Kenwood DPC-781 User manual

PORTABLE CD PLAYER
DPC-781/782/981
SERVICE MANUAL
© 1997-10/B51-5379-00 (K/K) 3176
Format
System..............................................................................................................................................................Compact disc digital audio system
Laser......................................................................................................................................................................................Semiconductor laser
Audio
Frequency response...........................................................................................................................................................20 Hz ~ 20 kHz, ±3 dB
Headphone output (16 Ω, 1 kHz).................................................................................................................................................10 mW + 10 mW
(Headphone output level / impedance..................................................................................................................................max. 450 mV / 2.2 Ω)
[For CHINA and Duty Free Shop in JAPAN]
Digital output optical..............................................................................................................................-21 dBm ~ -15 dBm (wave lenght 660nm)
[For other countries]
LINE output level / impedance.......................................................................................................................................................550 mV / 702 Ω
Power supply
External DC supply ............................................................................................................................................................................DC 4.5 ~ 6 V
Rechargeable batteries............................................................................................................................................................................DC 2.4 V
Commercially - available alkaline batteries.................................................................................................................................................DC 3 V
Battery life (continuous playback) Repeat playback stops after 16 times.
(Figures inside parentheses are the values when D.A.S.C. is ON.)
Commercially-available alkaline batteries (LR6 / AA) x 4 ....................................................................................................Approx. 40 (34) hours
Commercially-available alkaline batteries (LR6 / AA) x 2 .................................................................................................Approx. 18.5 (17) hours
Rechargeable batteries (NB - 130) x 2...............................................................................................................................Approx. 9.0 (8.0) hours
With 2 commercially-available alkaline batteries and rechargeable batteries...................................................................Approx. 27.5 (25) hours
Dimensions (W x H x D)........................................................................................................................................133.6 mm x 26.5 mm x 151.8 mm
Weight (net).........................................................................................................................................................................................270 g (9.5 oz.)
SPECIFICATIONS
1. KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without
notice.
2. Sufficient performance may not be exhibited at extremely cold locations (where water freezes.).
NotesNotes
* Refer to parts list on page 15.
In compliance with Federal Regulations, following are reproduc-
tions of labels on, or inside the product relating to laser product
safety.
KENWOOD-Crop. certifies this equipment conforms to DHHS
Regulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J.
DANGER : Laser radiation when open and interlock defeated.
AVOID DIRECT EXPOSURE TO BEAM
Front glass
(B10-2388-04)
Plastic cabinet *
(A02-)
Chassis
(A10-3391-01)
DC jack
(E03-0355-05)
Cover Assy *
(F07-)
Knob
(K29-6787-04)
Knob
(K29-6785-03)
Knob
(K29-6783-03) Knob
(K29-6789-04)
Variable resistor
(R31-0090-05)
Miniature phone jack *
(E11-)
Ecctric circuit module
(W02-2527-05)
Miniature phone jack
(E11-0371-05)
Miniature phone jack
(E11-0278-05)
Escutcheon *
(B07-)
Knob
(K29-6788-03)
DPC-781/782/981(K)1P(98.4.2423:08 y[W 2

DPC-781/782/981
2
CONTENTS/ACCESSORIES
Stereo headphone (1)
(W01-0923-05) DPC-981 M type
DPC-781 M type
DPC-782 X type
Stereo headphone (1)
(W01-0924-05) DPC-782
Cassette adaptor (1)
(W01-0922-05) DPC-782
Car battery adaptor (1)
(W01-0921-05) DPC-782
AC plug adaptor (1)
(E03-0115-05) M type
Rechargeable battery (2)
option : NB -130
(W09-1237-05)
Remote control (1)
(A70-1171-05) DPC-981 M type
DPC-781 M type
(A70-1190-05) DPC-782 X type
AC adaptor (1)
(W08-0658-05) E type
(W08-0659-05) T type
(W08-0660-05) X type
(W08-0667-05) M type
(W09-1251-05) K, P type
Remote controller assy (1)
(A70-1037-05) DPC-782
DPC-981 K,P type
Audio cord
(E30-2782-05) DPC981 T,E type Battery (1) DPC-981
Stereo headphone (1)
(W01-0946-05) DPC-981 M type
(W01-0947-05) DPC-981 K,P type
(W01-0954-05) DPC-981 T,E type
SPECIFICATIONS.........................................Top cover
CONTENTS/ACCESSORIES ......................................2
ADJUSTMENT.............................................................3
PC BOARD ................................................................. 5
SCHEMATIC DIAGRAM ............................................. 7
EXPLODED VIEW .....................................................13
PARTS LIST...............................................................15
Accessories
CONTENTS
AAA
(–)
DPC-781/782/981(K)1P(98.4.2423:08 y[W 3

DPC-781/782/981
3
ADJUSTMENT
1. Test Mode
1-1 Setting the test mode
This model can be set to the test mode by shorting
the test-land of the X32 board.
START
Turn on lid
switch
Is test land
shorted?
Test mode pro-
cessing
Is key pushed?
Track No. "01"
is displayed.
TEST MODEYES
NO
NO
See following table.
Normal operation
No. Mode Key Name Function TRACK No. display
105 PLAY/PAUSE
(6)
1. Focus servo.....................................................................................................ON
2. Tracking servo.................................................................................................ON
3. Feed servo......................................................................................................ON
Absolute time at position of limit SW is displayed in time area, then play is started.
05
After 1, 2 and 3 are fin-
ished, track No. played
currently and its play
time are indicated.
203 UP
(¢)1. Focus servo.....................................................................................................ON
2. Tracking servo...............................................................................................OFF
3. Feed servo ....................................................................................................OFF 03
3 01 STOP
(7)
1. Focus servo...................................................................................................OFF
2. Tracking servo...............................................................................................OFF
3. Feed servo ....................................................................................................OFF
✜ Test mode can be can celled while pressing the STOP (7) Key in 01 mode. 01
4While pressing the
P. MODE/SEARCH Key,
turn the AC ON
All LCD is turned ON for 2 seconds.
ó
All LCD is turned OFF for 2 seconds.
ó
Returned to normal mode.
—
1-2 Key and functions avild in test mode
DPC-781/782/981(K)1P(98.4.2423:08 y[W 6

DPC-781/782/981
4
ADJUSTMENT
No.
2
1LASER
POWER –
Apply the sensor
section of optical
power meter on
the
pickup lens.
Short the test land. Confirm
that the display is
" ".
Press FF Key and confirm
that the display is 03.
–
On the power from
0.08 to 0.15 mW,
when the diffraction
grating is correctly
aligned with the RF
level of 1.0 Vp-p or
more.
–
3
4
5
ITEM
FOCUS
ERROR
TRACKING
ERROR
FOCUS
GAIN
TRACKING
GAIN
INPUT
SETTING
Test disc
KTD-03
Test disc
KTD-03
Test disc
KTD-03 Apply
signal of
1.0kHz,
0.05Vrms
between
Check-land F1
and F2.
Test disc
KTD-03 Apply
signal of
1.0kHz,
0.05Vrms
between
Check-land T1
and T2.
OUTPUT
SETTING
Connect an oscillo-
scope as follows.
CH1:RF
(Check-land RF)
CH2:T1
(Check-land TE1)
Press the FF key.
Confirm that the display is
" ".
Connect a LPF
between Check-
land F1 and F2 to
which connect an
oscilloscope or AC
voltmeters.
Connect a LPF
between Check-
land T1 and T2 to
which connect an
oscilloscope or AC
voltmeters.
Connect an oscillo-
scope as follows.
CH1:RF
(Check-land RF)
CH2:T1
(Check-land TE1)
PLAYER
SETTING
Press the PLAY key .
Confirm that the display is
"05".
Press the PLAY key .
Confirm that the display is
"05".
Press the PLAY key .
Confirm that the display is
"05".
ALIGNMENT
POINT
TE
BALANCE
VR5
FOCUS
GAIN
VR4
TRACKING
GAIN
VR6
FE
BALANCE
VR3
ALIGN FOR
Optimum eye pattern
Symmetry between
upper and lower
Two VTVMs should
read the same
value.
Two VTVMs should
read the same
value.
FIG.
–
–
(d)
(e)
L.P.F
L.P.F
F1
F2
AC voltmeter
VC
1.0kHz
0.05Vrms
L.P.F
L.P.F
T1
T2
AC voltmeter
VC
1.0kHz
0.05Vrms
Note: Test DISC KTD-03, TCD-783 or equivalent
LPF : Around 47kΩ+ 390 pF or so.
Step 1~5 are in Test Mode.
(d) Focus Gain
Two VTVMs should read the same
value.
(e) Tracking Gain
Two VTVMs should read the same
value.
DPC-781/782/981(K)1P(98.4.2423:08 y[W 7

ACEBD
2
1
3
5
7
4
6
PC BOARD(Component side view)
Refer to the schematic diagram for the value of resistors and capacitors. 5
DPC-781/782(K)pcb 98.3.204:10PM y[W 1

6
PC BOARD(Foil side view)
Refer to the schematic diagram for the value of resistors and capacitors.
1
J
F HG I
2
3
5
7
4
6
DPC-781/782(K)pcb 98.3.204:13PM y[W 2

1
2
3
4
5
6
7
IC11
IC12
E
M
M
F
(X32-348X-XX)
PICKUP ASS’Y (T25-0049-05):KMS-542D
A D
CB
IC13
IC5
IC1
IC2
Q20
CHARGE
CONTROL
PULSE
OPE AMP
(NO USED)
Q23
D31
(PULSE
IC
Q21
CONTROL
STEP DRIVE SPINDLE GAIN CHANGE-OVER
(NOR./HI SPEED)
D.S.P.
D5
D3
(FOK "L")
CONTROL
SLED GAIN
(2/2)
IC9
(1/2)
IC9
CHARGE)
SWITCH
LIMITTER
Q34
AC ADAPTOR
DET.
Q6
D1
Q1 Q5
(DEFECT DET.)
COMPARATOR
DEFECT
DET.
VOLUME
D6
(1/2)
IC10
D15D14
D2
D25
Q18
+2.9V
AVR
)(CONVERTER
DC-DC
SWITCH
DC-DC
CONVERTER
D26
Q9
PD
LD
D13
Q11
E1
AB
CN1
CN6 CN3
C
A
+2.9V AVR
Q8
Q10
Q3
LD
COIL
FOS.
COIL
TRK. C
0N/OFF
APC
CN2
B
RESET
Q32
Q2
MOTOR
DRIVER
Q37
DET.
BATTERY
Q17
FG
DET.
RF/SERVO
DEFECT
(2/2)
IC10
Q15
Q16
TG
TB
FB
LASER DIODE
Q13
Q14
D12
1.6V
2.3V
6.0V
1.5V
1.1V
0V
3.1V
5.7V
0V0V
0V
0V
0V
5.7V
2.7V
0V
3.3V
1.4V
2.5V
0.8V
2.7V
1.1V
1.1V
1.1V
1.2V
1.1V
1.1V
1.1V
0V
0V
2.6V
2.7V
2.6V
1.3V
1.2V
1.4V
1.3V
1.3V
1.4V
1.3V
1.3V
1.3V
0.3V
1.3V
2.6V
1.3V
1.2V
1.3V
1.2V
1.7V
0V
0V
2.6V
1.4V
2.6V
2.7V
1.4V
1.4V
1.1V
2.7V
0V
2.7V
2.7V
0V
0V
2.7V
2.7V
2.9V
5.6V
BATT.2.3V
ACADP.5.0V
BATT.2.6V
5.7V
0.1V0.2V
0.1V
0V
0V
0.1V
0.8V
1.3V
1.4V
0.8V
1.4V
1.4V
1.4V
1.6V
1.3V
2.4V
0V
0V
0V
0V
0.3V
0.2V
0.9V
2.1V
2.6V
1.2V
2.7V
2.5V
2.6V
2.5V
0V
2.7V
0V
0V
2.7V
0V
2.7V
2.5V
2.6V
2.5V
1.2V
1.6V
1.4V
1.4V
0.7V
1.0V
1.4V
1.4V
1.4V
1.4V
1.3V1.4V
1.4V
1.4V
1.4V 1.4V
0V
2.7V
0V
2.7V
2.6V
2.6V
2.6V
1.5V
1.6V
0.6V
1.3V
0V
2.9V
1.4V
1.4V
1.4V
1.4V
1.4V
1.4V
1.6V
1.4V
1.4V
2.7V
1.4V
1.4V
(BATTERY)
5.5V
2.9V
2.7V
5.0V
1.4V
2.7V
0.8V
0.6V
1.4V
1.8V
1.4V
2.0V
2.2V
0.2V
1.4V
1.4V
10K
11K
220P
220P
+
C112
10u10
1M
0.01
0.047
IC9(2/2)
IC9(1/2)
Q22
22K
16K
R29
L1
470uH
R26
W1
R205
R314
10K
39K
C34 1000P
1000P
C38
0.033
3
2
1
+B
+B
+B
+B
+B
R201
39
+B+B+B
+B
15
R204
R214 18K
R119
22K
SYSM
12P
C213
+B +B
R212
22
C201
+
47u4
IC10(1/2) Q21
22K
R23
R1
22K
R218
4.7K
560
R217
16.9344MHz
+
C18
100u4
3.3
C10
+
22u10
2.6V +B
+B+B
+B +B
+B
+B
+B
+B
+B
+B
+B
+B +B
+B
+B
C2PO
C4M
C453
10u10
+
130
R337
Q3
+B +B
+B
+B
+B
+B
+B+B
+B
+B +B
+B +B +B
+B
+B
Q17
4
180K
Q34
R9
180K
R11
0.01
C5
300K
R12
220K
R10
300K
R13
24K
R8
47K
R26
R7 3.3 R6 3.3
R14
2.7K
+
22u16
C1
330
R25
0.1
C6
R15
0.01
C9
R16
390
+B
IC10(2/2)
Q15,16
R452
27K
+B
+B +B
+5V
10K
R301
0.1
C302
10K
1000P
+
C301
47u4
C451
1000P
C450
+B
+B +B
+B
+B
+B +B
+B
+B
+B
+B
+B
+B
+B
+B
R309
1000P
C303
0.01
C305
R19
220P
+
10u10
C35
1000P
C39
1000P
1000P
C37
OP-
+
C36 22u10
C43
1000P 1000P
C31
PREGND
7 9 5 3
C8
0.01
R18
13K
C44
+B+B
330
R219
49
47
39
15K
R108
47K
R118 180K
1.6K
R116
34
-
+ 1
2
3
38
+B
+B
+B
R144
22K
R142
1.3M
R136 R135
R141
R143
4.7K
C41 0.1
33K
R24
29 31
10K
R27
1
R20 4.7K
R305
EXT VSS
VO
+
- 7
5
6
L2
25 27
-
+
1
8
23
13 TRK(+)
-
2+
SPD. MOTOR
+
2
1
2-
SLD. MOTOR
1
LMT. SW
1
X3
330K
R206
1M
R120 1M
C120 150P
SPDL+
SPDL-
SLED+
SLED-
SLTSW
GND
41 40
40
R17 10K
R22
220
+
C17 100u10
3VO EXT 4
2VDD
1VSS CE 5
SHORT LAND
VCC
PD1
PD2
VC
6 GND
VR
PD4
5
1
PD1
PD2
2
E3
15
14 FCS(-)
FCS(+)
12
11
10 F
A/L
TRK(-)
9
8
7 LD
VCC
VC
+
A/L
100K
82K
200P
390K
R117
L11
+B +B
+
47u4
C114
R215
470
R213
6.8K
330K
R216
MDP
40
VR1
50K
C306 1 C307 1
R327
470K
R326
470K
R316
470K
R325
100K
R21
47K
3GND 4
SUB
2
OUT VCCNC
1 5
R342 4.7K
R321 4.7K
R322
10K
38
34
41
40
C40
C32 1000P
CO1 CO3
33 1
BATT1 BATT3
32 2
OUT1F OUT3F
31 3
POWGND POWGND
30 4
OUT1R OUT3R
29 5
BATT12 BATT34
28 6
OUT2F OUT4F
27 7
POWGND POWGND
26 8
OUT2R OUT4R
25 9
BATT2 BATT4
24 10
DGND 44
12
ESP CN3 43
13
PC
CN4 42
14
CT IN4 41
15
RT IN3 4016
CLK VC 3917
VG IN1 3818
LG IN2 3719
CN1
PREVCC 36
20
CN2
OPOUT 35
21
34
CH1MUTE
22
11
CO4
23 CO2
25 27 29 31
SPDL+ SPDL- SLED+ GND SLTSW SLED-
122 1 1 2
91
R129
5 6 7 9 7 5
13
3
FCS+ FCS- TRK- TRK+ AL F VC VCC LD GND VR PD E PD1 PD2
13 25 415 14 13 12 11 10
C128
22u10
VR3
22K10K
R127 10K R130
R131 30K
R128
4.7
+
C126
47u4
R132 30K
C116 C117
C118 4700P
C119 0.01
R114
2.2K
R115
4.7K
R113
22K
C121
33P
R137
100K
14
12
13
11
10
R112 220K
R111
51K
C111
1R453
3.3K
510K
82K 0.022
R139
VR4
22K
C108
R104
C107 0.01
R103 510K
C106
C104 0.1
R138
R107
+
C105
4.7u6.3
R101
100
C102 0.47
C101
R102 56K
C103 220P
C110
7
4
8
5 6
0.1
+ -
C125
R134 1M
R123
VR5
22K
22K
VR6
180K
R106
100
C129
0.1
1.8M
6.8K
R122
R125
24K
R124
10K
R126
20K
R133 1M
180K
0.1
C122
+
C127
22u4 R140
C123
0.022
25
TAM FOK
12
26
FSET
CC2
11 27
TG2
CC1
10 28
TGU
CB
9 29
SRCH
CP
8 30
FEM
RFI
731
FEO
RFO
6
32
FLB
RFM
533
FGD
LD
434
FDFCT
PHD
3
35
FEI PHD1
2
24
SENS
FE.B
37
23
C.OUT
F
38
22
XRST
E
39
21
DATA
EI
40
20
XLT
VEE
41 19 CLK
TEO
42
18
VCC
NC
43
17
ISET
TEI
44
16
SLO
ATSC
45 15
SLM
TZC
46 14
SLP
TDFCT
47
361 FEO PHD2
48 13 TAO
VC
2
89
88
87
11
10
86
12
14
13
100 57
13
85
44
43
42
41
10K
220P
C223
11K
R223
R221
C214
12P
R222
C224
R224
+
C202
47u4
C210
0.01
430K
R210
1.5K
9876
7 6 5
13
10uH
+
C203
0.047
0.47
C207
R209 1M
C206 220P
C205
3300P
100K
C204
1500P
+
C209
22u4
R2073.3K
R208
10K
C208
0.15
R202
R203
VDD 61
ZLRCK
39
AVSS 62
YLRCK
38
AVDD
63
AOUT1 64
ASY0
37 AIN1
65
ASYI
36 LOUT1
66
BIAS
35 AVSS 67
RF
34 XVDD 68
AVDD
33 XTAI 69
CLTV
32
XTAO
70
AVSS
31
XVSS
71
FILI
30
AVSS 72
FILO
29 LOUT2 73
PCO
28
AIN2
74
VCTL
27
AOUT2 75
V16M
26
AVDD 76
VCKI
25
AVSS 77
VPCO
24
VDD
78
TES1
23
79
TEST
22
1VSS
60
2 VSS
LMUT 59
3 EXCK
RNUT 58
SBSO 57
SCOR 56
4
WFCK
SQCK
55
5
EMPHI
SQSO
54
6
EMPH
SENS
53
7DATA
8DOUT
XLAT
52
9CLOK
51
10 XTSL
SEIN
11 CNIN
12 DATO
13 XLTO
14 CLKO
15 SPOA
50
49
16
XROF
SPOB
48
17
XPCK
XLON
47
18
RFCK
FOX
46
19
VDD
VDD
45
20
VSS
VSS
44
ZBCK 43
YBCK 42
ZDATA
80
21
XRST
PWMI
41
YDATA
R121
100K
C115 0.01
+C26
22u4
C113
0.01R110
R109
120K
X X
X
X
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()
()
()
()
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(
()
()
()
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(
() () () ()
ABCDEFG I K M OH J L N
DPC-781(K)3P98.4.2423:06 y[W 2

Y22-7460-11
DPC-781/782/981
ED1 (B38-0161-05)
IC8
DPC-781/782/981 (K)
IC4
IC7
IC6
IC3
: UIBC44D31
Q24
D30
D23
AC ADP.
D29
DOWN
S15
UP
S14
BB
S13
STOP
S12 S11
PLAY
Q12
CN5
SEGMENT
COMMON
S16
DASC
S17
P. MODE
REPEAT
S18
CONTROL
SENSOR
REMOTE A1
D16
D20
D19 D18 D17
UP DOWN STOPPLAYLCD BACK LIGHT
D22 D21
DC
B
OUT
A
BH6504K D26
D51
: MBRA130L
: DA204U
D3 : DAP202U
IC7,8
D25
D2,6,11,13-15,27
: DTA114EUAQ36
Q2,7,11,15,19,20,23,31,
IC12 : XC6383B301MR
IC13 : PST9124NR
LIMITTER
S3
BUFFER
ON/OFF
POWER SUPPLY
OPTICAL OUT
OUT
Q19 MUTE
B.BOOST
SW
D28
Q39
Q35
Q40
Q44
Q31
Q33
D11
HOLD
SW
D8
D9
D7
Q42
D27
LINE OUT
J4
Q4
P1
DRAM
SW
B.BOOST
Q41
ON/OFF
LED
IC1 : CXA1982Q
IC2 : CXD3009Q
IC3 : uPD78063GF-138
IC4 : LA4800V
IC5 : BH6509K or
IC6 : RL5C356
IC9 : NJM2904M
IC10 : NJM2903M
IC11 : RN5RG29AA-TR
Q1,5,40,43 : DTA124EUA
32,34,35 : DTC124EUA
Q3 : XP161AO390PR
Q4,17 : 2SA1576A(R,S)
Q6,9,44 : 2SD2153(V,W)
Q8 : 2SB1424(Q,R)
Q10,37,38 : 2SC4081(R,S)
Q16,45,46 : DTC323TK
Q14,22,33,39 : 2SB970
Q12,13,41,42 : DTC114TUA
Q18,21,24 : DTA114TUA
D1 : UDZ5.1B
D5,12,29 : MA111
D7-9,24,28,30 : RB450F
Q38
4.5V
BATTERY
J1
D51
: U2FWJ44N
: RB451F
MN41V4400TT-07
Q36
OPTICAL
: MN41V4400TT-08 or
A2
AMP
PHONES
PROOF
SHOCK
J3
REMOTE
J2
HEADPHONE
CONTROLLER
Q43
MUTE
MUTE
Q46
Q45
LID SW
S2
Q7 D24
u-COM
SHUFPGMD.A.S.C. B.BOOST 2 C1
21B.BOOST CPGM SHUFD.A.S.C.
3.1V
2.7V
2.7V
3.1V
3.0V
2.7V
2.7V
0V
0V
2.6V
2.7V
0V
2.7V
2.8V
2.7V
2.8V
2.6V
2.6V
2.6V
2.7V
2.7V
2.7V
2.7V
2.7V 0V 0V
2.7V
2.7V
0V2.7V
2.0V
0V
12.6V
0V
2.7V
1.2V
1.2V
1.2V
1.2V
1.2V
1.2V
1.2V
1.2V
1.2V
1.2V
1.2V
1.2V
1.2V
1.2V
1.2V
1.2V
1.2V
1.2V
0.8V
1.6V
1.2V
1.0V
1.0V
1.0V
1.0V
1.5V
0V
2.6V
2.9V
2.0V
2.9V
0V
2.7V
2.3V2.7V
2.7V
2.7V
2.7V
2.7V
2.7V
1.4V1.3V
2.7V
2.7V
0V
0V
1.3V
2.6V
1.4V
1.2V
1.3V
2.7V
0V
1.4V
0V
0V
1.3V
1.2V
OFF:2.7V
B.B ON:0V
2.2V5.7V
2.7V
5.5V
5.6V
1.4V
1.1V
2.4V
2.7V
2.8V
2.9V
2.2V
2.7V
1.1V
1.1V
1.1V
1.1V
6.1V
0V
1.0V
1.0V
1.0V
1.8V
1.0V
1.8V
+B LINE
X
X
X
X
C7
0.1
R351
C313
47K
0.1
A1 W1
R28,315,
R26 345
C311,
312
YES NO
YES
NO2.2
YES
312
C311,
YESNO
0-23MGENERAL MARKET
YESNO
YES
NO
W1
NOYES
YES
NO
NO2.2
3.3
3.3
R26
YES
NO
C311
NO
YES
YES
NO
YES
NO
R315
NO
NO
R28
YES
NO
YES
2.2
3.3
3.3
R26
YESYES
Q35,
39
Ni-MH : 2.4V
ALKALI : 3.0V
180
R338
+B
+B+B
NO
NO
4
1
2
3
R340
22K
R320
2.4K
R319
1.8K
R318
1.5K
R317
1.2K1.2K
R323
R306
27K R305
2.7K
C4
0.1
R5
10K
C2
0.1
+B
3
2
1
NC
C405
6.8K
C424
C407
C406
+B
SIGNAL LINE
GND LINE
19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
4 3 1 2
2.2
R331
8.2K
R330
4.3K
5.6K
R329
+B
OUT
VCC
GND
R315
470K
R341
100
+
C312
22u4
71 70 69 68 67 66 51
+B
+B
R310
180
64 63 62 61 60 54 53 52 65 74 73 72
180
R332
180
R313
180
R312
180
R311
DESTINATION
COUNTRY
U.K.
GENERAL MARKET
CANADA
DPC-981 (X32-348X-XX)
180
R334
180
R333
R28AUNIT No.
ABB.
J0-22
COUNTRY
JAPAN
DESTINATION
DPC-781 (X32-348X-XX)
YESYES1-01
M2GENERAL MARKET
CANADA P
D31
YES
YES
NO
W1
YES
A1
NONO
C312
YES
Q43
YESYES
B D
NO
E
T
EUROPE
0-11
KU.S.A.
A C
ABB. UNIT No.
YESM
2-71
0-21
P
YES
W1
YES
R28 D31
NO
R26
A C D BUNIT No.
ABB.
K
COUNTRY
U.S.A.
DESTINATION
DPC-782 (X32-348X-XX)
3.3
YES NO
0-12
XAUSTRALIA
CANADA P
A1
YES
D
NO
C
YES
NO
B
YES
NO NO YES
NO
0-00 NO
A1
YES
R315 D28
NO
C312
+B+B +B
470
R211
10
R335
3
2
1
A D B C
ABB. UNIT No.
DESTINATION
COUNTRY
DPC-TR1 (X32-3480-00)
3
1
2
+B
+B
+B
+B
+B +B
+B
+B+B
+B
+B+B+B
+B
+B
+B
+B+B
+B+B
+B
+B
+B +B
Q31,33,35,39
Q36
+B +B +B +B +B +B +B +B
+B +B
+B
A9
1K
R307
+
LINE
R415
2.2
1
C402
1
C401
Q35,
39
345
R315,
39
Q35,
Q35,
39 D28, 31
R341
YES
D28
Q43
NO
R341Q43
NO
R341 R345Q43
D31
NO
YES
D28
YES
NO
YES
R341 R345C311
4.7K
R423
OFF
ON
100K
R421
4.7u6.3
+
+
4.7u6.3
3.3u4
+
1
C417
4.7
R411
0.15
C411
+
47u4
R402
C414
0.047 0.047
C415
2.2
R416
R412
4.7
1
R413
0.15
C412 C413
1
40 39 37 38 42 41 43 44
0.047
C416
100
R350
10u10
C310
+
34 35 36
1.1K
R347
1K
R414
VSSD0
11
12 39
40
A5A3
10
9
44
A4VCC
43 38A6A2
15 36
13
14 37
XOE
A8A0
6
35
41
A7A1
8
7
42
165
31
IC7,8
R343
10K
R344
R339
47K
22K
0.01
C311
R308
470K
47K
R349
PLUG
R324 100K
R345
3.9K
C3
201
19 30
17 29
28
18
D3D1
2
32
D2
XCAS
XWE
XRAS
4
33
34
3
R420 16K
BEEP 9 RFO
8
VCC 11
PREG
6
10
RFCO
7VRCO
5.6K
R406
5.6K
R405
R419 10K
C432 C431
Lch
GND
Rch
+
0.01
41
R302
33K
33
32
31
29
30
27
R422
R2
100K
R3
100K
GND
SWITCH
+B
COM1 COM0 COM2 COM3
S0 S1 S2 S3 S4 S5 S9 S6 S7 S8
S10 S11 S12 S13 S14
0.01
C309 C308
1000P
R336
10 GND
OUT
VCC
GND
R401 22K
C404
1200P
R404
8.2K
C403
1200P
R403
8.2K
+
47u4
C420
16
PWSW MUTE
1
15
INA OUTA
2
14INC PWG
3
13
INB OUTC
4
12
OUTB
5VREF
C421
38
37
36
27
32
31 D0
1VSS 20
D1
2D3 19
XWE
3D2 18
XRAS
4XCAS2 17
A9
5XOE 16
A0
6A8 15
A1
7A7 14
A2
8A6 13
A3
9A5 12
VCC
10 11
A4
C422
47u4
97
98
96
95
21
3
22
57 47 49 42 40 44 43
5
4
33
32
31
30
29
28
34 35 36 37 38 39 40 41 42 43 44
39
99
34
22 XSOE XRAS
35
21 SDTO A9
36
20 XRST A8
37
19 SCOR
A7
38
18 RFCK
A6
39
17 XROF A5
40
16 ZDATA A4
41
15 ZLRCK A0
42
14 ZBCK A1
43
13 YBCK
A2
XWE
VCC 33
1
D1XQOK 322
D0
XWRE 31
3
D3
XEMP 30
4
D2
XWIH 29
5
XCAS
C176 28
6
XOE/XCAS2
CHDT 27
7
SCK
EBLK 26
8
SDTI
CLK 25
9
XLT
GND 24
10
A3
YLRCK
44
12
11 23
TEST
Y DATA
R433
22
R417
100K
R418
100K
R432
680 R434 22
C423
0.1
+
C434
4.7u4
C433
4.7u4 R431
680
KEY
DATA
Rch
Lch
VREF
1000P 1000P
51
R303
33K
R328 100K
R348
1K
85
87
86
88
89
99
97
98
96
100
95
R4
X2
5.00MHz
1
10K
C304
0.022
3 5 4 2
13
21 22
1
80 NC
NC
2
79 NC
SQCK
3
78 NC
SDTO
4
77 NC
SDTI
5
76 NC
SCK
6
75 NC
IC
7
74 S14
X2
8
73 S13
X1
9
72 S12
VDD
10
71 S11
XT1
11
70 S10
XT2
12
69 S9
RESET
13
68 S8
SCOR
1467 S7 RCI
1566 S6
1665 S5 FOK
1764 S4 GFS
1863 S3 HDATA
1962 S2 BB
2061 S1 SGAIN 2160 S0 CHDT 2259 VSS XSOE
23
58 VLC2 NC
24
57 VLC1
NC
25
56 VLCO
DEFECT
26
55 BIAS
NC
27
54 COM3
AVSS
28
53 COM2
KEY1
29
52 COM1
KEY2
100
BATTV1
31 SQSO 99
BATTV2
32 XLT 98
HPKEY
33 XQOK 97
NC
34 XWRE 96
ADON
35 XEMP 95
AVDD
36 XWIH 94
AVREF
37 LIDSW 93
SLTSW
38 LDON 92
DCDCON
39 HOLD 91
VSS
40 LINE 90
ADPT
41
89
CHRGOK
42 SENS 88
CHRG
43 DATA 87
XRST
44 CLOK 86
DMUTE
45 XLAT 85
RMUTE
46 SHOCK 84
TEST
47 LED 83
NC
48 NC 82
PSW
49 NC
30
COMO
51
VOL
8150 NCHPMUTE
68 67 66 65 64 63 62 61 60
33K
R304
54 53 52 74 73 72 71 70 69
29
39
30
40
44
43
42
41
35
34
33
NOYES NO YES NO NO NO YES3.3NO YESJ 0-00JAPAN
X
XX
X
X
X
X
X
X
X
)
(
)
(
)
(
()
() () ()
)
(
)
() () () () ()
)
(
)
( () () () () () () () ()
)
( () () (
( ( ( (
) ) ) )
( (
) )
() () () ()
)
(
()
)
(
()
()
()
)
(
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)
(
)
(
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()
()
)
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(
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(
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)
(
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)
(
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)
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)
)
()
)
(
)
(
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)
(
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)
(
()
)
(
() ()
() () () () () () ()
)
(
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()
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()
()
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() () () () () () () () () () ()
)
(
)
(
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(
)
(
)
(
()
)
(
)
(
)
(
)
(
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)
(
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(
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(
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)
(
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(
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(
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(
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(
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( ()
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PR T V X ZABADQ S UW YAA AC
DTC323T
2SB970
2SC4081
2SD2153
NJM2903M
NJM2904M DAP202U
DA204U
RB451F
XC6383B301MR PST9124NR
CXD3009Q RL5C356
LA4800V
CAUTION: For continued safety, replace safety critical
components only with manufacturer's recommended parts
(refer to parts list). indicates safety critical components.
For continued protection against risk of fire, replace only
with same type and rating fuse(s). To reduce the risk of
electric shock, leakage-current or resistance measurements
shall be carried out (exposed parts are acceptably insulated
from the supply circuit) before the appliance is returned to
the customer.
The DC voltage is an actual reading measured with a high
impedance type voltmeter. The measurement value may
vary depending on the measuring instruments used or on
the product. Refer to the voltage during PLAY with DASC
OFF(at the normal speed) unless otherwise specified; The
value shown in ( ) is the voltage measured at the moment
of STOP.
DPC-781(K)3P98.4.2423:06 y[W 1

13
KSM-542DBA
AC AC
AB
AA
PU
FM
AA M2x2.5(BLK)
AB M2x8
AC M1.7x1.8
: N09-3425-08
: N09-3424-08
: N39-1718-46
1
42
5
3
808
809
811
810
1
2
3
AB
Parts with exploded view numbers larger than 700 are not supplied.
DPC-781/782/981
EXPLODED VIEW (MECHANISM)
DPC-781/782/981(K)1P(98.4.2423:08 y[W 12

EXPLODED VIEW (UNIT)
14
1.6x4
2x4
2x8
: N09-2893-05
: N09-3021-05
: N09-3412-05
A
B
C
S 3
VR1
HOLD
S12S11S18
REPEAT
A1S13S15
S 2
OPEN
S17
P.MODE/
SEARCH
ED1
VOLUME
J 3
REMOTE J 2 PHONES J 4
LINE
OUT J 1
DC IN
Bx2
Bx2
Cx2
C
C
C
C
X32-3480-11
DPC-781/782/981
663 660 620
661
667
662
605
606 624
664
744
769
668
631
643
745
635
642
650
612
651
652
641 640
641
601
611
653 615
746
B
P1
603
604
622
621
621
622
655
610
623
654
636x2
770
725
716
(GRN)
(GRN)
(RED)
730
NB-130
AAA
A 2
OPTICAL
OUT
1
2
3
CD
Parts with exploded view numbers larger than 700 are not supplied.
DPC-781/782/981
DPC-781/782/981(K)1P(98.4.2423:08 y[W 11