Sanyo DC-PT80 Service Manual page 28

SCHEMATIC DIAGRAM (AMP-DG)
CN442
R4150
L4150
12K
22UH
AUX1_L
L4250
R4250 12K
22UH
AUX1_R
TU_CE
9 TU_CE
TU_DI 8 TU_DI
TU_CLK
7 TU_CLK
TU_DO 6 TU_DO
TU_R
5 TU_R
L4500
AGND
4
22
TU_L
3 TU_L
+5.6V
2 +5.6V
+9V 1
09
CN450
9V
CN460
TO C_MECHANISM
EACH PRECAUTION IN THIS MANUAL SHOULD BE FOLLOWED DURING SERVICING. COMPONENTS IDENTIFIED WITH THE IEC SYMBOL
OF SPECIAL SIGNIFICANCE.
WHEN REPLACING A COMPONENT IDENTIFIED BY ! ! ! AND
LEAKAGE-CURRENT OR RESISTANCE MEASUREMENTS MUST BE MADE TO DETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING THE PRODUCT TO THE CUSTOMER.
9V
+5.6V
R4121 15K
DVD_L
TU_L
R4123 12K
AUX1_L
C4125
1/50
16 17 18 19 20 21 22 23 24 25 26 27 28 29
L L L L L L
NC AUX2 DVD TU AUX1 TIM Vref VDD
RECOUT VRIN TRE BASS1 BASS2 OUT
IC441 LC75348
R R R R R R
NC AUX2 DVD TU AUX1 TEST VSS CE
SELO VRIN TRE BASS1 BASS2 OUT
15 14 13 12 11 10 9 8 7 6 5 4 3 2
C4225
1/50
AUX1_R
R4223 12K
TU_R
DVD_R
R4221 15K
Q4500 Q4501
KRA107S KRA107S
+5.6V
+5.6V
9 8 7 6 5 4 3 2 1
, USE ONLY THE REPLACEMENT PARTS DESIGNATED, OR PARTS WITH THE SAME RATINGS OF RESISTANCE, WATTAGE OR VOLTAGE THAT ARE DESIGNATED IN THE PARTS LIST IN THIS MANUAL.
- 28 -
IC442
KIA6282K
1 2 3 4 5 6
C4135
100/16
Q4151
KTD1303
R4134
4.7K
30
C4131 R4133 C4132
CL 1/50 1K 1/50
1/50 1K 1/50
C4231 R4233 C4232
DI
R4239
1
8.2K
4.7K Q4201
R4234 KRC107M
KTD1303
Q4251
Q4101
KRC107M
Q4891
KRC107M
Q4850
KTC3205
9V
R4854
2.2K
+5.6V
Q4890
KTC3198
Q4893
KRC107M
SI-8050RD
1 2
+5.6V
R4801
100
L4801
165U
+5.6V
PR482
2500mA
P
C_GND C_GND C_GND
P
13 12 11 10 9 8 7 6 5 4 3 2 1
TO FRONT
PRODUCT SAFETY NOTICE
AND MARK IN THE PARTS LIST AND THE SCHEMATIC DIAGRAM DESIGNATED COMPONENTS IN WHICH SAFETY AND PERFORMANCE CAN BE
! ! !
HEAD PHONE PWB
7 8 9 10 11 12
C4235
100/16
06
CN470
CN440
06
C4136
1000/16
R4139
8.2K
C4236
1000/16
Q4892
KTA1273
R4891
2.2K R4892
47K
Q4851
KTC3198
IC480
L4802
22
3 4 5
C_GND
C_GND
L4800
C_GND C_GND
22
C_GND C_GND
P
D4903 D4900
RL203 RL203
D4902 D4901
RL203 RL203
D4905 RL203
D4906 RL203
- 29 -
C4700
0.01
L4720
1000
R4700 R4701 L4700 L4701
82 150 22UH 1000
L4750 L4751
22UH 1000
R4750 R4751
HEAD PHONE
82 150
CN475
SP471
CN401 LEFT
SPEAKER
RIGHT
SP481 SPEAKER
C4863
0.01
SH_GND SH_GND
SH_GND
C4864
0.01
SH_GND
CN491
PT490
CN490
02
L4900
WR490
02
WR491 AC 220V
C4950
0.047 50HZ
C4951
0.047
This is a basic schematic diagram.