Sony ICD-UX71 / ICD-UX71F / ICD-UX81 / ICD-UX81F / ICD-UX91F Service Manual ▷ View online
ICD-UX71/UX71F/UX81/UX81F/UX91F
ICD-UX71/UX71F/UX81/UX81F/UX91F
21
21
4-10. SCHEMATIC DIAGRAM – MAIN Section (3/3) –
B
11
F
2
E
8
D
7
4
I
3
A
G
5
6
C
9
10
J
H
12
1
13
CN4001
11
AUDIO
MAIN
13
A
BOARD
BOARD
(3/3)
(1/3)
16
BOARD
MAIN
(1/3)
MAIN
BOARD
(1/3)
0
1.8
1.8
1
1.8
1
SDA
LED_G
DGND (CPU_DAMP_GND)
HOLD
CPU_PLL2_2.8
VBUS
CN8002
60P
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
DGND
FM_INT
BATT_CHARGE_LEVEL
UNREG_2.4
S8001
1M
R8020
0.1u
C8013
0.1u
C8014
S8000
DAMP_SEL
SDI1
SCK1
SDO1
LCD_RESET
DOUT
CN8001
4P
1
VBUS
2
D-
3
D+
4
GND
1u
C8004
LF8001
1
3
4
2
10u
C8003
JL8000
MM3271FURE
IC8000
1 CE
2 VSS
2 VSS
3
VOUT
4
VIN
1M
R8000
CPU_VDD_1.0
XC6221B102NR
IC8001
1 CE
2 VSS
2 VSS
3
VOUT
4
VIN
D8002
CDZT2R12B
1
2
0.1u
C8001
0.1u
C8000
RB161VA-20
D8001
DP
C8015
1u
DM
1M
R8001
0.1u
C8002
DGND
CPU_VDD_3.1
DPC
CPU_V
AUDIO_POWER_ON
SP/HP_SEL
SP_SHDN
LRCK
MUTE
BCK
DATA
DX/LO
CHARGE_ON
SCL
SDI0
HP_INSERT
MIC_INSERT
SDO0
SCK0
BATT_LEVEL_MEASURE
KEY_WAKEUP
CPU_32K
AIRQ
CPU_POWER_ON
LED_R
BACKLIGHT
CHARGE_MEASURE_ON
FM_POWER_ON!
CPU_LOUT
CPU_ROUT
CS2
CS3
CS3
LCD_A0
BATT_LEVEL
KEY_AD0
KEY_AD1
KEY_AD1
BATT_LEVEL
SDA
MIC_INSERT
SDI1
VCC_3.3
LRCK
CS2
SDIO
SDO0
HOLD
DOUT
DOUT
AUDIO_POWER_ON
CPU_POWER_ON
CHARGE_ON
SP/HP_SEL
AIRQ
CPU_32K
KEY_AD1
SCL
BCK
KEY_WAKEUP
SCK0
HP_INSERT
DATA
CPU_ROUT
MUTE
SP_SHDN
KEY_AD0
CPU_DAMP_GND
CPU_DAMP_GND
CS3
DAMP_SEL
LCD_A0
VBUS
VBUS
DGND
DGND
VBUS
LED_R
DGND
CPU_VDD_3.1
LED_G
CPU_VDD_3.1
CPU_PLL2_2.8
DGND
BACKLIGHT
FM_INT
FM_POWER_ON
DX/LO
SDO1
BATT_CHARGE_LEVEL
CPU_DAMP_GND
CPU_LOUT
BATT_LEVEL_MEASURE
UNREG_2.4
UNREG_2.4
DPC
ON
OFF
CHARGE_MEASURE_ON
SCK1
DGND
LCD_RESET
UNREG_2.4
IC8000
CPU VDD +1.0V REG
(3/3)
MAIN BOARD
CPU VDD +1.0V REG
IC8001
HOLD
ON
OFF
(USB)
CN8001
(Page 19)
(Page 19)
(Page 19)
(Page 17)
ICD-UX71/UX71F/UX81/UX81F/UX91F
ICD-UX71/UX71F/UX81/UX81F/UX91F
22
22
19
24
GND
LINE OUT L
20
21
22
23
PGND
PGND
PGND
PGND
12
9
PGND
FLL
TUNING
PGND
PGND
PGND
PGND
TO
EACH BLOCK
TO
EACH BLOCK
TO
EACH BLOCK
11
10
7
8
SCL
BUFFER
AMP
FM
DEMODULATOR
STEREO
DECORDER
QUADRATURE
OSCILLATOR
POWER
MANAGEMENT
DE-
EMPHASIS
FM SELECTIVITY
FILTER
TUNING
SYSTEM
RF AND FM
QUADRATURE
MIXER
LINE SW
AND
MUTE
VOLTAGE
STABILIZER
1
FM ANT1
2
AM ANT2
3
VIO
4
VDD
5
INT
6
SDA
18
LINE OUT R
17
MPX
16
NC
15
VSTABI
14
NC
13
VCC
DIGITAL INTERFACE
I
2
C CONVERSION
• IC Block Diagrams
IC1002 LV24230LS-TLM-E (AUDIO Board (1/3))
IC1003 LM4916LDX/NOPB (AUDIO Board (1/3))
IC1004 SN74LVC2G66YZPR (AUDIO Board (1/3))
IC2002 TK77335AM4 (AUDIO Board (2/3))
IC2004 LTC3526LEDC (AUDIO Board (2/3))
3
1
1A
1B
2C
GND
VCC
1C
2B
2A
4
2
5
7
6
8
1
2
3
4
5
10
9
8
7
6
BIAS
GENERATOR
CLICK-POP
AND
MODE CONTROL
LOGIC
IN A
SD
MUTE
BYPASS
IN B
VDD
VOA
SE/BTL
VOB
GND
VIN
VREF
500kΩ
7
8 NC
VOUT
6 NC
5 NP
2
NC 1
VDD 3
VCONT 4
ON/OFF
CONTROL
THERMAL
&
OVER CURRENT
PROTECTION
1
SW
2
GND
3
VIN
5 FB
6 VOUT
GATE DRIVERS
AND
ANTI-CROSS
CONDUCTION
VBEST
MODE
CONTROL
PK
COMP
LOGIC
CSS
VREF
ZERO COMP
VOUT
VB
VREF
WELL
SWITCH
VRER
UVLO
UVLO
1MHz
OSC
THERMAL
SHUTDOWN
START-UP
CLAMP
SLOPE COMP
ERROR AMP
SLEEP COMP
4M
TSD
CLK
WAKE
ZERO
PK
ANTI-RING
VSEL
4 SHDN
SHUTDOWN
SHUTDOWN
ICD-UX71/UX71F/UX81/UX81F/UX91F
23
IC2003 XC9128D45CDR (AUDIO Board (2/3))
IC2005 XC9226A18CMR (AUDIO Board (2/3))
5
PWM
COMPARATOR
1
ERROR
AMP
BUFFER
DRIVER
FO
3
BAT
4
EN
PGND
2
LX
10
9
VOUT
MODE
8 FB
7 AGND
6 AEN
PWM/PFM
CONTROLLER/LOGIC
CURRENT SENSE,
LIMIT,PFM
PHASE
COMPENATION
VREF WITH
SOFT START
RAMP WAVE
GENERATOR
EN.
THERMAL
SHUTDOWN
CURRENT LIMIT,
THERMAL,
SOFT START,
EN
OSC
MODE
1
VIN
2
VSS
3
CE/MODE
5 LX
CURRENT
FEEDBACK
CURRENT
LIMIT
SYNC
BUFFER DRIVE
PHASE
COMPENSATION
PWM/PFM
SELECTOR
RAMP WAVE
GENERATOR
OSC
CE/MODE
CONTROL
LOGIC
LOGIC
ERROR
AMP
U.V.L.0
VREF WITH
SOFT START,
CE
R2
R1
4 VOUT
R3
R4
ICD-UX71/UX71F/UX81/UX81F/UX91F
24
IC3000 RTC-4574NB (AUDIO Board (3/3))
IC2013 NJM2746RB1(TE2) (AUDIO Board (2/3))
IC5003 XC6213B152GR (MAIN Board (1/3))
1
2
AOUT
A–IN
A+IN
GND
3
4
8
7
VCC
BOUT
B–IN
B+IN
6
5
1
OSC
32.768kHz
GND
FCON
NC
CE1
DATA
CLK
TIRQ
AIRQ
CEO
FOUT
VDD
OUTPUT
CONTROLLER
CLOCK and CALENDAR
TIMER REGISTER
ALARM REGISTER
CONTROL REGISTER
SHIFT REGISTER
BUS
INTERFACE
CIRCUIT
DIVIDER
CONTROL LINE
6
5
8
7
21
22 NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
19
20
17
18
15
16
14
10
11
9
2
4
3
INTERRUPTS
CONTROLLER
1
CE
VIN
VOUT
2
VSS
EACH
CIRCUIT
ERROR
AMP
R2
R1
ON/OFF
CONTROL
VOLTAGE
REFERENCE
CURRENT
LIMIT
4
3
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