Sony LBT-G3000 Service Manual page 27

5-12. SCHEMATIC DIAGRAM—PANEL SECTION— e Refer to page 53 for IC Block Diagrams.
1
MAIN BOAR® (172) <
CN1
(Page 27)
MAIN BOAR® (2/2)
CN1206
(Page 28)
MAIN BOAR® (2/2)
CN1231
(Page 29)
[
2
DIGITAL GND
BIGITAL GND
RESET
+6V
MUTING
STEREO
TUNEB
0 (S1)
cL
BI (SO)
CE
BATA. 1
BATA.O
CQ. BUSY
DATA.3
CO. CLOCK
BATA.2
FUNCTION. C
FUNCTION.B
GND
FUNCTION.A
AU.BUS
+6V
FILAMENT
-7V
FILAMENT
~30V
+7V
HI-SPEED
L-PANEL. IN
GNO
R-PANEL. IN
3
[PANEL BOARD] | 2
FL601
, INDICATOR TUBE
4 5
FLUORESCENT
(4X) DEQXDD DODD DCD OOD EDENNIDL
(aS Se
'¢
INo.812
3P
Ho]
I.
===
Q1147, 1148
HI-SPEES
SWITCH
101106
GAIN SWITCH
CONTROL
Qi153
2802785
GAIN CONTROL
Q1104
2802785 2802785
GAIN CONTROL -
2802785
101102
MS21BAP
18
SO/IF COUNT NG
C601
CE/TIMER CLOCK C6 01
SYSTEM CONTROL
7FL ARIVE
—46—
uPD78042AGF-022-3B9
R616 22k
rar
19 20
$601 $602
BAND] [SHIFT
R622 R623
100 120
$617
HEE
HCD-G3000
TUNING/
PRESET
21 22 23 24
i
I
1
ere
$603 $604
a |
"a
$624 |
1
I
fs ©) FUNCTION A
- PAS FUNCTION B 8 a
(3) Avss
=
| ¢ DISPLAY. BATA.3 a
= R636 —s«RGB3T~—s—i«éRABBeOSOCRBBQCRGAO CRA R642 «R64 ROK RGA R647
BISPLAY. BATA. 1 ie a ss | be
100 54 120 120 150 180 ong em) gp01 278 gunn 2) sens 470 BD og BO sag th cua 2e 2 gpog dt OK cpg
E ge MEMORY [FAPE] [TUNER] (VIBE) [FLAT] [ANCE] [POPS] [ROCK] (CLASSIC)
RoObse REO7= R608 Se ( PRESET.)
:
4
(3)
EQUALIZER
i:
SN74HCOOAN L
SWITCH
B ae ee
91131-1134
a pe gg apes | | b+ ,
TUNER OUT
3 Soa SG Sei a eae Soe RN
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[ea ena? wen fee tte, tft Ll fem elf 30
Sa SS hee ee eee eee "3 1
fee Bee Ad |
fe ane ee =si3
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Lo al eee ee i ete os
be Le I = Ae ele I
cea ey a (0 et ee ee
Pe
ti | e Waveforms
SWITCH l
4.9%
4.2MHz onze
IC6 ol
£1197 1
REMOTE SENSOR
ia: 0.01
MOTOR
| |
[C1103 |
MOTOR DRIVE | 1
(VOLUME) |
|
RV1109
100K/100K
VOLUME
I
' 101101 11101
BUFFER 6, GMSZIBAP |
|
No. 201
| 3P
=> Foy] L-CH
Sees ee | GND (3) rover AMPLIFIER BOARB
| CN1 203
=> re} R-CH - Note:
I
RV1101 |
100K/100K | J
SURROUND ie
(Page 30, 32)
All capacitors are in «F unless otherwise noted. pF : uuF 50WV
or less are not indicated except for electrolytics and tantalums.
e All resistors are in Q and 1/4 W or less unless otherwise
specified.
A: internal component.
meme : B+ Line
snemms - B— Line
Voltage and waveforms are dc with respect to ground under
no-signal (detuned) conditions.
no mark: FM
e Voltages are taken with a VOM (Input Impedance 1O0MQ).
Voltage variations may be noted due to normal production
tolerances.
© Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal productior
tolerances. :
Circled numbers refer to waveforms.
Signal path.
@ © 8 @
>
: FM