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SERVICE MANUAL
P-70
CD Drive Unit
CONTENTS
1 SPECIFICATIONS 2
2 ADJUSTMENTS AND CHECKS 3
3 EXPLODED VIEWS AND PARTS LIST 4
4 PC BOARDS AND PARTS LIST 12
5 INCLUDED ACCESSORIES 23
NOTES
PC boards shown are viewed from parts side.
Parts marked with * require longer delivery time.
The parts with no reference number or no parts number in the
exploded views are not supplied.
As regards the resistors and capacitors, refer to the circuit diagrams
contained in this manual.
£ Parts marked with this sign are safety critical components. They
must be replaced with identical components - refer to the appropriate
parts list and ensure exact replacement.
Parts of [ ] mark can be used only with the version designated.
Effective : September, 2002 S-0076A
1 SPECIFICATIONS
Pickup General
Drive method ......................................................linear motor drive Power supply ................................AC 230V, 50Hz (Europe model)
Type ................................objective lens drive, optical three beams AC 120V, 60Hz (U.S.A./Canada model)
Lens drive method ..........................two-dimensional parallel drive AC 220V, 60Hz (Korea model)
Light source....................................................semiconductor laser Power consumption ................................................................25W
Wavelength..........................................................................780nm Dimension (WxHxD)....................................465 x 162 x 355 (mm)
Weight..........................................................................about 25 kg
Digital output formats
Base sampling frequency ..................................................44.1kHz Remote control unit
Frequency precision ..................±50PPM (indication: ±1.000PPM) Type ..............................................................infrared pulse system
Quantization bits ..........................................16 bits linear/channel Battery ............................................DC3V (AA battery, SUM-3 x 2)
Transfer rate..............................................................3.072Mb/sec. Dimensions (WxHxD) ......................................57 x 21x 216 (mm)
A type modulation..................................biphase, mark modulation Weight..........................................about 320g (including batteries)
Base sampling frequency ..................................................88.2kHz Accessories included with the player
Frequency precision ..................±50PPM (indication: ±1.000PPM)
Remote control unit x 1, Batteries (AA, SUM-3) x 2,
Quantization bits ..........................................24 bits linear/channel
Power cord x 1, felt sheet x 3,
Transfer rate..............................................................6.144Mb/sec.
Metal tool for releasing and securing the anti-vibration clamp x 1,
A type modulation..................................biphase, mark modulation
Warranty card x 1, Owner's Manual x 1
Base sampling frequency ................................................176.4kHz
Improvements may result in specification or feature changes
Frequency precision ..................±50PPM (indication: ±1.000PPM)
without notice.
Quantization bits ..........................................24 bits linear/channel
Transfer rate........................................6.144Mb/sec. (double wire)
A type modulation..................................biphase, mark modulation
Digital output terminals
RCA (COAXIAL) ....................................................0.5Vp-p/75 ohm
XLR (BALANCED)................................................4.5Vp-p/110 ohm
OPTICAL(TOS) .................................................... 12.5 ~ 16dBm
Word synchronization input format
BNC ......................44.1kHz, 88.2kHz rectangular 4.5Vp-p/75 ohm
SAFETY INFORMATION
This product has been designed and manufactured according to FDA 1 For U.S.A.
regulations "title 21, CFR, chapter 1, subchapter J, based on the Radiation
Control for Health and Safety Act of 1968", and is classified as a class 1
laser product. There is no hazardous invisible laser radiation during
operation because invisible laser radiation emitted inside of this product
is completely confined in the protective housings.
The label required in this regulation is shown 1.
OCAUTION
USE OF CONTROLS OR ADJUSTMENT OR PERFORMANCE OF
PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN
HAZARDOUS RADIATION EXPOSURE.
Optical pickup:
Type : KSS-151A
Manufacturer : SONY Corporation
Laser output : Less than 0.2 mW on the objective lens
Wavelength : 760 - 800 nm
2
2 ADJUSTMENTS AND CHECKS
2-1 Replacement of the Pickup Assembly 2-1-2 Objective
Never look directly into the LD or observe the laser beam
2-1-1 Cautions in handling through another lens or mirror.
Before removing the pickup assembly be sure to solder-bridge Don't touch the objective with fingers.
where indicated in the inset to prevent the laser diode from If objective becomes dirty, playback will deteriorate.
being electrostatically damaged. After replacing the pickup To clean the objective, moisten a good cleaning tissue, such as
assembly, be sure to unsolder the antistatic bridge. Or else the made by KODAK, in isopropyl alcohol and wipe the objective
laser diode does not function. gently. Wipe off and excess fluid with a dry cleaning tissue.
2-2 Sled balance adjustment
1. Adjust V403 for 0V potential between P415 pin 1 (SO) and pin
2 (GND).
SERVO PCB
Before servicing the pickup assembly be sure to prevent V403
electrostatic-inducer destruction by grounding not only test
equipment in use but also yourself.
1
In case of mounting and dismounting the assembly, do not
touch the actuator, photosensor and LD plate. P415
Don't touch the plated portion of the flat cable end directly with 8
fingers.
Use care not to break the flat cable.
Soldering must be done quickly at less than 30W, 320 .
Don't disassemble the pickup ass'y.
Don't apply shock to the pickup ass'y.
Don't place the assembly in a place subject to excessive dust,
heat or moisture.
The pickup is secured with an anti-vibration clamp in order to
reduce vibration during transport. This must be released
before use. NOTE:
You do not need to use force
to clamp and unclamp the
Releasing the anti-vibration clamp unit. This may damage the
unit. Use only the supplied
1. Place the unit on its side, left side down, as shown here. tool and turn gently.
2. Use the supplied tool and insert it into the hole on the bottom.
3. Turn the tool about 30 degrees counter-clockwise in the
FREE direction.
Securing the anti-vibration clamp
1. Remove any disc from the unit, disconnect the power, and
place the unit on its side, left side down, as shown here.
2. Use the supplied tool and insert it into the hole on the bottom.
3. Turn the tool about 30 degrees clockwise in the LOCK
direction.
3
3 EXPLODED VIEWS AND PARTS LIST
EXPLODED VIEW-1
!
1
2 !
2
5
4 @
@
3 6
@
6
8 7
0 #
9 #
q r
# y ^
$ w i
e p u
% #t
o 3
a &
^ @
x e f
0 d # &
s #
j 9
h
g
c #k #
8
l $
;
z
%
v b
*
*
*
(
n
*
m
)
4
EXPLODED VIEW-1
5
EXPLODED VIEW-2
@
2 # !
@ ! $
% #
!
1 8 $
3 7 ^
6 !
4 #
4 5
4
$
! 9 2
! 0
@ !
q ! a !
!
!
!
w
! f
! s
e
r !
! !
! d
u !
t g
! !
y
y
c
k &
! o
&
l i
! h
@ p
! ; r
x j
z
!
j
! !
*
@
6
EXPLODED VIEW-2
£
£
£
£
7
EXPLODED VIEW-3
8
EXPLODED VIEW-3
9
EXPLODED VIEW-4
10
EXPLODED VIEW-4
11
4 PC BOARDS AND PARTS LIST
12
AC IN PCB
13
WORD IN PCB
14
REAR TGL-SW PCB FRONT TGL-SW PCB TRY-LED PCB
LED PCB
15
FL KEY PCB
PWR PCB
16
UP-CON PCB
This PCB is a four-layered board.
17
CLOCK PCB
This PCB is a four-layered board.
18
SERVO PCB ASSY DIRECTION PCB ASSY
SENSOR PCB ASSY
AC-IN PCB ASSY Part of GATHER PCB A ASSY
£
£
£
£
£
£
£
C-MOTOR PCB ASSY £
£
£
T-MOTOR PCB ASSY
19
WORD-IN PCB ASSY Part of GATHER PCB A ASSY TRY-LED PCB ASSY Part of GATHER PCB A ASSY
FL KEY PCB ASSY Part of GATHER PCB B ASSY
LED PCB ASSY Part of GATHER PCB B ASSY
£
£
£
REAR TGL-SW PCB ASSY Part of GATHER PCB B ASSY
£
FRONT TGL-SW PCB ASSY Part of GATHER PCB B ASSY
20
PWR PCB ASSY Part of GATHER PCB B ASSY UP-CON PCB ASSY Part of GATHER PCB C ASSY
£
£
£
£
£
£
£
£
£
£
£
UP-CON PCB ASSY Part of GATHER PCB C ASSY
£
£
£
21
UP-CON PCB ASSY Part of GATHER PCB C ASSY CLOCK PCB ASSY Part of GATHER PCB C ASSY
£
£ £
£
£
£
£
£
£ £
£
CLOCK PCB ASSY Part of GATHER PCB C ASSY
£
£
22
5 INCLUDED ACCESSORIES
INCLUDED ACCESSORIES
£
£
23
SCHEMATIC DIAGRAM P-70 SERVO PCB
1 2 3 4 5 6 7 8
to Checker
L401
1 2 5A1
FE BEAC Q401 P415 5D1
1
R403
2 2SA1369
2 1
R405
1 2 22
ZR8P
1 2 C485 47/16V PCB,SERVO
P401 100
TOK-L20X-A1 1 2 22 8 7 6 5 4 3 2 1 C468 0.1
1 1 1 2
1 E C403 R406 1 1 5D3
47/16V 3 C405 C406 F F T T R V G S
2 F 2 2 47/16V 47/16V E E E E F R N C 5D3
R404 C404 2 2 2 1 2 1 D
A 3 K
4 B
5A1 1
1k
2
0.001
1
R510
2 1
C482
15p
2
1
R472
2 1
L402
2 P413
ZR-8P
10k 10u 8 +5V
CKD
5 A C407 2 1 C484 2 2 2.2k 1 2 2 SSTR MM F LLA 1 1 1 U412D
0.1 GA2 DO O OAT C492 R512 4 R473 4 7 GND
47/16V R509 R408 KTA 0.1 74HC04
6 C 1 R508 8.2K SFDR PN K 1k 1 470
C402 U401 1 2 16K 1 1 4.7k 1R412 1 21 2 U411A 3 1 2 9 8 6 OPT
7 D 47/16V 1 20 2.2K 09999999999888888888 1 1 2 2 74HC00
2 2 LD VCC 19 09876543210987654321 C493 C451 5 SW
8 GND 3 PD /LDON 18 R471 1 7 1 1 100p 1 1 7
PD1 RFI SSLMMMFFDMVCCXDADSDX 0.1
R401 4 17 2 220 C449 4 ZXL
PD2 RFO FSODDOSOFIDOLLATFCIR 18p C453
9 VR 1 2 5 16 DTCSPNWKCRDUOATSSLRS C450 C454 0.1
5A1 VEE FE TR TKTAKWKCT 2 GND
75
6 F FEBIAS 15 RPK 47/16v 2 2 47/16v 2 2 3
to PICK UP 10 PD 7 E TE 14 1 2 1 2 1 SRON SENS 80 SENS
KSS151A 2 GA1 8 13 SRDR 2 79 MUTE 2 CLD
11 LD 9 VR EI 12 R407 2 R503 3 SRDR MUTE 78 SOCK
VC EO R515 R409 33k SFON SQCK GD3
4.7k TFDR SQSO GND
C474 1 1 10 NC NC 11 2.2k 10k 4 TFDR SQSO 77 1
12 GND 1 C476 1 2 1 2 1 2 5 TRON EXCK 76
47/16V CXA1571N R413 1 TRDR 6 75 1
13 VS 0.1 2 2 1 2 1 2 33k R504 7 TRDR SBSO 74 SCOR to PCB,AC IN P103
TFON SCOR C494
1 2 1 2 1 2 120k FFDR 8 73
R516 R410 FFDR WFCK 0.1
14 VG C475 R411 R513 R514 2.2k 10k 9 FRON EMPH 72 2
1 1 22k 3.9k 1 1 1 FRDR 10 71
C477 12k C473 FRDR DOUT
15 FG C483 11 FFON MD2 70 R480 5D3
47/16V 220p 0.1 12 69 10k
16 TD 0.1 2 2 2 2 2 13 VCOO U402 C16M 68 1 2
14 VCOI FSOF 67
TEST FSTO 1
17 TG C472 5A5 15 CXD2545Q 66 4
C486 16 VSS FSTI 65 1
220p 47/16V TES2 VSS U411A P412
18 FD 17 TES3 XTSL 64 3 CLK
18 63 2 ZR-10P
19 SD 1 1 C487 GA5 19 PDO XTAO 62 DATA 10 DATA
VPCO XTAI C417
0.1 20 VCKI DA01 61 19p 7432
20 SG C418 0.027 21 60 2 1 BCK 9 BCK
1 2 10A2 2 2 1 2 22 AVDD DA02 59
5A5 23 IGEN DA03 58 4 LRCK 8 LRCK
1 2 R496 AVSS DA04 U411B XLTA
R417 24 ADIO DA05 57 6
10A2 2 6.8k GA5 33k 25 56 5 7 DEMP
R505 R424 R425 1 2 SRDR 26 RFC DA06 55 2 1
B P418
ZR-3P
U404A
TA8406F 3
10k
1
1.5k 8
2
6.8k
1 2 1
27
28
RFDC
TE
SE
DA07
DA08
DA09
54
53