Toshiba 27DF47 Service Manual page 38

A B
FROM/TO POWER & GROUND
8
FROM/TO SDRAM
Spurious filter
FROM/TO FLASH/GPIO
Place circuit near CP2403
FROM/TO VIF/SIF
7
CP2403
IMSA-6029B-1-28Z136-PT1
28 CVBS_IN/740_INIT CVBS_IN/740_INIT
27 SD_H/SEL_SW
26 GND
25 IF_N IF_N
6
24 IF_P IF_P
23 GND
22 IF_AGC
21 AFT1 NC
NC
20 SPDIF
19 +9V +9V
18 AUDIO_R AUDIO_R
17 AUDIO_L ADUIO_L
16 SIF/2ND_CVBS SIF/2ND_CVBS
15 Pb OUT PB_OUT
14 Y OUT Y_OUT
13 Pr OUT PR_OUT
5
12 DTV_RESET
11 I2C_CLK
10 I2C_DATA
9 TX(DM_MAIN)
8 RX(DM_MAIN)
+3.3V
7 3V3_D
6 AFT0/MSG_REQ
+1.8V
5 1V8_D
4 GND
3 GND
2 5V_D +5V
1 2V6_D +2.6V
4
CP2403 Pin assignment:
Please refer the pin assignment
table on page 6.
GND
3
2
Spurious filter
Place circuit near connector
1
A B
G-23
C
AV IN/OUT SCHEMATIC DIAGRAM
B2407
SD_H/SEL_SW
FCM1608KF-102T02
B2406
IF_AGC
FCM1608KF-102T02
B2408
RESETN
FCM1608KF-102T02
B2409
I2C0C
FCM1608KF-102T02
B2410
I2C0D
FCM1608KF-102T02
B2413
UART1TX_MB
FCM1608KF-102T02
B2414
UART1RX_MB
FCM1608KF-102T02
R2488 C2571
AUDIO_R
470 10 C
B2415
MSG_REQ
FCM1608KF-102T02
B2417
3V3_D
HCB3216KF-601T20
B2418
1V8_D
HCB3216KF-301T25
R2487 C2568
ADUIO_L
B2419
470 10 C
2V6_D
HCB3216KF-601T20
GND
+9V
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D E
(DIGITAL PCB)
PB_OUT
Y_OUT
GND
DDXRB
DDXRA
R2452
22K
R2489
10K
1 2 3 4
-
+
+
-
8 7 6 5
R2486
10K
R2484
22K
DDXLA
DDXLB
FCM1608KF-102T02
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
D E
F G
L2421_1
0.47uH NLV25
L2422_1
0.47uH NLV25
R2457 R2459
330 +-1% 18 +-1%
NC
NC
NC
JG2436
C2527 33P CH
JG2437
C2526 33P CH
JG2438
C2525 33P CH
JG2439
C2524 33P CH
AUDIO_DAC IC
NR2409
IC2406 CS4345-CZZ
4D02WGJ0150TCE
C2517
AOUTR SDIN
8 7
10 C
6 5
4 3
VA BCLK
2 1
GND LRCK
C2518
AOUTL ACLK
10
C
FILT+ VQ NC
B2421
+5V
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
F G
H
8
DTV_ASIC
IC2401 ZR39740HGCF-B0 (6/6 AV I/O)
U8 VDAC_COMP PIXOUT7 T17 NC
PIXOUT6 U16 NC
7
PIXOUT5 T16 NC
PIXOUT4 R16 NC
U9 VDAC_U PIXOUT3 U15 NC
PIXOUT2 T15 NC
PIXOUT1 R15 NC
PIXOUT0 U17 NC
U10 VDAC_Y PIXEN U14 NC
VSYNC T14 NC
HSYNC R14 NC
6
PIXCLK R17 NC
U11 VDAC_V
T9 REFSET
5
T4 DDXRA
U2 DDXRB
U3 DDXLA
P3 ADATAI[0]
U4 ADATAI[1]
4
T2 DDXSA
T1 DDXSB
T3 DDXLB
R2 BCLK
R3 LRCLK
R1 ACLK
3
U1 IEC958
2
PCBDH0
CEF242
1
H
G-24