Sony XR-C2600 Service Manual ▷ View online
17
17
XR-C2600
5-4.
SCHEMATIC DIAGRAM – MAIN Board (2/2) –
• See page 20 for IC Block Diagrams.
(Page 19)
18
18
XR-C2600
5-5.
PRINTED WIRING BOARD – KEY Board –
• Semiconductor
Location
Ref. No.
Location
D900
E-10
D901
E-10
D902
E-10
D903
C-2
D904
B-3
D905
B-3
D906
C-4
D907
A-4
D908
A-2
D910
E-3
IC900
E-7
D904
D905
D908
D903
D906
D907
LCD900
LIQUID CRYSTAL DISPLAY
KEY BOARD
(COMPONENT SIDE)
1-676-261-
11
(11)
R912
R913
R914
R915
R938
R939
R911
R908
A
K
K
A
D900
D901
R916
K
A
D902
R906
R907
C901
C902
C903
C904
R909
R910
C900
K
A
D910
R933
R932
R935
R934
R904
R903
R937
R936
R928
R929
R927
R926
R924
R925
R919
R920
R921
R922
R923
1
IC900
1
2
11
12
CN901
MAIN BOARD
CN600
KEY BOARD
(CONDUCTOR SIDE)
1-676-261-
11
(11)
A
1
2
3
4
5
6
7
8
9
10
11
A
B
C
D
E
F
05
S920
MENU
S919
SOUND
S918
–
.
m
S914
+
>
M
SEEK/AMS
S916
S918
S914
S913
DSPL
DSPL
S912
MODE
S911
ENTER
S917
S915
S910
REP
1
PRST+
DISC+
PRST–
DISC–
S909
SHUF
2
S902
3
S903
4
S904
5
S905
6
S901
OFF
S906
D-BASS
3
2
1
PL901
(LCD BACK LIGHT)
PL900
(LCD BACK LIGHT)
S900
ROTARY ENCODER
VOLUME/BASS/TREBLE/
BALANCE/FADER CONTROL
52
1
D904, 905, S916
SOURCE
D903, 906-908
(ILLUMINATION)
16
17
32
33
48
49
64
(Page 15)
19
19
XR-C2600
5-6.
SCHEMATIC DIAGRAM – KEY Board –
(Page 17)
2.5 Vp-p
28
µ
s
• Waveform
1
IC900
y;
(OSC)
20
20
• Waveforms
– MAIN Board –
– MAIN Board –
1
IC1
qs
(OSC2)
2
IC1
qh
(XO)
3
IC130
1
(X OUT) (FM/AM Mode)
3.2 Vp-p
54.7 ns
5.4 Vp-p
30.6
µ
s
184 mVp-p
98 ns
• IC Block Diagrams
– MAIN Board –
– MAIN Board –
IC130
TB2118F-EL-S
VDD
AMP
AMP
AMP
VDD2
1
2
3 4 5 6
7
8
9
10
24 23
22 21
20
19
18
17
16 15
11
12
14 13
XO
OSC
CE
DIN
CK
DOUT
SR
I/O-1
I/O-2
OUT-1
OUT-2
VDD2
IFC
VDD
FM IN
AM IN
D-GND
FM CP OUT
VT
AM CP OUT
VCC
REG
A-GND
XI
SERIAL
INTERFACE
I/O
PORT
OSCILLATOR
ON/OFF
BUFFER
REFERENCE
DIVIDER
PHASE
COMPARATOR
20BIT
IF COUNTER
PRESCALLER
12BIT
PROGRAMMABLE
COUNTER
+
–
REGULATOR
18BIT
18BIT
22BIT
40BIT SHIFT
REGISTER
REF
VCC
SEEK/RECP
SEEK/RECP
+
–
SIG
4BIT SWALLOW
COUNTER
OUTPUT
PORT
+
+
IC800
MM1175XFF
RESET
SWITCH
BATT
SWITCH
1
2
3
4
5
6
7
8
9
10
14
13
12
11
BUS ON
OUT
RESET
OUT
BATT
CLK
OUT
VREF
DATA
IN/OUT
GND
BATT
CHECK
CHECK
CLK
IN
IN
BUS ON
IN
IN
RESET
IN
IN
VCC
DATA IN
DATA OUT
IC400
LC75374E
+
–
–
+
–
–
+
–
–
+
–
+
–
+
–
–
+
–
–
+
–
+
–
+
–
+
–
–
+
–
–
+
–
+
–
DECODER
LATCH
SHIFT
REGISTER
CONTROL
–
+
+
–
–
1
2
3 4
5
6 7 8
9 10
20
19
18
17
16
15
14
13
12
11
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
43
44
LSELO
L4
L3
L3
L2
L1
VDD
R1
R2
R3
R4
R4
RSELO
RVRIN
RCOM
RT1
RT2
RT3
RTOUT
RSIN
NC
NC
RSB1
RSB2
RFIN
RFOUT
RROUT
VSS
CL
DI
CE
VREF
LROUT
LFOUT
LFIN
LSB2
LSB1
NC
NC
LSIN
LTOUT
LT3
LT2
LT1
LCOM
LVRIN
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