Philips MX3900D Service Manual page 19

FRONT DISPLAY PART - CIRCUIT DIAGRAM (For pt 4 board)
1101 C2 2101 F3 2105 G3 2109 F6 2113 G5 2117 H5 2121 G12
1104 A13 2102 F2 2106 H1 2110 F5 2114 H4 2118 H5 2122 G10
1105 B13 2103 G2 2107 H2 2111 F8 2115 H7 2119 H7 2123 G10
1106 E13 2104 G1 2108 F6 2112 F5 2116 H7 2120 H7 2124 G10
1 2
+D +D
7106 7107
BC847B BC847B
A
+D +D
B
7108 7109
BC847B BC847B
C
1101
1
+C
2
3
4
RotaryVolB
5
GND_B
6 RotaryVolA
D
7
Rot_Jog_B
8
9
Rot_Jog_A
10
11
12
Stdby_LED
13
E +E
FE-ST-VK-N
6119
+E
1N4003
F
2102
1n0
+D
7102 5 12
SAA6581T
VDDA VDDD
2u2
4 MPX 57 Khz POW SUPPL VREF 3
BANDPASS &
G
2105
(8th ORDER) RESET
SYNC
10
8 SCOUT
3109
VSSA RDCL
16
7
CIN
CLOCKED RDS/RBDS
1K0
RDDA
2
COMP DEM
15 TCON
OSC SIGNAL
QUAL 1
TEST
& QUALITY
9 MODE
CTRL
CLK DET
3111
1K0
VSSA VSSD
13 14 6 11
H
3113
3114
220K 2K2
5105
2106
2107
82p
AT-51
47p
1 2
6-2a
2125 G11 2129 H11 2133 A1 2137 B1 2141 F5 3107 F1
2126 H9 2130 B8 2134 A2 2138 B2 2142 H9 3108 F1
2127 H11 2131 B8 2135 A2 2139 B2 3105 F4 3109 G3
2128 G1 2132 B9 2136 A3 2140 B3 3106 F4 3110 G3
3 4 5
HN-13LM05T
-F2
7100
TMP88CU74F
64 63 62 61 60 59 58 57 56 55 54
65
P12
V24
66
V25
P13
8-Bit high breakdown voltage
8-Bit h. break. v.
67
V26 out w. latch P8 output port with latch
P14
80k pull down
68
V27
P15
69 V28
P16 VFT driver circuit (automatic display)
70 V29
P17
71 V30
Key1 P18
72
V31
Key0 P19
RAM
73 V32
P20
6103 1N4148 74 V33
LPS_LED
6100 1N4148
75
V34
Stdby_LED
6101 1N4148
76 V35
AUX_SEL
77
V36
VKK
78
sink o.
-Vkk
8-Bit Input/Output
79 -SCK1
LPS_LED (tri-state) P0
SI1
80
RC6
DVD_5V
1 2 3 4 5 6 7 8 9
Rot_Jog_A 10 11 12 13 14 15 16 17 18 19
5102
+5V6
+E
3201
10K
6105
VU_IN
BAS316
TuRDS
3118
7104
BC847B
4K7
TuRdsClk
+C
TuRdsData
3130
680K
7105
BC847B
3 4 5
3111 H3 3115 F8 3119 G8 3123 H9 3127 H11 3131 H6 3159 F10
3112 H3 3116 F8 3120 H9 3124 H10 3128 H9 3132 H5 3160 F10
3113 H2 3117 F8 3121 H10 3125 H4 3129 H10 3133 H9 3161 F12
3114 H2 3118 F5 3122 H6 3126 H9 3130 H5 3158 F10 3162 F12
6 7 8
1100
5100 6108
2u2
-F1 BAS316
+C
53 52 51 50 49 48 47 46 45 44 43 42 41
VDD 40
GND_B
VAREF 39
8-Bit high breakdown v.
38
P7 output port with latch P6 VASS
GND_B
80k pull down
80k pull down
37
AIN13
P6-P9 source open drain TuRdsData
AIN12 36
TuData
AIN11 35
TuClk
AIN10 34
A0
AIN7 33
A1
Program
ROM
32
Counter AIN6
A2
AIN5 31
MUX_DET
CPU
AIN4 30
8-Bit A/D VU_IN
Converter
29
AIN3
Options
AIN2 28
DVD_On
27
drain AIN1
Key1
8-Bit I/O P2 8-Bit Input/Output 3-B. I/O P3
AIN0 26
(tri state) P1
sink o.drain ( tristate ) Key0
-SCKO
25
I2C_Clk3
20 21 22 23 24
5103
+D
32K768
7103
M24C02 8
1
VCC
E0
2
E1
3 5 3117
I2C_Data
E2 SDA
1K0
6
SCL
7
WC_
VSS
4
3119
I2C_Clk1
1K0
+C
3120
6106
F1
+5V6 +D
3123
1N4003
3128
+5V6 +5V6
-Vkk
BZX79-B5V6
6 7 8
6-2a
3163 G12 3167 A3 3171 A11 3175 D3 5100 B8 5105 H2 6105 F4
3164 G11 3168 B2 3172 A11 3176 D4 5102 E5 6100 D4 6106 H7
3165 G11 3169 B3 3173 B11 3177 E12 5103 E6 6101 D4 6107 H9
3166 A1 3170 A11 3174 D3 3201 F5 5104 F7 6103 D4 6108 B9
9 10 11
+E
3170
I2C_Clk_DVD
10K
3171
I2C_Data_DVD
10K
3172
10K
3173
+5V6_ECO 10K
6113
+5V6
1N4003
+E
TuRDS
TuStereo
TuClk
TU_GND
TuData
3164
TuCE
22K
3121
F2
-F1 -F2
10R
10R 3124
10R
10R 3129
6107
DC Voltage measured in DISC Mode PLAY
* Provision in layout only
9 10 11
6113 B9 7104 F6 7108 B2
6118 F4 7105 H4 7109 B3
6119 E3 7106 A1
7103 F7 7107 A3
12 13
1104
1
I2C_Clk_DVD A
2
3
I2C_Data_DVD
4
I2C_Clk2 DVD_IntReq
FMN
I2C_Clk3
1105
1
A0
B
2
A1
3
A2
4
I2C_Clk3
5
6
I2C_Clk2
7
8
I2C_Clk1
C
9
10
I2C_Data
11
DVD_On
12
DVD_5V
13
+5V6
14
15
-Vkk
D
16
F1
17
F2
FE-ST-VK-N
E
1106
1
PowerDown
2
3
LPC
4
5
+5V6_ECO
MUX_DET 6
F
7
MUX_VU
8
3161 1K0
9
3162 1K0
10
2121 100p
11
3163 1K0
12
13
G
FE-ST-VK-N
TU_GND
GND_B
H
8239 210 94114 ..3502p4 dd wk0404
12 13