XC-L77
10
A
B
C
D
1
2
3
4
1
2
3
4
T1 : POWER
TRANSFORMER
: ATS7256
T2 : ATT7056
PHONES
C
1/2,
C
2/2
MAIN UNIT (AWU7374)
CD MECHA
(KSL-2130CCM)
C
FM/AM
TUNER
UNIT
(AXQ7226)
A
RF UNIT
(AWU7380)
B
SECONDARY UNIT
(AWU7378)
J
BLUE IND. UNIT
(AWU7385)
F
KEYL UNIT
(AWU7384)
E
KEYR UNIT
(AWU7383)
D
AUX UNIT (AWU7381)
N
HP UNIT
(AWU7382)
M
STBY SW UNIT
(AWU7386)
G
IC1101
(CXA1821M)
IC1201
(CXD2587Q)
Q1401
IC3001
(M62420FP)
IC3071
(BA4560F)
IC3201
(NJM4558MD)
OTHER
CH
IC3111
(NJM4558MD)
IC3101
(BU4052BCF)
IC5521
(ICP-N20)
(0.8A)
IC1301
(M56758FP)
RF AMP.
SERVO
CONTROL
BUFFER
FUNCTION
SW
AMP.
MUTE
DRIVER
16
43
72
1
3
7
2
1
3
IC3501
(NJM4558MD)
1
3
13
11
15
14
12
T2
D21
D31
D61
UN+12
-B
+B
UN-6
UN+5
Q61
D11
D81
RY81
IC81
IC2
IC1
IC4
IC5
IC3
IC6
1
LPF
E-VOL.
6
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM