Grundig MPaxx MP 150 Service Manual page 10

Schaltplan und Druckplattenabbildungen / Circuit Diagram and Layouts of PCB
Battery measurement
Keys
T3
-PLAY
GND
T1
-STOP
GND
T4
-FF
GND
T2
-FR
GND
T5
VCC2
3V
R37 R39
47K Q3
BC817
4.7K
GND
GND GND GND
USB-Port
X5
L11
1
D+ L12
2
3
D- L13
MJ-A18
Audio amplifier
C9 56pF
U1
R4 R3 68K
3V
8
47K 1,5V +
-
2 1 R
RIGHT
3
1,5V
+
R81
1,5V
0R 1,5V
+
L
GNDREF 5 7
R5
6 1,5V
-
-
1,5V
47K 4
LEFT
TDA1308T
R6 68K
C8 56pF
GND-A
2 - 3
R71 R72
10K IRLML6302 10K BSS84
Q4 Q5
Q7
BC817
R77
2.2K
IC7E
R82
12 K
GND
11
R73
33R
74LV14
BSS138 C64
Q6
100nF
GND GND
-EN_VCC
EN_VIN
VIN CLEAR
VCC VCC
-PLAY
IC7G
-STOP C47 C43
14
VCC
100nF 7 100nF
GND
-FF
GND
74LV14
GND
-FR
DCEN
R78 IC4C
0R
9 8
GND
-MODE
100nF
R79 74HC125
0R
GND
742792042
GND
74279215 R62 18R D+_uC
D-_uC
74279215 R63 18R
R64 R65
1M 1M
GND GND
C40 L9
TAJD157M006 1.5uH
1
C39 L5
2
3
TAJD157M006 1.5uH C17 C27
R2 R8 MX345GLB
1K 1K 10nF 10nF
L10
GND-A GND-A GND-A 1.5uH
GRUNDIG Service
MP MP150 Schaltplan und Druckplattenabbildungen / Circuit Diagram and Layouts of PCB
AXX
VCC Display connector
3V
COMP
10
-WR
-RD
DISP_EN
D0
D1
D2
IC4E D3
D4
14
VCC D5
D6
7
GND D7
74HC125
3V
VCC
C29 C37
100nF 3V
VCC2
USB controller
-INT_USB
R68
VCC
3V
10K
3V R66
VCC
ALE
R67
-CS_USB
-RD
-WR
-RESET
SUSPEND
SUP_AN
R69 10K
VCC
3V
Charge pump for LCD power supply
X6
GND-A
2 - 4
+5V
R50
10K
R51
1.2K
V0
GND
-WR (DISP_RS)
-RD (DISP_R/-W)
R27 10K D0
R28 10K D1
R29 10K D2
R30 10K D3
R31 10K D4
R32 10K D5
R33 10K D6
R34 10K D7
VCC
C58
QU3
GND
IC2
22pF 22 1 D0
C59 XTAL1 D0
2 D1
D1
D2
23 3
GND XTAL2 D2
D3
4
D3
22pF 6MHz 26 6 D4
D+ D4
7 D5
D5
25 8 D6
D- D6
9 D7
D7
0R
28
A0
ALE_USB -INT_USB
0R 10 14
ALE INT
11
CS
-RD
15 21
RD GL
-WR
16 13
WR CLKOUT
18 17
VCC DMACK DMREQ
19
3V
EOT
27
VOUT3.3
20 24
RESET VCC +
C61
12 5
SUSPEND GND
100nF
PDIUSBD12
3V
VCC
C48 470pF
D3
R11
IC7F IC7D
BAR43
10K
C6
13 12 9 8
470nF BAS16
74LV14 74LV14
MP MP150
AXX
ST4
GND
1
+5V
2
3
4
5
DISP_EN
6
D0
7
D1
8
D2
9
D3
10
D4
11
D5
12
D6
13
D7
14
PFC_CON
VCC
3V
C60
10uF
GND
+5V
C22
D8B
470nF
GND
GRUNDIG Service