Denon D-T1 Service Manual page 9

SCHEMATIC DIAGRAMS
SCH01 MAIN1 DC POWER
POWER_14V
XP1
1
1
2
2
3 C5 C6
3
4
4 POWER_FRQ1
5 330pF/50V/X7R
0.1uF/50V/X7R
5 POWER_FRQ2
6
6
C8
C7 For select different frq of power SW
6PIN/2.0mm
100pF/50V/NP0
From Power Board 100pF/50V/NP0
POWER_14V
Vout=(120K/22k+1)*0.8=5.16V
R371
0
C254
0.1uF/50V/X7R
U25
PWM_-24V
2 1
L4
VIN BOOT
FB5 5 3
VSENSE PH
7 6
EN COMP
C258 8 4
R298 RT GND
R295 C257
+
CE19 TPS54335
220K
220uF35V
R293
C253
R294 C259
R299
75K/1%
43K
R291 4.7K Q25
DC_Freq_cn
NPN_3DG3904M
C252
R292
10K 0.1uF/16V/X7R
VOUT=0.6*(200K+43.2K)/43.2K=3.38v
U26
STB_5V
L5
3 4
1uH/2.7A
VIN SW
R302 100K
5 6
R301
EN OUT
2 1
200K/1%
GND FB
C264 C262
MP1605
10uF/10V/X5R
R300
43.2K/1%
VFD_14V
BAT54S
D1
1
3
C24 0.1uF/50V/X7R
2
1
C27
C28 0.1uF/50V/X7R
PWM_-24V
3
R32 20 C29 0.1uF/50V/X7R 0.1uF/50V/X7R
D2
BAT54S 2
ANALOG AUDIO DIGITAL AUDIO
STB_5V
FB27 FB28
60/3A 60/3A
10uH/3A
R296
+
120K/1%
FB5
R297
22K/1%
STB_MCU_3.3V
C263
C265
ZD1
ZD3
ZMM27/27V
MM3Z5V1/5.1V
R24
15K
-24V
NPN_3DG3904M
R25 0
Q8
R27 NC/0 R29 0
ZD2
CE2
22uF/50V
VOUT=0.6*(200K+43.2K)/43.2K=3.38v
STB_5V U1
L1
3 4 1uH/2.7A
VIN SW
R1 100K
5 6
EN OUT R2
2 1 200K/1%
GND FB
C1 C2
C3
MP1605
10uF/10V/X5R
R3
43.2K/1%
0.8*(8.2+15)/15=1.23V
VCC12
U2
SYS_3V3 SMG2036ADJ
1 5
VIN VOUT
R4
C9
8.2K/1%
C10
0.01uF/50V/X7R
C11
R5 10K 3 4
10uF/25V
EN ADJ/SENSE
10UF/6.3V/X5R
R6
C12
100nF
15K/1%
Vout=0.8*[1+91KΩ /6.8K]=11.5V
POWER_14V
U3
1 6
R7 10
VIN VOUT
R8
91KΩ/1%
C13 2 5
GND BP
CE1
1uF/35V/X5R
2 R352 1K 3 4
PCON
EN ADJ
R10
R9 C16 6.8K/1%
SGM2202-ADJ
47K
0.01uF/50V/X7R
Vout=0.8*[1+100KΩ /18K]=5.2V
POWER_14V
R335 300Ω/±1%
R346 300Ω/±1% U27
R372 300Ω/±1%
1 6
VIN VOUT
R331
100K/1%
C282 2 5
GND BP
CE267
1uF/35V/X5R
2 R353 1K 3 4
PCON
EN ADJ
R332
R323 C281 18K/1%
SGM2202-ADJ
47K
0.01uF/50V/X7R
Vout=0.8*[1+43KΩ /13K]=3.4V
STB_5V
U28
R330 2.2 1 6
VIN VOUT
2 5
C286
GND BP
CE269
1uF/35V/X5R
R354 100 3 4
EN ADJ
C285
R327
SGM2202-ADJ
R358 NC/100
7 BT_POWER_SW
47K
0.01uF/50V/X7R
9
STB_3V3
C4
SYS_OP_12V
+
C14 CE21 C267
10uF/25V 100nF/25V/X5R
47uF/16V
SYS_EAR_5V
+
C283 C280
CE271
10uF/10V/X5R 100nF/25V/X5R
100uF/16V
STB_BT_3V3
R333
43KΩ/±1%
+ C284
CE272
100nF/25V/X5R
100uF/16V
POWER_FRQ1
POWER_FRQ1
POWER_FRQ2
R334
POWER_FRQ2
13K/1%
8
8