Board Layouts - Icom IC-RX7 Service Manual Addendum

SECTION 8.

BOARD LAYOUTS

• 1st VCO UNIT
(TOP VIEW)
L18
Q4
L12
R19
L10
D9
Q3
L9
L7 D8
Q2
L6
L4
D2 C2
L3 Q1
• LOGIC UNIT
(TOP VIEW)
8 - 1
• 2nd VCO UNIT
(TOP VIEW)
C74
C77
C75
L21
L20
D10
C1
R41
C23
C33
R17 C22
C2
C49 R34
R19
D1
C72 C4 R2
C5
R44
R3
C6 R21
R4
R40
C9
C30
C10
C7
C16
J1 (CHASSIS)
• MAIN UNIT
(TOP VIEW)
R238
R4
R3
D1
D2
C2 C3
+3V
GND
OSC
VCO4
VCO3
VCO2
C168 VCO1
VCO3V
C167
C425
C441
C406
C139
J3
SP1 (CHASSIS)
C52
C18
R16
Q3
C23
R15
C12
R24
C31
R5
L29
R224
R25
B6970C
D29
C70
R101
X1
C181
C187
R216
C435
1stLO C306
GND C291
PCK
PDATA
PSTB1 Q40
PS
J2
GND R214
VP
C316
C292
X3
L25