Amplifier - Grundig 32 GFB 5622 Service Manual

GRUNDIG Service
Chassisplatte – Verstärker / Chassis Board – Amplifier
E21
F23
10UF
SC_LIN C502 F22
10UF
F21
SC_RIN C503
G22
G21
R-C Low Pass Filter:
Fc=1/2*3.14*(R+Rint)*C
Fc = 45kHz
C514
C513
Rint=600Ohm
3.3NF
3.3NF
EAR_OUT_L R502 470R C22
C21
EAR_OUT_R R503 470R
D22
D21
AUD_VRM E22
E23
AUD_VRP
AUD_VCM G18
BD500
0R
AUDIO POWER
VCC3.3V
I2C ADDRESS: 46
R506
15K
R508
FAULT
0R
28
29
I2S_A_LRCLK R509
I2S_A_BCLK 100R*4
I2S_A_BCLK
30
I2S_A_DATA
AMP_PDn
R512 1k
31
C540 C541 C542 C543
33PF 33PF 33PF 33PF
R515
100R*4
11
AMP_SDA
AMP_SCL
10
R517
VCC3.3V
10K
AMP_RSTn
9
R525
1k
D504
1
AUX_RST
8
3
2
BAT54CW-7-F T500
BC847BW
EAR_OUT_R C570 1UF
32
EAR_OUT_L C575 1UF
L
7 BQ
Serial
SDIN Audio
Port R
7 BQ
DAP
Click and Pop
Sample Rage
MCLK
Control
SCLK Autodetect
Microcontroller
LRCLK and PLL
Based
SDA Serial System
TAS5739
SCL
Control Control
Terminal Control
Power on (trigger: VCC) Power on (trigger: VCC)
8 9
º ⁄
IC100E
ADIN_L0
ADIN_R0
I2S_OUT_A_BCLK/PTSIN1_D7/GPD_11
ADIN_L1
I2S_OUT_A_MCLK/PTSIN2_ERROR/GPD_12
ADIN_R1
ADIN_L2
ADIN_R2
NT72453
AUDIO/IF
PTSOUT_CLK/PTSIN2_CLK/DEMODOUT_CLK/GPD_13
VIF_IF_AGC/DEMOD_IF_AGC/PTSOUT_VALID/PTSIN2_VALID/DEMODOUT_VALID/GPD_14
DACOUT_L0 DEMOD_Emerg/PTSOUT_START/PTSIN2_START/DEMODOUT_START/GPD_15
DACOUT_R0
DACOUT_L1
DACOUT_R1
AUD_VRM
AUD_VRP
AUD_VCM
C504 4.7NF
C505
C507 47NF R500
470R 1UF
2.2NF
C508
C509 4.7NF
R501
C510
C515 47NF 470R
100NF
IC500
TAS5739MD
C519
C521
10UF 100NF
13
AVDD
14
A0/FAULT
15
MCLK
16
C522
NC
17
10UF
DVSS
C532 18
VR_DIG
100NF 19
/PDN
20
LRCLK
21
SCLK
22
SDIN
23
SDA
24
SCL
R513 R514
100K 4.7K
RES_AUD
VCC3.3V
C555
100NF
VCC_AUDIO
VCC3V3-ST
R524
84.5K
D500
VCC_AUDIO
BAT54CW-7-F
R518
VCC_AUDIO
D503
2.7K
BAT54CW-7-F R528
NC
C564
R530
4.7UF R531
1K
1 6.2K
R537
1
IC502 6.2K
R535 10K*4
AP432SRG-7
OUT_A
2 HB
th
4
FET Out OUT_B
Order
Noise
Shaper
and
OUT_C
2 HB
PWM
OUT_D
FET Out
Protection
Logic
HPL_OUT
HPR_OUT
HPL_IN HPR_IN
0
32
NT72453-BA
K2
I2S_A_DATA
I2S_OUT_A_DATA/PTSIN1_D5/GPD_9
K1 I2S_A_LRCLK
I2S_OUT_A_WS/PTSIN1_D6/GPD_10
L3 I2S_A_BCLK
J5 I2S_A_MCLK
TP48
J3
I2SIN_DATA/PTSIN1_D2/GPD_6
J2
I2SIN_WS/PTSIN1_D3/GPD_7
R3
I2SIN_BCLK/CI_HA1/CI_ALE8/GPE_3
K3
DEMOD_RST
I2SIN_MCLK/PTSIN1_D4/GPD_8
M3 SPDIF_IN TP49
SPDIF_IN/CI_IREQ#/GPD_27
M2 SPDIF_OUT
SPDIF_OUT/CI_IORD#/GPD_28
J6
J4 GPD14 R504
K6
J22
SIF+
J23
SIF-
H23 R510 0R
DEMOD+
H22
R511 0R
DEMOD-
J18
IF_2+
J19 C548
IF_2-
NC
V15
NC
W15
CLK_OUT
C506 33NF
34
49
EPAD
48
PGND_AB
47
C524
OUT_B
46 C523
PVDD_B
33NF
45 100nF
BST_B
44
BST_C
43
C527
C530
PVDD_C
42
100nF
OUT_C C528
33NF
41
PGND_CD
330PF
40
OUT_D
39 C533
C535
PVDD_D
38 100nF
BST_D
33NF
37
HPVDD
C538
VCC3.3V
1UF
VCC_AUDIO
C550 TP55
1UF
C551 C552 C553 C554
C556
10uF 10uF 10uF 10uF
10UF
35V 35V 35V 35V
HPR TP56
HPL TP57
D501 D502
R516 22R*4
C559 C558
= 12V R524: 30.9K %1
10nF 10nF
= 24V R524: 84.5K %1
!
‹
2 - 10
AMP_RSTn
FAULT
AMP_PDn
AMP_SDA
AMP_SCL
HPh_DETECT
AUX_RST
SC_RIN
SC_LIN
SOC_IFAGC
D_IF_SoC_P
D_IF_SoC_N
DEMOD_RST
100R SOC_IFAGC
R519 100R
D_IF_SoC_P TP59
SPDIF_OUT
D_IF_SoC_N
L506
TP60
VCC3.3V
C549
NC
C560 C561
100nF 10pF
L500
NR 6045T 220M
TP50
C511
RP501
220NF
100R*4
C512
C516 220NF
330PF
C518
330PF
C520
RP502 L501 220NF
100R*4 NR 6045T 220M SP_LEFT+
SP_LEFT-
SP_RIGHT-
TP51
SP_RIGHT+
L502
TP52
34
NR 6045T 220M
RP503
C529
C531
100R*4
220NF 220NF
C534
330PF
RP504
L503 C537
100R*4
NR 6045T 220M 220NF
TP53
TP54
L504
VCC24V
30R
4A
33
3 S501
2
4
1
TP58
PHONE_JACK_PJ-3600
R529
VCC3.3V
10K
R533 HPh_DETECT
100R
• ª
› fi
Chassis CN
AMP_RSTn
FAULT
AMP_PDn
AMP_SDA
AMP_SCL
HPh_DETECT
AUX_RST
SC_RIN
SC_LIN
SOC_IFAGC
D_IF_SoC_P
D_IF_SoC_N
DEMOD_RST
SPDIF OUT
S502
1
Vin
2
Vcc
R505 3
GND
10k
OPT-111
S500
1
P1
2
P2 35
3
P3
4
P4
MOLEX_5025850470