Block Diagram - Toshiba 21N21B2 Service Manual

MICON W/T.TEXT IC
IC101 OECF012A
Q102
LED DRIVE
49 ON_TIMER
Q103
LED DRIVE 9 STANDBY LED
ON TIMER
D103
STAND BY/P.ON
D101
39 AVDD1
31
AVDD2
25 AVDD3
AT+5V
OS101 1 1
REMORT
OSC_OUT
50
X101
4MHz
51 OSC_IN
AUDIO SW IC
IC701 MM1501XNRE
E-1
CH UP
CH DOWN
VOL UP
KEY_IN
56 VOL DOWN
I2C
P.CON+5V
SDA 19 5 SDA MEMORY IC
IC199
6
SCL 20 SCL
S-24C04BFJ-TB
OSD-B
15
OSD-G 16
OSD-R
17
CVBS2 33
CVBS1 34
X602
AV1 42
3.579545MHz
X601
4.433619
FORTHD VCR1 MHz
53
P.CON+5V
P.CON+8V
Q204
SIF BUFFER
IN2 4
6
IN1
OUT 2
1
SW
R OUT
L OUT
FOR VCR
SOUND+B
SOUND AMP IC
IC1002
AN5276
5 10 7
VCC
+

BLOCK DIAGRAM

TU001
SCL SDA BPL AGC
IF
4 5 7 1
11
CHROMA IC
IC201 STV2246E
8 6 7
34 OSD-B
35 OSD-G
OSD-R
36
VERT 47
29 CVBSOUT1
SCL 51
39 XTAL2
SDA 52
40 XTAL1
H_OUT 48
B.OUT
30
VCC_IF
12
G.OUT 31
53 VCC_D
R.OUT 32
VCC1
45
17 VCC2
R_EXT/V_EXT 27
G_EXT/Y_EXT 26
B_EXT/U_EXT 25
11 FM_OUT
BLK_EXT
28
Y/CVBS_IN3 22
14 EXT_AUDIO_IN
CVBSIN2 20
55
AUDIO_OUT
INT_CVBS_OUT 13
J701
VIDEO OUT
1 19
VIDEO IN
3 20
21-Y IN
16
R IN 21-B IN
2
7
L IN 21-G IN
6 11
21-R IN
8 15
Q703
BUFFER
2
HEADPHONE JACK
5
J702
1
SPEAKER
SP351
V-DRIVE IC
IC401 TDA8174A
Vs 10 P.CON+25V
1
POWER OUTPUT
3
TRIGGER INPUT
I2C
Q402 Q401
H.DRIVE H.OUTPUT
J801
Q806
F
BLUE AMP
11
Q805
7
GREEN AMP 6
Q804
8
RED AMP
FRONT VIDEO
J703
3
1
2
FRONT AUDIO L
J704
3
1
2
SW TRANS
Q501
T501
5 POWER
D
9 SOUND+B
12 +B
P.CON+8V
15
AT+5V
16
P.CON+5V
DY
FB401
1
2 +B
3 P.CON+25V
F
S
HV
CRT
V801
E-2