Wiring Diagram Of The Printed Wiring Board - Hitachi RAC-18SX8 Service Manual

WIRING DIAGRAM OF THE PRINTED WIRING BOARD

[Remote controller] RAR-3R5
1 2
A
JSW switch table
Model JSW1 JSW2
-1 × ×
-2 ○ ×
-3 ○ ○
-4 × ○
S E G 13 S E G 14
S E G 15
S E G 12
S E G 11 S E G 16
S E G 10 S E G 17
S E G 9 S E G 18
B
S E G 8 S E G 19
S E G 7 S E G 20
S E G 6 S E G 21
LCD1
S E G 5 S E G 22
S E G 23
S E G 4
S E G 3 (front side) S E G 24
S E G 2 S E G 25
S E G 26
S E G 1
S E G 27
S E G 0
COM3 S E G 28
COM2 S E G 29
COM1 S E G 30
COM0 S E G 31
C
＋
＋
−
D −
Resistors Resistors Capacitors
Capacity, withstand voltage
E
Code Specification Code Specification Code
characteristics
R1 3.3 Ω J SW 1 0Ω C2 1 μF
J SW 2
R2 2.3 Ω 0Ω
C4 22pF
R3 1.2k Ω
Transistors
C5 18pF
R4 Ω 2.2k
Code Specification
1 μF
R5 220 Ω C6
C7 1 μF
R6 1k Ω Q1 2SA 1235
0.1 μF
R7 10M Ω Q2 2SC 3443 C8
0.1 μF
R8 220k Ω C9
R9 100k Ω
R10 220k Ω
Switches
F
R11 220k Ω
Code Specification
220k Ω
R12
18 Ω
R13 SW 1 SW-175-3P
4.7k Ω SW 2 SSSS210810
R14
1 2
– 71 –
3 4 5
6 1 S E G 9 S E G 3 0 4 0 Ｒ ３
6 2 Ｐ Ｓ １ − Ｐ Ｓ ２ ０
S E G 8 S E G 3 1 3 9
TP2 Key switch part
6 3 3 8
S E G 7 P 2 0
Input
6 4 S E G 6 3 7
P 2 1
6 5
S E G 5 P 2 2 3 6
6 6
S E G 4 P 2 3 3 5
6 7 3 4
S E G 3 P 2 4
TP3
6 8 3 3
S E G 2 P 2 5
IC1
6 9 S E G 1 P 2 6 3 2
7 0
S E G 0 P 2 7 3 1
7 1 AX-53R 3 0
V C C V S S
7 2 2 9
V R E F X O U T
7 3
A V S S I X N 2 8
7 4
C O M 3 X C O U T 2 7
7 5 2 6
C O M 2 X I C N
7 6 2 5
C O M 1 R E S E T
7 7 C O M 0 P 4 0 2 4
7 8
V L 3 P 4 1 2 3
7 9 2 2
V L 2 P 4 2
8 0 2 1
V L 1 P 4 3
Table 3 Details of switch settings
Microcomputers ．
Input
Code Specification Open
Short-circuit
Port (impedance) Ｈ （ ０ Ｖ）
M38235G6-057HP#V0
50V IC1
P50(16-pin) Door open Door closed
Ｃ Ｈ Table 4 Details of model settings
Diodes
Ｃ Ｈ
Input
Open
Code Specification Short-circuit
Code
F
(HI-impedance)
Port （ ０ Ｖ）
F LD1 SIR-563ST3F
P67(1-pin) RAR-3L1 S1
F D1 EL-1L7
P66(2-pin) S2
RAR-3L1
F D2 ISS355
Table 5 Details of mounting as classified by model setting operation
Oscillators
Model
Code Specification Size Remark
Code Specification number
Unmounted
X1 4MHz S1 1 C
(HI-impedance)
CSF-30832.768kHz S2 1 C
X2
3 4 5
6 7
Key matrix
Table 1 When the lid is open
・ ・・ Ｐ ５０ ＝ Ｌ
Output
Ｐ２ ５ Ｐ２ ６ Ｐ２ ７ Ｐ４ １ Ｐ４ ２
Wireless
transmission
(P Ⅰ N3 3 ) (P Ⅰ N3 2 ) (P Ⅰ N3 1 ) (P Ⅰ N2 3 ) (P Ⅰ N2 2 )
Input
output
Ｐ２ １ Ｋ０ １ Ｋ０ ５ Ｋ０ ９ Ｋ１ ３ Ｋ１ ７
(P Ⅰ N3 7 ) START/STOP ――― ― ――― ― ――― ― TIME SET
Ｐ２ ２ Ｋ０ ２ Ｋ０ ６ Ｋ１ ０ Ｋ１ ４ Ｋ１ ８
MANUAL VERTICAL
(P Ⅰ N3 6 ) AS DESIRED RESERVE CANCEL
CLEANING VANE
Ｒ ５ Ｐ２ ３ Ｋ０ ３ Ｋ０ ７ Ｋ１ １ Ｋ１ ５ Ｋ１ ９
TIME
AIR LATERAL
(P Ⅰ N3 5 ) ON/OFF FORWARD BACKWARD
PURIFICATION VANE
Ｐ２ ４ Ｋ０ ４ Ｋ０ ８ Ｋ１ ２ Ｋ１ ６ Ｋ２ ０
OPERATION FUNCTION
Ｔ Ｐ １
FAN SPEED OFF TIMER ON TIMER
(P Ⅰ N3 4 )
SELECTOR SELECTOR
Table 2 When the lid is closed
・ ・・ Ｐ ５０ ＝ Ｈ
Output
Ｐ２ ５ Ｐ２ ６ Ｐ２ ７ Ｐ４ １ Ｐ４ ２
(P Ⅰ N3 3 ) (P Ⅰ N3 2 ) (P Ⅰ N3 1 ) (P Ⅰ N2 3 ) (P Ⅰ N2 2 )
Input
Ｐ２ １ Ｋ０ １ Ｋ０ ５ Ｋ０ ９ Ｋ１ ３ Ｋ１ ７
(P Ⅰ N3 7） START/STOP ――― ― ――― ― ――― ― ――― ―
Ｐ２ ２ Ｋ０ ２ Ｋ０ ６ Ｋ１ ０ Ｋ１ ４ Ｋ１ ８
Ｒ ７ (P Ⅰ N3 6） COOLING ――― ― HUMIDITY UP HUMIDITY DOWN SLEEP
Ｐ２ ３ Ｋ０ ３ Ｋ０ ７ Ｋ１ １ Ｋ１ ５ Ｋ１ ９
Ion mist
(P Ⅰ N35） DEHUMIDIFICATION ――― ― ――― ― ――― ―
Ｐ２ ４ Ｋ０ ４ Ｋ０ ８ Ｋ１ ２ Ｋ１ ６ Ｋ２ ０
ROOM ROOM
(P Ⅰ N34） HEATING ――― ― TEMP DOWN DRY COOL
TEMP UP
6 7
8
A
B
TIME
C
D
E
RAR-3R5
F
8
Address
Address selector
switch
Address
Switch lever
Do not operate by yourself.
Remote controller
backside