Sanyo DC-DA2000 (XE) Service Manual page 18

SCHEMATIC DIAGRAM (AMPLIFIER)
24 23 22 21 20 19 18 17
L L L ALC L L
NC NC RECOUT ALC
PBNF PBEQ PBOUT LOWCUT RECIN
IC440 AN7348K
CN440
L-CH
L R R R R R R
IN IN PBNF PBEQ PBOUT RECIN RECOUT
R/P
HEAD 1 2 3 4 5 6 7 8
C4805
100P
R-CH
E HEAD
R4607
R4606
Q4603
C4600 KTC3198
IC443
1/50 BA7755A
1 2 3 4 5
R4602
100
L4602
BEAD
Q4601
KRC107M
CN442
R4750
L4782
12K
22UH
L4882
R4850 12K
22UH
A_GND
TU_L
TU_R
TU_CLK
TU_DO
TU_CE
TU_DI
+5.6V
33
+9.0V
R4921
LID_SW
D_GND
This is a basic schematic diagram.
R4720 3.3K
R4721 15K
R4722 4.7K
R4723 12K
R4725 39K
Q4700
KRC107
16 17 18 19 20
16 15 14 13
NC TA CD TU AU
NC NC VCC RECOUT
IC441
REC/PB RIPPLE
B PB GND
SW FILTER NC TA CD TU AU
9 10 11 12
15 14 13 12 11
R4825 39K
R4823 12K
R4822 4.7K
Q4800
KRC107
R4821 15K
R4820 3.3K
33
39K
R4605
1K
Q4602
KTC3198
10K
R4400
R4402
15K
10 9 8 7 6 5 4 3 2 1 28 27 26 25 24 23 22 21 20 19 18
CN400
TO C_MECHANISM
TO FRONT
- 20 -
R4960
100
Q4751
2SD1012
R4734
4.7K
21 22 23 24 25 26 27 28 29 30
C4731 R4733
L L L L L L
NC Vref VDD CL 1/50 1K
VRIN TRE BASS1 BASS2 OUT
LC75342
1/50 1K
C4831 R4833
R R R R R R
TEST VSS CE DI
SELO VRIN TRE BASS1 BASS2 OUT
10 9 8 7 6 5 4 3 2 1
4.7K
R4834
2SD1012
Q4851
Q4961
MPSA56
17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
Each precaution in this manual should be followed during servicing. Components identified with the IEC symbol
schematic diagram designated components in which safety and performance can be of special significance. When replacing a component identified by
! ! ! and , 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. 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.
Q4701
KRC107M
R4739
8.2K
C4912
220/25
C4732 (FUSE)
C4735
1/50
100/16
1/50 PR496 C4736
C4832 1500mA 1000/16
C4913
3300/25
C4836
1000/16
C4835
100/16
KRC107M
Q4801
8.2K
Q4995
R4839
KTA1271
4.7K
R4954
R4955
47K
IC446
NJM78L05A
1 2 3
5.6
Q4951
KTD2058
1500mA
12.0
9.0
PR495
9.6
Q4992
KTA1271
R4953 Q4993
KRC107M
4.7K
Q4931
KRA102M
Q4930
R4930
CN420
KTC3198 100K
CN441
PRODUCT SAFETY NOTICE
- 21 -
L4981
22UH
R4740
150
L4781
22UH
22UH
R4840
L4881
150
HEAD PHONE
CN443
SP471
LEFT
WOOFER
CN402
CN401
RIGHT
WOOFER
SP481
FU421
T2.5A L 250V
CN216
T4981
CN215
CN422
CN423 AC 230V
50HZ
and mark in the parts list and the
! ! !