Pioneer VSA-805S Service-Handbuch - Seite 32
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8.4 SCHEMATIC
DIAGRAM
NOTE FOR SCHEMATIC DIAGRAM
(Type 2A)
1. When
ordering service parts, be sure to refer to
"PARTS
LIST of EXPLODED
VIEWS"
or "PCB
PARTS LIST".
2. Since these are basic circuits, some parts of them or the
values of some components may be changed for improve-
ment.
3. RESISTORS:
Unit. k:k2, MM, or 2 unless otherwise noted.
Rated power. 1/4W, 1/6W, 1/8W, 1/10W unless otherwise noted.
Tolerance.(F): + 1%, (G): £2%, (IK): + 10%, (M):+ 20% or +5%
unless otherwise noted.
4. CAPACITORS:
Unit : p:pF or LF unless otherwise noted.
Ratings : capacitor (4 F) /voltage (V) unless otherwise noted.
Rated voltage . 50V except for electrolytic capacitors.
6. COILS:
Unit : m:mH or .H unless otherwise noted.
6. VOLTAGE AND CURRENT:
LI
or «Vv:
OC vottage (V) at no input signal unless otherwise noted.
mA
or "mA:
DC current at no input signal unless otherwise noted.
7. OTHERS:
®Qor@ __ : Adjusting point.
@
<= =: Measurement point.
® The
4
mark
found
on
some
component
parts
Indicates
the im-
portance of the safety factor of the parts. Therefore,
when replacing,
be sure to use parts of identical designation.
8. SCH - CD ON THE SCHEMATIC DIAGRAM:
®@ SCH- D indicates the drawing number of the schematic diagram.
(SCH stands for schematic diagram.)
9. SWITCHES (Underline indicates switch position):
KO1 : AMP POWER
K02: TV POWER
KO3 : TV FUNC
K04 : POWER
KO5 : MODE CHECK
KO6:
11 A FQ+
KO7: <<
<4 TV VOL -
KO8 : >» FM/AM
KOS: >>
Pb TV VOL +
K10° MV FO -
K11 : VOLUME —
K12 : VOLUME +
K13: — (OISC/CH), DISP MODE, SIDE A
K14: + (DISC/CH), MPX, SIDE B
K1t5 ; VCR(ONETOUCH OPERATION)
K16 : CD(ONETOUCH OPERATION)
17: TV CONTROL
K18 . LD/DVD(ONETOUCH OPERATION)
K19 : TUNER(ONETOUCH OPERATION)
K20 : FUNCTION
K21' SURROUND
K22 : ALL OFF
K23 : DIRECT
K24: 1, — (CENTER)
K25 : 2, +(CENTER)
K26 : 3, — (REAR)
K27 : 4, + (REAR)
K28 : 5, TEST TONE
K29 : 6, CENTER MODE
K30 '7, DELAY TIME
K31 ; 8, SURR MODE
K32°9
K33
0, 10
K34. +10, CLASS
K35 : DISC, TV/VCR, DIREST A
K36 : TAPE 2
K38 * MUTING
K39 - RESET
K40
0.7.0 SETUP
K41
PRESET RECALL
VSA- 805S
@
R55
IC1
47
AZC7112
a er
C3
47/10
| 220
/10
C3, ICA :
TC74HCO7TAF
D6-D10, D13.
CL-230HR-CD
3
i
R40-R48 : 100k Q
R68
T2
D2: RLS-73
|
02
D4
0s
03-DS: 1$8181
R26 100k
D1, B19, D20:
FCR4.0MC3
R29 Ik
Q3, Q5, AG = 25C3265
Ox
AK
28A1037K
fr) 28
ass.
NK
2SA1037K
1k
R59
10k
REMOTE CONTROL
UNIT
SCH-8
[790
pas
BY
T0e1)
SCH-8
46