28
28
HCD-GX25/RG220
5-3. BLOCK DIAGRAM — TUNER/TAPE/PANEL SECTION —
CAPSTAN/REEL
MOTOR DRIVE
Q618
PLUNGER DRIVE
(DECK-A)
Q616
M
M
TAPE MECHANISM
DECK BLOCK
(CAPSTAN/REEL)
(DECK-A)
(DECK-B)
96 I-LC72121 DI
97 O-LC72121/BU2099 CLK
9 O-LC72121 CE
74 I-TUNER TUNE
75 I-TUNER STEREO
2 I-BU1924 DI
29 I-BU1924 CLK
95 O-LC72121/M61529/BU2099 DO
G
TU901
TUNER UNIT
AM LOOP
FM ANT
AM ANT
L-CH
R-CH
R-CH
TUNER-L
TU-MUTE
DI
DI
CLK
BIAS OSC
L201
REC BIAS
SWITCH
Q228
+9V
BIAS OSC
Q223
ERASE
HRPE1
(REC/PB/ERASE)
(DECK-B)
HP1
(PB)
(DECK-A)
L-CH
R-CH
R-CH
R-CH
L-CH
R-CH
R-CH
22 I-STREAM-IN
23 I-VACS
21 I-SW ON/OFF SENSOR
BAND-PASS
FILTER
28 I-REMOCON-IN
REMOTE CONTROL
RECEIVER
RM601
FRONT PANEL KEY
81 I-VR-ENCODER-B
80 I-VR-ENCODER-A
ROTARY
ENCODER
VR601
LED DRIVER
Q602-604,607
BUFFER
Q609,610
FLD601
FLUORESCENT
INDICATOR TUBE
MUTING
Q219, 221
PLUNGER DRIVE
(DECK-B)
Q617
LED614
A-MODE
TAPE A STAT
TAPE B STAT
TAPE REEL A
TAPE REEL B
B-SOL
A-SOL
CAPM+
MECHA-VCC
SOL-A
SOL-B
A-HALF
B-HALF
A-PHOTE
B-PHOTE
B-MODE
REC (FWD)
REC (REW)
G1
I
G12
P1
I
P4
•
P5
I
P8
•
P9
I
P22
18
82
83
I-TAPE A STAT
I-TAPE B STAT
I-TAPE REEL A
I-TAPE REEL B
19
93
O-POWER LED
8
O-BU2099 LCK
79
I-TAPE AMS IN
92
O-TAPE SOL B
91
O-TAPE SOL A
88
O-MECHA VCC
42
I
45
•
47
I
50
•
52
I
65
30
I
41
VACS/STR
VACS/STR
E
VOLUME
I-KEY2
I
I-KEY0
24
I
26
O-STREAM 1 LED
SO
MCLK
LCK
LCK
X601
32.768kHz
13
12
XT2
XT1
7
O-M61529 CLK
16
15
RES601
8.64MHz
CF2
CF1
POWER
HP
F
(RG220:AEP,UK)
SYSTEM CONTROLLER
IC601 (2/2)
FM 75
Ω
COAXIAL
LED611
(STREAM1)
ANTENNA
34
32
BIN (L)
AIN (L)
28
27
EQOUT (L)
26
PB-OUT (L)
TAI (L) MUTE
DECK A/B SELECT SWITCH, REC/PB EQ AMP
IC201
REC-
OUT (L)
REC-IN (L)
21
EQ
24
DO
CLK
CE
TUNED
ST
RDS DATA
RDS INT
MULTI CONTROLLER
IC309
7 BIAS
15
14
6 REC
11 TUNER MUTE
MUTE-ON/OFF
REC MUTE-ON/OFF
9
10 REC MUTE
PB MUTE
8
A/B
13
A/B
REC ON/OFF
SWITCH
Q222, 225
3
DATA
4
CLOCK
5
LCK
18
SO
CLK
DI
13
LM-L (CD)
LM-F
12
LM-R (CD)
LM-R
TAPE-L
REC-L
SP-F
15
14
TM-L (CD)
TM-F
TM-R (CD)
TM-R
• SIGNAL PATH
: TUNER (FM/AM)
: TAPE PLAY (DECK-A)
: TAPE PLAY (DECK-B)
: REC
• R-ch is omitted due to same as L-ch.
LM-F
LM-R
TM-F
TM-R
DI
SO
CLK
MCLK
LCK
MECHA-VCC
SOL-A
SOL-B
16
SP RELAY
SP-F
O-GAME LED
O-TAPE LED
O-TUNER LED
O-CD LED
68
•
69
•
70
•
71
LED607
I
LED609,
LED612
AMS
Q210,211
EQ
Q212
AMP/POWER SUPPLY
SECTION
AMP/POWER SUPPLY
SECTION
AMP/POWER SUPPLY
SECTION
D
CD
SECTION
K
AMP/POWER SUPPLY
SECTION
H
AMP/POWER SUPPLY
SECTION
J
AMP/POWER SUPPLY
SECTION
85
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