- 41 -
- 40 -
SCHEMATIC DIAGRAM (TUNER)
OUT
IN
Y
Y
Y
(TO MAIN)
GND
AM_ANT
NC(GND)
TU-CLK
TU-DATA
TU-CE
TU-DO
TU-L
TU.GND
TU-R
+5.6V
+12V
HP-SW
HP-MUTE
HP-R
HP.GND
HP-L
VDD
TW_LED2
TW_LED1
VDD
TW_LED2
TW_LED1
CLOSE_SW
D.GND
OPEN_SW
SLED+
SLED1
SLED-
SLED+
C2311
C2302
IC231
C2312
R2306
R2304
C2304
R2302
C2301
R2453
R2452
R2454
C2455
C2456
C2454
C2453
X2451
Q2451
L2451
C2452
C2451
C2991
C2992
C2314
C2319
C2320
C2303
R2305
C2322
C2461
R2459
R2458
XF231
XF222
XF221
C2151
R2153
L2151
C2152
R2151
C2330
IC241
R2455
R2201
R2204
Q2201
R2205
C2203
R2203
R2202
R2141
R2140
C2140
Q2140
R2120
R2331 C2332
Q2310
C2327
C2328
R2301
R2307
C2310
R2519
L2501
C2521
L2502
R2503
Q2502
R2504
C2502
C2516
C2515
C2513
C2512
IC251
C2505
C2506
C2504
C2503
R2463
R2462
R2461
C2462
C2463
D2452
D2151
R2712
R2812
C2522
R2464
C2464
C2316
C2309
R2308
C2317
R2309
C2308
C2307
C2315
XF233
C2318
R2311
D2301
R2312
C2324
X2501
L2503
B2101
R2465
C2465
R2114
C2117
CN203
CN241
D2451
SG292
SG291
C2901
C2902
SG293
C2903
L2903
Q2901
Q2902
R2901
R2902
D2466
C2113
C2305
R2711
R2811
CN291
C2131
C2102
CN201
C2130
C2101
U2101
C2306
C2321
C2457
R2103
R2102
AM-ANT AM.GND
FM-ANT
TP11(H)
TP12(E)
0V-TP2
0V-TP1
DO
CE
DI
CLK
G
ND
+12V
5.6V
TU-L
TU-R
HP-MUT
HP-SW1
HP.GND1
HP-L2
HP-R2
HP.GND2
HP-SW2
FM.GND
HP-R1
HP-L1
L2901
L2902
C2904
JW201
R2303
C2201
R2101
C2103
S6801
CN682
CN681
CN683
VDD LED2 LED1 CLS D.GND OPN
SLED+
SLED-
10;50
0.022
LA1844ML
1
2.7K
10K
0.047
3.3K
100;16
1.5K
2.2K
2.2K
0.01
0.01
12P
12P
7.2M
KRA107S
100U
0.01
10;10
220;16
0.01
0.01
0.033
0.033
22;50
10K
1000P
100P
10K
10K
12P
100K
0.047
10K
20P
LC72121M
220
560
1.8K
KTC3193
1.5K
0.01
330
330
10K
68
1000P
KTC3875
3.3K
47K
0.01
KTC3875
10;50
10;50
270
68K
0.047
10K
100U
100P
100U
10K
KRA107S
100K
100P
100;16
0.01
22P
27P
LC72722
100;16
1000P
0.01
10;50
1K
1K
1K
100P
100P
MTZJ3.0B
1SS355
100K
100K
100P
1K
100P
4700P
0.1
22K
4.7;50
39K
0.018
10;50
330P
1000P
270
MTZ6.8B
3.3K
100P
4.332MHZ
270U
8.2K
100;16
100
100P
1SS355
1608SGX
1608SGX
0.01
0.01
1608SGX
1000P
10U
KTD1304
KTD1304
100
100
KDS121E
0.47
0.47
1K
1K
0.1
10;50
ANT.
TERMINAL
0.1
0.01
1
1
1
10K
2.2K
0.1
4.7K
0.01
150
0.01
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
24
23
22
21
20
19
18
17
16
15
14
13
1
2
3
4
5
6
7
8
9
10
11
12
1
2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
8
7
6
5
4
3
2
1
3
2
1
8
7
6
5
4
3
2
1
1
2
HP.GND2 HP.GND2
HP.GND2
HP.GND2
HP.GND2 HP.GND2
HP.GND2 HP.GND2 HP.GND2
HP.GND2
FM IF
AM MIX
AM IF
REG
GND
SD
ST
FM DET
VDD
MUTE
FM/AM
MONO
LCH
RCH
MPX IN
PLL IN
FM
DET OUT
AM
DET OUT
AGC
AM RF
AFC
AM OSC
OSC BU
XIN
CE
DI
CLK
DO
XOUT
NC
AOUT
AIN
PD
VDD
FMIN
AMIN
IFIN
(FM+B)
SD
IO0
IF_REQ
FM
MONO
AM
NC
VSSD
VSSA
VSSX
SYR
CE
DI
CL
DO
RDS-IN
SYNC
T7
T6
Vssd
Vddd
XIN
XOUT
T5
T4
T3
T2
T1
CIN
FLOUT
Vssa
Vdda
MPXIN
VREF
PILOT
CLL OUT
[1/4W]
[1/4W]
[1/4W]
1
2
3
[1/4W]
[1/4W]
HEADPHONE
OSC
IF
+B
VT
GND
AGC
GND
ANT
FM
75ohm
[1/4W]
[1/4W]
SH.GND
(TO FRONT)
(TO LED)
(TO MECHA ASSY)
2.3
4.4
2.3
2.3
4.2
2.0
2.9
2.3
2.2
3.2
3.2
4.8
5.8
4.7
0.7
0
5.8
6.8
4.3
0
0
2.3
2.3
5.8
6.8
0
0
0.1
11.9
12.0
11.7
0
AM 999KHZ
FM 98MHZ
VOLTAGE=
0
0
0
2.4
9.6
1.7
0
0
0
2.0
0.7
0
2.2
5.3
2.4
4.9
2.4
0
0
0
0
0
3.0
0
0
0
4.9
0
0
0
0
0
0
2.4
2.4
4.2
0.4
0.2
0.2
0.2
0
0
0
0
2.4
2.4
4.9
1.6
1.6
0
0
4.2
3.4
0.9
0.9
3.2
0
0.2
0.2
0.4
0.2
4.4
0.1
12.0
4.9
5.8
4.8
0.1
0
0
0.7
0
0
0
1.6
1.5
0
4.9
2.8
2.8
0
4.8
0.6
(UNIT:V)
0
0
6.1
6.8
5.8
6.8
5.8
This is a basic schematic diagram.
PRODUCT SAFETY NOTICE
Each precaution in this manual should be followed during servicing. Components identified with the IEC symbol
!!!
and
mark in the parts list and the 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.
