Main Part - Denon PMA-720AE Service Manual

1 2
J123
C111 C113 0.018u
C123
6800P
R113 120K
OPEN
C105 C115 6800P C117
R121 R101 R111 R117
0 330 10/50V 10K 10/50V 220
R115
R123
L101 100
220
5 6 7 8
PHONO
4 3 2 1
R124
220
R116
L102 C118
R122 R102 C106
100 10/50V R118
R112 6800P
C116 220
0 330 10/50V
10K
R114 120K
C112
C114 0.018u
6800P
J101
OPEN
R202
CD-R
220
CD
R201
CD-L
TUNER-R
220
J2
LINE-R
R204 TUNER-R
220
COMMON-R
TUNER
R203
TUNER-L RCDR1-R
220
RCDR2-R
COMMON-R
R206
LINE-R
220
RCDR2-ROUT
AUX
R205
LINE-L COMMON-R
220
VEE
VEE VDD
CE
CE
R208 RCDR1-R DI
DATA
220
CLK
CLK
NETWORK
R207
RCDR1-L
220
R210
C184 OPEN
RCDR2-R
220
C185 OPEN
PB
C186 OPEN
R209
RCDR2-L
220
R214
RCDR2-ROUT
220
RECORDER
R213
RCDR2-LOUT
220
C384 R386
100uF/25V(RA3)
10K
PRE_OUT
C383 R385
100uF/25V(RA3) 10K
R-OUT
AGND
COMMON-R
L-OUT COMMON-L
AGND
+15V
J710
AGND
OPEN
-15V
R425 R424
100K OPEN
R422 1K
C404 R421 1K
0.01uF
C403
R420 10K
VOL.DN
VDD VAREF
100/16V
R419 10K
AVDD VOL.UP
DGND
AC_RELAY R418 1K
AVSS
1K
R498
AUX PHONO
IC41 R499 1K
CD
R500 1K
TUNER CVITMP86FH47BUG
TUNER
R414 0
AUX CLK
CD
R413 0
NETWORK STB
R412 0
PHONO
RECODER DATA
R433 R411 1K
TXD
SIGNAL TIMER
R410 1K
1K SIGNAL DET
RXD
ACT
R401
DGND 1M
X401
8MHz
CHGND
+12V
C502
100P
Q450
R448 22K
KRC111S
R480 22K
P.GND
S.GND
Q452
KRC111S
OUT2
IN2
NC
IN1
OUT1 NC
D421
NC
VCC
1SR159-200
1 2 3 4 5 6 8 9 10 11 12 13
7
FROM FRONT TONE
CN50
GND_A POWER +_A POWR -_A
3
CN52
7 6 5 4 3 2 1
FROM FRONT VOLUME
INPUT1
R600
47 R602
PHONO-L
1K
DGND
1 2 3 4
8 7 6 5
R601
47
PHONO-R R603
1K
DGND
R303
RY51 220 (AMRS)
BC3-12
PHONO-R
PHONO-L
COMMON-L
TUNER-L
D215
LINE-L
1SS355T
C215
COMMON-L
10/50V(RFS)
COMMON-R
RCDR1-L
RCDR2-L
COMMON-L
Q215
RT1N141C
RCDR2-LOUT
RY52
COMMON-L BC3-12
CD-R
VDD
CD-L
R910
RES
10K
SET
VSS
+12V
D216
R304
1SS355T
C216 220 (AMRS)
10/50V(RFS)
C224
10P
R220
1M
1 2 3 4 Q216
RT1N141C
IC32
CVINJU7181RB1
8 7 6 5
C225
10/50V
C500 2.2/50V
J210
Q471
RT1P141C
C221
100/25V(RA3)
R502
4.7K
D402
1SR159-200
R458 C458 D461
D403
1K 2.2/50V
Q457 RLS4148 1N4003ST
C2875 D460 R460
D404
OPEN
0 1SR159-200
D405
R473
0
1N4003ST
D406
1SR159-200
D464
R463 R462
100 100
RLS4148
Q464
RT1N141C
Q472 Q465 Q466 Q467 Q469
RT1P141C RT1P141C RT1P141C RT1P141C RT1N141C
Q454
C2875
Q468
C2875
Q453
RT1N141C
Q456
C2875 R456
Q473
1K
RT1N141C
6 5 4 3 2 1
CN41 MCU UPDATE JIG
GND_D POWER +_D
4 5
Adjusting 10mV±0.5
CN31
A0 Q311 A0 Q313 C325( 神榮 ) A2
Q319 3 2 1
KSA992 KSA992 JP OPEN
2SD2083P
E2/E1C 22PF
Q309 Q307
R361
KSC1845FTA KSC1845FTA
22K
2
C307 R307
R335
1000P( 神榮 ) 270 (AMRS)
12K (AMRS)
C305
R703 Q317
2SC4495
100P ( 神榮 )
1K (AMRS)
R360
1M (AMRS)
C309
A0 Q315 C331( 神榮 )
220uF/25V(RFS)
KSC1845
JP 0.01uF
C311
IC301 220uF/25V(RFS) E2/E1C 0.01uF
2SK2145GR
Q321
2SB1383P
C341( 神榮 )
JP 39P
C341
E2/E1C 33P
33P
R397
150 (AMRS) C350
R343
0 (JUMPER)
OPEN
C343
OPEN
Adjusting 10mV±0.5
CN32
C326( 神榮 ) A2
A0 Q312 A0 Q314 Q320
3 2 1
KSA992 KSA992 JP OPEN 2SD2083P
E2/E1C 22PF
Q310 Q308 R362
KSC1845FTA KSC1845FTA
22K
2
R338
12K (AMRS)
C308 R308
1000P( 神榮 )
270 (AMRS) R705 Q318
C306
2SC4495
1K (AMRS)
100P ( 神榮 )
R340
1M (AMRS)
C310 C346( 神榮 )
A0 Q316
220uF/25V(RFS)
KSC1845 JP
0.01uF
C312
E2/E1C 0.01uF
220uF/25V(RFS)
IC302
2SK2145GR
Q322
2SB1383P
C342 ( 神榮 )
JP 39P
C342
E2/E1C 33P
R342 33P
150 (AMRS)
C345
R344
0 (JUMPER) OPEN
C344
OPEN
Q257
RT1P141C
R489
10K
+5V
Q251
C3198Y
OVERLOAD
DETECTOR
Q252
C3198Y
THERMAL
DETECTOR
R252
33K
TH51
IC43
CVIKIA1117S33
2 Out In 3
C927,928
D408 PMA-720AE,390RE OPEN
PMA-520AE 0.01 uF /100V (SEORYONG)
1
27V
D409
9.1V
Q408
RT1N141C
CHGND
ZD468 R468
OPEN
OPEN
ZD467 R469
4.7V 47K
STBY POWER
23
6
MAIN SCHEMATIC DIAGRAM
Q325
KSA992FTA
+12V
Q323
KSC1845FTA
1 2 3
C327(Seoryong)
1000PF
6 5 4
L-OUT
SPK B
R398,R399
JP 10 1W
E2/E1C 4.7 1W C390(Seoryong) Q331
C3198YT
1000PF
C340(Seoryong)
JP 0.1uF(PPF)
E2/E1C 0.22uF(PPF)
R377
100K
R378 R379
DGND
*
100K 10K
1 2 3
6 5 4
SPK A
Q324
KSC1845FTA
C391(Seoryong) Q332
C3198YT
1000PF
C328(Seoryong)
1000PF
R-OUT
R199,R200
JP
10 1W
DGND *
E2/E1C 4.7 1W
Q333
C347(Seoryong) C3198YT
D335 R555
JP 0.1uF(PPF)
E2/E1C
0.22uF(PPF)
1SS133MT 4.7K
R391
10K C392(Seoryong)
1000PF
*
+12V
Q901 F803
1A/250V
KTD2058Y
+15V
D
Q903
2
2SK209GR
Q254 G
3
RT1P141C
1 S
Q253
A1266Y
DC Q904
D 2SK209GR
DETECTOR 2
R257 G
3
Q255 Q256
100K
C3198Y C3198Y
S
1
-15V
Q902 F804
1A/250V
KTB1366Y
IC92
KIA7806API (With H/S)
OUT IN
D925
3 1
1N4003SRT
GND
2
OUT IN D926
3 1
C929,930 1N4003SRT
47 uF /50V (RFSA) COMMON
47 uF /25V (RA3)
2
*
IC91
KIA7812API
SCHEMATIC DIAGRAMS (2/2)

MAIN PART

7 8
(SEORYONG)
C393/C394/C395/C396
JP OPEN
E2/E1C 0.015uF
(SEORYONG)
C375/C376/C377/C378
JP OPEN
JK31
E2/E1C 0.01uF
1
+
SPK B
L CH
-
2
3
+ SPK A
-
4
(JK41)
5
+
SPK B
-
6
R CH
7
+ SPK A
-
8
(JK51)
9
10
( SEORYONG )
C379/C380
JP OPEN
E2/E1C 222
+5V
+5V
SPK B
SPK A
N.C
R381
HP_L CH
390 1W
AGND
8 7 6 5
HP_R CH
1 2 3 4
HP_DET
RY31
BC3-12
+5V
Q420
RT1N141C
Q421
C3198Y
R501
100K
PMA720,390 : NO UES
PMA520 : USE
DGND
*
AC 32V
2 AC
GND
1 4
3 AC
D901
AC 32V
CVDD30XBN20
F801
1A/250V
D921
1N4003ST
D922
AC 14V
AC
1N4003ST
D923
AC 14V
AC
OPEN
D924
OPEN
F802
1A/250V
CD Audio Signal
A
B
C
D
E
F