Circuit Diagram (Part 5) - Philips LX7000SA Service Manual

AVC BOARD - CIRCUIT DIAGRAM (PART 5)
1 2 3
+5V6
+D
A
0V 3587
2.6V
*
3574 1K
0.7V
7539
BC847BW
10K
GND_D GND_D
B
TU_RDS_IN
+D
5582
2u2
C
7531
5 12
4.9V
SAA6581T / SAA6579 4.9V
VDDA VDDD
4 57 Khz POW SUPPL 3
2.5V MPX VREF
BANDPASS &
(8th ORDER) RESET
GND_D GND_D
SYNC 10
8 SCOUT
0.1V
VSSA RDCL 16
7 CIN
CLOCKED RDS/RBDS
RDDA 2
0.1V
COMP DEM
D
15 TCON
OSC SIGNAL
QUAL 1
TEST
& QUALITY
9 MODE
CTRL
CLK DET
GND_D
VSSA VSSD
13 14 6 11
2.2V
2.4V
3555
GND_D
E
GND_D
220K
4M332
5532
1
2
AT-51
F
GND_D GND_D
G
6535
+5V6 +D
1N4003
GND_D
GND_K
GND_D GND_D
H
+5V6
+5V6
I
GND_D
GND_D
@ For LX8000SA/21R/37S only
Provision in layout only
*
DC voltage measured in DISC mode PLAY
Note : Some values may varies, see respective parts list for correct value.
1 2 3
10-9
4 5 6
+5V6
+5V6
+D
3.4V
3.4V
*
3588
BC857BW BC857BW
0V 2.6V
7535
7537
3582 1K
0.7V
LCD_Back_ON
7538
3.4V BC847BW
10K 3.4V
LCD_BackLit_Dim
GND_D
GND_D GND_D
+L
For /22S version only
*
GND_D
MUTE_LO
GND_D
2u2
2.5V
@ 3552
GND_D
2550
10K 3512 470R
GND_D
LCD_BackLit
GND_D
3550 10K
1.19KHz Tu_RDSCLK
2.5V
MUTE_LR_SUB
3551 10K LCD_BackLit_Dim
Tu_RDSData
2.5V
100p 2567
TU_CLK
GND_D
@ 3553
GND_D TU_ENABLE
10K
GND_D
2572
TU_RDS_IN
1n
LCD_D0
LCD_D1
LPS OPTION Version
4500 LPS
4530
No LPS
+C
% 3568 Version
0 ohm Ghost key
3K9 LX7000SA/22S
GND_D
12K LX8000SA/21R
GND_D
# 27K LX8000SA/22S
GND_D
4.9V
None
LX8000SA/37S
GND_D
# Use 3K9 for LX8000SA/22
BC847BW
GND_D
4 5 6
7 8 9
FE-BT-VK-N
+5V6 1530
LCD_Back_ON
GND_D
TMP88CU74YF
7536
GND_D
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
65
V24
66
V25
8-Bit high breakdown voltage
8-Bit h. break. v.
GND_D
67 V26 out w. latch P8 output port with latch P7
80k pull down 80k pull down
68
V27
P6-P9 source open drain
3508 69
V28
VFT driver circuit (automatic display)
470R
70 V29
71 V30
3511 470R 72 V31
Program
RAM ROM
3505 470R 73 V32
Counter
3506 470R 74
V33
CPU
3504 470R 75
V34
76 V35
GND_D 77 V36
VKK
78 sink o. drain
8-Bit Input/Output 8-Bit I/O P2 8-Bit Input/Output
3513 470R 79 -SCK1
sink o.drain (tri state)
(tri-state) P0
3514 470R 80 SI1
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16 17 18 19
+D
GND_D
5530
5531
*
GND_D DT-38
32K768
GND_D
+L
GND_D
GND_D
*
* 2564
1u
GND_D
3561
0.2V "ON"
100K
"ON" 0.7V
3548
7533
7534 BC847B
4K7
0V
GND_D GND_D
GND_D
GND_D GND_D
7 8 9
10-9
10 11 12
+D
+D
GND_D
6536
+L +5V6
1N4003
*
5533 6531
+5V6_ECO
2u2
1N4148
GND_D
+C
GND_D
GND_D
6532
+5V6
48 47 46 45 44 43 42 41
1N4003
VDD
40
GND_K
VAREF
39
8-Bit high breakdown v.
output port with latch P6
VASS 38
GND_K
80k pull down 3543 470R
AIN13 37
I2C_CLKC
3542 470R
AIN12 36
I2C_CLKS
3541 470R
AIN11 35
I2C_CLK
3540 470R
AIN10 I2C_DATA
34
3539 470R
AIN7
33 VolB
3538 470R
AIN6 32 VolA
3537 470R
AIN5
31
DI_LOCK
3536 470R
AIN4 30
LPS_WAKEUP
8-Bit A/D
Converter 3535 470R
AIN3 29 Options
3534 470R NTC
AIN2 28
3533 470R
AIN1
27 KEY1
3-B. I/O P3
3532 470R
AIN0 26 KEY0
P1 ( tristate )
3531 470R
-SCKO
25 TU_DATA
20 21 22 23 24
GND_D
I2C_DATA_DVD
I2C_CLK_DVD
IntReq_DVD
GND_D
PWD_DN 3549
GND_D
1M
+D
7532
4.9V
M24C02 8
1
VCC
E0
2
E1
GND_D
3565
3 5
E2 SDA
I2C_DATA
1K
6 4.9V
4.9V
SCL
7
WC_
VSS
4
3566
I2C_CLK
GND_D GND_D
1K
3139 118 55510...8239_210_91843...for 3474 pt3 dd wk0232
10 11 12
13 14 1530 A8 3586 B9
1531 A14 3587 A3
2530 H3 3588 A6
AVC Circuit Diagram (Part 5)
2531 H3 3589 B2
2532 I3 3590 B5
2533 I2 3596 B10
2550 D4 3598 D14
2551 C3 3599 B8
2552 C1 4500 C6
2553 D1 4501 H7
2554 C1 4530 C6
A 2560 G6 5530 F9
2562 I7 5531 F9
FE-BT-VK-N 2563 H7 5532 F3
1531
2564 H7 5533 B12
1
2565 H12 5581 H10
+D
2566 E12 5582 C3
2
+L 2567 D6 6531 B12
3 2568 H8 6532 B12
GND_D 2569 F11 6533 F9
4
SACD_LED 2570 B11 6534 G7
2571 C12 6535 G2
5
LPS_LED
2572 D4 6536 B12
B
2573 F8 7531 C2
6
LED_GRN
2574 G9 7532 H10
7
2575 G9 7533 H9
GND_K
2576 H9 7534 H7
8
VolB
2577 H8 7535 A3
9 2578 B11 7536 B7
VolA
2580 F2 7537 A6
10
2581 F3 7538 B5
LPS_WAKEUP
3500 B10 7539 B2
11
KEY1
3501 F9
3502 B10
12
KEY0
3503 B9
C
13
RC5 3504 D7
3505 D7
3506 D7
3507 B9
3508 C7
3509 B9
3510 B8
3511 D7
3512 D6
+L +C +C
3513 E7
3514 E7
D
3515 E8
3516 E8
3517 E8
3518 F8
3519 E8
*
3520 F8
LPS_WAKEUP
3521 E9
3522 E10
KEY1
3523 E10
KEY0
3524 E10
3525 E10
3526 E10
Key0, Key1 pull-up E
3527 E10
3528 E10
3529 E11
3530 E11
3531 E11
3532 E11
3533 E11
3534 D11
3535 D11
3536 D11
3537 D11
3538 D11
F
3539 D12
3540 D11
3541 C12
3542 C11
3543 C12
3544 B11
3545 B11
3546 B11
3547 B10
3548 H8
3549 G12
G
3550 D4
3551 D4
3552 C5
3553 D5
3554 E3
3555 E3
3556 C1
3559 A5
3560 H6
3561 H7
3562 I7
3563 H11
H
3564 H11
3565 H11
3566 I11
3567 G5
3568 H5
3569 A1
3570 E14
3571 D14
3572 A4
3573 A3
3574 B2
3575 A2
I
3576 B11
3577 B10
3579 B3
3580 B9
3581 B9
3582 B5
3583 A5
3584 A6
3585 A7
13 14