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There are currently no product reviews.
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complete and unabridged very good quality
easy to download.
recieved in two days.
;
Awesome manual. Complete diagrams of all board assemblies as well as how to get to each part of the t.v. down to the individual screws and their locations. Get it.
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perfect copy, im very satisfied, i was need the diagram over the powersupply and
the copy was very sharp
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This is exactly the service manual I needed.
Complete with all schematics, partslists, PCB layouts and alignment instructions.
This manual covers both the T-4970 en T-488F Onkyo tuner.
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IF PRINTED CIRQUIT BOARD WIRING VIEW WAS ONE TONE LIGHTER, THEN 5 STAR RANK HAS TO BE MY CHOISE.
7-3. Printer Pin Arrangement Diagram
Connection RD terminal Pin No. 1 Pin No. 15 Connection Character selective magnet column No.1 13
(Not used)
2
16
Character selective 3 magnet column No.1 2 4
17
14
18
15
3 4
5 6
19 20
16 17
5 6
7 8
21 22
Ribbon shift magnet Electromagnet (+)
Notes: 1. Column numbers match the physical arrangement of the columns on the print wheels. 2. Column numbers are assigned from 1 to 18 from the frame motor side. 3. Pin numbers are assigned from 1 to 27 from the frame motor side. 4. The spark arrestor diode is connected as shown below.
7
9
M
23
Motor power supply (+) Detector power supply (+) Timing signal Detector power supply (�)
8
10
24
Electromagnet (+)
Driver
9
11
25 26
10
12
(Example of compatible diode: 1S2075K or equivalent)
11
13
27
Motor power supply (�)
12
14
Motor power ON/OFF
*1
0.2ms max.
Timing signal
*2 8.0ms min.
T0
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10 T11 T12
TS
T(0)
0.7ms max. 8 0.7ms max. 0.7ms max.
0.7ms max.
80.0ms min.
2.0ms min.
Character selective magnet No.n Ribbon shift magnet
(Print operation) (Normal paper feeding operation)
Typ. 285.7ms
Notes: 1. The signals in must be prepared by the user. 2. The pulse is indicated by a dot-dash line (*1) is generated for continuous printing. The next print cycle can start immediately after the leading edge of the timing signal Ts. 3. As shown by a dashed line (*2), the timing signal may go low at motor power-on or upon reception of a Print command. � 11 �
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