Sony SRS-GD50iP User manual

SERVICE MANUAL
Sony Corporation
Audio&Video Business Group
Published by Sony Techno Create Corporation
SRS-GD50iP
SPECIFICATIONS
ACTIVE SPEAKER SYSTEM
9-889-576-01
2009F05-1
© 2009.06
US Model
AEP Model
UK Model
Ver. 1.0 2009.06
Main system
Continuous RMS power output (reference)
Satellite speaker: 10 W + 10 W (10 % THD, 1 kHz, 8 Ω)
Subwoofer: 40 W (10 % THD, 50 Hz, 4 Ω)
Inputs iPod/iPhone (dock connector)
Refer to compatible iPod/iPhone models sheet
LINE IN
Stereo mini-jack
USB section
USB connector type B jack
Compliant OS
Windows XP (Home Edition, Professional, MCE,
MCE2004, and MCE2005)
Windows Vista (Home Basic, Home Premium, Business,
Ultimate)
Mac OS X v10.5.6
Speaker systems
Satellite speaker: 50 mm (2 inch) dia
Subwoofer: 120 mm (4 3/4inch) dia
Dimensions (w/h/d)
Control box: Approx. 90 × 63 × 161 mm (3 5/8 × 2 1/2 ×
6 3/8inch)
Satellite speaker: Approx. 79 × 125 × 95 mm (3 1/8× 5 ×
3 3/4inch)
Subwoofer: Approx. 181 × 332 × 220 mm (7 1/4× 13 1/8×
8 5/8inch)
Mass
Control box: Approx. 290 g (10 oz)
Satellite speaker: Approx. 390 g (14 oz)
Subwoofer: Approx. 3,100 g (6 lb 13 oz)
Power requirements
DC IN: 19 V, 2.6 A
Supplied accessories
AC power cord (1)
AC power adaptor (1)
Card remote commander (1)
Operating Instructions (this sheet) (1)
iPhone Dock Adaptors (1 set)*
USB cable (1)
* Refer to iPhone Dock Adaptors sheet.
Design and specications are subject to change without
notice.

SRS-GD50iP
2
1. SERVICING NOTES ............................................. 3
2. DISASSEMBLY
2-1. Disassembly Flow........................................................... 4
2-2. MAIN Board (Control Box) ........................................... 4
2-3. LED Board (Control Box) .............................................. 5
2-4. DOCK Board (Control Box)........................................... 6
3. TEST MODE ............................................................ 7
4. DIAGRAMS
4-1. Block Diagram................................................................ 8
4-2. Printed Wiring Board - MAIN Board - ........................... 10
4-3. Schematic Diagram - MAIN Board (1/3) -..................... 11
4-4. Schematic Diagram - MAIN Board (2/3) -..................... 12
4-5. Schematic Diagram - MAIN Board (3/3) -..................... 13
4-6. Printed Wiring Board - LED Board -.............................. 14
4-7. Schematic Diagram - LED Board -................................. 15
4-8. Printed Wiring Board - DOCK Board - .......................... 16
4-9. Schematic Diagram - DOCK Board - ............................. 16
5. EXPLODED VIEWS
5-1. Control Box Section........................................................ 24
5-2. Satellite Speaker/Subwoofer Section.............................. 25
6. ELECTRICAL PARTS LIST .............................. 26
Accessories are given in the last of the electrical parts list.
TABLE OF CONTENTS
NOTES ON CHIP COMPONENT REPLACEMENT
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indication
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2 V AC range are suitable. (See
Fig. A)
1.5 kΩ0.15 μF
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
SAFETY-RELATED COMPONENT WARNING!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH MARK 0ON THE SCHEMATIC DIAGRAMS AND IN
THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS
WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS
MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
On safety
tAC power cord must be changed only at the qualied
service shop.
tDo not use any other AC power adaptor.
Polarity of the plug

SRS-GD50iP
3
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscous (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
SECTION 1
SERVICING NOTES
NOTE THE MOUNTED PARTS REPLACING
In each boards of Control box, there are parts that cannot exchange
a part.
Exchange mounted board when parts written “Not supplied” on
the list of electrical parts are defective.

SRS-GD50iP
4
1four screws
(BVTP3 u8)
3bottom cover
8MAIN board
7wire (flat type)
(15 core)
(CN100)
6wire (flat type) (40 core)
(CN505)
5rear cover
4two screws
(P2.6 u6)
2two screws
(P2 u5)
Note 2: Inserts until matching
rear cover to jack and
bumping.
Note 3: MAIN board block is lowered while
putting the headphone jack in the hole
of top cover assy.
Note 4: MAIN board must gotten
on the stepped section.
SECTION 2
DISASSEMBLY
• This set can be disassembled in the order shown below.
2-1. DISASSEMBLY FLOW
Note: Follow the disassembly procedure in the numerical order given.
2-2. MAIN BOARD (CONTROL BOX)
Note 1: This illustration sees the set from bottom side.
SET
2-2. MAIN BOARD (CONTROL BOX)
(Page 4)
2-3. LED BOARD (CONTROL BOX)
(Page 5)
2-4. DOCK BOARD (CONTROL BOX)
(Page 6)

SRS-GD50iP
5
2-3. LED BOARD (CONTROL BOX)
Note 1: This illustration sees the set from bottom side.
Note 2: When installing volume, set the
D-position and pushes volume
until becoming equal height.
Note 3: The lead wire passes
the cutting lack.
5seven screws
(PTP2 u5)
6LED board
2two screws
(BVTP3 u8)
3two screws
(BVTP3 u8)
3two screws
(BVTP3 u8)
4holder block
switch (S803)
switch A
Note 4: When installing LED board,
the position of switch (S803)
and claw of switch A is set
and installed.
1volume

SRS-GD50iP
6
2-4. DOCK BOARD (CONTROL BOX)
3wire (flat type) (15 core)
(CN901)
1three screws
(PTP2 u5)
4escutcheon
Note: When installing escutcheon,
firmly inserts escutcheon up
to the root of the connector.
5DOCK board 2

SRS-GD50iP
SRS-GD50iP
77
SECTION 3
TEST MODE
COLD RESET
Procedure:
1. Press the [?/1] button to turn the power on.
2. Press three buttons of the [BASS], [INPUT] and [?/1] simul-
taneously.
3. The [STANDBY], [BASS], [INPUT], [PC], [iPod] and [LINE
IN] LEDs blinks three times, and the cold reset is executed.
VERSION DISPLAY MODE
Procedure:
1. Press the [?/1] button to turn the power on.
2. While pressing two buttons of [BASS] and [INPUT], turn the
multi jog clockwise, and press the [INPUT] button three times.
3. All LEDs lights, and enter the test mode.
4. When the [INPUT] button is pressed, the microcomputer ver-
sion is displayed by blinking LEDs.
X . X X: microcomputer version
It is shown by the blinking frequency of the [LINE
IN] indicator.
It is shown by the blinking frequency of the [iPod]
indicator.
It is shown by the blinking frequency of the [PC] in-
dicator.
5. Press the [?/1] button to release the test mode.

SRS-GD50iP
SRS-GD50iP
88
SECTION 4
DIAGRAMS
4-1. BLOCK DIAGRAM
LINEOUT-L 27
LINEOUT-R R-CH
VBUS
28
ACC ID 10
TXD 19
RXD 18
Acc DET 20
ACC PWR 13
PGND 30
VBUS 8
WAKE UP
Q503
BUFFER
Q901
BUFFER
Q900
LINE AMP
IC103
HEADPHONE AMP
IC104
J100
J103
USB SWITCH
IC101
USB CONTROLLER
IC102
D/A CONVERTER
IC110
CN900
(iPod/iPhone Dock)
USB+ 3
USB- 2
USB D+ 4
USB D- 6
IPOD_ACCDET
34
IPOD_ACCP
39
IPOD_DET
37
IPOD_RX
36
IPOD_TX35
LED_PC_CONNECT42
PC_CONNECT
40
CN101
USB
J101
LINE IN
USBUP_DP31
USBUP_DM
30
D+
9
HOST21
D- R-CH
8
INPUT SELECT
IC106
IN3
5
IN1
1
IN2
3
33
32
X103
24MHz
XTAL1/CLKIN
XTAL2
USBDN2_DP 4
A/D CONVERTER
IC113
DIGITAL POWER AMP2
IC115
SYSTEM CONTROLLER
IC501
VINL13
VINR
14
DIGITAL POWER AMP1
IC114
SDIN1
25
SDIN2
24
SCLK
23
LRCK
22
MCLK
34
PWM_AP
HP_DET
HP_MUTE
HP_DET
HP_MUTE
10
PWM_CP
14
PWM_BP
12
PWM_DP
16
OUT 7DOUT 9
HPR_PWM 38
HPL_PWM 37
OUT_A 4
OUT_A 5
OUT_B 1
OUT_B 64
OUT_C 49
OUT_C 50
OUT_D 45
OUT_D 46
SUB_PWM+ 40
DAMP_PDN 19
DAMP_VALID 23
DAMP_THM 25
HP_MUTE 11
HP_DET 10
DC_DET 26
SUB_PWM- 39
BCK 8
LRCK 7
SCKI 6
SDA
28
SCL
29
MUTE
21
DAMP_SDA 24
DAMP_SCL 22
DAMP_MUTE 21
RESET16
DAMP_RESET 18
USBDN2_DM 3
R-CH
R-CH
VOUTL 14
VOUTR 15
USBDN1_DP 2
USBDN1_DM 1
VBUS_DET 27
X101
12MHz
28
1
XTI
XTO LPF
LPF
MUTING
CONTROL
Q102
MUTING
Q100, Q101
LPF
LPF
LPF
LPF
OVER LOAD
DETECT
Q107, Q108
OVER LOAD
DETECT
Q109, Q110
OUTA 55
OUTA 56 LPF
OUTB 50
OUTB 51
OUTC 34
OUTC 35 LPF
OUTD 29
OUTD 30
FAULT19BKND_ERR 35
HIZ17PDN 17
RESET18VALID 36
RESET 12
IPOD_VBUS 27
P_CONT 5
THERM21
LPF
LPF
OVER LOAD
DETECT
Q111, Q112
DC DETECT
Q106
SWITCHING
REGULATOR
IC510 J102
VOLTAGE
DETECT
IC108
RESET SIGNAL
GENERATOR
IC503
POWER ON/OFF
Q115, Q116
B+ SWITCH
Q104, Q105
RESET SWITCH
Q502
L
R
TB100
SUBWOOFER
DC IN 19V
–+
AMP +19V
+3.3V
+5V
REGULATOR
IC512
A +5V
+3.3V
REGULATOR
IC511
AMP +3.3V
VBUS
SWITCHING
REGULATOR
IC105
+5V
AC_CUT 20
ASEL0
6
SW1
2
ASEL1
7
SW2
4
R-CH
R-CH
IPOD_ACCID38
CLOCK
BUFFER
IC111
X102
12.288MHz
REMOTE
CONTROL RECEIVER
IC100
SIRCS_IN4
LED DRIVE
Q828 LED_BASS95
D828
BASS
LED DRIVE
Q827 LED_PC94
D827
PC
LED DRIVE
Q826 LED_IPOD93
D826
iPod
LED DRIVE
Q825 LED_LINE92
D825
LINE IN
LED DRIVE
Q824
ROTALY
ENCODER
LED_STANDBY72
D824
STANDBY
LED DRIVE
Q800 - 823
LED_VOL_0-
LED_VOL_23
D800 - 823
91-80,
61-50
SDA5EEPROM_SDA
EEPROM
IC500
70
SCL6EEPROM_SCL 71
I2C_SDA13IPOD_CP_DATA
EEPROM
IC502
30
I2C_SCL12IPOD_CP_CLK 29
RESET4IPOD_CP_RESET 28
KEY_INPUT97
S802
ON
OFF
INPUT
S803
SYNC
S807
(MULTI JOG)
KEY_BASS 100
S801
BASS
KEY_POWER73
S800
I/1
KEY_PC_CONNECT49
KEY_VOL_A
75
KEY_VOL_B74 15
13
X500
5MHz
Xin
Xout
SIGNAL PATH
: AUDIO
: USB
: LINE IN
R-ch is omitted due to same as L-ch.
VOLUME
INDICATOR
i

SRS-GD50iP
SRS-GD50iP
99
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
• All resistors are in Ωand 1/4 W or less unless otherwise
specified.
• C: Panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
• A: B+ Line.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : iPod
• Voltages are taken with VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F: AUDIO
E: USB
L: LINE IN
For Printed Wiring Boards.
Note:
• X: Parts extracted from the component side.
• Y: Parts extracted from the conductor side.
• f: Internal component.
• : Pattern from the side which enables seeing.
(The other layers’ patterns are not indicated.)
• Indication of transistor.
C
B
These are omitted.
E
Q
Caution:
Pattern face side:
(Conductor Side)
Parts face side:
(Component Side)
Parts on the pattern face side seen
from the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Waveforms
– MAIN Board –
1IC111 2(IN)
1 V/DIV, 50 ns/DIV
81 ns
2.5 Vp-p
4IC501 qd (Xout)
1 V/D, 100 ns/DIV
200 ns
3.4 Vp-p
20.8 Ps
4 Vp-p
2IC113 7(LRCK)
1 V/DIV, 10 Ps/DIV
3IC113 8(BCK)
1 V/DIV, 200 ns/DIV
328 ns
4.2 Vp-p

SRS-GD50iP
SRS-GD50iP
1010
4-2. PRINTED WIRING BOARD - MAIN Board - • : Uses unleaded solder.
15
15
R211
R212
R213
R214
R621
C200
C202
C203
C204
R628
C205
R629
C208
C209
R634
C210
R635
C211
C212
C214
R251
R252
R253
C218
R254
C219
R255 R256
R257
R258
R641
R259
R642
R644
C221
R645
R647
C225
C226 C229
C230
C231
C232
C234
C235
C236
C237
C238
C241
C243
C244
C245
C246
C247
C248
C251
C252
C253
C254
C255
C256
C257
Q104
Q105
Q107
Q108
Q109
Q110
Q111
C269
Q112
Q115 Q116
L105
C278
C279 FB100
FB109
FB110
FB114
FB116
R300
R303
R700
R701
R702
R703
R128
R704
R510 R129
R511
R900
R130 R131
R132
R136
R137
R138
R522
C100
C101
C102
R141
C106
C107
R144
R145
R146
R147
C300
C301
C110
R535
C113
C114
C115
R151
C116
R152
C117
C118
C119
R157
R158
R159
C120
R160
C125
C126
C127
R163
C128
R164
X500
R169
R551
C517
C518
R554
R555
C519
C132 C133
C134 C135
C136
C137
C139
R178
R179
C140
C141
C142
R180
C146
C147
C148
R184
C149
R187
R188
C153
R190
R192
R193
R195
R196
R197
R199
C547
D101 D102
C164
C165
C166
C169
C552
C555
C556 C557
C170
C558
C559
C171
C172
C174 C178
C560
D501
C179
C561
C562
C180
C181
C182
C183
D700
IC104
IC105
C185
IC108
C188
C571
C189
C572
C573
C574 IC111
IC113
C195
C196
C580
C199
IC501
C581
IC510
IC512
R202
R204
R205
R206
3
4
12
87
65
TB100
CN101
J101
J102
J103
J100
1
2
15
14
40 39
21
1
16
17
32
33
48
49 64
65
1
28
29 56
5
8
1
4
R210
R215
R236
R237
R627
C206
C207
R630
R631
R249
R632
R633
R636
C213
R637
R638
R250
R639
C215
C216
C217
R640
C220
C222
R646
C223
C224
C227
C228
R651
C233
C239
C240 C242
C249C250
Q100
Q101
C259
Q102
Q106
C260
L100
L102
Q502
Q503
L108
L109
L110
L111
L112
L113
L114
FB102
FB103
FB108
R100 R101
FB115
R106
R107
FB117
R108
FB118
R109
R301
R302
R110
R112 R113
R114
R115
R117
R118
R119
CN100
R506
R507
R120
R508
R121
R509
R122
R127
R512
R513
R516
R517 R518
R519
R133
R134
R135
R520
R139
CN505
R521
R523
R525
R526
R527
C104
R140
R528
R529
R142
R143
C108
C109
R148
R530
R149
R531
R532
R533
C111
X101
X102
C112
R536
R537
X103
R150
R538
R539
R153
R154
C500
R155
C501
R156
C502
C503
C504
R540
R541
C505
R542
C506
C507
R543
C508
C121
R545
C509
C122
R546
C123
R547
C124
R548
R161
R549
R162
C510
R165
C511
C512
R166
C513
R167
R550
R168
C516
R552
R553
C130
R556
R557
R558
R171
R559
R172
R173
R174
C520
R175
C521
R176 R177
C143
C144 C145
R181 R182
R185
C152
R191
C548
D100
C161
C549
C550
C551
C553
C176
C177
D500
C567
IC100
C568 C569
IC101
IC102
IC103
IC106
IC107 C570
C575C576
C578
IC110
C190
C579
C191
C193
C194
IC114
IC115
C197
C198
IC500
IC502
C582
IC503 C583
C584
C585
IC511
R200
R201
R203
R207
R208
R209
C515
1
1
30
31
80
51
50
100 81
3
45
1
3
4
17
148
5
1
2
4
3
1
4
8
5
KAKA E
EE
E
E
E
E
E
E
1-880-607-
11
(11)
MAIN BOARD (CONDUCTOR SIDE)
D
G
S
KK
A
USB
LINE IN
LR
SUBWOOFER
DC IN 19V
–+
1
5
15
16 20
10 6
11
114
15
28
1
1
10 4
5
69
36
28
19 27
10 9
18
1
34
5
18
45
1
8
4
5
1
8
4
5
1
34
61
34
6
E
E
E
B
LED
BOARD
CN102
A
DOCK BOARD
CN901
E
1-880-607-
11
(11)
MAIN BOARD (COMPONENT SIDE)
12
43
i
13
A
B
C
D
E
F
G
H
I
12345678910 11
(Page 14)
(Page 16)

SRS-GD50iP
SRS-GD50iP
1111
4-3. SCHEMATIC DIAGRAM - MAIN Board (1/3) - • See Page 9 for Waveforms. • See Page 17 for IC Block Diagrams. • See Page 20 for IC Pin Function Description.
MAIN
BOARD
(3/3)
1
DOCK
BOARD
CN901
A
MAIN
BOARD
(3/3)
2
IC B/D
IC B/D IC B/D
IC B/D
3
MAIN
BOARD
(2/3)
2
1
3
IC B/D
3.1
0
3.3
0
2.4
5
3.3
3.1
0
3.3
0
2.4
5
3.3
1.7

3.4
3.4
2.5
2.5
1.7
1.7
3.4
5
2.5
1.7
3.4
1.7
3.5
3.4
3.4
0
3.2
3.4
3.4
0
3.1
3.4
3.4
3.4
0
3.4
3.4
0
0
0
3.4
0.6
0.6
0
0
1.8
0
3.4
0 3.4 0 0 3.4 0
3.4
0
3.4
1.8
3.4
0
3.4
0 0 0
3.2 3.4
0
2
2
0
0
0
2
2
3.4
00
0
0
0 0
0
0
0
3.4
2.9
2.9
2.9
5
2.9
2.9
2.9
2.5 2.5 2.5
2.5 2.5 2.5 5
16V
10
C111
16V
10
C112
47k
R114
47k
R115
100
R130
100
R131
100
R161
100
R162
10
C193
0.1
C195
R191
100
0.1
C197
10
C196
14
13
12
11
10
9
87
6
5
4
3
2
1
PCM1808PWR
IC113
VREF
AGND
VCC
VDD
DGND
SCKI
LRCK
BCK
DOUT
MD0
MD1
FMT
VINL
VINR
0.1
C194
R192
100 0
R202 10
C198
100
R204
FB114
33p
C182
33p
C183
R195
1k
100k
R197
0.1
C199
4.7
R203
C108
100p
C109
100p
16V
10
C176
16V
10
C177
5
4
3
2
1
TC7SHU04FU(T5RSOJF)
IC111
NC
GND
VCC
12.288MHz
X102
10
C200
22uH
L105
NJM2521V(TE2)
IC106
IN1
SW1
IN2
SW2 IN3
VCC
OUT
GND
NJM2521V(TE2)
IC107
IN1
SW1
IN2
SW2 IN3
VCC
OUT
GND
1k
R172
1k
R171
1k
R173
1k
R174
22
R205
1k
R109
1k
R110
8
7
6
5
4321
NJM4580V(TE2)
IC103
V-
V+
4.7k
R137
4.7k
R138
22k
R155
22k
R154
22k
R144
22k
R145
22k
R146
22k
R147
22k
R151
22k
R152
16V
10
C121
16V
10
C122
16V
10
C123
16V
10
C124
10p
C127
10p
C128
10p
C134
10p
C135
10p
C133
C132
10p
100k
R127
100k
R133
100k
R139
100k
R142
75k
R134
75k
R143
J101
ASEL0
ASEL1
10
C119
10
C120
10
C165
10
C166
10
C115
10
C116
10
C202
47k
R128
47k
R129
C102
0.1
3.3k
R157
100p
C107
4.7k
R176
4.7k
R163
0
R159
4.7k
R177
2.2k
R132
RT3XBBM-T111-1
Q101 RT1P141C-TP-1
Q102
RT3XBBM-T111-1
Q100
MUTING MUTING MUTING
CONTROL
-1
63
25
14
63
25
14
-2 -1 -2
100p
C106
4.7kR164
4.7k
R158
0
R160
2.2k
R136
HP_DET
HP_MUTE
10
C185
R181
22
1.5k
R180
C180
1
R182
22
10
C169
1.5k
R185
C179
1
12p
C181
R199
22
0.022
C188
12p
C170
1M
R190
0.022
C189
C172
1
C171
1
28
27
26
25
24
23
22
7
6
5
4
3
2
1
21
20
16
17
18
19
13
12
11
10
8
9
15
14
PCM2704DBR
IC110
XTO
CK
DT
PSEL
DOUT
DGND
VDD
D-
D+
VBUS
ZGND
AGNDL
VCCL
VOUTL VOUTR
VCCR
AGNDR
VCOM
PGND
VCCP
HOST
HID0
HID1
HID2
FUNC
TEST
SSPND
XTI
1k
R184
R196
22
R200
2.2k
8P
CN101
USB
3
4
2
1
5
6
7
8
FB100
FB102 100k
R153
1k
R140
0.1
C130
10
C146
0.1
C126
10k
R165
0.1
C152
IC102
USB2512-AEZG
12345678
10
11
12
13
14
15
16
17
2021222324252627
29
30
31
32
33
34
35
36
9
18
19
28
0.1
C125
0.1
C114
0.1
C137
15p
C117 10kR166
1M
R141
0.1
C136
15p
C118
10
C140
0.1
C153
1k
R135
10k
R149
0.1
C147
0
R148
10
C113
10
C141
100k
R156
10k
R167
10k
R168 10k
R193
PC_CONNECT
0
R118
10
1
5
9
2
8
3
4
6
7
TS3USB221RSER
IC101
GND
1D+
VCC
S
1D-
D+
2D+
2D-
OE
D- 0R119
0
R117
0R120
0
R108
FB108
FB109
FB110
10
C139
31
2
4
L100
0.1
C110
FB103
R121
22
R122
22
10V
100
C190
10V
100
C191
R201
2.2k
C101
0.1
J100
1
2
12MHz
X101
100k
R301
100k
R302
100kR300
0.1
C300
1
2
24MHz
X103
IPOD_ACCID
IPOD_ACCP
IPOD_TX
IPOD_RX
IPOD_DET
R303
330
0.1
C301
IPOD_ACCDET
0
R628
0
R627
10V100
C579
0
R629
100p
C547
100p
C548
16V
10
C549
16V
10
C550
4.7
R630
4.7
R631
0
R632
0
R633
10k
R169
6.3V
330
C568
6.3V
330
C569
2.2kR634
2.2k
R635 330p
C149
330p
C571
2200p
C572
2200p
C574
2200p
C573
2200p
C148
2.2k
R637
2.2k
R636
2.2k
R639
2.2k
R638
16V
10
C575
16V
10
C576
0.1
C581
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
15P
CN100
100k
R644
HOST
0.1
C584
0.1
C585
0
R651
6.3V
470
C570
16V
10
C144
16V
10
C145
UMZC6.8NT106
D700
R112
0
R113
0
0
R107
0
R106
8
7
6
5
4
3
2
1
NJM4580V(TE2)
IC104
V-
V+
47k
R150
NC
USBDN2_DP
XTAL1/CLKIN
NC
OCS1_N
USBDN1_DM
RESET_N
SCL/SMBCLK/CFG_SEL0
VDDA33
VBUS_DET
VDD33CR
PRTPWR1
NC
NC
VDD33
SUSP_IND/
LOCAL_PWR/
NON_REM0
RBIAS
VDD18PLL
VDDA33
USBDN1_DP
VDDA33
HS_IND/CFG_SEL1
NC
PRTPWR2
TEST
NC
NC
OCS2_N
USBUP_DM
VDD18
VDD33PLL
NC
USBUP_DP
XTAL2
SDA/SMBDATA/NON_REM1
USBDN2_DM
1
2
3
4
5
6
7
8
9
10
11
(1/3)
MAIN BOARD
USB SWITCH
IC101
USB CONTROLLER
IC102
D/A CONVERTER
IC110
IC106
INPUT SELECT
INPUT SELECT
IC107
A/D CONVERTER
IC113
CLOCK BUFFER
IC111
IC104
HEADPHONE AMP
LINE AMP
IC103
LINE IN
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
1
J
4
B
166911
D
15
H
L
10
K
1735 12
C
F
18
M
119
E
8
G
14
A
213
I
7
(Page 13)
(Page
16)
(Page 13)
(Page
12)

SRS-GD50iP
SRS-GD50iP
1212
4-4. SCHEMATIC DIAGRAM - MAIN Board (2/3) - • See Page 17 for IC Block Diagrams. • See Page 20 for IC Pin Function Description.
5
MAIN
BOARD
(3/3)
MAIN
BOARD
(1/3)
3
MAIN
BOARD
(3/3)
4
IC B/D
IC B/D
IC B/D
IC B/D
IC B/D
IC B/D
9.5
18.9
18.9
19.4
10.8
19.4
18.9
2.4
19.4
10.8
19.4
18.9
18.9
9.5
9.5
3.4 3.3 1.8 1 0.7 9.5 9.5 9.5 3.3 18.9 18.9
3.4
1
3.4
1.7
1.7


1.8
3.4
3.4
0
3.5
3.3 1.7 3.3 3.4 2.5 2.5 1.6 1.6
18.9 18.9
9.5 9.5
5
1.4
5.2
3.3
18.9
5.2 0.8 3.5
18.9
3.5 0.8
3.4 3.4
3.1 18.9
5
5.2
0
0
5.2
3.4
0
0
3.5
3.1
0
0
5.2
0
9.5
9.5
9.5
9.5
18.9
18.9
18.9
18.9
18.9
9.5
9.5
9.5
9.5
19.4
10.8
19.4
10.8
19.4
2.4
19.4
18.9
18.9
18.9
18.9
18.9
18.9
3.3
1.6
1.6
1.6
1.6
3.4
3.4
3.3
3.4
000
9.5
3.4 9.5
9.5
9.5
00
9.5
9.5
9.5
9.5
00
9.5
9.5
9.5
9.5
10k
R215
100
R207
100
R208
100
R209
100
R210
100
R206
0.1
C208
0.1
C212
0.1
C211
16k
R212
2.2k
R214
10
C206
0.1
C207
0.1
C218
10
C214
470
R236
470
R237
C213
4700p
C217
4700p
2SC3052EF-T1-LEF
DC DETECT
Q107 - 112
OVER LOAD
DETECT
Q106
100k
R252
100k
R249
100
R250
ISA1235AC1TP-1EF
Q107
0.1
C260
100k
R253
ISA1235AC1TP-1EF
Q108
100k
R255
ISA1235AC1TP-1EF
Q109
ISA1235AC1TP-1EF
Q110
100k
R256
TAS5706PAPR
IC114
1
OUT_B
2
PGND_B
3
PGND_B
4
OUT_A
5
OUT_A
6
PGND_A
7
PGND_A
8
PVCC_A
9
PVCC_A
10
AVD D
11
AVSS
12
PLL_FLTM
13
PLL_FLTP
14
VR_ANA
15
DVDD
16
RESET
17 PDN
18 VREG_EN
19 OSC_RES
20 DVSS
21 MUTE
22 LRCK
23 SCLK
24 SDIN2
25 SDIN1
26 DVSS
27 VR_DIG
28 SDA
29 SCL
30 HPSEL
31 STEST
32 TEST2
33
DVDD
34
MCLK
35
BKND_ERR
36
VALID
37
HPL_PWM
38
HPR_PWM
39
SUB_PWM-
40
SUB_PWM+
41
PVCC_D
42
PVCC_D
43
PGND_D
44
PGND_D
45
OUT_D
46
OUT_D
47
PGND_C
48
PGND_C
49
OUT_C
50
OUT_C
51
PVCC_C
52
PVCC_C
53
BST_C
54
VCLAMP_CD
55
BST_D
56
BYPASS
57
AGND
58
AVC C
59
BST_A
60
VCLAMP_AB
61
BST_B
62
PVCC_B
63
PVCC_B
64
OUT_B
1C232
1C231
1C230
DAMP_VALID
M1FM3
D101
6.3V
470
C161
820
R175
2.2k
R179
2.2k
R178
3.3V
DAMP_MUTE
DAMP_PDN
DAMP_SCL
DAMP_SDA
DAMP_RESET
DC_DET
47uH
L102
10k
R211 0.01
C203
0.01
C204
10k
R213
S
RSR25P03TL
Q104
PST3660UL
IC108
GND
VDD CD
OUT
0.1
C174
0.1
C164
0.1
C178
R188
100
220k
R187
10
C209
10
C210
10
C205
0.01
C219
0.01
C233
0.01
C234
0.01
C235
0.01
C220
12345
SI-8008TM-TLS
IC105
IN SW GND ADJ SS
1
C254
1
C252
1
C256
10C225
VCC
0.022
C251
GND
DAMP_THM
22uH
L108
12
3
4
12
3
4
22uH
L109
100k
R258
ISA1235AC1TP-1EF
Q111
ISA1235AC1TP-1EF
Q112
100k
R259
0.1
C226
0.1
C229
0.1
C244
0.1
C245
0.1
C246
FB115
FB116
FB117
FB118
0.022
C253
0.022
C255
0.022
C257
J103
L
10
C100
100
R101
VCC OUT GND
NJL21V400A-M
IC100 123
47
R100
100p
C104
TAS5602DCAR
IC115
1PGNDA
2PGNDA
3PGNDA
4PVCCA
5PVCCA
6PVCCA
7NC
8DVDD
9DGND
10 PWM_AP
11 NC
12 PWM_BP
13 NC
14 PWM_CP
15 NC
16 PWM_DP
17 HIZ
18 RESET
19 FAULT
20 SE/BTL
21 THERM
22 NC
23 PVCCD
24 PVCCD
25 PVCCD
26 PGNDD
27 PGNDD
29
OUTD
30
OUTD
31
PGNDC
32
PGNDC
33
PGNDC
34
OUTC
35
OUTC
36
PVCCC
37
PVCCC
38
BSC
39
VCLA_CD
40
BSD
41
BYPASS
42
AGND
43
AVC C
44
NC
45
BSA
46
VCLA_AB
47
BSB
48
PVCCB
49
PVCCB
50
OUTB
51
OUTB
52
PGNDB
53
PGNDB
54
PGNDB
57
GND
28 PGNDD
55
OUTA
56
OUTA
SIRCS_IN
+
-
TB100
R621
1k
1.2k
R641
1.5k
R642
6.3V
470
C578
M1FM3
D102
12345
SI-8008TM-TLS
IC510
IN SW GND ADJ SS
47uH
L110
820
R640
P_CONT
0.1
C580
1
C555 1
C556
1
C557
1
C558
1
C559
1
C560
1
C561
1
C562
6.3V
470
C567
RT1N141M-TP-1
Q116
RT1N141M-TP-1
Q115 10k
R645
IPOD_VBUS
RT1N141M-TP-1
Q105
54
321
TK11133CSCL-G
IC511
Vcont GND Np Vout
Vin
10k
R646
10V
100
C583
0.01
C552
25V
330
C551
22uH
L111
22uH
L112
22uH
L113
22uHL114
25V
220
C239
25V
220
C242
25V
220
C240
25V
220
C223
25V
220
C224
25V
220
C227
25V
100
C249
25V
220
C259
25V
220
C228
25V
220
C250
6.3V
C553
470
54
321
4
3
2
1
NJM2831F05(TE1)
IC512
0
R647
0
R900
0.1
C582
0.1
C236
0.1
C238
0.1
C237
0.1
C221
0.1
C222
0.047
C215
0.047
C216
0.033
C248
0.033
C243
0.033
C241 0.033
C247
100k
R251
100k
R257
100k
R254
10
C269
10
C279
10
C278
25V
220
C143
0.1
C142
1SR154-400TE-25
D100 J102
IC115
DIGITAL POWER AMP2
Q115, 116
POWER ON/OFF
Q104, 105
B+ SWITCH
IC114
DIGITAL POWER AMP1
IC511
+3.3V REGULATOR
6
7
5
8
3
11
9
10
1
4
2
VOLTAGE DETECT
IC108
+5V REGULATOR
IC512
SWITCHING
REGULATOR
SWITCHING
REGULATOR
IC105
IC510
REMOTE CONTROL
RECEIVER
IC100
(2/3)
MAIN BOARD
J
4
B
166911
D
15
H
L
10
K
1735 12
C
F
18
M
119
E
8
G
14
A
213
I
7
R
SUBWOOFER
DC IN 19V
–+
CNT GND NC VO
VI
(Page
13)
(Page 11)
(Page 13)

SRS-GD50iP
SRS-GD50iP
1313
4-5. SCHEMATIC DIAGRAM - MAIN Board (3/3) - • See Page 9 for Waveforms. • See Page 17 for IC Block Diagrams. • See Page 20 for IC Pin Function Description.
B
LED
BOARD
CN102
MAIN
BOARD
(2/3)
4
MAIN
BOARD
(1/3)
2
1
MAIN
BOARD
(1/3)
5
MAIN
BOARD
(2/3)
IC B/D
4
3.4 3.4 3.4
3.4
3.4
3.4 3.4
0 0 0 0 0
3.4 1.8 1.6 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4
3.4 3.4 3.4 3.4 3.4 3.4 0 3.4 3.4 0 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4 3.4
3.4 3.4 3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
3.4
0
3.4
0
0
3.4
3.4
3.4
3.4
3.4
0
3.4
0
0
0
3.4
3.4
3.4
3.4
3.4
3.4
0
3.4
0
0
3.4
3.4
8.5
9.3
0
3.4
0.1
C509
0.22
C516
R554
0
R557 0
10kR525
R556 0
0R522
0.1
C507
R559 0
0.1
C508
R555
0
0.1
C515
0.1
C503
10k
R520
4.7kR527
4
3
1
2
PST3660UL
IC503
GND
VDD CD
OUT
2SC3052EF-T1-LEF
Q502
RESET SWITCH
10k
R548
100k
R546
47k
R547
MA2J1110GLS0
D500
0.01
C513
0.22
C512
47k
R540
47kR531
4.7kR526
DAMP_RESET
DAMP_PDN
DAMP_MUTE
DAMP_SCL
DAMP_SDA
3.3V
GND
DAMP_VALID
10k
R521
1kR518
0.1
C505
10k
R530
10k
R532
10k
R543
0
R558
0.1
C518
0.01
C519
4.7k
R538
12345
6
7
8
9
10
1112131415
16
17
18
19
20
MFI341S2163
IC502
NC MODE1 NC RESET VCC
NC
NC
NC
NC
NC
VSS
I2C_SCL
I2C_SDA
MODE0
NC
NC
NC
NC
NC
NC
10k
R533
VCC
10
C502
10
C506
10
C510
10
C517
10
C520
10
C521
10
C511
100
R551
100R552
100R553
R537
0
123456789
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
515253545556575859606162636465666768697071727374757677787980
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
IC501
R5F3640DDA04FAR-128
EEPROM_SDA EEPROM_SCL No USE SIRCS_IN P_CONT ASEL0 ASEL1 BYTE CNVss HP_DET HP_MUTE RESET Xout Vss Xin Vcc1 NMI DAMP_RESET DAMP_PDN AC_CUT DAMP_MUTE DAMP_SCL DAMP_VALID DAMP_SDA DAMP_THM DC_DET IPOD_VBUS IPOD_CP_RESET IPOD_CP_CLK UPOD_CP_DATA
UART_TxD1
UART_RxD1
PC_VBUS
NO USE
IPOD_TX
IPOD_RX
IPOD_DET
IPOD_ACCID
IPOD_ACCP
PC_CONNECT
NO USE
LED_PC_CONNECT
NO USE
NO USE
NO USE
NO USE
I2C_DATA
I2C_CLK
KEY_PC_CONNECT
LED_VOL_23
LED_VOL_22 LED_VOL_21 LED_VOL_20 LED_VOL_19 LED_VOL_18 LED_VOL_17 LED_VOL_16 LED_VOL_15 LED_VOL_14 LED_VOL_13 LED_VOL_12
Vcc
NO USE
Vss
NO USE NO USE
KEY_ECO
NO USE NO USE NO USE NO USE
LED_STANDBY
KEY_POWER
KEY_VOL_B
KEY_VOL_A
NO USE
USB_HUB_SDA
USB_HUB_SCL
USB_HUB_RESET
LED_VOL_11
LED_VOL_10
LED_VOL_9
LED_VOL_8
LED_VOL_7
LED_VOL_6
LED_VOL_5
LED_VOL_4
LED_VOL_3
LED_VOL_2
LED_VOL_1
LED_VOL_0
LED_LINE
LED_IPOD
LED_PC
LED_BASS
AVs s
KEY_INPUT
Vref
AVc c
KEY_
BASS
R510
4.7k
C504
0.1
R511
4.7k
100k
R550
100k
R549
SIRCS_IN
P_CONT
HP_DET
HP_MUTE
10k
R519
DAMP_THM
DC_DET
10k
R528
10k
R529
RT1N141M-TP-1
WAKE UP
Q503
IPOD_VBUS
10k
R545
10k
R536
PC_CONNECT
10k
R539
10k
R516
10k
R517
RB521S-30-TE61D501
0.1
C501
0.1
C500
0
R512
0
R513
10k
R507
1kR508
10k
R506
1k
R509
ASEL1 ASEL0
10k
R523
IPOD_DET
IPOD_RX
IPOD_TX
IPOD_ACCID
IPOD_ACCP
1k
R700
100
R701
100
R702
R541
10k
R542
10k
IPOD_ACCDET
10k
R535
10k
R703
10k
R704
5MHz
X500
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
37
38
39
40
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
B28
B29
B30
B31
B32
B33
B34
B35
B36
B37
B38
B39
B40
40P
CN505
HOST
8765
4321
S-24CS02AFJ-TB-G
IC500
A0 A1 A2 GND SDA
SCL
WP
VCC
I
L
0
1
2
3
4
5
6
7
8
9
10
11 12 13 14 15 16 17 18 19 20 21 22
S
P
B
P
I
L
0
1
2
3
4
5
6
7
8
9
10
11
S
VA
VB
KB
VA
KI
KP
KC
22
21
19
17
15
13
12
14
20
16
23
18
KC
23
B
KB
KI
KP VB
SYSTEM CONTROLLER
IC501
EEPROM
IC500
RESET SIGNAL
GENERATOR
IC503
EEPROM
IC502
MAIN BOARD (3/3)
4
B
166911
D
15
H
1035 12
C
F
1
E
8
G
14
A
213
I
J
K
7
(Page
15)
(Page 11)
(Page 12)
(Page
11)
(Page 12)

SRS-GD50iP
SRS-GD50iP
1414
4-6. PRINTED WIRING BOARD - LED Board - • : Uses unleaded solder.
R838 R839
R840
R841
R842
R843
R844
R845
R846
R847
R848
R849
C810
R850
R851
R852
R853
R854
R855
R856
R857
R858
R859
R860
S800
R861 S801S802
S803
R863
R864 R865
D800 D801
D802
D803
D804
D805
D806
D807
D808
D809
D810
D811
D812
D813
D814
D815
D816
D817
D818
D819
D820
D821
D822
D823
D824
D825 D826 D827
D828
40
39
2
1
PAT201
PAT202
PAT203
R862
R866
CN102
PAT101
PAT102
PAT103
Q800
Q801
Q802
Q803
Q804
Q805
Q806
Q807
Q808
Q809
Q810
Q811 Q812 Q813
Q814
Q815
Q816
Q817
Q818
Q819
Q820
Q821
Q822
Q823
Q824
Q825
Q826
Q827
Q828
S807
BASS
INPUT
SYNC
KA
KA
KAKA
KA
KA
KA
KA
K
A
K
A
K
A
K
A
K
A
K
A
KA
KA KA KA
KA
KA
KA
K
A
K
A
K
A
K
A
K
A
K
A
K
A
K
A
S800 – 802
1-880-608-
11
(11)
LED BOARD (COMPONENT SIDE)
OFF
ON
1
STANDBY
BASS
iPod PC
LINE IN
RED
WHT
BLK
RED
WHT
BLK
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
E
EEE
E
E
E
E
E
BMAIN BOARD
CN505
1-880-608-
11
(11)
LED BOARD (CONDUCTOR SIDE)
D800 – 828
AK
1
3
ROTARY ENCODER
(MULTI JOG)
A
B
C
D
E
F
1 2 3 4 5 6 7 8
D800 – 823
(VOLUME INDICATOR)
(Page 10)

SRS-GD50iP
SRS-GD50iP
1515
4-7. SCHEMATIC DIAGRAM - LED Board -
MAIN
BOARD
(3/3)
CN505
B
3.4
0
3.4
0
3.4
0
3.4
0
3.4
0
3.4
0
3.4
0
3.4
0
3.4
0
3.4
0
3.4
0
3.4
0
3.4
0
3.4
0
3.4
0
3.4
0
3.4
0
3.4
0
3.4
0
3.4
0
3.4
0
3.4
0
3.4
0
3.4
0
3.4
0
0
3.7
0
3.7
0
3.7
0
3.7
SML-D12V8WT86SN
D824
220
R838
SML-D12D8WT86SQ
D800
D800 - 823
(VOLUME INDICATOR)
SML-D12D8WT86SQ
D801
RT1N141M-TP-1
Q801
220
R839
SML-D12D8WT86SQ
D802
RT1N141M-TP-1
Q802
220
R840
SML-D12D8WT86SQ
D803
RT1N141M-TP-1
Q803
220
R841
SML-D12D8WT86SQ
D804
RT1N141M-TP-1
Q804
220
R842
SML-D12D8WT86SQ
D805
RT1N141M-TP-1
Q805
220
R843
SML-D12D8WT86SQ
D809
220
R845
SML-D12D8WT86SQ
D808
RT1N141M-TP-1
Q808
SML-D12D8WT86SQ
D811
RT1N141M-TP-1
Q811
220
R849
SML-D12D8WT86SQ
D806
RT1N141M-TP-1
Q806
SML-D12D8WT86SQ
D807
RT1N141M-TP-1
Q807
RT1N141M-TP-1
Q810
220
R847
220
R848
220
R844
220
R846
SML-D12D8WT86SQ
D810
RT1N141M-TP-1
Q809
SML-D12D8WT86SQ
D815
220
R851
SML-D12D8WT86SQ
D814
RT1N141M-TP-1
Q814
SML-D12D8WT86SQ
D817
RT1N141M-TP-1
Q817
220
R855
SML-D12D8WT86SQ
D812
RT1N141M-TP-1
Q812
SML-D12D8WT86SQ
D813
RT1N141M-TP-1
Q813
RT1N141M-TP-1
Q816
220
R853
220
R854
220
R850
220
R852
SML-D12D8WT86SQ
D816
RT1N141M-TP-1
Q815
SML-D12D8WT86SQ
D821
220
R857
SML-D12D8WT86SQ
D820
RT1N141M-TP-1
Q820
SML-D12D8WT86SQ
D823
RT1N141M-TP-1
Q823
220
R861
SML-D12D8WT86SQ
D818
RT1N141M-TP-1
Q818
SML-D12D8WT86SQ
D819
RT1N141M-TP-1
Q819
RT1N141M-TP-1
Q822
220
R859
220
R860
220
R856
220
R858
SML-D12D8WT86SQ
D822
RT1N141M-TP-1
Q821
SML-D12D8WT86SQ
D827
220
R863
SML-D12D8WT86SQ
D826
RT1N141M-TP-1
Q826
RT1N141M-TP-1
Q824
SML-D12D8WT86SQ
D825
RT1N141M-TP-1
Q825
RT1N141M-TP-1
Q828
220
R865
220
R866
220
R862
220
R864
SML-D12D8WT86SQ
D828
RT1N141M-TP-1
Q827
RT1N141M-TP-1
Q800
Q800 - 828
LED DRIVE
PAT101
PAT102
PAT103
S807
PAT201
PAT203
PAT202
0.1
C810
S800
S801
S802
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
37
38
39
40
B40
B39
B38
B37
B36
B35
B34
B33
B32
B31
B30
B29
B28
B27
B26
B25
B24
B23
B22
B21
B20
B19
B18
B17
B16
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
40P
CN102
S803
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
S
L
I
P
B
KB
L
VB
I
VA
P
12
14
23
10
B
9
5
KP
KC
4
1
KI
3
0
16
18
19
21
22
15
13
C
2
S
11
8
7
6
20
17
VA
VB
KP
KB
KI
KC
ROTARY ENCODER
(MULTI JOG)
SYNC
ON
OFF
INPUT
BASS
LED BOARD
4
B
6911
D
H
1035
C
F
1
E
8
G
A
27
STANDBY
LINE IN
iPod
PC
BASS
/
1
3
2
(Page 13)

SRS-GD50iP
SRS-GD50iP
1616
4-8. PRINTED WIRING BOARD - DOCK Board - 4-9. SCHEMATIC DIAGRAM - DOCK Board -
• : Uses unleaded solder.
30 1
Q900
Q901
R900
R901
CN900
1
15
CN901
E
E
AMAIN BOARD
CN100
1-880-609-
11
(11) 1-880-609-
11
(11)
DOCK BOARD (COMPONENT SIDE) DOCK BOARD (CONDUCTOR SIDE)
(iPod iPhone Dock)
A
B
1 2 3 4 5
A
MAIN
BOARD
(1/3)
CN100
0
3.4
0
3.4
RT1N141M-TP-1
BUFFER
BUFFER
Q901
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
30P
(iPod/iPhone Dock)
CN900
DGND
DGND
TPA+
USB D+
TPA-
USB D-
TPB+
VBUS
TPB-
ACC ID
PWR+
PWR+
ACC PWR
Reserved
DGND
DGND
Reserved
RXD
TXD
Acc DET
S-VIDEO-Y
S-VIDEO-C
C-VIDEO
Remoto Sense
Line-IN-L
Linr-IN-R
LINEOUT-L
LINEOUT-R
A-GND
DGND
330k
R901
220k
R900
RT1N141M-TP-1
Q900
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
15P
CN901
DOCK BOARD
4
B
D
35
C
1
E
A
2
(Page 10)
(Page 11)

SRS-GD50iP
17
• IC Block Diagrams
– MAIN Board –
IC101 TS3USB221RSER IC105, 510 SI-8008TM-TLS
1D+
D+
1
8
S
VCC
9
D–
7
1D– 2
OE
6
5
10
CONTROL
SWITCH
2D+ 3
2D–
GND
4
OVER
CURRENT
PROTECTOR
LATCH
&
DRIVER
OVER HEAT
PROTECTOR
REGULATOR
ON/OFF
SOFT
START
+
–
+
–
RESET
VREF
COMPARATOR
ERROR AMP
OSC
1
VIN
2
SW OUT
3
GND
4
ADJ
5
SOFT START
VOUT
VCC
VIN3 (MUTE)
1 2 3 4
567
GND
BUFFER
VIN1 VIN2
SW1
SW2
8
BIAS
VDD 2
GND 1
+
–
VREF
CD3
OUT
4
IC106, 107 NJM2521V (TE2) IC108, 503 PST3660UL

SRS-GD50iP
18
DELTA-SIGMA
MODULATOR
DELTA-SIGMA
MODULATOR
ANTIALIAS
LOW-PASS FILTER
ANTIALIAS
LOW-PASS FILTER
AGND
VCC
2
3
VDD
DGND
4
5
LRCK 7
REFERENCE
u1/64
DECIMATION
FILTER
WITH
HIGH-PASS
FILTER
SERIAL
INTERFACE
&
MODE/FORMAT
CONTROL
FMT12
VINR
14
VINL
13
MD111
MD010
DOUT9
BCK8
CLOCK & TIMING CONTROL
POWER
SUPPLY
SCKI 6
VREF 1
VOUTR
15
VCCR
16
VCCP
20
AGNDR
17
PGND
19
VCOM
18
1
XTO
2
CK
3
DT
4
PSEL
5
DOUT
7
VDD
10
VBUS
13
VCCL
6
DGND
11
ZGND
12
A
GNDL
14
VOUTL
8
D–
9
D+
EEPROM
INTERFACE
5V TO 3.3V
VOLTAGE
REGULATOR
XCVR
USB SIE
D/A
CONVERTER
TRACKER
(SPACT)
PLL
(X8)
S/PDIF
ENCODER
ANALOG PLL
ISO-OUT
ENDPOINT
CONTROL
ENDPOINT
HID
ENDPOINT
FIFO
HOST
21
HID0/MS
22
HID1/MC
23
HID2/MD
24
TEST1
25
TEST0
26
XTI
28
SSPND
27
SPI
INTERFACE
POWER
MANAGER
USB PROTOCOL
CONTROLLER
IC110 PCM2704DBR
IC113 PCM1808PWR

SRS-GD50iP
19
SERIAL
AUDIO
PORT
7 ABQs
PDAP
MIXERS BASS
MANAGEMENT
MICROCONTROLLER
BASED SYSTEM
CONTROL
SAMPLE RATE
AUTODETECT
AND PLL
SERIAL
CONTROL
TERMINAL CONTROL
4th
ORDER
NOISE
SHAPER
AND
PWM
2 ABQ
HIGH
PRECISION
VOLUME
SRC
SDIN125
SDIN224
VR_DIG
27
DVSS
26
SCLK
23
LRCLK
22
MUTE
21
DVSS
20
OSC_RES
19
VREG_EN
18
PDN
17
SCL29
SDA
28
STEST
31
HPSEL
30
TEST2
BYPASS
AGND
VCLAMP_CD
BST_D
AVCC
BST_A
VCLAMP_AB
BST_B
PVCC_B
PVCC_B
OUT_B
PVCC_C
BST_C
OUT_C
PVCC_C
OUT_C
32
56
57
54
55
58
59
60
61
62
63
64
52
53
50
51
49
7 ABQs
R
SUB
L
BQ
DRC
DRC
LOUDNESS
BQ
2x HB
FET OUT
2x HB
FET OUT
CLICK AND POP
CONTROL
DVDD
33
MCLK
34
BKND_ERR
35
VALID
36
HPL_PWM
37
HPR_PWM
38
SUB_PWM-
39
SUB_PWM+
40
PVCC_D
41
PVCC_D
42
PGND_D
43
PGND_D
44
OUT_D
45
OUT_D
46
PGND_C
47
PGND_C
48
OUT_B
1
PGND_B
2
PGND_B
3
OUT_A
4
OUT_A
5
PGND_A
6
PGND_A
7
PVCC_A
8
PVCC_A
9
AVDD
10
AVSS
11
PLL_FLTM
12
PLL_FLTP
13
VR_ANA
14
DVDD
15
RESET
16
CONTROL
CIRCUIT
BANDGAP
REFERENCE
+
–
OVER HEAT &
OVER CURRENT
PROTECTION
1
VCONT
3
NP
2
GND
4
VOUT
5
VIN
5
VIN
4
VOUT
2
GND
3
NC
1
CONTROL
BANDGAP
REFERENCE
THERMAL
PROTECTION
IC114 TAS5706PAPR
IC511 TK11133CSCL-G IC512 NJM2831F05 (TE1)

SRS-GD50iP
20
Pin No. Pin Name I/O Description
1, 2 USBDN1_DM,
USBDN1_DP I/O Audio serial data input/output with the iPod connector
3, 4 USBDN2_DM,
USBDN2_DP O Audio serial data output to the D/A converter
5 VDDA33 - Power supply terminal (+3.3V)
6 to 9 NC - Not used
10 VDDA33 - Power supply terminal (+3.3V)
11 TEST - Test terminal Not used
12 PRTPWR1 O Power supply control signal output terminal Not used
13 OCS1_N I Over current sense signal input terminal Not used
14 VDD18 - External capacitor connection terminal
15 VDD33CR - Power supply terminal (+3.3V)
16 PRTPWR2 O Power supply control signal output terminal Not used
17 OCS2_N I Over current sense signal input terminal Not used
18 to 21 NC - Not used
22 SDA/SMBDATA
/NON_REM1 I/O Not used
23 VDD33 - Power supply terminal (+3.3V)
24 SCL/SMBCLK/
CFG_SEL0 I/O Not used
25 HS_IND/CFG_SEL1 I/O Not used
26 RESET_N I Reset signal input terminal Not used
27 VBUS_DET I VBUS detection signal input from the system controller
28 SUSP_IND/
LOCAL_PWR/NON_PEM0 I/O Not used
29 VDDA33 - Power supply terminal (+3.3V)
30, 31 USBUP_DM,
USBUP_DP I/O Audio serial data input/output with the USB connector
32 XTAL2 O System clock output terminal (24 MHz)
33 XTAL1/CLKIN I System clock input terminal (24 MHz)
34 VDD18PLL - External capacitor connection terminal
35 RBIAS - USB transceiver bias terminal
36 VDD33PLL - Power supply terminal (+3.3V)
• IC Pin Function Description
MAIN BOARD IC102 USB2512-AEZG (USB CONTROLLER)