Technics SLP 212 Service Manual

Page 1

ORDER NO. ADBB1232602

Service Manual

DIGITAL AUDIO

SPECIFICATIONS

I Audio

No. of channels:
Frequency response:
Output voltage:
Dynamic range:

S/N ratio:

Harmonic distortion:

Total harmonic distortion:

Wow and flutter:
Output IMPBdance:
Load impedance:

Headphones output level:

I Signal Format
sampling frequency:

I Pickup
Wavelength :

2 (left and right, stereo)
2-20,000 Hzi0.5 dB

2 V (at 0 dB)

96 dB

96 dB

0.003% (1 kHz, 0 dB)
000% (1 kHz, 0 (18)
Below measurable limit
Approx. 6000

More than 10 k0

15 mW max: 329 (adjustable)

44.1 kHz

780 anl

Technics

Compact Disc Player

SL-P212

Color

(S) . . .Silver Type
(K)...Black Type

Area
Country
Code Area Color
(E) Continental Europe (S) (K)

I General
Power supply: AC 50/60 Hz, 220 V
Power consumption: 11 W
Dimensions (WXHXD): 430 x92><274 mm
Weight: 3.6 kg

Specifications are subject to change without notice:
Weight and dimensions shown are approximate.

Matsushita Electric Industrial 00-, Ltd .
Central PO: Box 288, Osaka 530 '911 Japan

Page 2

I CONTE NTS

Page
ACCESSORIES DESCRIPTION OF FL PANEL ............................ 23
CONNECTIONS . . . , . SCHEMATIC DIAGRAM ............................. 24~30
PRECAUTION OF LASER DIODE .......................... 3 PRINTED CIRCUIT BOARDS ........................ 31~34
LOCATION OF CONTROLS . TERMINAL GUIDE OF IC's, TRANSISTORS AND DIODES... . 31
BASIC OPERATION ..... . WIRING CONNECTION DIAGRAM ........................ 35
SEARCH FUNCTIONS . .. . B, 9 TROUBLESHOOTING GUIDE .............. . . 36~38
HANDLING PRECAUTIONS FOR OPTICAL PICKUP 10 FUNCTIONS OF IC TERMINALS ........... . 39~44
INSTRUCTIONS FOR TRAVERSE OIL . . . 1O PACKING .......................... 45
DISASSEMBLV INSTRUCTIONS ....... 11~14 RESISTORS AND CAPACITORS. 46, 47
MEASUREMENTS ANDADJUSTMENTS , 15~19 REPLACEMENT PARTS LIST . .. I . . 47~49
NEW SERVO GAIN ADJUSTER ....... , . 19 EXPLODED VIEWS .................................. 50~53
BLOCK DIAGRAM 20~22
I ACCESSORIES
OAC power supply cord . , 1 USterec connection IRernole control OBatterIeS ............. 2

(SJA187) cable .................. 1 Iransminer ............ 1 (UM-4NE/2S)
(SJP2249-3) (EUR64766). . .BLACK

(EUR64767).. .SILVER

I CONNECTIONS

Turn power off on all components beIore making connections.

Rear panel
of this unil

(L) w

4- AC power supply cord AC outlet

(included)
g-«t

To CD" or AUX" (R)
terminals of the
amplifier

(L)

\

Stereo connection cable
(included)

(R)

Note:
The configuration of the AC outlet and AC power supply cord
differs according to area.

LUOKAN 1 LASERLAITE

Page 28

I TROUBLESHOOTING GUIDE

SL-P212 Operation Sequence Check Sheet

Play Operation Sequence

Power on

(with no disc loaded)

Forced traverse return

i

Disc detection

l

Stop

Disc loading

PLAY key pressed.

r. _
|
|
l
l
l
l
|
l
I
l
|
l
|
l

l

Laser diode comes on.

i

Focus pulls in.

i

Spindle motor starts rotation.

i

Focus servo operation

i

._36_

I._ '1 Disc tray closed.
I * Traverse servo operation
: Laser diode comes on. ¢
| * DSL (data slice) operation
I . r - I
I Focus pulled m' I Play operation i- -| *
I i I- - J I PLL operation
I Spindle motor starts rotation. I *
I * I CLV servo operation
l l (1 1T mode)
I Focus servo operation I
i l I y
l I
I Tracking servo operation I CLV 59' operaton
| (phase compare mode)
' i l
_1 l Traverse servo operation :
,__| + | Data demodulatormrcuit
- : operation
| DSL (data slice) operation :
: i '
. |__ _ Access control circuit
I PLL operation Op 6 r ati on
' i
|
| CLV servo operation ( STOP key pressed H-D
I (11Tmode)
1 Sta
l l p
l CLV servo operation
: (phase compare mode)
l l
: TOC data display
l i
L - Stop

l
g
i
3