– 11 –
– 12 –
HCD-D60/GR7/GR7J/RX70
Note
• X : parts extracted from the component side.
• ¢ : internal component.
• Semiconductor
Location
Ref. No. Location
D21 G-2
D41 G-4
D42 H-5
D43 H-5
D1701 J-4
D1702 J-4
D1703 H-4
D1704 J-4
IC21 G-3
IC41 E-5
IC1701 I-3
IC1702 I-6
Q1 F-3
Q2 F-3
Q3 E-3
Q4 E-3
Q5 E-3
Q9 D-3
Q11 C-5
Q12 B-5
Q13 B-4
Q14 B-4
Q1701 I-3
Q1702 J-4
Q1703 J-4
PRINTED WIRING BOARD – TUNER Section – (East European, CIS Models)
• See page 36 on service manual for Ciecuit Boards Location.
!£ IC41 @£ (VCO)
4.8 Vp-p
2.2 ns
• Waveforms
!™ IC21 @¢ (XOUT)
4.8 Vp-p
222 ns
• IC Block Diagrams
IC1701 IR3R42 (East European, CIS models)
OSC
1/2
1/2
PHASE
WAVEFORM
SEP.
GATE
SAMPLE
& HOLD
BUFFER
REGULATOR
PHASE
COMPARATOR
PHASE
COMPARATOR 2
MUTE
TRIGGER
1
2 3
4
5 6 7 8 9
10
20 19 18 17 16 15 14 13 12
11
AMP
AMP
AMP
LAMP
VCO STOP
ST
LOUT
ROUT
LHC
RHC
POUT
IN
VCC
GND
VCO
LPF1A
LPF1B
DETIN
LPF2A
LPF2B
SUBIN
SUBOUT
MON
IC1702 MC14053BCP (East European, CIS models)
1
2
3
4
5
6
7
8
B1
B0
C.COM
CO
INH
VEE
VSS
VDD
B.COM
A.COM
A1
A0
A
B
C
C1
9
10
11
12
13
14
15
16
OPEN
OPEN
OPEN
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