DOWNLOAD Sony SAVA-500 / SS-CN16 / SS-SR16 Service Manual ↓ Size: 3.97 MB | Pages: 40 in PDF or view online for FREE

Model
SAVA-500 SS-CN16 SS-SR16
Pages
40
Size
3.97 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / S/M SAVA-500/SS-CN16/SR16 99
File
sava-500-ss-cn16-ss-sr16.pdf
Date
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Sony SAVA-500 / SS-CN16 / SS-SR16 Service Manual ▷ View online

21
21
SAVA-500/SS-CN16/SR16
5-11.
SCHEMATIC  DIAGRAM  – DISPLAY/LED/KEY Boards –
•
 See page 22 for Waveform.
(Page 14)
22
22
• Waveforms
– MAIN Board –
1
IC400 
#¢
 (OSC)
– DISPLAY Board –
1
IC501 
#∞
 (X2)
3.6 Vp-p
118 ns
5.5 Vp-p
194 ns
• IC Block Diagrams
– MAIN Board –
IC201 – 203
LC75373ED
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
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
44
LSELO
L4
L3
L2
L1
VDD
R1
R2
R3
R4
RSELO
RVRIN
RCOM
RT1
RT2
RT3
RTOUT
RSIN
RS1
RS2
RS3
RSOUT
RFIN
RFOUT
RROUT
VSS
CL
DI
CE
VREF
LROUT
LFOUT
LFIN
LSOUT
LS3
LS2
LS1
LSIN
LTOUT
LT3
LT2
LT1
LCOM
LVRIN
IC400
CXA8081S
R
B
R B
DC-RS
AGND
DC-OT
NR-R
NR-C
RS-OUT
LS-OUT
R-OUT
L-OUT
R
B
VSS
CLK
D
ATA
ENABLE
DC-LS
DC-IN
VCC
L-IN
R-IN
S-IN
VREF
FCL-IN
FCR-IN
FCLS-IN
FCRS-IN
OSC
VDD
PDM
PDM-COUT
SRA1-8K
20KH-L.P.F.
DEC
5K/7K-L.P.F.
B-NR
R-STEREO
VOL/MUTE
RS-TRIM
LS-TRIM
1
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
INV-PHASE
R+DELAY
L+DELAY
-6dB
L+R
L-R
P
B
P
B
20K
20K
20K
20K
23
IC401
CXA8079S
48
VCS2
VCS1
VCS-TH
L+R-RCT
L-R-RCT
DCUT
DCUT
R-BPF3
R-BPF2
R-BPF1
CT
-OUT2
CT
-IN2
MIXOUT
C-OUT
S-OUT
R-OUT
L-OUT
VCC
CM-CAP
FCC-IN2
ENABLE
D
ATA
CLK
OSC1
NS-BPF1
NS-BPF2
VREF
S-DCUT
C-DCUT
L-DCUT
R-DCUT
VREF-BUF
L-IN
R-IN
GND
CT
-OUT1
CT
-IN1
FCC-IN1
L-BPF1
L-BPF2
L-BPF3
DCUT
DCUT
R-RCT
L-RCT
VLR-TH
VLR1
VLR2
47 46 45
44 43
42
41
40
39
38
37
36
35
34
33
32
31
30 29 28
L+R-RECT
27
26
25
P.S
VCS-LOG
OSC
DEC
N-GEN
N-BPF
N-OH
DIV
BAL-DET
BALCONT
VREF
VR
VR
VCRX8
COMB-NET
CMODE
SMUTE
C-TRIM
P
B
P
B
P
B
P
B
R
B
R
B
R-B.P.F.
L-B.P.F.
L-R-RECT
R-RECT
L-RECT
VLR-LOG
DUAL-TIME
P.S
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
IC701
µPC1237HA
1
2
3
4
5
6
7
8
OVER LOAD DET
F/F
OFFSET DET
LATCH/
AUTORESET
V
CC
 ON
MUTE
AC OFF
DET
OVER LOAD DET
OFFSET DET
AUTO RESET
AC OFF DET
GND
RELAY  DRIVE
VCC ON MUTE
VCC
24
5-12.
IC  PIN  FUNCTION  DESCRIPTION
•
 DISPLAY BOARD  IC501  
µ
PD78043FGF-059-3B9 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1 to 7
7G to 1G
O
Gird drive signal output to the fluorescent indicator tube (FL501)
8
VDD
—
Power supply terminal (+5V)
9
POWER RY
O
Relay drive signal output for the power on/off control    “H”: relay on (power on)
10
SUR CE
O
Serial chip enable signal output to the dolby surround pro-logic circuit (IC400, 401)
“H” active 
11
VOL LR CE
O
Serial chip enable signal output to the LC75373ED (IC201) (for L/R-ch signal)     “H” active
12
VOL CSW CE
O
Serial chip enable signal output to the LC75373ED (IC203) (for 5.1ch input center/woofer signal) 
“H” active
13
VOL SR CE
O
Serial chip enable signal output to the LC75373ED (IC202) (for wireless rear speaker signal)
“H” active
14
S CLOCK
O
Serial data transfer clock signal output to the dolby surround pro-logic circuit (IC400, 401) and 
LC75373ED (IC201 to IC203)
15
S DATA
O
Serial data output to the dolby surround pro-logic circuit (IC400, 401) and LC75373ED (IC201 to 
IC203)
16
—
O
Not used (pull down)
17
RESET
I
System reset signal input from the reset signal generator (IC502, Q501)     “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
18
SEL A
O
Input select signal output to the MC14052BCP (IC101)    *1
19
SEL B
O
Input select signal output to the MC14052BCP (IC101)    *1
20
AVSS
—
Ground terminal (for A/D converter)
21
LR MUTE
O
Line muting on/off control signal output for the front side speaker    “L”: muting on
22
C MUTE
O
Line muting on/off control signal output for the center side speaker    “L”: muting on
23
S MUTE
O
Line muting on/off control signal output for the rear side speaker    “L”: muting on
24
SW MUTE
O
Line muting on/off control signal output for the sub woofer speaker    “L”: muting on
25
KEY1
I
Key input terminal (A/D input)
S501 to S504 (INPUT, S.WOOFER, SURROUND, CENTER MODE keys input)
26
KEY0
I
Key input terminal (A/D input)    S505, S506 (MASTER VOL +/– keys input)
27
FAN SIG IN
I
Not used (fixed at “L”)
28
AUTO SW
I
TV audio detect signal input for the auto power on/off
29
AVDD
—
Power supply terminal (+5V) (for A/D converter analog system)
30
AVREF
I
Reference voltage (+5V) input terminal (for A/D converter)
31
—
I
Not used (fixed at “L”)
32
XT2
—
Not used (fixed at “L”)
33
VSS
—
Ground terminal
34
X1
I
Main system clock input terminal (5 MHz)
35
X2
O
Main system clock output terminal (5 MHz)
36
—
O
Not used (pull down)
37
REAR POWER
O
Power on/off control signal output for the wireless rear speaker    “H”: power on
38
U SET SW
I
Setting terminal for the model    Fixed at “L” in this set
39, 40
—
O
Not used (pull down)
41
FAN DRIVE
O
Not used (pull down)
*1  Input select control
TV
VIDEO
AUX
OFF
SEL A (pin !•)
“L”
“H”
“L”
“H”
SEL B (pin !ª)
“L”
“L”
“H”
“H”
Terminal
Function
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