DOWNLOAD Sharp 32KF-84H (serv.man14) Service Manual ↓ Size: 242.84 KB | Pages: 16 in PDF or view online for FREE

Model
32KF-84H (serv.man14)
Pages
16
Size
242.84 KB
Type
PDF
Document
Service Manual
Brand
Device
TV / CTR / ICs additional information
File
32kf-84h-sm14.pdf
Date

Sharp 32KF-84H (serv.man14) Service Manual ▷ View online

51
32KF-84H
1
FEATURES
5 V supply voltage
Gain controlled wide-band Vision Intermediate
Frequency (VIF) amplifier, AC-coupled
Multistandard true synchronous demodulation with
active carrier regeneration: very linear demodulation,
good intermodulation figures, reduced harmonics, and
excellent pulse response
Gated phase detector for L and L-accent standard
Fully integrated VIF Voltage Controlled Oscillator
(VCO), alignment-free, frequencies switchable for all
negative and positive modulated standards via I
2
C-bus
Digital acquisition help, VIF frequencies of 33.4, 33.9,
38.0, 38.9, 45.75, and 58.75 MHz
4 MHz reference frequency input: signal from
Phase-Locked Loop (PLL) tuning system or operating
as crystal oscillator
VIF Automatic Gain Control (AGC) detector for gain
control, operating as peak sync detector for negative
modulated signals and as a peak white detector for
positive modulated signals
External AGC setting via pin OP1
Precise fully digital Automatic Frequency Control (AFC)
detector with 4-bit digital-to-analog converter, AFC bits
readable via I
2
C-bus
TakeOver Point (TOP) adjustable via I
2
C-bus or
alternatively with potentiometer
Fully integrated sound carrier trap for 4.5, 5.5, 6.0,
and 6.5 MHz, controlled by FM-PLL oscillator
Sound IF (SIF) input for single reference Quasi Split
Sound (QSS) mode, PLL controlled
SIF-AGC for gain controlled SIF amplifier, single
reference QSS mixer able to operate in high
performance single reference QSS mode and in
intercarrier mode, switchable via I
2
C-bus
AM demodulator without extra reference circuit
Alignment-free selective FM-PLL demodulator with high
linearity and low noise
I
2
C-bus control for all functions
I
2
C-bus transceiver with pin programmable Module
Address (MAD)
Four I
2
C-bus addresses via MAD.
2
GENERAL DESCRIPTION
The TDA9885 is an alignment-free multistandard
(PAL and NTSC) vision and sound IF signal PLL
demodulator for negative modulation only and
FM processing.
The TDA9886 is an alignment-free multistandard
(PAL, SECAM and NTSC) vision and sound IF signal PLL
demodulator for positive and negative modulation,
including sound AM and FM processing.
3
APPLICATIONS
TV, VTR, PC and STB applications.
4
ORDERING INFORMATION
TYPE NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
TDA9885T/V3
SO24
plastic small outline package; 24 leads; body width 7.5 mm
SOT137-1
TDA9885TS/V3
SSOP24
plastic shrink small outline package; 24 leads; body width 5.3 mm
SOT340-1
TDA9885HN/V3
HVQFN32
plastic, heatsink very thin quad flat package; no leads; 32 terminals;
body 5
×
5
×
0.85 mm
SOT617-1
TDA9886T/V3
SO24
plastic small outline package; 24 leads; body width 7.5 mm
SOT137-1
TDA9886TS/V3
SSOP24
plastic shrink small outline package; 24 leads; body width 5.3 mm
SOT340-1
ICs ADDITIONAL INFORMATION
TDA9886TS  (IC201)
Features
52
32KF-84H
handbook, full pagewidth
MHC108
DIGITAL VCO CONTROL
AFC DETECTOR
RC VCO
VIF-PLL
VIF-AGC
TUNER AGC
SUPPLY
SIF AGC
AUDIO PROCESSING
AND SWITCHES
NARROW-BAND
FM-PLL DEMODULATOR
SINGLE REFERENCE QSS MIXER
INTERCARRIER MIXER
AND AM DEMODULATOR
SOUND TRAPS
4.5 to 6.5 MHz
TAGC
C
VAGC(pos)
C
AGC(neg)
C
BL
VAGC
(1)
TOP
14 (15)
VPLL
19 (21)
9 (8)
16
15 (16)
21 (23)
4 (2)
10 (9)
11 (10)
12 (11)
18 (20)
20 (22)
2 (31)
1 (30)
(18) 17
(7) 8
(3) 5
(4) 6
external reference signal
or 4 MHz crystal
REF
AFC
AUD
CVBS
audio output
video output
: 2 V (p-p)
[1.1 V (p-p) without trap]
C
AF
SIOMAD
SDA
SCL
MAD
V
P
C
AGC
(6, 12, 13, 14, 17,
19, 25, 28, 29, 32)
13
n.c.
AGND
7 (5)
DGND
OUTPUT
PORTS
I
2
C-BUS TRANSCEIVER
22 (24)
3 (1)
OP1
OP2
FMPLL
DEEM
AFD
sound intercarrier output
and MAD select
FM-PLL
filter
VIF-PLL
filter
de-emphasis
network
VIF2
VIF1
24 (27)
23 (26)
SIF2
SIF1
TDA9885
TDA9886
Fig.1  Block diagram.
(1)
Not connected for TDA9885.
Pin numbers for TDA9885HN in parenthesis.
TDA9886TS  (IC201)
Block Diagram
53
32KF-84H
SYMBOL
PIN
DESCRIPTION
 TDA9886T
TDA9886TS
TDA9885T
TDA9885TS
TDA9885HN
VIF1
1
1
30
VIF differential input 1
VIF2
2
2
31
VIF differential input 2
n.c.
32
not connected
OP1
3
3
1
output port 1; open-collector
FMPLL
4
4
2
FM-PLL for loop filter
DEEM
5
5
3
de-emphasis output for capacitor
AFD
6
6
4
AF decoupling input for capacitor
DGND
7
7
5
digital ground
n.c.
6
not connected
AUD
8
8
7
audio output
TOP
9
9
8
tuner AGC TakeOver Point (TOP) for resistor adjustment
SDA
10
10
9
I
2
C-bus data input and output
SCL
11
11
10
I
2
C-bus clock input
SIOMAD
12
12
11
sound intercarrier output and MAD select with resistor
n.c.
12
not connected
n.c.
13
13
13
not connected
n.c.
14
not connected
TAGC
14
14
15
tuner AGC output
REF
15
15
16
4 MHz crystal or reference signal input
VAGC
16
VIF-AGC for capacitor
n.c.
16
17
not connected
CVBS
17
17
18
composite video output
n.c.
19
not connected
AGND
18
18
20
analog ground
VPLL
19
19
21
VIF-PLL for loop filter
V
P
20
20
22
supply voltage
AFC
21
21
23
AFC output
OP2
22
22
24
output port 2; open-collector
n.c.
25
not connected
SIF1
23
23
26
SIF differential input 1 and MAD select with resistor
SIF2
24
24
27
SIF differential input 2 and MAD select with resistor
n.c.
28
not connected
n.c.
29
not connected
handbook, halfpage
TDA9885TS
TDA9886TS
MHC110
VIF1
VIF2
OP1
FMPLL
DEEM
AFD
DGND
AUD
TOP
SDA
SCL
SIOMAD
SIF2
SIF1
OP2
AFC
VP
VPLL
AGND
CVBS
VAGC
(1)
REF
TAGC
n.c.
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
Fig.3  Pin configuration for SSOP24.
(1) Not connected for TDA9885TS.
TDA9886TS (IC201)
Pin Description
Pin Assignments
54
32KF-84H
MSP3410G (IC303)
Block Diagram
Sour
ce
 Sele
ct
Lo
ud-
SC
A
R
T
1
SC
A
R
T
2
SC
A
R
T
1
SC
A
R
T
2
SC
A
R
T
4
SC
A
R
T
3
MO
NO
De-
m
odu
la
to
r
Head
p
h
o
n
e
Headph
one
I
2
S
Sou
nd
P
ro
cessi
n
g
sp
eaker
So
u
n
d
Pr
o
c
essi
n
g
DAC
DAC
ADC
Lo
ud-
DA
C
DA
C
ADC
S
u
bw
oof
e
r
S
CAR
T
DS
P
 
Inp
ut
 
Sel
ect
Pr
e-
p
ro
cessi
n
g
S
CAR
Out
put
 
Sel
ect
Prescal
e
Prescal
e
I
2
S1
I
2
S2
So
und IF
1
So
und IF
2
sp
eaker
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  • DOWNLOAD Sharp 32KF-84H (serv.man14) Service Manual ↓ Size: 242.84 KB | Pages: 16 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp 32KF-84H (serv.man14) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp 32KF-84H (serv.man14) CTR. Information contained in Sharp 32KF-84H (serv.man14) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.