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9.2 Tuner Board Circuit
Refer to sheet 11 of PWB-0579 circuit diagrams.
UT01(Tuner-FQ1216ME/MK3) is a multi-standard TV tuner for CCIR B/G, D/K, I,
L/L' system and the front-end has a built-in digitally (I
Output of Composite Video from QT01 #Emitter fed with Tuner UT01 is applied to
SAA7118 through P013#10 .
AF and SIF sound from UT01 (Tuner) are applied to Audio Processor I009
( MSP3410) #47、#50 through P013 #6、#8 . The specifications of Tuner are as follows :
Intermediate Frequencies
System
Picture Carrier
Colour
Sound 1
Sound 2
NICAM
Channel Coverage
BAND
Low Band
Mis Band
High Band
PINNING
SYMBOL
N.C.
N.C.
+5V
SCL
SDA
AS
-
-
N.C.
N.C.
nd
2
IF Sound
CVBS
+5V , IF
AF O/P (TV)
Ground
L
L'
38.90
33.95
34.47
38.38
32.40
40.40
-
-
33.05
39.80
Frequency (MHz)
48.25
160.00 to 442.00 MHz
442.00 to 863.25 MHz
PIN
DESCRIPTION
1
(AGC Monitor) Do not connect *
2
(Tuning Voltage Monitor ) Do not connect
3
Supply Voltage Vb , tuner section.
2
4
I
C – serial Clock
2
5
I
C – serial Data
2
6
I
C – Address Select
X
X
9
Not connected
10
Not connected
11
Second IF sound output
12
Composite Video Baseband Signal
13
Supply Voltage , IF section
14
AF sound output
Mounting Tags
-27-
2
C) PLL tuning system . The
B/G
D/K
38.90
38.90
34.47
34.47
33.40
32.40
33.16
-
33.05
33.05
to 160.00MHz
I
38.90
34.47
32.90
-
32.348
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