Netzteil, Usb, Keyboard - Grundig 22 VLE 521 BG Service Manual

GRUNDIG Service
Chassisplatte – Netzteil, USB, Keyboard / Chassis Board – Power Supply, USB, Keyboard (VTY190R-3)
19V/5V to 3.3V CONVERSION BLOCK. ST-BY POWER
PSU OPTION
D601 PMEG2020EH 370mA
L602
+5V2_ST
R617
60R
3A
VCC19V
D602
C609 C640
10UF 100nF
L603
25V
VCC19V
60R
3A
ADAPTOR OPTION
EN HI>1.6V LO<0.6V
VCC1V25
IC602
L606 465mA MP2161GJ
60R 2 3
VCC3V3-ST VIN SW
3A
R622
POWER_SW 8 5
EN OUT
10K C613
10UF
1 7
PG FB
6.3V
EN HI>1.2V LO<1.1V
Vout=0.6*(1+(R?+R?)/R?)
3
VCC1.5V
L608 195mA IC603 XCA201A
3 4
60R
VCC3V3-ST Vin Lx
3A
POWER_SW 2 6
CE FB
C616
R634
1UF
100K 6.3V R636
10K
Vo=0.6*(1+(R631+R632)/R636)
EN HI>1.5V LO<0.4V
Vo=1.5V
270mA
L614
1
VCC19V
6
60R
EN HI<>1.21V
8
3A
10
C639 C641
4
10UF 100NF
25V
R619
R651
47K
10K*4
VCC3V3
+5V2_ST VCC5V
PSU OPTION
L609 60R 3A
VCC3V3
L611
2
VCC19V
7
60R
6
3A
8
C627 C663
10UF 100nF R640
C629
25V 4*10k
1UF
EN HI>1.6V LO<0.6V
R674
Power
+5V2_ST
S613
10K
1 C653 C654 POWER_SW
P1
2 TP84
P2
R669
3 C659
100nF 10uF
P3
47R
1nF
4
P4
5
P5
6 TP85
P6 V_adp. 8
7
P7
8 C657
P8
7 9
9
100nF
P9
10
P10
11
Trigger
P11
12 ST-BY
TP86
P12
13 TP88 R624
P13
14 TP90 BL_ON/OFF R627
P14
R633 0R
+VLED
R635 0R
LED_SINK
PSU OPTION
C1219 4.7nF/200V
VCC3V3-ST
L600
R603
240R
10k
S602
0.25A
S605
4
P4
3 IRIN TP89
P3 IRIN
2
LED
P2
1
TP91 R613
P1
T600
1K
TRN 20V 0,54A
D606 D607 D608
C602
R616
1
2.2K
47pF
1 2
4 5
1
L617
VCC3V3-ST
IC601 TPS54339E C601 L601
2 1
VIN VBST
100K*4 7 3 NRS5040T4R7NMGK
EN SW
R625 R623
6 5 100nF
VREG5 VFB
8 4
84.5K
SS GND 6.2K
C612
R626
C608
26.1K
8.2PF
C611
8.2NF
1UF
Vo=0.765*(1+(R625+R623)/R626)
2
L605
VCC1V25
NR4018T3R3M
1600mA
TP38
3.3uH
6 10
Trigger
150K 15.4K
C614 C615
R628 R629
10uF 10uF 3.3V to 1.25V and 1.5V
R630 150K
CONVERSION BLOCK
L607
VCC1V5
NR3015T2R2M
900mA
R631
TP42
0R
15.4K R632
C617
C619
10PF 10UF
4
L604
VCC12V
TPS54335 C634
L613
9
100nF
VIN BOOT
2 NRS5040T100MMGJ
VSENSE PH
R660
7 1.5K
EN COMP
3
R659
15.4K
RT GND
R661
5
GND GND
1.2K
IC608 Vo=0.8*(1+(R659+R660)/R661)
R658
6.2K
1000mA nom / 1.75A max
C665
40" Tcon: 0.75A nom. / 0.85A max
C664
4.7NF
48" Tcon: ???A max
100PF
LNB: 0.25A nom. / 0.9A max
5
VCC5V
C620
L610
IC604 TPS54339E
NRS5040T4R7NMGK
1
VIN VBST
3 100nF
C621
EN SW
5
VREG5 VFB
10UF
4
R647 84.5K R648 66.5K
SS GND
10V
C633 C624
R649
10PF Vo=0.765*(1+(R647+R648)/R649)
26.1K %1
8.2NF
ADAPTOR OPTION
VCC3V3-ST
A Y S600
POWER_SW
2 4
PWR
1
Hi: ON
GND
OE 2
Lo: OFF
1
GND
3
74LVC1G126
VCC3V3
KON DC JACK
C603 IC600
5 1
PWM >200Hz
VCC OE
2
1nF BRI_ADJ
IN A BRI_ADJ
4 3
OUT Y GND
0R SN74LVC1G126DCKR BRI_CTRL
BRI_CTRL
0R BL_EN
BL_EN
VCC3V3-ST
R672
C658
BL_CTRL
BL_CTRL
1nF
1
Hi: Off
10k
Lo: On
T601
BC847B
IR Interface Keypad
VCC3V3-ST
R605
1K
VCC3V3-ST
SAR0 TP87
SAR0
R609
C604
47K
47pF
R614
LED_R
LED_R
10K
TP93
D603
3
VCC3V3-ST IC606
VCC3V3-ST XC6221A252GR-G
4
TP36
2100mA
Vin
VCC1V5
R643
3
CE
C605 C606 C607
1K
10uF 10uF 10uF
C630
2,2uF 6.3V
Pd=160mW
PSU OPTION
VCC5V_EDID
VCC5V
VCC3V3
R645
1k
VCC5V
Side USB Block
L615
VCC5V
3.3uH
C635 C636
10uF 10uF
10V 10V
USB_EN
VCC12V
TP44
VCC3V3
C643 C642
10UF 10UF
L616
25V 25V
VCC5V
3.3uH
C651
C650
10uF 10V
10uF 10V
ADAPTOR OPTION
USB_EN
USB_EN
VCC5V
TP68 2100mA
C622 C623
10UF 10UF
10V 10V
Current
IN
Sense
UVLO
Current
Driver
EN
Limit
Thermal
V_adp. VCC19V
Sense
F600
TP82
TP83
C600
VIN
100nF
Bias &
EN
Voltage Reference
0.6V
+
E.A.
+
-
Lo-Iq
FB
Ramp
generator
OUT
0.66V
POWER INPUT BLOCK
FB for
fixed
+
output
0.54V
1 2
S601
EN
R602
(+)
1K
Ip Ih
1 2
S603
R608
V/P
470R
Enable
Threshold
1 2
Minimum Clamp
OV
VSENSE
S604
R615
R611
(-)
47R 270R
SS
ERROR
TPS54336
AMPLIFIER
KEY 1 2
Voltage
S606
C610 Reference
ST-BY
Hiccup
100nF
Shutdown
Overload Maximum
Recovery
8
SS Softstart SS
7
EN EN Logic
Ref
PWM
SS
5
VFB
OV
+25%
OV
Protection
UVLO
Logic
TSD
VREG5
UVLO
6
VREG5
VIN
2 - 10
L618
VCC12V
C618
VCC2V5 VCC2V5
4.7uF
126mA
VCC3V3-ST
1
Vout
TP37
2
GND
R676
C628
22k
2.2UF
TCON_ON
TCON_ON
TP92
Hi: Off
5 2
Lo: On
T604A
BC847BDW1T1G
VCC5V_EDID
XC8102AA01GR-G
IC607 IC605
20mA
4 1 VCC3V3-ST TPS2530
Vin Vout
TP39
3 2 5
CE GND IN
4
C625
C631 C632
EN
100nF
100nF
1uF R644
1K
L612
VCC5V_EDID
VCC2V5
240R
ADAPTOR OPTION
HDD Imax=1A
IC609
AP2171
5 1
Vin Vout
TP43
VCC5V_USB
4 3
R653
EN Fault
4.7K
C638
10uF 10V
R662
1K
R663 TP46
C647
10k
TP47
NC/100nF
FAULT
FAULT
TP48
TP49
USB_PRTO=L,USB Power abnormal
IC611
TPS2530DBVR
TP58
5 1 VBUS2
IN OUT
R665
4 3
C652
4.7K
EN FLT
10uF 10V
R667
10k
D605 TP72
4 3 USB2_N
1 2 USB2_P
R666
1K
TP74
NC
FAULT
FAULT
Current
IN CS
OUT
Sense
AP2141, AP2151
Charge
Current
AP2161, AP2171
Pump
Limit
FLG
EN
UVLO
Deglitch
OTSD
GND
TPS2530 Thermal
Sense
GND
Soft start
MP2161
+
V TH
COMP
-
Lo-Iq
RST
PDRV
Const.
PWM
On-
FBCOMP
Pulse
+
EN
Driver
+
SW
VOUT
-
Lo-Iq
NDRV
Hi-Z
Lo-Iq
SW
IN
+
+
COMP
-
- GND
COMP
Lo-Iq
-
PG
VIN
TPS54335 TPS54336
Enable
Thermal
Comparator
UVLO
Hiccup
Hiccup
Shutdown
Boot
Logic Shut-
Charge
down
Curr.
Sense
BOOT
Pulse Skip
Boot
UVLO
HS MOSFET
Current
Power Stage
Comparator PH
& Deadtime
Control
Slope Comp.
Logic
Osc. VIN Reg.
LS MOSFET
Curr.
Clamp
Current Limit
Sense
GND
COMP RT EXPOSED THERMAL PAD
TPS54335
VREG5
TPS54339E
VBST
1
Control Logic
2 VIN
1 Shot
SW
3
XCON
VREG5 ON/OFF
CE
Control
4
GND CE CE/
SW
each
ZC
circuit
PGND
SW
OCP
Voltage
PGND
REF Ref
Reference
Chassis TY
2 3
PANEL-VCC
R675
22K
C660
NC
T603
PMV65XP
T604B
BC847BDW1T1G
Panel Power
VCC3V3
VCC3V3
352mA
1
OUT
TP40
3
FLT
C626
NC/100n
S611
VCC
VBUS
D-
D-
D+
D+
GND
GND
5
SHLD
6
SHLD
TP45
SST081016-01
USB1_N
USB1_N
USB1_P
USB1_P
D604
NC
VCC5V_USB
S612
VCC
VBUS
D-
D-
D+
D+
GND
GND
5 BACK USB
SHLD
6
SHLD
TP66
USB-A1D42F-1B4N
USB2_N
USB2_P
2nd USB
OUT
8-ms
Driver
Deglitch
FLT
XC6221A
V IN
-
Curr.
Limit
+
V OUT
Error
Amp R1
R2
V SS