Sony SRS-DB500 Service Manual ▷ View online
SRS-DB500
25
IC901 STR-F6138-LF1352 (US, Canadian, Mexican, Brazilian, Colombian, Venezuelan, Taiwan)
STR-F6168-LF1352 (AEP, UK, Singapore, Argentina, Australian, Chinese)
OVER
CURRENT
PROTECT
2
LOGIC
OSC
INTERNAL BIAS
DELAY
DELAY
LATCH
CURRENT
MIRROR
OVER
CURRENT
PROTECT
2
OVER
CURRENT
PROTECT
1
FEED
BACK
BACK
INH
2
INH
1
BOTTOM
SKIP
LOGIC
OCP/INH
1
S/GND
2
DRAIN
3
VCC
4
FB/OCP
5
UNDER VOLTAGE
LOCK OUT
OVER LOAD
PROTECT
THERMAL
SHUT DOWN
OVER VOLTAGE
PROTECT
SWITCHING
REGULATOR
BLOCK
IC921 STR-V153
5
8
4
1 2 3
GND
6
FB/OLP
7
N.C.
ST
AR
TUP
VCC
D
N.C.
SOURCE/OCP
+
–
+
+
+
+
+
Q S
R
DISCHARGE
BLANKING
BUFFER
TSD
DELAY
LATCH
INTERNAL
BIAS
OFF TIMER
PRC LATCH
BURST
FB
OCP
OLP
DRIVE
OVP
UVLO
POWER
MOS FET
Ver. 1.3
SRS-DB500
26
• IC Pin Function Description
MAIN BOARD IC001 R5F21247SNFP (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
NC
-
Not used
2
LED_CKS
O
Shift clock signal output to the LED driver
3
P3_3/SSI
-
Not used
4
LED_CKL
O
Latch clock signal output to the LED driver
5
MODE
I
Flash programming mode setting terminal Fixed at “H” in this set
6
LED_/OE
O
Output enable signal output to the LED driver
7
LED_A
O
Serial data output to the LED driver
8
RESET
I
System reset signal input from the reset signal generator “L”: reset
9
XOUT
O
System clock output terminal (20 MHz)
10
VSS
-
Ground terminal
11
XIN
I
System clock input terminal (20 MHz)
12
VCC
-
Power supply terminal (+3.3V)
13
LED_STANDBY
O
LED drive signal output terminal for standby LED indicator “H”: LED on
14
MASTER_VOLUME1
I
Jog dial pulse input from the rotary encoder (for VOLUME, BASS and TREBLE)
15
MASTER_VOLUME2
I
Jog dial pulse input from the rotary encoder (for VOLUME, BASS and TREBLE)
16
LCD_CE
O
Chip select enable signal output terminal Not used
17
EEP_SCL
I
Clock signal output to the EEPROM
18
EEP_SDA
I/O
Two-way data bus with the EEPROM
19
HP_PLUG_IN_DET
I
Headphone plug insert detection signal input terminal “H”: headphone plug is inserted
20
HP_MUTE
O
Muting control signal output terminal “L”: headphone muting on
21
SIRCS
I
SIRCS signal input from the remote control receiver
22
LCD_CLK
O
Serial clock signal output terminal Not used
23
SM_SOFT_MUTE
O
Soft muting signal output to the stream processor “L”: muting on
24
LCD_DATA
O
Serial data output terminal Not used
25
SM_OVF
I
Overfl ow signal input from the stream processor
26
NC
-
Not used
27
DC_DETECT
I
Over load detection signal input terminal
28
FLASH_TXD1
-
Not used
29
SM_SD
I
Shut down signal input from the digital power amplifi er
30
NC
-
Not used
31
AC_CUT_DET
I
AC cut detection signal input terminal Not used
32
PWR_KEY
I
Power switch input terminal
33
SM_DATA
O
Serial data output to the stream processor
34
SM_CLK
O
Serial clock signal output to the stream processor
35, 36
SM_LATCH1,
SM_LATCH2
O
Latch signal output to the stream processor
37
SM_INIT
O
Reset signal output to the stream processor
38
SM_NSP_MUTE
O
NSP muting signal output to the stream processor
39, 40
NC
-
Not used
41
STATIC_KEY0
I
TREBLE switch input terminal
42
STATIC_KEY1
I
BASS switch input terminal
43
STATIC_KEY2
I
INPUT switch input terminal
44
VREF
I
Reference voltage (+3.3V) input terminal (for A/D converter)
45
AUDIO_CLK
O
Serial clock signal output to the audio processor
46
AUDIO_DATA
O
Serial data output to the audio processor
47
AUDIO_LATCH
O
Serial latch signal output to the audio processor
48
POWER_METER
I
Volume meter LED control signal input terminal
49, 50
P_CON1, P_CON2
O
Power supply on/off control signal output terminal “H”: power on
51
SM_OTW
I
Over temperature warning signal input from the digital power amplifi er
52
SM_RESET
O
Reset signal output to the digital power amplifi er “L”: reset
SRS-DB500
27
MAIN BOARD IC005 R8A66166SP (LED DRIVER)
Pin No.
Pin Name
I/O
Description
1, 2
/Q1, /Q2
O
LED drive signal output terminal for VOLUME/BASS/TREBLE level indicator “H”: LED on
3
VCC
-
Power supply terminal (+3.3V)
4
A
I
Serial data input from the system controller
5
/OE
I
Output enable signal input from the system controller
6
CKL
I
Latch clock signal input from the system controller
7
/R
I
Reset signal input terminal “L”: reset
8
CKS
I
Shift clock signal input from the system controller
9
GND
-
Ground terminal
10
SQ16
O
Serial data output terminal Not used
11 to 13
/Q15, /Q16, /Q14
O
LED drive signal output terminal for illumination indicator “H”: LED on
14
/Q13
O
LED drive signal output terminal for TREBLE indicator “H”: LED on
15
/Q12
O
LED drive signal output terminal for BASS indicator “H”: LED on
16
/Q11
O
LED drive signal output terminal for INPUT 2 indicator “H”: LED on
17
/Q10
O
LED drive signal output terminal for MUTING indicator “H”: LED on
18 to 24
/Q9 to /Q3
O
LED drive signal output terminal for VOLUME/BASS/TREBLE level indicator “H”: LED on
28
SRS-DB500
SECTION 5
EXPLODED VIEWS
1
4-137-755-01 FOOT
RUBBER
2
3-703-244-00 CORD BUSH (2104)
0
3
1-777-071-83 CORD, POWER (AEP, UK, SP)
0
3
1-782-464-22 CORD, POWER (CH)
0
3
1-827-597-42 CORD, POWER (TW)
0
3
1-829-387-11 CORD, POWER (AR)
0
3
1-833-566-21 POWER-SUPPLY CORD (AUS)
0
3
1-834-270-11 CORD, POWER (US, CND, E92, MX)
#1
7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3
#2
7-685-871-01 SCREW +BVTT 3X6 (S)
#4
7-685-647-01 SCREW +BVTP 3X10 TYPE1 (MX)
#4
7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3 (EXCEPT MX)
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
Note:
• -XX and -X mean standardized parts, so
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
original one.
• Items marked “*” are not stocked since
they are seldom required for routine ser-
vice. Some delay should be anticipated
when ordering these items.
vice. Some delay should be anticipated
when ordering these items.
• The mechanical parts with no reference
number in the exploded views are not sup-
plied.
plied.
• Color Indication of Appearance Parts Ex-
ample:
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet’s Color
• Abbreviation
AR :
AR :
Argentina
model
AUS :
Australian
model
CH
: Chinese model
CND : Canadian model
E92
E92
: Brazilian, Colombian and
Venezuelan models
MX
: Mexican model
SP
: Singapore model
TW :
Taiwan
model
5-1. REAR CHASSIS SECTION (SUBWOOFER)
#4
#1
front panel section
(subwoofer)
(subwoofer)
AMP board section
(subwoofer)
(subwoofer)
1
#2
#2
#4
#4
not supplied
2
3
not supplied
(included in Ref. No. 151 on
cabinet section (subwoofer))
(included in Ref. No. 151 on
cabinet section (subwoofer))
Ver. 1.3
The components identifi ed by mark 0
or dotted line with mark 0 are critical for
safety.
Replace only with part number specifi ed.
or dotted line with mark 0 are critical for
safety.
Replace only with part number specifi ed.
Les composants identifi és par une marque
0
0
sont critiques pour la sécurité.
Ne les remplacer que par une pièce por-
tant le numéro spécifi é.
tant le numéro spécifi é.
Click on the first or last page to see other SRS-DB500 service manuals if exist.