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HCD-H881/H881D
@ WAVEFORMS
- BD Section —
G) 1C101 @pin 1.4Vp-p
WOITIVINIT
ANI
DOH
CASEIN
@) 1C101 @pin 20mVp-p 2ms/DIV
©
1C103 @pin 5.1Vp-p
137usec
a
2) IC101 @pin 8mVp-p
0.2ms/DIV
(4) 1C103 @pin 2.4Vp-p 7.5yusec
Pe
©
IC103 @pin 5.1Vp-p
232.7nsec
@
1C103 @pin 5.1Vp-p
472.7nsec
(Q) 1C104 © pin 3Vp-p 16.9344MHz
"
[
|
IC103 @pin 5.1Vp-p 23 usec
Note:
+ All capacitors are in y F unless otherwise noted. pF: y uw F
SOWV or less are not indicated except for electrolytics and
tantalums.
+ All resistors are in Q and Y%W or less unless otherwise
specified.
+ A: internal component.
. EE]
: panel designation.
Note:
The components identi-
fied by mark
Note :
Les composants identifiés par
une marque
sont critiques
pour la sécurité.
or
dot-
ted line with mark
are critical for safety.
Ne les remplacer que par une
Replace only with part
piéce portant le numéro spéci-
number specified.
fié.
.
: B+ Line
. C_]
: adjustment for repair.
+ Voltage and waveforms are dc with respect to ground under
no-signal ( detuned ) conditions.
+ Voltages are taken with a VOM ( Input impedance 10M Q ).
Voltage variations may be noted due to normal production
tolerances.
- Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
* Signal path.
c>
:FM
=
AM
+ Abbreviation
CND : Canadian
IT: Italian
G_
: German
EE
: East European
IA: Indonesia
EA: Saudi Arabia
HK
: Hong Kong
SP: Singapore
MY_ : Malaysia
AUS : Australian
JE: Tourist
AR: Argentine
E2
: Tuner sections SW
BAND do not exist.
E3
: Tuner sections SW
BAND exist.
MX:
Mexican
TH:
Thailand
TW : Taiwan
6-12. SCHEMATIC DIAGRAM — TCB SECTION —
1
TI
(US, CND, E2, AUS, AR, MX, TH MODEL)
Refer to page 74 for IC Block Diag}
B
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FM TUNING LEVEL
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US, CND MODEL
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MAIN BOAR®
(72)
CN250
(Page 38)
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