Philips 26MD257B/37 Service Manual page 129

Scaler Board Schematic Diagram-Flash
1 2 3
A
DV33SB
R358
TP380
10K 1/10W
C351
10U 25V ORESET#
R364 220R 1/10W
Q351
1
MMBT3904
R393
NC/0R05 1/8W
R366
D350 47K 1/10W
FOR SW
BAS32L
B
DV33SB
R346
22K 1/10W
R369 8K2 1/10W R350 0R05 1/10W
OPWM0
R347
22K 1/10W C355 C356 C357 C352
C
10N 50V 1N 25V 47P 50V NC/10U 25V
OPWM0(5371 system 27MHz enable):
Low:Disable
High:Enable
PDA1
25
PDA2
24
PDA3
23
PDA4
22
D
PDA5
21
PDA6 20
PDA7 19
PDA8
18
PDA9
8
PDA10
7
PDA11
6
PDA12 5
PDA13 4
PDA14
3
PDA15
2
PDA16
1
PDA17
48
DV33 PDA18 17
PDA19 16
PDA20
9
PDA21
10
PDA22 0R05 1/10W R359
13
R377 POCE0#
E 26
10K 1/10W POOE0# 28
C359 POWE# 11
10U 25V
NOR ORESET#
12
R378
1 Q353
MMBT3904
C362 4M NOR FLASH #0
220R 1/10W 10P 50V
D351 R383
4K7 1/10W
BAS32L
PDA1
25
PDA2
24
PDA3
23
PDA4
22
F PDA5
21
PDA6 20
PDA7
19
PDA8
18
PDA9
8
PDA10
7
FLASH R359/R360 PDA11
6
PDA12 5
PDA13
4
PDA14
3
PDA15
4M NO 2
PDA16
1
PDA17
48
PDA18 17
PDA19
8M YES 16
PDA20
9
PDA21
10
PDA22 NC/0R05 1/10W R360
13
POCE1#
26
G
POOE0# 28
POWE# 11
NOR ORESET#
12
4M NOR FLASH #1
H
1 2 3
4 5
DV33
TP361
TVTREF#1
JTAG_RST#
JTAG_TDI
JTAG_TMS
JTAG_TCK
JTAG_RTCK R363 33R 1/10W
JTAG_TDO R365 33R 1/10W
JTAG_DBGRQ
1
TP362 1 JTAG_DBGACK
TP363
R367 R368
10K 1/10W 10K 1/10W
JTAG INTERFACE
600R/200mA BLM18AG601SN1D FB351 DV33SB
27MHz
1 2
1 6 C353 C354
Vc VDD
100N 16V
100N 16V
2 5
OE NC
OXTALI
3 4
GND OUT
R373 51R 1/10W C358
X350 22P 50V
U350
PDD0
29
A0 D0
PDD1
31
A1 D1
PDD2
33
A2 D2
PDD3
35
A3 D3
PDD4
38
A4 D4
40 PDD5
A5 D5
42 PDD6
A6 D6
PDD7
44
A7 D7
30
A8 D8
32
A9 D9
34
A10 D10
36
A11 D11
39
A12 D12
41
A13 D13
43
A14 D14
PDA0
45
A15 D15/A-1
A16
14 NOR ORESET#
A17 WP/ACC
15 DV33
A18 RY/BY
R376 FB352
47
A19 BYTE
NC/0R05 1/10W
A20
37 1 2
NC VCC
600R/200mA BLM18AG601SN1D
CE
27
OE GND1
46 TP378 C361 C360
WE GND2
100N 16V 10U 25V
RESET
S29AL032D70TFI040
U352
PDD0
29
A0 D0
PDD1
31
A1 D1
PDD2
33
A2 D2
PDD3
35
A3 D3
PDD4
38
A4 D4
40 PDD5
A5 D5
PDD6
42
A6 D6
PDD7
44
A7 D7
30
A8 D8
32
A9 D9
34
A10 D10
36
A11 D11
39
A12 D12
41
A13 D13
43
A14 D14
PDA0
45
A15 D15/A-1
A16
14 NOR ORESET#
A17 WP/ACC
DV33
15
A18 RY/BY
NC/0R05 1/10W R389 FB353
47
A19 BYTE
A20
37 1 2
NC VCC
NC/600R/200mA BLM18AG601SN1D
CE
27
OE GND1
46 TP379 C370 C369
WE GND2
NC/100N 16V NC/10U 25V
RESET
NC/S29AL032D70TFI040
4 5
7.Circuit Diagrams and PWB Layouts
6 7 8
S-07
J350
MCLK
DV33 DV33
1 2
3 4
R390
5 6
7 8 4K7 1/10W
9 10 R391 R392
4K7 1/10W 4K7 1/10W
11 12
13 14
15 16
DCLK SMCE#
17 18
19 20 1 TP364
NC/10x2 W/HOUSING
CN254-20DSMD
TRAP-MODE CIRCUIT
DV33
C350 R371
10K 1/10W
100N 16V U351 4K7 1/10W
TP350
NC/M24C32WBN6P PDIP8
TP374
1 8
E0 VCC
2 7 GPIO_1
E1 WC
3 6 SIF_SCL R372 100R 1/10W
E2 SCL
SIF_SDA R370 100R 1/10W
4 5
VSS SDA
U353
M24C32-WMN6TP GPIO_1(5371 EEPROM write control):
1 8
A0 VCC write_enable: Low
2 7
A1 WP
write_disable: High
3 6
A2 SCL
4 5
GND SDA
U353 AND U351 IN SAME LOCATION.
R361
NC/4K7 1/10W
MT5372 SYSTEM EEPROM
LED_G:
+5V_STB
Enable: High
Disable(Stand_By): Low
LED_A:
DV33SB
Enable(Stand_By): Low
Disable: High
D352
POWER_ON/OFF R385 100R 1/10W POWER_ON_OFF
LED_A R381 100R 1/10W
LED_G R380 100R 1/10W
RC6 R382 100R 1/10W
63386 6P 2.0MM
TO IR BOARD
GPIO_3(MENU key press detect):
Key press: Low
No: High
DV33SB DV33
R395 R394
3K9 1/10W 4K7 1/10W CN353
R386
GPIO_3 100R 1/10W MENU
4
ADIN1 KEY 3
R387 2
100R 1/10W POWER_ON_OFF
1
63384 4P 2.0MM
TO KEY PAD BOARD
6 7 8
9 10
+5V_STB
1,2 +5V_STB
DV33
2,3,4,5,6,11,13,14,16 DV33
DV33SB
2,5,6,15,16 DV33SB
GND
1,2,3,4,5,6,8,9,10,11,12,13,14,15,16,17 GND
AGND_PLL
1,2,3,4,5,6,8,9,10,11,12,13,14,15,16,17 AGND_PLL
ORESET#
5 ORESET#
OXTALI
5 OXTALI
OPWM0
5 OPWM0
POOE0#
5 POOE0#
POCE0#
5 POCE0#
POCE1#
5 POCE1#
POWE#
5 POWE#
PDD[0..7]
5 PDD[0..7]
PDA[0..22]
5 PDA[0..22]
NOR FLASH
JTAG_RST# TP355
1
5 JTAG_RST#
JTAG_TDI TP356
1
5 JTAG_TDI
JTAG_TMS TP357
1
5 JTAG_TMS
JTAG_TCK TP358
1
5 JTAG_TCK
JTAG_RTCK 1 TP359
5 JTAG_RTCK
JTAG_TDO 1 TP360
5 JTAG_TDO
R397 R398
4K7 1/10W
JTAG
TP377
1 1
CN351 E10 CN352 E8
U0RX
5,12 U0RX
OSCL0 U0TX CN353 G8
5,12 U0TX
OSDA0
C350 C6
SMCE#
C352 C3
5 SMCE#
DCLK
5 DCLK
C354 C5
MCLK
5 MCLK
C356 C2
OSDA0 C358 C5
5 OSDA0
OSCL0
C360 E4
5 OSCL0
C362 E2
C364 E7
SIF_SDA
4,14 SIF_SDA
C366 E7
SIF_SCL
4,14 SIF_SCL
C368 G7
GPIO_1
C370 G4
5 GPIO_1
+5V_DVD
C372 G9
2 +5V_DVD
RC6
5 RC6
D351 F1
LED_G
5 LED_G
FB350 D7
LED_A
5 LED_A
POWER_ON/OFF FB352 E5
5 POWER_ON/OFF
GPIO_3 J350 A6
5 GPIO_3
ADIN1
Q353 E2
5 ADIN1
ADIN0
5 ADIN0 R347 C1
DVD_LED
5 DVD_LED
R349 G9
R351 A4
R353 A5
R355 A5
DV33SB
R357 A5
R359 E3
R361 D7
R375 R374 R363 B4
4K7 1/10W
4K7 1/10W CN351
R365 B4
R399 R367 B5
CN352 R369 C1
U0RX 100R 1/10W
1
2 R371 C7
6 U0TX 3 R373 C4
5
R375 E9
R400
4
R377 E2
100R 1/10W
3
R379 E7
CONN
2
R381 E6
1
R383 F1
R385 E6
FOR CODE DOWNLOAD,DEBUGGING,
R387 G6
R389 G4
FACTORY ALIGUMENT AND
R391 B8
R393 B2
COMPAIR MODE
R395 G6
R397 C8
R399 E9
TP350 C7
TP352 E8
TP354 E8
DV33 DV33
TO DVD KEY PAD
TP356 C11 TP357 C11
TP358 C11 TP359 C11
TP360 C11 TP361 A5
R348 R388
4K7 1/10W 2K2 1/10W TP362 B5
TP364 B6
TP366 E10 TP367 E10
R362
CN354
TP368 G8
22R 1/10W
ADIN0 TP370 G8
1
2 TP372 F10 TP373 F10
DVD_LED R349
3 TP374 C8
22R 1/10W
4
TP376 E8
+5V_DVD
5
TP378 E4
TP380 A2
63385 5P 2.0mm U351 C7
U353 C7
9 10
TPM1.0U LA 27
11
A
B
C
CN354 G10
C351 A1
C353 C4
C355 C2
C357 C2
C359 E1
C361 E4
C363 G10
C365 E7
C367 G7
C369 G4
C371 E7
D350 B1
D352 E7
D
FB351 C4
FB353 G5
Q351 B2
R346 C1
R348 F9
R350 C3
R352 A5
R354 A5
R356 B4
R358 A2
R360 G3
R362 G9
R364 B2
R366 B1
R368 B5
R370 C8
E
R372 C8
R374 E10
R376 E4
R378 E1
R380 E6
R382 E6
R384 E7
R386 G6
R388 F9
R390 A7
R392 B8
R394 G7
R396 E7
R398 C8
R400 E9
TP351 E8
F
TP353 E8
TP355 C11
TP363 B5
TP365 E8
TP369 G8
TP371 F10
TP375 F10
TP377 C9
TP379 G4
U350 D3
G
U352 F3
X350 C3
H
11