Service Manuals, User Guides, Schematic Diagrams or docs for : . Rare and Ancient Equipment Voxtel Mobile Phones VOXTEL BD20 VOXTEL BD20
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6. PCB Diagram
6.1 Main PCB
Top View
6-1
PCB Diagram
Bottom View
6-2
10. Schematic Diagram
10.1 Key Pad
10-1
Schematic Diagram
10.2 Main Board
10.2.1 Chipset
10-2
Schematic Diagram
10.2.2 Memory & Melody
10-3
- SIM Card - Charger
L600
BLM11P300SPTM
DC_VOLT
Q600 TA_VCC
C600 SI6459DQ-T1 R600
R601 CN600 33u/10V 1K
7.5K 1318723-6 L601
BLM11P300SPTM F95/A
8
7 GND
SIM_VDD 6 VPP C601 2 3 6 7 R602
SIM_I-O 3 I-O 22n 24
SIM_CLK CLK 4
2 1/10W(1608)
1 RST ICTL
VCC 1 5 8
VR3 U600 SIM_SOCKET
5 R603
3 C602 C603 6 47k 1
+ 10K 10k
10.2.3 Audio & SIM
R604 NC 150p 100p 1
10K 1 PRECHARGE
4 5 2
- (MAX9075) 10k
2
2 47k
3 4
R606 R605 Q601
10K 1K
I-O VPP GND 3 Q602 UMH9N
2SA1576FRT106
R607
0 D601
SIM_RST BACKUP_BATTERY CRS08
U601 VBAT_2
(NC) C604 CLK RST VCC
NC 2 DG9411DL-T1
(15nF) 5
6
R608 100K 4 EN_ORANGE
TA_VCC R609 VBAT
0R2_1%
R610 3 1
47K ON_OFF
- Battery-connector -
VBAT
CN601
GDBC-03SMT-2.5
4
3 4
2 3
BATT_ID 1 2
1
C605 VR3
10n
C606
10n U602
DG9411DL-T1
U703 2
5 6
EARP 4 SPK+
BLM11P300SPTM
EAR_MELODY_L D621
1 3 HVD142
standard
VR3
BAT_ID_Res 3.3K
U603
10-4
2 DG9411DL-T1
5 6
EARN 4 SPK-
VR3 EAR_MELODY_R
1 3
R611
1K (330)
RECEIVER_ON
C607
2.2u R612
(1608) 1.8K
(1K)
C608 33p
C609 BLM11HB102SD x3
100n CON600
BLM10A102SG F600 1
MICIP
R718 2
F601 3
VR3 R719 0 4
F602 5
U604 6
C610 DG9411DL-T1 F603 02-909B0-66BKY
2
47u/4.0V BLM10A102SG
F95/A 5 6
4
V600 V601 V602 V603 V604 V605
C611 C612 C613 C614
1 3 15p 15p 9p 9p
(1608) (1608) (1608) (1608)
R613 REED VR3
C615 1.8K
100n
(1K)
MICIN
AVLC5S02050(50pF) X6 EA(V605,V606,V607,V608,V609,V610)
C616
R614 2.2u
1K (330) (2012)
R615
180K
6
- 7
5 OUT EAR_HOOK
C617 +
NC U702-B
TC75W56FK(TE85L)
(1608) R616
100K-1%
MIC
MIC+
MIC- VR3
MIC
V606 V607
C618 C619 VR3
9p 9p
(1608) (1608) R617 R618
SI9411DL LOGIC TABLE 180K 100K
SWITCH-PRESSED = 1.2V 8 U702-A
JACK_IN L 3 4 2 TC75W56FK(TE85L)
LOGIC NC(#4) NO(#6) -
SWITCH-RELESE = 0.4V 1
JACK_OUT H S- M- M+ S+ 3 OUT JACK_DET
0 ON OFF Vref = 1.0V AVLC5S02050(50pF) X2 EA +
2 5
1 OFF ON switch_pressed L 4
R619
switch_release H 120K
6 1
Schematic Diagram
Schematic Diagram
10.2.4 Connector
10-5
Schematic Diagram
10.3 RF Top Schematic
10.3.1 RF Pam
10-6
Schematic Diagram
10.3.2 RF Main IC
10-7
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