McIntosh C45, Руководство по обслуживанию

Страница: 16 / 42

29 30
DISPLAY
749851 SH 2 OF 2
3B
J6:2
J6:3
J6:4
J6:7
J6:8
J6:9
2E
2E
2E
2E
2E
2E
2E
2E
2E
2E
2E
2E
2E
2E
SS
5V
5V
5V
0V
0V
5V
5V
0V
5V
5V
5V
5V
5V
0V
5V
0V
GND
GND
5V
C1
C0
R1
R0
R0
7
7
7
7
7
7
7
TO
MAIN
J6:1
J6:5
J6:6
2E
2E
2E
2E
2E
2E
2E
2E
2E
0V
5V
0V
5V
5V 5V
5V
0V
5V
10
R4
TRIM
5V
5V
0V
R2
R3
7
7
7
7
7
TO
PUSHBUTT
ON
J6:12
J6:13
J6:14
J6:17
J6:18
J6:19
J6:22
J6:23
TUNER_SS
0V
SCLK
LAMP_ON
SDA
SCL
MPX
5V
WDT
5V
0V
5V LAMP_ON
0V
.1uF
C1
1
5V
0V
.1uF
C8
5V
5V
5V
5V
5V
5V
0V
5V
5V
0V
5V
ENTER
TONE
5V
IR_EXT
0V
INPUT
129467
CONVERTED DATA
049851
5V
5V
5V
5V
5V
IR_FP
5V
FRONT
0V
0V
5V
5V
J3:7
J3:4
J3:2
J3:1
J3:10
J3:8
J3:6
J6:10
J6:11
J6:16
J6:15
J6:21
J6:20
-24V
5V
10
R8
10uF
C9
3
1
2
Q1
ADCE
5V
DS5
5V
FIL2
10
R12
10uF
C12
IR_FP
WDT
ADCE
SCLK
DS7 DS8
5V
100k
R26
0V
220pF
C14
1k
R16
10k
R3
5V
5V
1 3
2
Y1
12.0MHz
10k
R7
5V
0V
0V
0V
5V
5V
CONTROLLER
DS10
5V
5V
5V
5V
0V
0V
5V
5V
STANDBY/ON
SETUP
BYPASS
IR_FP
0V
SELECT
5V
10
9
8
U4:C
0V
5V
5
4
6
U4:B
10
9
8
U8:C
FRONT
PANEL IR
PANEL IR
0V
5V
5V
J3:9
J3:3
J3:11
J3:12
J3:5
100
R18
100
R20
100
R21
100
R19
10uF
C15
7
RST
6
SCL
8
VCC
5
SDA
2 RST
3 WP
1 WDI
4 GND
U2
DS3
13
12
11
U8:D
SDATA
TUNER_PRESENT
CLOCK
J1:21
VOLCK
IR MUTE
IRMUTE
VOLUME CE
VOLUME
IR_EXT
IR_EXT
DATA PORTS
J1:16
IR_DATA
VOLCE
VOLDA
595 CLOCK
595CE
IRMUTE
SDATA
SDATA
-24V
595CE
SCLK
J1:11
SCLK
PLLCE
TUNER_SS
.6V
PLLCE
UPDATE
J1:6
KEYPAD_UPDATE
MPX
D4
MPX
FIL2
FIL1 J1:1
FIL1
324
R17
595CE
SDATA
MTGPAD3
MTGPAD2
SCL
SDA
MICROPROCESSOR
ILLUMINATION
08/28/02 res
P1169 C45 Display 2 of 2
VFDA
VFCE
.1uF
C10
IR_DATA
J2:11
J2:5
SIGNAL STRENGTH
A/D CONVERTER
.1uF
C13
TUNER
VOLUME
PRESENT
GND J1:23
J1:22
EXT SENSOR
EX DATA
DATA
IR TO
J1:18
J1:19
J1:17
VOLDA
VOLCE
VOLCK
SDATA2
VFD -24V
J1:13
J1:14
J1:12
SDATA2
SDATA
SCAN_STOP
PLLCE
KEYPAD
SCAN STOP
J1:8
J1:9
J1:7
2.21k
R25
DS6
SCAN_STOP
FIL2
FIL1
J1:4
J1:3
J1:2
100
R13
3
4
2
1
K1
324
R23
324
R24
SDATA2
324
R14
SCLK
5V
MTGPAD1
2 3 4 5 6 7 8 9
1
R10
8x22k
47uF
C7
DS9
FRONT PANEL
WATCHDOG TIMER / RESET
rev 05/13/03 res
DS4
DS11
DS2
2
1
3
U4:A
DATA PORT CONTROL
TUNER_PRESENT
VFCL
J2:9
J2:4
J2:10
J2:6
KEYPAD_UPDATE
J2:12
J2:1
J2:3
J2:2
J2:7
J2:8
J1:20
8
7
6
5 1
2
3
4
OUT
CLK
I/O
-
+
Vcc
GND
REF
IN
ALG
REF
DATA
CS
U6
TREBLE
BASS
TONE
J3
J1:15
J1:10
J1:5
324
R15
6
3
1
12
11
10
7
5
4
2
15
14
9
13
QF
QG
QD
QA
QB
OE
QH
QC
QE
LCLK
SQH
RESET
SCLK
DATA
U5
100
R22
2 3 4 5 6 7 8 9
1
R6
8x22k
6
6
5
5
3 VOL_B
1 5V
4 GND
2 VOL_A
VOLUME
CONTROL
S2
2
1
3
U8:A
5
4
6
U8:B
2 3 4 5 6 7 8 9
1
R5
8x10k
13
12
11
U4:D
20
VSS
40
VDD
21
P2.0
19 XT1
23
P2.2
24
P2.3
17 P3.7
16 P3.6
26
P2.5
14 P3.4
28
P2.7
29
PSE
12 P3.2
11 P3.1
31
EA
9 RST
33
P0.6
7 P1.6
34
P0.5
6 P1.5
36
P0.3
4 P1.3
38
P0.1
2 P1.1
39
P0.0
1 P1.0
22
P2.1
25
P2.4
15 P3.5
18 XTO
27
P2.6
30
ALE
32
P0.7
35
P0.4
5 P1.4
8 P1.7
10 P3.0
13 P3.3
37
P0.2
3 P1.2
U3
3
1
2
4 5
CCW
CW
S1
2 3 4 5
1
R27
4x22k