Philips 14PV111/01 Service Manual page 16

Chroma Block Diagram
NOTE FOR WIRE CONNECTORS:
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
" " = SMD HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
K,L,O,P,S,T,W,X
IC901 (TELETEXT DECODER)
ADC/
DATA SLICER 11 CN901
20 BUFFER 7 Y-SW-OUT
SYNC SW Q904
19 BUFFER 2 SYNC
Q901
3 4 SDA
I 2 C I/F
2 3 SCL
CN902
27 6 OSD-BLK
TELETEXT 28 3 OSD-B
DECODER 29 4 OSD-G
30 2 OSD-R
X901
13.875
OSC/CLOCK 41
MHz
GENERATOR
42
OSC
TEXT CBA
(NO CONNECTION)
INT.MONITOR 1
I 2 C-OPEN
CN303 is used for SDA
adjustment at factory
SCL
FROM/TO I 2 C-OPEN
SERVO/SYSTEM
SCL
CONTROL BLOCK
SDA
JK751
SLOW-SW 8
RAPID-SW 16
OSD-B 7
OSD-G 11
OSD-R 15
IC201
(SYSTEM CONTROL/OSD)
FROM C-VIDEO
56 C-VIDEO TEXT-L
VIDEO
BLOCK
OSD-R
OSD-G
OSD-B
OSD-BLK
SLOW-SW-IN
RGB CONT
RAPID-SW-IN
WF18
V-SYNC
WF17
H-SYNC
1-7-19
TEST POINT INFORMATION
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
MAIN CBA
CN751
7
2
4
3
CN752
6
3
4
2
CN303
2
4
5
Q761
Q759
IC752 (SW)
5
4
3
2
15
1
12
14
13
SW CTL
9 10 11
Q756
82
64
63
62
60
30
22
29
59
58
REC-AUDIO SIGNAL
REC VIDEO SIGNAL
IC301 (VIDEO/AUDIO/CHROMA/DEFLECTION/IF)
40
1
10
SERIAL
11 I/F
INTELLIGENT
43
MONITORING
Q757
+5V
SYNC
SEPARATION
CHROMA
TRAP
Q760
+5V
LUMA
SIGNAL
PROCESS
CIRCUIT
V-SYNC H-SYNC
PROCESS PROCESS
CIRCUIT CIRCUIT
17
21
27
20
28
30
WF10
13
12 INV
PB VIDEO SIGNAL Mode : SP/REC
LINE/PB
34
36
TUNER
LINE/PB
TUNER
CLOCK
CHROMA
CONTROL 32
BPF
CIRCUIT
PAL SECAM
DECODER DECODER
BASE BAND
1H DELAY LINE
16
15
OSD MIX/RBG MATRIX/
BLANKING 14
WF11
6
7
31
1-7-20
Comparison Chart of
Models & Marks
Model Mark
14PV 111/07 H
14PV 112/07 I
14PV 415/07 J
14PV 203/07 K
14PV 460/07 L
14PV 111/01 M
14PV 415/01 N
14PV 203/01 O
14PV 460/01 P
14PV 111/58 Q
14PV 415/58 R
14PV 203/58 S
14PV 460/58 T
14PV 112/39 U
14PV 415/39 V
14PV 203/39 W
14PV 460/39 X
VIDEO-OUT1 FROM
VIDEO BLOCK
TU1-VIDEO
X301
4.43MHz
CL301A
2 BLUE
TO
3 GREEN CRT/H.V. BLOCK
CL301B
4 RED
CL302A
2 AFC
3 H-DRIVE FROM/TO
CRT/H.V. BLOCK
6 ACL
CL302B
4 V-RAMP-NF
7 V-DRIVE
T6310BLC