Sony TA-SB500WR Service Manual ▷ View online
17
TA-SB500WR
IC901
STR-W6765N
– DIAT POWER Board –
D 1
NC 2
S/GND 3
VCC 4
SS/OLP 5
FB 6
OCP/BD 7
DELAY
Q
R
S
+
–
+
–
+
–
Q
S
R
+
–
BOTTOM
SELECTOR
COUNTER
OSC
R
Q
S
SOFT START
+
–
OVP
REGULATOR
& ICONST
+
–
BURST
CONTROL
START/STOP
BURST
PROTECTION
LATCH
DRIVE
REGULATOR
OLP
BSD
BD
OCP
FB
IC904
NJM2374AE (TE2)
CS 1
ES 2
CT 3
IN+
5
Q
S
R
PWM
LOGIC
OSC
GND 4
V+
6
VREF
+
–
+
–
+
–
ERROR AMP
PWM
COMPARATOR
SI
7
CD
8
IPK SENSE
18
TA-SB500WR
DIAT AMP BOARD IC107 MB89537APFM-G-565-BNDE1 (SURROUND AMP CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
NC
O
Not used
2
MOD2
I
Setting terminal for the CPU operation mode Fixed at "L" in this set
3, 4
NC
O
Not used
5
MODEL
I
Setting terminal for the model
6
SIMUKE
I
Setting terminal for the destination
7 to 10
NC
O
Not used
11
AVCC
-
Power supply terminal (+3.3V) (for A/D converter)
12
AVR
I
Reference voltage (+3.3V) input terminal (for A/D converter)
13
AVSS
-
Ground terminal (for A/D converter)
14
DTVALID
I
Data valid flag input from the RF demodulator "L": invalid, "H": valid
15
CSOD
I
Captor start delay signal input from the RF demodulator "H" active
16
NC
I
Not used
17
AC CUT
I
AC cut detection signal input terminal "L": AC cut
18
NC
I
Not used
19
/RESET
I
Reset signal input terminal "L": reset
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
20, 21
MOD0, MOD1
I
CPU operation mode setting signal input terminal
22
X0
I
Main system clock input terminal (8 MHz)
23
X1
O
Main system clock output terminal (8 MHz)
24
VSS
-
Ground terminal
25
FS2_EX
I
Not used
26
XRST_INIT
O
Reset signal output to the RF demodulator and stream processor "L": reset
27, 28
NC
O
Not used
29
P23
I
Setting terminal for the CPU operation mode Fixed at "L" in this set
30
P22
I
Setting terminal for the CPU operation mode Fixed at "H" in this set
31, 32
NC
O
Not used
33
DAMP_PGMUTE
O
PG muting on/off control signal output to the stream processor "L": muting on
34
DAMP_SOFTMUTE
O
Soft muting on/off control signal output to the stream processor "L": muting on
35
DAMP_NSPMUTE
O
NSP muting on/off control signal output to the stream processor "L": muting on
36
NC
O
Not used
37
DRIVE_RST
O
Reset signal output to the power driver "L": reset
38
DRIVE_OCP
I
Shut down state input from the power driver "L": shut down
39
DRIVE_OTW
I
Overtemperature warning signal input terminal Not used
40
P10
I
Setting terminal for the CPU operation mode Fixed at "H" in this set
41
LED_GREEN
O
LED drive signal output of the ON LINE indicator "H": LED on
42
LED_RED
O
LED drive signal output of the POWER indicator "H": LED on
43 to 47
NC
O
Not used
48
SCMODE
O
Control mode selection signal output to the RF demodulator
"L": pin setting, "H": serial setting
"L": pin setting, "H": serial setting
49
NC
-
Not used
50
XSCEN
O
Serial interface enable signal output to the RF demodulator
51
DIAT_SCLK
O
Serial interface data clock signal output to the RF demodulator
52
DIAT_SWDT
O
Serial interface data write signal output to the RF demodulator
53
DIAT_SRDT
I
Serial interface data read signal input from the RF demodulator
54
NC
O
Not used
•
IC Pin Function Description
19
TA-SB500WR
Pin No.
Pin Name
I/O
Description
55
T_SENSE
O
Not used
56
VCC
-
Power supply terminal (+3.3V)
57
MAIN_OFF
O
Power off control signal output to the power control "H": power off
58
V_CONT
O
Voltage control PWM signal output to the shunt regulator
59
DAMP_LATCH
O
Latch control signal output to the stream processor
60
DAMP_SHIFT
O
Shift clock signal output to the stream processor
61
DAMP_SCDT
O
Serial data output to the stream processor
62
SI2
I
Serial data input terminal
63
INT24
O
Not used
64
NC
O
Not used
20
TA-SB500WR
4
3
2
1
not supplied
(DIAT SWITCH board)
(DIAT SWITCH board)
not supplied
not supplied
not supplied
not supplied
(DIAT LED board)
(DIAT LED board)
DIAT AMP/DIAT POWER
boards section
boards section
#2
#2
#1
#2
#3
#2
#2
SECTION 4
EXPLODED VIEWS
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
X-2022-678-1 FRONT SUB ASSY (EXCEPT US)
1
X-2050-558-1 FRONT SUB ASSY (US)
2
2-149-268-01 BUTTON, POWER
3
2-149-270-01 PANEL, SIDE (EXCEPT US)
3
2-149-270-11 SIDE, PANEL (US)
4-1.
PANEL SECTION
4
2-149-269-01 PANEL, TOP
#1
7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3
#2
7-685-133-19 SCREW (DIA. 2.6) (IT3B)
#3
7-682-548-09 +B 3X8
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
•
The mechanical parts with no reference
number in the exploded views are not supplied.
number in the exploded views are not supplied.
•
Accessories are given in the last of the
electrical parts list.
electrical parts list.
NOTE:
•
-XX and -X mean standardized parts, so they
may have some difference from the original
one.
may have some difference from the original
one.
•
Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
Example:
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color
Cabinet's Color
The components identified by mark
0 or dotted line with mark 0 are
critical for safety.
Replace only with part number
specified.
0 or dotted line with mark 0 are
critical for safety.
Replace only with part number
specified.
•
Abbreviation
AUS : Australian model
HK : Hong Kong model
KR
AUS : Australian model
HK : Hong Kong model
KR
: Korean model
RU
: Russian model
SP
: Singapore model
TW : Taiwan model
Click on the first or last page to see other TA-SB500WR service manuals if exist.