Table of Contents
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DP-R792/R892/R4440
CONTENTS/ACCESSORIES/CAUTION
CONTENTS
ACCESSORIES. ......scsssessssesssseanesssenseessenseaseneecosenensesatenees 2
EXTERNAL VIEW : DP-R892 ..........:sssccscseeseserseseeres 3
2. Microprocessor : uPD75216ACW-B99 (ICS) ........... 11
EXTERNAL VIEW : DP-R4440 .........0::sscsccssserensesesetens 4
CONTROLS 'osescetesseeieheccecSiccecih,
1. Disc Cetection ..........csccceescseeeeeseettereenserseeeneane 13
;
14
1. How to remove the tray and tray panel......... 6
ADJUSTMENT ........:::ccccecscsesessesesenseesesensenescensunenenseans 15
2. How to remove the bottom plate................+ 6
PC BOARD (COMPONENT SIDE VIEW) .......:.0 17
3. How to remove rotary tray «0...
6
SCHEMATIC
DIAGRAD..........scsscssscceceeceresereeessnsennns 19
4. How to replace pickup ..........cssscsessensseeeees 7
5. How to mount rotary tray ........eeceeesseeteeeeeeees 7
BLOCK DIAGRAM ...ccesscsssesssssssecsscsssesscsssessssssssesssssseeess 8
SPECIFICATIONS ..........cscseessescseseteeseees BACK COVER
ACCESSORIES
(A70-0508-05)
CAUTION
¢ Note related to transportation and movement
Befor transporting or moving this unit, carry out the
following operations.
1. Turn the power ON but do not load a disc.
2. Wait a few seconds and verify that the display
a
a
BS
=
TRACK
NO.
e
7
8
9
170
ww
(11
12813
14
75
shown
appears.
17
2
3
4
5
moacd
i ot
16 17 18 19 B20
3. Turn the power OFF.
¢ Caution of the service manual
This manual is available for U.S.A. models, DP-
R792, DP-R892 and DP-R4440. Before using this man-
ual, please check model's name.
Control pcb ass'y
(X32) parts list is written the parts for all of 3 models.
Also refer to comparison table in schematic diagram.
Mechanism
X92-1610-10
X92-1610-10
X92-1610-10
Model name
DP-R792
Control pcb
X32-1900-12 (K,P)
'X32-1900-11 (K,P)
X32-1900-10 (K,P)
DP-R4440
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