________________ f.~~~5~IC:1~2~ __ ~-L ______ ~~
I- 9 +5V
10 SELECT1
"-11 t5V
12 SELECT2
~31C11
... ~
15 E"ECT
P72 +5V
o IC15 ICB
TPt1
TIIG
r- 1 GNo
14 5ELECT3
P73r!!- Ls_ B LSOO LS244
P4012 iG iol )
IC1B
LSOO
TP2
9
f-15 GND
P4 1 i3 wTF 1 3 ,,>.7'-::---::-- ___ ..,
P42 4 WCP v 15" 5
+5V
o
1
16
1-17
lB
MON
GNo
olRTN
P43!5 ER"A5Tv 17 ..... :3
",:,"10
2 3
TP7
?
1-19
!O
GNo
STEP
c:I
O_NI'IO
NNNNC¥
a..a.Q.Q..Q..
::I~I"IDI"'I
... fN II) .. 1ft
NtNN NtN
O_N(I')"
NNNNO
a..Q.CL~G:
...
+~V IC14 "" ~ ____ ~1~6~1~7~1~8~1~9~ ____ ~_:~V
T LS74 ~ i"Jn'R »:&;;::: YOO lJU
~ D P),R
4 0
r5't-I_IO_"_IP_'-Q.,...;.,S.:..W::.1.:.6 : ~ I C 3 Q2 14
r>C
hR
1I~1··&IP'r "" l~--+--r-~!.t.~ F82S159 a:::tq, 5NI7CS14351+5: 1115 lK "-r=-+-~~_-j-tl-i2~:tW~G~R~:~~~T~
L
__________________ ~~ __________ ..,.-J2~~3~i_----~_1~--~ 6 TIIKOO
+~V b-2 GNO
+~V +~V +5v +~V +~V +~V IC1S TP4 8 WRTPRT
GNo
2
WilT DATA
1-23 GNo
1_ 4 I. .1.10 9_ PI4 10 112 __ .. ~5VLSOO 1114 3.3~ "9 ~129 t12V
~rD--pf.R;::-o..,~t- li D PI ot!1- ~ D ot.2- D PR 0~4 6~ 1 3 0 lIo0ATA
5 2 R4 10 L-------t1--1~_t--_1~--1~~1==~+~1!2lV~
TOI-'1t...-...:
3
:.tocIl
LR
II.! ~~ a"! ~--=3:.toc Q ~'Q 8 ICt5 K 2 HoSL
C ,-r'bLR 'bLR IC4 r'cLR L500 _.::.9<1~1~l--l ______ l ..... ________ -,
"-133 tl2V
iT IC9 13, 1 LS74" 13'!' " TP10 4
6 LS'T4 6 L- ___ :..I _ r:l.. C21'" 1119 "'SV Ice 10KI4 ··.12 READY
Pl0~2~7~~~+~S~V~~~~~~+~5~V~~~~~~il~8~1~~22~~1~.~0~I~~~~10~0~K~~~~~~L~5~2~4~4~~~~~lIj8~~ro~~~~~~!J ?CN4
Pl1 28 T " 16A4 115 ."1 1 EXT
P12 29 .... 14A6 lUI ."3 2 N. C
P 13 :3 0 " 12 A 8 116 ,;:;.- ~3;.,o. __ ..;;G~N..;;O_ ...
LED ~ ~.:;l~ ~ IC8 111".
.",.r-
acaa
... ":I"~I'I~I
... - ....
8 1 2 3
I.
LEol
HP50B2
7340(10)
5~ 71
GL9NG2x5 113
a
I~l-~f'" - -' "I 1182 L5244
680 L __ -f-.J 470
't5V
I 1.5/2SVx14
1"SV
TPl TP8 TP9
Fig. 2-3 MFD Function Checker" Circuit Diagram
-5-
-6-

2-2-2 IF Board '2/53
(1) IF Board 5Z/'3 configuration (Reier to Fig.
Z-4)
Main IF Board
RF Cable
IF Cable (34pin)
(Z) IF Board 5Z/'3 func non
(Z)-1 Switches
o MOTOR ON .......... Sets the motor of the
unit to rotate.
f) POWER SEL (CN1) ••••••• Feeds power supply
voltage of +5V and +lZV
to CN 1 (34pin
connector).
Set the this switch to "off" for MP-F 17W
series.
U)-Z Indicators
.. 01/02........ These indicators are lit, during
the
actual power supply of +5V and +lZV to
34pin connector. No indication for MP-FI7W
series.
o 03/04 ........ These indicators are lit, during
actual power supply of +5V and +lZV to IF
board 52/53.
(Z)-3
Test Points
o RF out/TRKOO/GNO ••••• These test terminals
are used for radial alignment adjustment.
(Reier to 5-1)
(3) Part Layout and Circuit Diagram on IF
Board 52/'3. (Reier to Fig. Z-" 2-6)
Fig.2·4 IF Board52/53 Configuration
-7-