Schematic Diagram (Front , Tuner) - Sanyo DC-TS750 Service Manual

SCHEMATIC DIAGRAM (FRONT , TUNER)

R6043 R6042 R6041
680 560 470
D6030
1SS133
Q6000
KRA102M
S6001
1AV4S10B5440N
3 2 1
DS601
SPS-440-1G
44 43 42 41 40 39 38 37 36
4 5
000
LED1
LED2
2 3 1
LED3
R6001
82K LED4
R6002 2.2K OSC
R6032 IC601
DOUT DOUT
4.7K UPD16315
R6003 100K
DIN DIN
R6004 100K
CLK CLK
R6005 100K
STB
STB
R6006 10K
KEY1 KEY1
KEY2
C6020 R6007
1000P 10K
C6021
1000P 12 13 14 15 16 17 18 19 20 21 22
39 38 35 34 33 32 31 30 29 28 27 26 20 19 18 17 16 15 14 13 12 11 10 9
1AV4T41B05900 FL601
This is a basic schematic diagram.
XF211
2.9
0
1 2 3 1
TO MAIN PWB
R2111
10
C2123
0.01
C2101
1000P
CN201
ANT
TERMINAL
FM
75ohm
AM
LOOP
C2130
1000P
C2131
0.01
SH_GND
CN202
TO CN499
11.7
0
Q2451
35 34
KRA107M
12.0
G1
S18/G11
S17/G12
VEE
S16/K16 S16
S15/K15 S15
S14/K14 S14
S13/K13 S13
S12/K12
S12
S11/K11 S11
S10/K10
S10
0
1.6
S6050
24 23
FUNCTION
KEY1
XOUT NC
1SS133 IC241
D6040
XIN VSSX
1 2
1.6
0
8 7 6 5 2 1
1AD0B10D1140A
- 56 -
IC211
TA8176S
1.5 0.7 5.4 5.4 1.9 5.4 5.0 5.3 5.2
0 0
0 0 0 0 0 0 0 0 0
2 3 4 5 6 7 8 9 10 11 12
XF221 XF222
C2105
R2104
1000P 100K
L2101
C2152
0.047
0.1
11.9
R2455
220
C2457
1;50-P
C2456
0.01
4.2 1.5 0
0 3.4 0 1.6 0 0 0
0.9 0.9 3.2
22 21 20 19 18 17 16 15 14 13
VSSA AOUT AIN PD VDD FMIN AMIN VSSD FM IFIN
LC72121M
CE DI CLK DO MW/LW MONO AM IF_REQ SD NC
3 4 5 6 7 8 9 10 11 12
4.8 0 0.7 0
0.2 0.2 0.4 4.4 0.1 4.9
0.1
0 0.2 12.0 5.8
R2459
10K
D2454
1SS133
FM 98MHZ
VOLTAGE= (UNIT:V)
AM 999KHZ
C2306
1;50
XF231
C2322
XF233
1000P C2305
0.47;50
5.8 5.8 5.8 4.7
2.3 2.3 2.3 0
6.8 0 4.3 6.8 6.8 0 0.7
1 2 3 4 5 6 7 8 9 10 11 12
FM IF AM MIX REG AM IF GND SD ST FM DET VDD MUTE FM/AM MONO
IC231 LA1844ML
OSC BU AM OSC AFC AM RF AGC AM FM PLL IN MPX IN PILOT RCH LCH
DET OUT DET OUT CLL OUT
24 23 22 21 20 19 18 17 16 15 14 13
4.4 5.8 2.3 2.3 4.2 2.0 2.9 2.0 2.3 2.2 3.2 3.2
5.3 6.8 2.2 0 0.7
C2317
4.7;50
R2153
100K
C2307 R2308
C2151
12P 22K
10;50
C2308 R2309
0.018 39K
D2451
CHASSIS
1SS133
-GND
1AD0B10D1140B
PRODUCT SAFETY NOTICE
Each precaution in this manual should be followed during servicing. Components identified with the
IEC symbol in the parts list and the schematic diagram designated components in which safety
! ! !
can be of special significance. When replacing a component identified by
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.
- 57 -
R2306
2.7K
C2321
1;50
4.8
R2301
5.8
270
R2311
270
C2319
0.018
C2320
0.018
R2712
100K
R2812
100K
L2503
270U
(TO MAIN)
+12V
11 FRONT SIDE
C2903 10 5.6V
0.01
TU_R
9
A_GND
8
7 TU_L
R2464 1K
TU_DO
6
R2461 1K
5 TU_CE
R2462 1K
TU_DATA
4
R2463 1K
TU_CLK
3
2 RDS
DIST
1 BACK SIDE
000
CN241
! ! ! , use only the replacement