Onkyo PL 33 Service Manual

Page 1

SERIAL NO. 3133

ONKYO® SERVICE MANUAL

LINEAR TRACKING DIRECT
DRIVE TURNTABLE
MODEL PL-33

TABLE OF CONTENTS

Item Page

Microcomputer operation

Adjustment procedures

Mechanismexpioded view

Exploded view

Component location

Printed circuit board view from component side
Schematic diagram

Packing view

Specifications

M-ILDVGIm-BKJM

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ON KYO®
AIIIIIII IIIIMPIIIIIIIIS

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MICROCOMPUTER OPERATION
0201 LM6405H-070

halo-E 1 2 3-0 EXIaI(800KH1
63 z 41 j-o Vm 5v
m 3 m pm 40 j-o ran/sm-
55 . 39 3-1: CUE
MUTING H i 0" 5 our PUT 33 3-0 SEARCH
REP._C 5 m '_ 37 3-0 HEN/STANDBY
IN PUT a
RESET °-{ 7 R51 E 36 |-o STARY PT.
RESET SW
°-C 5 :5 j.._o END FT.
0 m 4.. m-
SDEVEER o-{g ré 343-030 /17 (an: .0
(END) °-C 10 E g 33 21-41-57 (EJECT ADJ)
W n r- 32 j-o MEMORY LED
3
TONEAHM _r_-12 t 313-0 on oN/orF (H: moron) )
DfilVE a
-C 13 30 3-4 REP LED
021§~ 12
0213 C M 29
._ J2
-1: l5 3 28
l- sz ENDADJ
P/DUWN-C 5 3 7
DRIVE 127
-C 17 5 ~ 26
ozu~ A.
can -C is E 25 J2 D r
.1259 C
'-C 19 24 17cm
J250 3 LEAD IN ADJ
20 my 23
L 1251 A
21 vss 22
Pin Function
1 Connect the 800kHz oscillator Xtal.
2 Pins for electrical adjustment of stylus height; adjust stylus height when tonearm goes open to standby.
3 Open 1263 to lower the stylus height 1.9mm.
4 Open 1264 to lower stylus height 3.8mm.
Open 123, 264 to lower the stylus height 5.7mm.
Open 1263 to lower the stylus height 7.5mm.
5 Pin for muting on/off; low is on, hight is off.
6 Pin for interruption of repeat operation.
7 Pin for reset;low for 80m sec when power is turned on.
8 Determines whether or not tonearm is above the stanolby position; low when arm is above the standby position.
9 Sensor input;low to operate the air drive motor, high to stop the arim drive motor.
10 Pin for the record end detection signal from the sensor; low causes the tonearm to return.
11 Determines whether or not the tonearm is open or standby.
12
ii Pins for the tonearm drive (horizontal movement) pulse motor
15
16
i; Pins for the tonearm drive (vertical movement) pulse motor
19