Kenwood DP-R792 User manual

DP-R7s2/Reg2/R444g
“ENWOOD
SERVICE MANUAL
TEESE
ELT.
Spe
la
S
ates
Dressing
plate
Panel
ass'y
{A01-1912-01)
(BO3-2688-03)
{A60-0177-02)
KENWOOD
Knob
Panel
ass'y
(TRAY)
Escutcheon
(K29-4140-04)
(A29-0307-02)
(B07-1980-04)
FO" CAUTION ATTENTION
(ASK. ALUCTARC MC «| BSOUE DEON UCLA
Pasi id as RSTn
(BR ty
SRETSEDES
Phono
jack
({2P)
Miniature
phone
jack
AC
power
cord
Foot
;
(E13-2208-05)
(E11-0188-05)
(E30-2689-05)
(J02-0366-15)
In
complicance
with
Federal
Regulations,
following
are
reproduc-
Photo
is
DP-R792.
tions
of
labels
on,
or
inside
the
product
relating
to
laser
product
safety.
_
KENWOOD-Corp. certifies this equipment conforms to DHHS |
Regulations No. 21 CFR 1040. 10, Chapter 1, Subchapter J.
DANGER : Laser radiation when open and interlock defeated.
AVOID DIRECT EXPOSURE TO BEAM.

DP-R792/R892/R4440
CONTENTS/ACCESSORIES/CAUTION
CONTENTS
ACCESSORIES. ......scsssessssesssseanesssenseessenseaseneecosenensesatenees 2 CIRCUIT DESCRIPTION
CAUTION saiscciscvscvsvesstesecscestncveh savinsvectedstttocestestnsactedssanees 2 We TSE. MOC iacsscsscessnuseccecsesceivdeeddqctececsiesesceairesebstieter 9
EXTERNAL VIEW : DP-R892 ..........:sssccscseeseserseseeres 3 2. Microprocessor : uPD75216ACW-B99 (ICS) ........... 11
EXTERNAL VIEW : DP-R4440 .........0::sscsccssserensesesetens 4 MECHANISM OPERATION DESCRIPTION
CONTROLS ‘osescetesseeieheccecSiccecih, Sed cclee cecenealetereetbintaacieeeee 5 1. Disc Cetection ..........csccceescseeeeeseettereenserseeeneane 13
DISASSEMBLY FOR REPAIR ; 2. Open and close Operation... 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 EXPLODED VIEW (MECHANISM) ...........cscssecsees 23
5. How to mount rotary tray ........eeceeesseeteeeeeeees 7 EXPLODED VIEW (UNIT) qu... cscssesessseesensseerensnens 24
BLOCK DIAGRAM ...ccesscsssesssssssecsscsssesscsssessssssssesssssseeess 8 PARTS ‘LIST: caciscececveteoteteatieasteeines Sicvisiteissauiantacas 26
SPECIFICATIONS ..........cscseessescseseteeseees BACK COVER
*
Refer
to
DP-M991/
M6630
/
M7730
service
manual
(B51-4281-00)
and
DP-7030
(B51-4244-00)
if
need
circuit
de-
scription
CXA1571,
TC9237, (DP-M
serise} CXA13720,
CXD25000
(DP-7030).
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

DP-R792/R892/R4440
EXTERNAL VIEW
\
Metallic
cabinet
Dressing
plate
Escutcheon
(FF/REV)
Escutcheon
(SKIP/OPEN/CLOSE)
(A01-1926-01)
(B03-2687-04)
(B07-1976-03)
(BO7-1978-03)
KENWOOD
Knob
(Button)
Panel
(TRAY)
.
Panel
Escutcheon
(STOP/PLAY/PAUSE)
(K27-2004-04)
{(A29-0184-02)
(A60-0176-02)
(BO7-1977-04)
Phono jack (2P) Miniature phone jack AC power cord Foot
(E13-2208-05) (E11-0188-05) (E30-2689-05) (J02-0366-15)
|
Photo
is
DP-R892.

DP-R792/R892/R4440
EXTERNAL VIEW
Metallic
cabinet
Dressing
plate
Escutcheon
(FF/REV)
Escutcheon
(SKIP/OPEN/CLOSE)
(A01-1909-01)
(BO3-2686-04)
(B07-1976-03)
(B07-1978-03)
> PLAYER. OP Raa
‘? ay cee acmeccs
wBosooscosdbsoowoo sd)
§- 0
§ a 2D
Seog s cod
Pri 21g
Knob
(Button)
Panel
Panel
(TRAY)
Phone
jack
Escutcheon
(STOP/PLAY/PAUSE)
Knob
(K27-2004-04)
(A60-0175-02)
(A29-0184-02)
(E11-0208-05)
(BO7-1977-04)
(K29-3632-04)
Phono jack (2P) Miniature phone jack AC power cord Foot
(E13-2208-05) (E11-0188-05) (E30-2689-05) (J02-1034-05)
Photo
is
DP-R4440.

DP-R792/R892/R4440
CONTROLS
CHECK key
ce ee
EDIT-1 key) | E=H— EDIT-2 key
P-MODE key —1 |__ CLEAR key
TIME DISP. key ee S| REPEAT key
RANDOM key DISC SKIP key
OPEN/CLOSE key
Disc selector keys (DISC 1~DISC 5)
Remote
control
Search
keys
POWER
switch
Rotary
tray
light
sensor
Skip
keys
PHONES jack
PHONES
LEVEL
control
knob
PLAY/PAUSE key
Play mode indicator
TRACK mode
ROM
more
EDIT-1
indicator
_
REPEAT
indicator
[P.CJindicator
RANDOM
indicator
EDIT file indicators
pi
gtegts.
(ieee
es
eee
SINGLE
Time)
|
Play
indcator_|
AS)
Fane
No
IroTaL
TimE!;G
7
8
9
10)
aus@
—beee
eee
I
ee
i!
1
indicator
a
—_
a
w,
w
(11
12
13
14
15
=
Sie
A:
A:
!
Fria
I ot: i=}
Disc No. indicators EDIT-2 indicator
TRACK
NO.
indicator
Music
calender
(1~20)
Time counter,Program No.
SINGLE TIME
TOTAL TIME
Fig. is DP-R4440.

DP-R792/R892/R4440
DISASSEMBLY FOR REPAIR
* Remove the metallic cabinet before the follow-
ing procedure.
1. How To Remove the Tray and Tray panel
1. Slide the fever frontwards (@) until the tray comes
out.
2. Pull the tray out fully.
3. Remove the tray pane! upwards (@).
2.How To Remove the Bottom Plate
Remove bottom plate screws (@), rear panel screws
(€@) and chassis screws (@).
3.
How
to
Remove
Rotary
Tray
°
1. Remove clamper screws (@).
2. Loosen roller screws ( @) and turn them to free the
tray.
3. Remove the rotary tray upwards ( @).

3. Turn the stopper (@).
5. How to Mount Rotary Tray
1.
2. Move the slide gear frontwards (@) and fix the lock
3. Insert the lock lever pin to the groove of the chassis
4. Fix the hardware with screws (@).
DP-R792/R892/R4440
DISASSEMBLY
FOR
REPAIR
4. How to Replace Pickup
* Remove the rotary tray before the following
procedures.
1. Short the short lands (@).
2. Remove 2 connectors (@).
4, Remove the pickup upwards (@).
Check the pickup mechanism is at down position
and meet the mark of the gear to the boss of the
pickup mechanism up/down gear (@).
lever to slide gear (@).
(®)

BLOCK DIAGRAM
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DP-R792/R892/R4440
CIRCUIT DESCRIPTION
1. TEST MODE
* Setting the test mode
The microprocessor built in the unit can be put to
TEST MODE by just short-circuiting the TEST pin #5 oe
_ and #6 when set to power ON.
DP-R792/R892/R4440 is available to set to each test
mode by UP key or DOWN key as follows.
1-1. Key and functions vaild in test mode
STEP Description
1 STOP MODE after setting TEST MODE TRACK
: |
Li |
2 Turn Rotary-tray with opening it, and shows time of tray-open. TRACK NO.
aie
uc
3 Turn Rotary-tray with closing it, and shows time of tray-close. TRACK NO.
mt 2
| a |
4 (1) FOCUS SORNVO: ciccecebevcds Sivivcecliscsciescasatenssdectorabaceseccstec ON. TRACK NO.
(2) Tracking servo met
(3) FECA SOMNVO: eeccecesscctiva devsncnetaveevaneioandeas lonsiovsaseniussens Lio
1
& Time lights
5 CU) STACKING sctarivcsscsteicaede Bata deladeaine OFF. TRACK NO.
(2) Focus servo mac
(3) Tracking SOPVO .......eesesssseessesecsesseeseecerssnesrenerenee OFF. LI
(4) Feed S€rV0 w...escsscseesseees tds taanesstenrasitaknhassieseshiat OFF. Ui lights
6 Same step "4". TRACK NO.
mt
“tt
L
> time lights
L-—_}-— , ——_
7 Confirm position of start limit switch, shows time of setting it to on. TRACK NO.
flog
ee |
_—
8 | Set it to program mode, playback Tracking No. 7, 8 and 6 (High-speed).
= ee!

DP-R792/R892/R4440
CIRCUIT DESCRIPTION
;
INo,
Input
key
|
Track
No.
display
(1)
FOCUSING
SEFVO
uu...
csecctseseeseneees
ON.
TRACK
NO.
(2)
Tracking
SEPVO
vesessssssesssssseeessseess
ON.
fi
cd
(3)
Feed
SErV0
oe
cccccesseseescsesesseseeee
ON.
Li
!
b» (PLAY) lights.
(1)
FOCUSING
SEFVVO
ue
ccssseesesesesteseees
ON.
TRACK
NO.
(2)
Tracking
S€IVO
wecscssssessecseesees
OFF.
mM
(3)
Feed
SErV0
wc
ccscceseseseeeseeteens
OFF.
ul
(tl) Pause lights.
In
STOP
mode.
Disc
is
loaded.
TRACK
NO.
i i
|
uso]
4 | DPR (UP) Change TEST mode (UP).
keq (DOWN) | Change TEST mode (DOWN).
>> In the PLAYBACK mode, jumps the pickup outwards (16 tracks).
In the STOP mode, the pickup slightly outwards.
7\| 44 In the PLAYBACK mode, jumps the pickup inwards (16 tracks).
In the STOP mode, the pickup slightly inwards.
8| OPEN/CLOSE} When the tray is opened then track No. 7, 8 and 6 (High-speed) are programmed
and playback. TEST mode is canceled.
9 ; DISC SKIP In SKIP mode.
10} P-MODE Track No. 7, 8 and 6 (High-speed) are programmed and playbacked.
TEST mode is canceled when pressing it again after playback.
11| REPEAT The tray OPEN / CLOSE operation is available without canceling TEST mode.
12] TIME DISP Turn ON / OFF the FL display.
14) SPEED* Set the port condition to High-speed mode, and set it to normal speed when pre-
ssing SPEED key again.
15] DISC Shows time of tray-rotation.
SELECTOR AT). cesas ssceveeve casas Clockwise a turn time.
(2) wu. Counterclockwise a turn time.
*DP-R792 only
10

DP-R792/R892/R4440
CIRCUIT DESCRIPTION
2.
Microprocesseor
:
uPD75216ACW-B99
(IC5)
2-1. Terminal connection diagram
,
SENSE
SOCK
~ SUBQ
=>
SLTSW
RENCN
SCOR
FOK
>
GFS
OPNSW
CLSSW
> HY
U
PS¥ 5
DOWNSW
BUSY
SDATA
DSENSE
>
own nt OD oO Se BW TO Fe
a
fom]
— —
Co
RANDM)}{ TIME _ep1T1)}{ED172
12
uPD75216ACW-B99
PSENSE 20
KD0 94
KDI
KD2
93
mv)
8G
|
|
|
|
prom
e
Y
CS
KDO.
KDI.
~=s«KD2.—Ss«KD
DATA 95 40 106
XLT 96 39 RESET
CLK RSW
Se a ee 38 >
DIRC
<——— 2 37
SPEED
a
4. 2342 >="
Vss
11

DP-R792/R892/R4440
12
CIRCUIT DESCRIPTION
2-2. Explanation of terminals (uPD75216ACW-B99)
Pin No. Pin name 1/O Function
Signal detection terminal for SENSE signal from Digital Signal Processor
1~4 Sd-a oO Segment (d ~ a)
5 SENSE |
6 SQCK (0) Clock output of Q data input
7 SUBO I Q data input
8 SLTSW I Start limit switch for pickup
9 REMCN | Remote contro! input
[10 SCOR l SCOR input of Q data
~~ ~| FOK | Focus OK signal input
12 GFS I Spindle lock
‘3 OPNSW I Tray open switch
14 CLSSW I Tray close switch
UPSW | Mechanism-up switch
DOWNSW | Mechanism-down switch
BUSY
VO
18 SDATA
VO
19 DSENSE
20 PSENSE
System contro! signal (BUSY)
System control signal (DATA),
Disc sensor
Disc position sensor
Key input (Obit ~ 3bit)
21 ~ 24 KDO ~ 3
25 DATA ie) Data signal to signal processor
26 XLT ie) XLT signal to signal processor
27 CLK O Clock signal to signal processor
28 DIRC O Control signal for jump brake
30 x1 | Clock input (4.23MHz)
X2 ] Non-connection
33,34 XT1,2 I Non-connection
35 LDC O
36 RMUTE O Analog mute
37 MUTG O Digital mute
ee 38 RMSW Oo Rotary tray motor speed-down
39 RESET \ Reset signal input
40 ~ 49 10G ~ 1G Oo Display grid (10G ~ 1G)
50 LMRVS 0 Tray motor 1
51 LMFWD 0 Tray motor 2
52 RMRVS oO Rotary motor 1
53 RMFWD ie) Rotary motor 2
54,55 SLk 16) Non-connection
| 56 VLOAD ld VLOAD input (-30V)
57 VPRE | VRE input (~5V)
Sh ~ j O Non-connection
61 ~ 63 Se~g Oo Display segments {e ~ g)
64 Vop - Power supply (+5V}

DP-R792/R892/R4440
MECHANISM OPERATION DESCRIPTION
Feed
motor
(F.M)
Disc
motor
(D.M)
Pickup
(P.U)
Limit
sw
($1)
Rotary-tray
motor
(R.M)
Photo diode (D1)
MD
WN $3
STOP
sensor
(PH1)
UP/DO'
sw
(S3)
Dise sensor (PH2)
Tray OPEN/CLOSE sw (S2)
=
2
°
ec
uo.
Loading motor (L.M)
Fig. 1
1. Disc Detection
lf rotary-tray motor (RM) is turnning clockwise, the PH1 (PHOTO Interrupter) Rotary-tray motor (R.M)
tray rotary turns same direction. Confirm check of disc |
presence and disc number by photo transistor (PH2).
Stop position is detected by photo interrupter (PH1).
Disc presence Disc No.
Fig.
2
13

DP-R792/R892/R4440
MECHANISM OPERATION DESCRIPTION
2. Open and Close Operation
lf tray loading motor (LM,M4) turns counterclock-
wise, the slide gear moves frontwards with lock lever
fixed the rear of the tray. And then tray open/close
switch
(S2)
is
set
to
open
mode.
Lock
lever
$2 Tray OPEN/CLOSE sw
L.M
loading
motor
(L.M)
Slide
gear
Fig.
3
lf tray loading motor turns clockwise, the tray
moves backwards on the way with the lock lever but
slider gear goes on backwards and engages for mecha-
nism up/down gear. Slide gear moves and the loading
motor (S3) until pickup mechanism is at fully up or
down position.
Pickup mechanism UP/DOWN gear
$3 MD UP/DOWN sw
Fig. 4
14

DP-R792/R892/R4440
ADJUSTMENT
SETTING SETTING SETTING
Short~cireuit pins
TEST and turn the
power on to enter
the test mode.
Press the MANUAL S.
key P)to move th
pickup outwards.
ALIGNMENT
POINT
ALIGN FOR
On the power from
0.1 to 0.3m¥, when
the diffraction
grating is correct)
aligned with the RF
level of 1.0Vp-p
or more and
the TE (servo open)
level of 1.5Vp-p
or more, the pickup
is acceptable.
as ITEM
LASER POWER
TRACKING ERROR
BALANCE
Apply the sensor
section of the optical
power meter on the
pickup lens.
emits light. Then,
confirm that the
display is” 05”.
Turn power switch
off and set the
unit to test mode
again.
Press the Dp key
to open the tray.
Load a test dise and
press the DW key.
hen press the CHECK
key. Confirm that
the display is “05”.
Press the PLAY
key. Confirm that
the display
is” 05".
Connect an oscilloscopd
as follows.
CH1: RF (CN9-1)
CH2: TE CCN9-6)
Symmetry between
upper and lower
or DC=0+0.05V
Test dise
Type 4
Connect an oscilloscope
as follows.
CH1: RFCCN9-1)
CH2: TECCN9-6)
Opt imun
eye pattern
Test disc
Type 4
FOCUS ERROR
BALANCE
Test dise
Type 4
Apply signal of
1. 0kHz, 0.1V¥rms to
CN9 pin 2-8.
Test disc
Type 4
Apply signal of
1.0kHz, 0.1Vrms to
CN9 pin 5-6.
Two VTVMs should read
the same value.
Connect a LPF to CNQ Press the PLAY
key. Confirm that
the display
is” 05".
FOCUS GAIN
an oscilloscope
or two AC voltmeters.
Press the PLAY
key. Confirm that
the display
is” 05”.
Two VTVMs should read
the same value.
Connect an LPF to CN9
TRACKING GAIN
an oscilloscope
or two AC voltmeters.
(Note) Type 4 disc: SONY YEDS-18 Test Disc or equivalent.
LPF: Around 47k2+390pF or so.
Steps 1~5 are in Test Mode.
(a) Laser Power
@
(d) Focus Gain and Tracking Gain Adj.
0.1~0.3mW Focus gain Adj.
Tracking gain Adj.
Optical power meter
15
DP-R792/R892/R4440
ADJUSTMENT
CH1 RF
1.0V/div
0.1V/div
CH2 only
(2usec/div)
2.0V/div
j~—0(v)
RF signal
0.5V/div
CH2 E.Spot
. CH2 T.Error
®@ RF signal and E.Spot signal in test mode (PLAY).
® if the diffraction grating has been adjusted properly,
the influence of triggering is observed on the E.Spot
waveform of approx. 18us after RF signal, in the form
of a projection.
{
AC coupling for
@ RF signal and T.Error signal; in test mode (Focusing
ON). (Disc type 4)
@ Adjust T.Error so that the waveform is symmetrical
above
and
below
OV.
(VR2)
@ RFF signal in test mode (PLAY).
@ Perform the tangential and focusing offset adjustments
so that each of the center cross points are focused into
one. point on the display. The crossing points above
and below the center shall also be displayed clearly.
16

PC BOARD (COMPONENT SIDE VIEW )
FB S30 2 =6FF 528
m
‘
[ea] 0 N x<
SYSTEM
CONTROL
LINE
OUTPUT
Oscilloscope
10
©9
©
OOOO
® rs) e & o a
. e
E ®
2
&
4 © ©
—_
2
-
cy
a a
a
c & oO 2 oO a
2
®
—
iS
>
a
>
io 2 i}
H
{S) a be 6 “ io) = ps no] Cc a
(0) °
i= &
oO
a . fe) £ 5
Co) o 3
ro)
3
uw
=~
°
—
: Optimum eye pattern
AC voltmeter
(d) Focus gain
:Two VTVMs should read
the same value.
AC voltmeter
Fs
OIOISIOISICIONO)(C}
(d ) Tracking gain
Two VTVMs should read
the same value.
18
Refer to the schematic diagram for the values of resistors and capacitors.
17

ie)
[>
MECHA. ASS'Y(CDM-20)
(X92 -1610-10)
| PHOTO
| | TRANSISTOR
Es
TRAY OPEN
/CLOSE SW
MD UP/
DOWN SW
T25-O0011-05(KSS~- 210A)
——— =
| Focus COIL
—l
PICK UP
es er se
-
FEII()
ICi~4 + RC4565D or NUM4565D re2I®
Ics : pPD75216ACW- B99 end]
1c6 > NJM4558D TE2IG)
Ic7 ‘ : CXAI372Q TEI)
Ica + CXAISTIS £ s.s1@
1c9 : CXD2500AQ +5V1@)
Tc 10 > NJM4565L udjQ)
Tcl : TA8409S
1c 12 : TC9237N
rct3 1 LA65IO
1c14 1 TAS4I0AK or LAGSIO
2SA1534A 2SD1266°
2SA954 ;
2SC1923
28C2878
8 [3
c Be
()
(X32- ) (B/7) (X32-1900-10) (A/7
DP-R4440
DESTINATION
UNIT NAME | F/7 R1231C33 W176) W182
COUNTRY ABE | sss cneoe eis
Us-Re [ek X32-1900-10]YES| YES Y YES
CANADA] P|
|
UNIT
NAME
|
F/7
DISC
MOTOR
DRIVER
FEED TRAY MOTOR
Belt DRIVER
9.7V
9,.0V
R123 W1761W182| At
sep eeeslel = belelele [le
DP-R792
SES UNAURN UNIT NAME | F/7 Cc
X32-1900-12 YES YES YES
[eavaoay * |
PHILA)
PHI(K)
(X25-)
{C/3)
1W176]W182] At . |
, '
wy
[civ Gan sw
O n®, Oe an man)
o =
SaRe eG EG EE aS
RUS nf Sn
x pesleite
Cum sor oem
R132 5.6K
RIO
RIO2 130K
RIOa
100K
O.7VLOV)
NORMAL /HIGH
aes 6.8K
C69 150
cg
{Bottom View)
DIGITAL SIGNAL
PROCESSOR
{Bottom View)
SERVO IC
~10V(~2.0V)
Dvcc
Ov (4.5V)
Ce
5.0V.
°
x
=)
fe ee ee ee
10K
[SPEED INV] INV
CXA13720,
DTC124ES TAS409S
2SA1426
2SD1944.
—«
UN4212_
NJM4558D
-
NJM4565D
RC4565D
LAG510.
CXA1871S
CXD2500AQ
2SC1740S
2SC3311A
TAB410AK
c
5
8
.
{

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©) tem
°
re
a
x
1c9
(Bottom View)
DIGITAL SIGNAL
PROCESSOR
8 3
OL] we] nr] of wo] s] mf wn
LL
RIZ2 5.6K
Frere rere!
Some oon,
o
ze |
8.2K
ov (4.5V)
°
a
a
o
3
= yd
Ww
(J cimit s
OPEN SW
(©)| cLosE sw (}] DowN sw
G)| TRM(+)
(a)| sGnb {o)} +5V
®] o.m
e-an
2s 2 or
TRAY MOTOR
DRIVER
HERE
ianersrteae
O O
>o >= >>
oa an oe = ova
me oe
eae “ ov
Ici
ROTARY MOTOR
DRIVER
0S On OD <B<oO <O|
waaaa
o ot
<
FoS0
rene
SSRN Paes FP
CIOS 0.01
R20 8.2K
ma R12 RIG C22 470P
332
UPD75216ACW-B99 NJM4565L
=
5
& 88
se
=i [I tt} —
Ta aS SEY FRE ar y0 :
am |
||
|
¢ DC voltages are as measured with a high
impedance voltmeter. Values may vary slightly
due to variations between individual instru-
ments or/and units.
0.01
c96_ 0.01
co7
aaa
|
93. 0,01
694. 0,01
t——
95, 0,01
ll
|
:
| (x32- ) *(F/7)
CAUTION : For continued safety, replace safety
critical components only with manufacturer's
recommended parts (refer to parts list), A\ Indi-
cates safety critical components. To reduce the
risk of electric shock, leakage-current-or resis-
tance measurements shall be carried out (ex-
posed parts are acceptably insulated from the
supply circuit) before the appliance is returned to
the customer. :
es SIGNAL LINE
nn GND LINE
+B LINE
ee eee ee es eee ee — 8B LINE
(X32— )(C/7)
ny ee
Sees ee
fe) eXexeToroxeXo)
WH3
|
By
f
a
|
lies
|
we
OG-—
—
—
—-
—
—
R54 330 «D7
D
looK
rE (X32- )(D/7)
[HEADPHONE | |
J3
O
G
SYNCHRO OUT
[xs]
Y22-2840-1!

<
|
\e)
a
| Limit sw
@)| OPEN sw
(©)| CLOSE sw
()j uP sw ©} oown sw
(S)| Pst
{a)] +5V
(X32 — )(C/7)
=
|
|
|
aL
|
0.01
©EOdO
se De
—oue
|
= q
CNIO
ASSN
Ror"
ik
FL Coca
Coca
pa a ap
t/t
_
1.3K
3.9K
nities
le
fos
re
|
,
al
Het
(2
aie
O
(X32— ) %(F/7)
Fase
ean
cag Kay
nm OlCXCKS)
Bm
|_|
Cet PD (x32- )(D/7)
|
PAY vin
=)
ak
a
0,01
0.01
c93_ (0,01
c94
c95_ 0,01 c96. 0.01
co7
ROTARY MOTOR
DRIVER
a
a
a
cI
a
a
a
RI27 10K
035
037
051
Bae
fe
pe
See
ee
edn
SH
|
[ee
ie
eee
gs
ai
go
cy +5V [+5v_ave |
> > D
a
nq
23
on
* rsa
2.2K
RO
10K
Ci7
220P
1K
R54 330 o7 [busy]
o
|
|
or
le
reas
}
smggrer
R45 2.4K
2206.3
Rt
OK
| (X32— (6/7)
cNi
oe Q)
ats
ae
CPAP
ue
rere
rose
a) BEeS
ae
Lumen
So
rs
O)
Rech
:
a
ra
_ AUDIO OUT
ci2
lo0oP
W4
|
kk
».-
M4565L
;
e
DC
voltages
are
as
measured
with
a
high
CAUTION
:
For
continued
safety,
replace
safety
impedance
voltmeter.
Values
may
vary
slightly
critical
components
only
with
manufacturer's
due
to
variations
between
individual
instru-
recommended
parts
(refer
to
parts
list).
A
Indi-
ments
or/and
units.
cates
safety
critical
components.
To
reduce
the
tisk of electric shock, leakage-current or resis-
tance measurements shall be carried out (ex-
posed parts are acceptably insulated from the
supply circuit) before the appliance is returned to
the customer.
nes SIGNAL LINE
———— es GN LINE
ee ee es ee ee — 8 LINE
Qi
a2
a3
04,8
as.
06,13
Q7,17
a9, 14~16
Qio,t
+B LINE
(K,P) TYPE
ACI20V 60Hz
D2,20
DII~I7
DIs.,19
D2t,22
028
b29
032
1 28A1426
+ 28C1923(R,0)
1 2801266
: 2SAI534A
: 284954 (L,K).
:YN4212 or DTCI24ES
: 28D1944(u,K)
+ 28C3311A(Q,R) or 2SC1740S(Q,R)
: 28C2878(B)
D1,3 ~ 10,30,31,33,34: 1SS133 or HSSIO4
1 ROS.1NS(B2) or HZS5.1S(B2)
> ISSI31 or HSSIOGA
+ ROS.6ES(B2) or HZS5.6ES(B2)
+ ROG.8ES(B2) or HZS6.8N(B2)
023 ~27,35~38,51,52 °1SRI39-100 or S5688B
: RO3ZOES(B) or HZS30N(B)
+ B30-1012-05
» RD2.7ES(B2) or HZS2.7N(B2)
> W02-0975-05
KEY SW No.
S2i
er
ot
$29/S30
*at
REMOTE 6
SENSOR
Dl) FIPIOBBM6
k
REPEAT
b
cs iJ0 |} ranoom Be | track No.
‘= vt a a
(X32- )(E/7)
Y22-2840-10
k 2e,|39 ge si
' SINGLE | k
DP-R792/R892/R4440
(pene: )
£28 DP-R892DP-R792,
[3] [4]
S$15/S35 SI7/SI6
on
PLAY PAUSE
S$31/S832 $33/S834
oe
kerak
TOTAL
{TIME
leo
7f
|
8b
9f
10;
|
2
fiie
129/13¢
149
15k)
fig fb
17h] 184d 19h 201
DP-R4440/DP-R892/
DP-R792
(kK)
NaN) 0]0)B)

_
DP-R792/R892/R4440
DP-R792/R892/R4440
|
|
EXPLODED
VIEW
(MECHANISM)
|
er
B
DP-R792 FRONT
POWER
EDIT
SPEED
!
2 3
4
5
DISC
SKIP
{si
]
[$12]
$14]
$35]
$16]
Sis]
i
P-MODE
CHECK
CLEAR
ED
|
<b>
KK
bbl
OPEN/CLOSE
2
[s2
[$4]S9
]
[s2t]
'
TIME
DISP,
REPEAT
|
[s3]s5[$io]
STOP
PLAY
/
PAUSE
|
mon
(S33)
Ww
DP-R4440/R892/R792 (2/2)
|
23
Parts
with
the
exploded
numbers
larger
than
700
are
not
supplied.
DP-R792/R892/R4440
y
(X25 1B/:
865
“at
o
44 w
59
60
50 (
A
@2.6x8
(Bi- Top)
:N89-2608-46
K
1
NI9
-
1251
-04
B
@3x6
(Bi-Tap)
:Ne9-3010-46
@
:
NI9
-
1274
-04
C @3x8 (Bi-Top)BLK :N89-3008-45 M 1 N39 - 2025 -46
D @3x8 (Bi-Top) © :Ne9-3008-46 @ 1 N89 - 2606-46
6 1 NO9- 1522 - 05
(Fd 1 NO9- 2627 - 05
© _ 1 NO9 = 2720 - 05
CH) 1 NO9 - 2769 -05
(J) 1 NOS - 2817 -05
ce a a i PR eI a ae gn a EN ene, 4 22
EDIT-1 EDIT-2 orsc 2 OISsc3 DISC 4 DISC 5
orsci
meen
(al
©!
|
gettetietien
BAY
BE
P-MODE CHECK CLEAR Al | ad b> Kid Do DISC SKIP OPEN/CLOSE
[s2[s4] [$29] S27|s26|s24] [s22] [s2i]
STOP PLAY/PAUSE
(PLT.
os
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
DP-R4440 ONLY
7I7
&
OP -R4440 /R892 FRONT
24