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HCD-GN880
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HCD-GN880
7-3. BLOCK DIAGRAM – TUNER/TAPE SECTION –
TAPE L-CH
TEST
CONNECTOR
CN510
R-CH
R
L
C
MAIN
SECTION
(Page 30)
TUNER L – CH
F
MAIN
SECTION
(Page 30)
D
MAIN
SECTION
(Page 30)
E
MAIN
SECTION
(Page 30)
PB
HEAD
DECK-A
DECK-B
TC BLOCK
75
BIAS OSC
Q112
A TRIG
DRIVE
R-CH
FM/AM TUNER UNIT
CN509
ANTENNA
ST-L
FM ANT
FM ANT
AM ANT
AM ANT
ST-R
ST-MUTE
STEREO
TUNED
ST-DOUT/MC-DIN
ST-DIN/MC-DOUT
ST-CLK
ST-CE
FM 75
Ω
COAXIAL
CAP M+
BTRGM+
ATRGM+
AHALF
BHALF
APLAY
BPLAY
B PHOTO OUT
A PHOTO OUT
REC(FWD)
REC(REV)
CAPM-CTRL
B-TRIG
A-TRIG
TC-RELAY
A-HALF
B-HALF
A-PLAY
B-PLAY
B PHOTO OUT
A PHOTO OUT
REC (FWD)
REC (REV)
REC-MUTE
TC-MUTE
REC MUTE
AM
A
B
ST-MUTE
STEREO
TUNED
ST-DIN
ST-DOUT
ST-CLK
ST-CE
BIAS
TRAP
SWITCH
DRIVE
Q107, 108
SWITCH
DRIVE
Q110, 111
76
78
79
80
32
63
58
REC BIAS
60
55
90
89
56
51
91
53
59
52
B TRIG
DRIVE
57
CAP MOTOR
DRIVE
54
88
87
86
82
85
83
84
PB OUT1
TAI1
R-CH
R-CH
Q166
Q154, 155
Q109
L – CH
R – CH
R-CH
C174, L104
TC +9V
REC/PB
HEAD
ERASE
HEAD
DECK A/B SELECT
PB/REC EQUALIZER AMP
IC101 (1/2)
Q113,114
T101
Q122, 123
Q118, 119
Q120,121
SYSTEM CONTROL
(CD/TAPE MECHANISM CONTROL)
IC401(2/4)
L – CH
R – CH
MUTE
Q103
MUTE
Q175
MUTE DRIVE
Q509, 510
MUTE DRIVE
Q514, 515
• R-ch is omitted due to same as L-ch.
• Signal path
K
: TUNER (FM/AM)
E
: PLAYBACK (DECK A)
d
: PLAYBACK (DECK B)
G
: RECORD