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TC-WA7ES/WR565/WR665S
@ WAVEFORMS — AUDIO SECTION —
CHi
FREQ=105kHz
CHi
P-P
=14,8V
iC81
CH1
FREQ=105kHz
CHI
P-P
=101V
T51 ©
Note:
* All capacitors are in wy F unless otherwise noted. pF: yw yw F
SOWV or less are not indicated except for electrolytics and
tantalums.
* All resistors are in Q and 14W or less unless otherwise
specified.
.
: B+ Line
'
> B-Line
. Cc]
: adjustment for repair.
* Voltage and waveforms are dc with respect to ground under
no-signal (detuned ) conditions.
no mark : STOP
¢
) : REC
+ Voltages are taken with a VOM ( Input impedance 10M © ).
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.
* Circled numbers refer to waveforms.
* Signal path.
>>
:PB(DECKA)
C>
:PB(DECKB)
[->>: REC ( DECK B)
* Abbreviation
CND:
Canadian
G
: German
AUS : Australian
CH_: Chinese
5-4. SCHEMATIC DIAGRAM (AUDIO SECTION)
1
2
A
[ AUDIO
BOARD
} (DECK
B)
M2
+r!
ee. (MY It
B
wovor Ng 7°
I
M1
SPEEA
|
capstan (MJ
te
&
MOTOR
iz 4
ai
HRPE101
RECORB/PLAYBACK/ERASE
|
ee
CNP32
won nna nn 5
(SU-7P)
02
aa
a
3
4
R72 22k
Q71
2SA812
RV71
10k
100p
]
1 TAPE
SPEED
(HIGH)
Q71
SPEEB
CONTROL
TAPE
SPEED
(NORMAL)
C28 0
C31 (2/2)
BPC457062
5
|
6
|
7
@53
BIAS
ON/OFF
C52
2200p
Q52
2501622
Q51, 52
10k
RS
BIAS
OSC
5.6
REC
BIAS
L=CH
C89
22 1éV
REC
BIAS
R-CH
8
9
10
11
12
[ LEAF SW BOARD
] (DECK
B)
_ CNPS1
SYSTEM
CONTROL
BOARD
CN803
(Page 22)
ROTATION
BET
WR565, WR665S
ain
eee
[-----
enero
CONNECTOR
BOARDS
|
|
CNP3Z0
|
(Page 22) (@)
| 2
i
Lo
ale
Ly
{
+7,5V
L CH (PB)
GND
i
M2
a (SE
oo
meee (MY [el
a
MOO ee es
REEL+
ina
REEL -
SYSTEM CONTROL
"
BOARD
+5V
CNP802
ore
(Page 22)
SPEED p44
-7.5V (MOTOR
M1
SPEEA |
CAPSTAN
} +5v qf |
MOTOR
avi
il
|
HP101
PLAYBACK
HEAD
BIAS
L CH (REC)
GND
R CH (REC)
RELAY
SYSTEM COMTROL
|
BOARD
CNP803
~2.6V
(Page 22)
TYPE
13
14
15
16
17
18
[ LEAF
SW
BOARD
](DECK
A)
STOP
DET
SYSTEM
CONTROL
|
eee!
70U
BOARD
HALF
CN802
HALF BET
ie
pees)
S, REEL
|
ee
|
Ic81
NJL514K-B
|
ROTATION DET
|
J
CNJ31
TAPE SPEED]
+7,5V
Cub:
L CH (PB)
Q71
GN (SIGNAL)
Sarge
RU
NORMAL/HIGH
H (PB)
sod
ae
SWITCH
ie
CONNECTOR
-7.5V
BOARD
SOE SPEED
REEL+
CNP8O1
(NORMAL)
| -
REEL-
(Page 22)
+5V
HIGH
~7.5 (MOTOR)
1031 (1/2)
#PC457062
PB LEVEL
L
RV11
1k
RV21
1k
PB LEVEL
R
1031 (2/2}
uPC 457062
PB AMP
= 99 =
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