Sony NW-E503 / NW-E505 / NW-E507 Service Manual ▷ View online
21
21
NW-E503/E505/E507
NW-E503/E505/E507
4-9. PRINTED WIRING BOARD – SW BOARD –
:Uses unleaded solder.
GROUP
HOLD
S707
S708
S706
S704
GROUP
HOLD
DISP
S701
S709
SEARCH
A
MAIN BOARD
CN701
(Page 14)
>
.
1-866-772- (11)
11
1-866-772- (11)
11
1
2
9
10
SW BOARD
SW BOARD
(SIDE A)
(SIDE B)
22
22
NW-E503/E505/E507
NW-E503/E505/E507
•
IC Block Diagrams
IC301 TB2173FTG
– MAIN Board –
IC401 RV5C348A-E2
IC503 MM3032JULE
IC505, IC506 TPS62200DBVR
IC507 PST3629UL
IC508 PST3624UL
34
MUTE SW
C-SW
OUTA
MODE
SWITCH
VOLUME
VOLUME/SWITCH
/PORT CONTORL
2
35
PW SW
36
RESET
37
CK
38
DATA
39
STB
43
P1
44
P2
40
VDD
41
PRE NFA
33
IN2A
31
PRE INA
29
PRE INB
28
VOL OUTA
30
VOLUME
IN2B
26
IN1A
25
VOL OUTB
27
GND
32
PRE GND
MODE TC
23
+
–
+
–
42
PRE NFB
BEEP OUTA 1
BEEP OUTB 6
VCC2 7
BST TC 8
AGC DET 9
AGC IN 10
OUTC 3
PW GND 4
OUTB 5
ATTENUATOR
IN1B
24
ATTENUATOR
22
MUTE TC
21
BEEP
20
VCC1
19
BIAS IN
18
BEEP
OUT ADJ
17
RF
16
LPF1
14
LPF2
12
BST NF
13
BIAS OUT
15
BIAS
+
–
+
–
+
–
BST AGC
BST OUT 11
PORT
32kHz
OUTPUT
CONTROL
OSC
DETECT
DIVIDER
CORRECTION
TIME COUNTER
(SEC, MIN, HOUR, WEEK, DAY, MONTH, YEAR)
COMPARATOR_D
INTERRUPT
CONTROL
SHIFT
REGISTER
COMPARATOR_W
ALARM_W REGISTER
(WEEK, MIN, HOUD)
ALARM_D REGISTER
(MIN, HOUR)
OSC
DIV
ADDRESS
DECODER
DECODER
ADDRESS
DECODER
DECODER
VOLTAGE
DETECT
I/O
CONTROL
1
32K OUT
2
SCLK
3
SO
4
SI
5
VSS
6 /NTR
7 CE
8 OSCOUT
9 OSCIN
10 VDD
1
GND
2
VDD
4
CE
10k
3
VOUT
Vref
+
–
Current Limit
1
V1
2
GND
3
EN
5
SW
4
FB
R1
REF
Skip Comparator
Conpensation
Gm
VREF=0.5V
Comparator High
Comparator
S
R
Comparator Low
Comparator Low2
+
+
–
–
Undervoltage
Lockout
Blas Supply
V
I
Sawtooth
Generator
+
–
V(Comp)
Control Logic
Comparator High
Comparator Low
Comparator Low2
1MHz
Oscillator
Soft Start
+
–
REF
Current Limit Comparator
+
–
Driver
Shoot-Through
Logic
+
–
OUT
4
CD
3
+
–
VREF
VDD 2
GND 1
OUT
4
CD
3
+
–
VREF
VDD
R
D
2
GND 1
23
NW-E503/E505/E507
IC509 XC6219B232MR
IC2001 TEA5767HN
IC2002 XC6219B272MR
1 VIN
2 VSS
R1
each circuit
R2
Current
Limit
3 CE
4
NC
5
VOUT
+
–
Voltage
Reference
ON/OFF
Control
GAIN
STABILIZATION
RESONANCE
AMPLIFIER
1/Q-MIXER
1st FM
LIMITER
POWER
SUPPLY
SOFT
MUTE
IF
COUNTER
CRYSTAL
OSCILLATOR
MUX
Iref
SDS
programmable divider output
pilot
mono
reference frequency divider output
MPX
DECODER
LEVEL
ADC
IF CENTER
RREQUENCY
ADJUST
SOFTWARE
PROGRAMMABLE
PORT
I C-BUS
AND
3-WIRE BUS
AGC
VCO
TUNING SYSTEM
N1
÷
2
DEMODULATOR
2
3
4
5
6
7
8
9
13
12
15
16
17
18
19
22
23
24
25
26
27
28
29
32
33
34
35
36
37
38
39
14
11
1,10,20,,21,,30,31,40
2
CPOUT
VCOTANK1
VCOTANK2
VCC(VCO)
DGND
VCCD
DATA
CLOCK
NC
WRITE/READ
BUSMODE
BUSENABLE
SWPORT1
SWPORT2
XTAL1
XTAL2
PHASEFIL
PILFIL
VAFL
VAFR
TMUTE
MPXO
VREF
TIFC
LIMDEC1
LIMDEC2
IGAIN
AGND
VCCA
RFI1
RF GND
RFI2
TAGC
LOOPSW
1 VIN
2 VSS
R1
each circuit
R2
Current
Limit
3 CE
4
NC
5
VOUT
+
–
Voltage
Reference
ON/OFF
Control
24
NW-E503/E505/E507
• IC Pin Function Description
MAIN BOARD IC2001 TEA5767HN (LOW VOLTAGE STEREO RADIO)
MAIN BOARD IC2001 TEA5767HN (LOW VOLTAGE STEREO RADIO)
Pin No.
Pin Name
I/O
Description
1
NC1
—
Not used
2
CPOUT
O
Charge pump output of the synthesiser PLL
3
VCOTANK1
O
VCO tuned circuit output 1
4
VCOTANK2
O
VCO tuned circuit output 2
5
VCCVCO
—
VCO supply voltage
6
DGND
—
Ground terminal
7
VDIG
—
Digital supply voltage
8
DATA
I/O
Bus data line input/output
9
CLOCK
I
Bus clock line input
10
NC2
—
Not used
11
WRITE/READ
O
Write/read control for the 3-Wire bus
12
BUSMODE
I
Bus mode select input
13
BUSENABLE
I
Bus enable input
14
SWPORT1
—
Software programmable port 1 (Not used)
15
SWPORT2
—
Software programmable port 2 (Not used)
16
XTAL1
—
Crystal oscillator input 1 (Not used)
17
XTAL2
I
Crystal oscillator input 2
18
PHASEDET
—
Phase detector loop filter
19
PILDET
—
Pilot detector lowpass filter
20
NC3
—
Not used
21
NC4
—
Not used
22
VAFL
O
Audio left output
23
VAFR
O
Audio right output
24
TMUTE
—
Time constant for the softmute
25
MPXOUT
—
FM demodulator MPX out (Not used)
26
VREF
—
Reference voltage
27
TIFCENTER
—
Time constant for IF centre adjust
28
LIMDEC1
—
Decoupling IF limiter 1
29
LIMDEC2
—
Decoupling IF limiter 2
30
NC5
—
Not used
31
NC6
—
Not used
32
IGAIN
—
Gain control current for IF filter
33
AGND
—
Ground terminal
34
VCC
—
Analog supply voltage
35
RFIN1
—
RF input 1
36
RFGND
—
Ground terminal
37
RFIN2
—
RF input 2
38
CAGC
I
Time constant RF AGC
39
LOOPSW
O
Switch output of synthesiser PLL filter
40
NC7
—
Not used
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