Hitachi 15LD2200 Service Manual page 14

SYMBOL
XTALIN
XTALOUT
VSSA1
VGUARD/SWIO
DECDIG
VP1
PH2LF
PH1LF
GND1
SECPLL
DECBG
EWD/AVL
(1)
VDRB
VDRA
VIFIN1
VIFIN2
VSC
IREF
GNDIF
SIFIN1/DVBIN1
(2)
SIFIN2/DVBIN2
(2)
AGCOUT
EHTO
AVL/SWO/SSIF/
REFO/REFIN
(2)(3)
AUDIOIN5
AUDIOIN5L
AUDIOIN5R
AUDOUTSL
AUDOUTSR
DECSDEM
QSSO/AMOUT/AUDEEM
(2)
GND2
PLLIF
SIFAGC/DVBAGC
(2)
DVBO/IFVO/FMRO
(2)
15" TFT TV Service Manual
AV STEREO
STEREO +AV
NO AUDIO
STEREO
DSP
10 10
11 11
12 12
13 13
14 14
15 15
16 16
17 17
18 18
19 19
20 20
21 21
22 22
23 23
24 24
25 25
26 26
27 27
28 28
29 29
30 30
31 31
32 32
33 33
- -
34 34
35 35
36 36
37 37
38 38
39 39
40 40
41 41
42 42
43 43
MONO DESCRIPTION
10 crystal oscillator input
11 crystal oscillator output
12 ground
13
V-guard input / I/O switch (e.g. 4 mA current
sinking capability for direct drive of LEDs)
14 decoupling digital supply
1 supply voltage TV-processor (+5 V)
st
15
16 phase-2 filter
17 phase-1 filter
18 ground 1 for TV-processor
19 SECAM PLL decoupling
20 bandgap decoupling
21 East-West drive output or AVL capacitor
22 vertical drive B output
23 vertical drive A output
24 IF input 1
25 IF input 2
26 vertical sawtooth capacitor
27 reference current input
28 ground connection for IF amplifier
29 SIF input 1 / DVB input 1
30 SIF input 2 / DVB input 2
31 tuner AGC output
32 EHT/overvoltage protection input
33 Automatic Volume Levelling / switch output /
sound IF input / subcarrier reference output /
external reference signal input for I signal mixer for
DVB operation
34 audio 5 input
-
audio-5 input (left signal)
- audio-5 input (right signal)
-
audio output for SCART/CINCH (left signal)
- audio output for SCART/CINCH (right signal)
38 decoupling sound demodulator
39
QSS intercarrier output / AM output / deemphasis
(front-end audio out)
40 ground 2 for TV processor
41 IF-PLL loop filter
AGC sound IF / internal-external AGC for DVB
42
applications
Digital Video Broadcast output / IF video output /
43
FM radio output
12