Sony STR-DE505 - Schematic Diagram - Display Section

STR-D350Z/D4502Z/DE405/DE505
e WAVEFORM ® IC BLOCK DIAGRAM — DISPLAY SECTION — Note :
1C202 BA6208 * All capacitors are in uy F unless otherwise noted. pF: yw uw F - Voltages are taken with a VOM ( Input impedance 10M Q ).
50WV or less are not indicated except for electrolytics and Voltage variations may be noted due to normal production
tantalums. tolerances.
+ All resistors are in Q and %W or less unless otherwise + Waveforms are taken with a oscilloscope.
specified. Voltage variations may be noted due to normal production
* A: internal component. tolerances.
7 : : * Circled numbers refer to waveforms.
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IC
BLOCK
DIAGRAMS
—
MAIN
SECTION
—
:
B+
Line
~/Sianeiigath
° [B-—] :B- Line
4.19MHz ; => :FM
1C251
NJM2279D
IC300
LV1011
*
Voltage
and
waveforms
are
dc
with
respect
to
ground
under
no-signal ( detuned ) conditions.
IC201 @ geen, (4S) © (3) eee
2
5
5
=
2
4
3)
rit av = = =
z Zz
= Lom}
3-4. SCHEMATIC DIAGRAM (DISPLAY SECTION)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
A SS Sf A Li TS tS |e __ eS tt
[DISPLAY
BOARD]
(TONE
BOARD
]
sebeBiOA ve 9287 NT
(¥) (BASS BOOST] =
[1203] C203 acre aoa Sie $238 Soe
(8)
L-HIx-0uT
SIRCS
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on
MEMORY
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(15)
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e
B
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236 R237
ec ee ae ee 4 15k ong 22k nd
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TUNING PRESET
MEMORY
io (4
pp — $10 co
KHz -S1) fr
ie] ic
MHz = -S12
PRESET | [TUNING -} | PRESET SHIFT FMZAM FM MODE} [BASS BOOST
TUNING —- TUNING +
RV422
1C301 LA2785 1C401 LC7822 aves 7
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a)
0 l
I
r
1
3.4
9231
BAIF4M
LEB @RIVE
VOLUME BOAR
E i CNP401
t
x
Ss ely
8233 8234 8235 2236 2237 x a
£NS201 VIseo] [TV7SB5] PROLOGIC) [HEATER] [HALL ' 3
RAS CLK IN I
ROS BATA IN $201 $202 $203 $204 i, $205
F sw (12V) a a: Ray
SW (RY) | 24 | : Hy ; BELAY TIME
ee ——— 5.BATR 7 SL_| 5, SUREGT ||_verrecr
oh PLL. BATA 1C201] rerio mre ion 22 a ie jess
8.cE (C7288) me BASS BOOST 8
SCE CVO ae +5V REAR
BRIAGE | 19 | VERSION LEVEL+
8. CLOCK 18 | PROTECT POWER SW oe
S. BATA BRIDGE SIRCS
abies [PHONO]
G PLL BATA IN | 16 | RESET vss [PHONG] I
§.CE (7822, 72130) 15 | AUTO-STOP STOP Alou ara
. euaeae $.CE (LV1010) STEREO-IN RBS. CLK. IN =:
& AUTO STOP | 13 | AVSS RBS. BATA. IN CENTER
z STEREO IN Ea SP-RY SYS. POWER ae
4 SP-RY Ea SURR-RY STANDBY
oe 2.
SURR-RY | 10 | POWER-RY w sr I
H POWER-RY Es BOWN Z 5 x:
SIGNAL re | z Z| TONER
IC. MUTE Ee o oe
F.MUTE Ea
TUNER MUTE sy
PROTECT IN | 4 | I
=x Sa Caee
I a et {1 i a! Pao 2
=a =
IC950 NJM2103D | (as ee ee 2 ee eee a
i
4.7 u . ee ee
0202
BAIF4M
u
Mw
u
“
R216
| J 9201, 202 22k
SYSTEM RESET
J 1
: :
I
CNS202
K
NB
|
4
|
S
i 5 3 [C202
(B) VOL. UP | 3 | 3
VOLUME
BOARS
VOL.80WN
|
2
|
5
VOLUME
MOTOR
Low Boost | 1 | = CONYROL |
02
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