Icom IC-RX7 Service Manual Addendum page 9

Feb. 2010
SECTION 8. BOARD LAYOUTS
• 1st VCO UNIT
(TOP VIEW)
L18
Q4
L12
L10
Q3
L9
L7
L6 Q2
D2 C2
L3
• LOGIC UNIT
(TOP VIEW)
• 2nd VCO UNIT
(TOP VIEW)
C74
C77
C75
L21
L20
D10
R19
C1
R41
C23
D9 C33
R17
C2
C49 R34
R19
D1
C72 C4 R2
C5
R44
D8 R3
C6 R21
R4
R40
C9
C30
C10
L4 C7
Q1
C16
8
J1 (CHASSIS)
• MAIN UNIT
(TOP VIEW)
C2
C22
+3V
GND
OSC
VCO4
VCO3
VCO2
C168 VCO1
VCO3V
C167
C425
C441
J3
C52
C18
R16
Q3
C23
R238
R15
C12
R24
R4
C31
R5
L29
R3
D1
D2
R224
C3
R25
B6970D
C70
D29
R101
X1 C181
C187
R216
C435
1stLO C306
GND C291
PCK
PDATA
PSTB1 Q40
PS
J2
R214
GND
VP
C316
C292
X3
L25
C406
C139
SP1 (CHASSIS)