– 9 –
– 10 –
• IC Block Diagrams
U1 BA8206
SECTION 4
EXPLODED VIEW
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
• Color Indication of Appearance Parts
Example :
KNOB, BALANCE (WHITE) ... (RED)
Parts Color Cabinet’s Color
NOTE:
• The mechanical parts with no reference
number in the exploded views are not supplied.
• Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
• Accessories and packing materials and
hardware (# mark) list are given in
the last of this parts list.
N
N
U80 MC34118DW
6
10
1
2
3
4
5
9
(including
12, JP50, T80)
7
7
8
12
T80
#1
#2
#3
#2
#1
JP50
X1
(not supplied)
#1
SP110
A
A
11
(including X1)
1
2
3
4
5
6
7
8
LOW
FREQ.
OSC
HIGH
FREQ.
OSC
POWER
SUPPLY
WITH
HYSTERESIS
AMP
VCC
RSL
LFI
LFO
OUT
HFI
HFO
GND
+
28
1
2
3
4
5
6
7
8
9
10
11
12
13
14
27
26
25
24
23
22
21
20
19
18
17
16
15
–
+
–
+
–
+
–
+
–
R
R
400
BIAS
BACK GROUND
NOISE MONITER
BACK GROUND
NOISE MONITER
ATT CONTROL
AGC
LEVEL DET
LEVEL DET
15mV
VR
VR
VR
VR
RX ATT
DP-DET
VCC
R
R
TX ATT
FILTER
GND
FO
FI
CO
Vcc
HTO(+)
HTO(–)
NTI
TXO
TXI
WCO
WCI
MUTE
VCL
CT
CPR
PU1
PLO1
TLO1
TU1
RX0
RX1
RLI2
RLO2
TLO2
TLI2
CPT
V8
U110 NJM2113M
5
VOUT1
V+
GND
VOUT2
–VIN
+VIN
VREF
CD
–
+
–
+
1
2
3
4
6
7
8
1
3-025-136-01 HANGER (HANDSET) (GRAY) ... (GRAY,BLUE)
1
3-025-136-11 HANGER (HANDSET) (CREAM)
2
3-025-132-01 CABINET (UPPER) (GRAY)
2
3-025-132-11 CABINET (UPPER) (CREAM)
2
3-025-132-21 CABINET (UPPER) (BLUE)
3
3-025-137-01 LEVER (HOOK) (GRAY) ... (GRAY,BLUE)
3
3-025-137-11 LEVER (HOOK) (CREAM)
4
3-025-134-01 BUTTON (12 KEY) (GRAY) ... (GRAY,BLUE)
4
3-025-134-11 BUTTON (12 KEY) (CREAM)
5
1-771-515-11 SWITCH, RUBBER KEY
6
1-765-574-11 CORD, CURL (CREAM)
6
1-775-798-31 CORD, CURL (BLUE)
6
1-775-798-41 CORD, CURL (GRAY)
7
3-025-139-01 FOOT, RUBBER
*
8
1-670-811-11 KEY BOARD
*
9
A-3672-566-A MAIN BOARD, COMPLETE (Canadian)
*
9
A-3672-571-A MAIN BOARD, COMPLETE (E)
10
X-3376-493-1 HANDSET ASSY (GRAY)
10
X-3376-494-1 HANDSET ASSY (CREAM)
10
X-3376-495-1 HANDSET ASSY (BLUE)
11
X-3376-481-1 CABINET (LOWER) ASSY (Canadian:GRAY)
11
X-3376-482-1 CABINET (LOWER) ASSY (E:GRAY)
11
X-3376-483-1 CABINET (LOWER) ASSY (E:CREAM)
11
X-3376-484-1 CABINET (LOWER) ASSY (E:BLUE)
12
3-025-138-01 CAP, MICROPHONE
JP50
1-785-426-11 JACK, MODULAR (4C) 4P (HANDSET)
SP110
1-529-151-11 SPEAKER (5.7cm)
T80
1-542-368-11 MICROPHONE, ELECTRET CONDENSER
