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23
23
HCD-XGR90AV
–TUNER/TAPE DECK SECTION –
PB-L
ST-L
RV391
REC-L
PB
HEAD
DECK-A
DECK-B
TC BLOCK
BIAS OSC
Q331,332
RIPPLE
FILTER
Q333
A TRIG
DRIVE
• SIGNAL PATH
: PLAYBACK (DECK A)
: PLAYBACK (DECK B)
: RECORD
: TUNER (FM/AM)
R-CH
ANTENNA
ST-LOUT
FM ANT
AM ANT
AM ANT
ST-ROUT
ST-MUTE
STEREO
TUNED
OUT(ST-DIN)
IN(ST-DOUT)
ST-CLK
ST-CE
75
Ω
A-SOL
A-HALF
B-HALF
A-MODE
B-MODE
B-PHOTO
A-PHOTO
REC(FWD)
REC(REW)
AM
• R-ch is omitted due to same as L-ch.
ST-MUTE
STEREO
TUNED
ST-DIN
ST-DOUT
ST-CLK
ST-CE
RV392
BIAS
TRAP
REC
BIAS(L)
B TRIG
DRIVE
CAP MOTOR
DRIVE
CAP MOTOR
SPEED CONT
SWITCH
Q321,322
R-CH
MUTE
Q344,345
AMS DETECT
Q341-343
R-CH
R-CH
R-CH
RV321
REC(L)
LEVEL
RV351
C322,L321
TC A+10
REC/PB SWITCH
IC321
REC/PB
HEAD
ERASE
HEAD
IC341
Q334,335
T331
Q383,384
Q381,382
Q385,386
TAPE SPEED
LOW
RV931
TAPE SPEED
HIGH
RV932
Q387,388
SYSTEM CONTROL
(CD MECHANISM CONTROL)
IC501(2/4)
+
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299