Disassembly Procedure; Lower Case Assembly; Hp Circuit Board; Wheel Assembly, Pb2 Circuit Board - Yamaha Portatone PSR 1000 Service Manual
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Also See for Portatone PSR 1000:
- Owner's manual (172 pages) ,
- Data list (52 pages) ,
- Quick steps (28 pages)
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PSR-1000/PSR-2000
DISASSEMBLY PROCEDURE
Caution: Be sure to attach the removed filament tape just as it was before removal.
1.
Lower Case Assembly
5 minutes)
1-1
Remove the sixteen (16) screws marked [240] and the two
(2) screws marked [250A]. The lower case assembly can
then be removed. (Fig. 1)
2.
HP Circuit Board
(Time required: About 10 minutes)
2-1
Remove the lower case assembly. (See procedure 1.)
2-2
Remove the three (3) screws marked [270A]. The HP
circuit board can then be removed. (Fig. 2)
3.
Wheel Assembly, PB2 Circuit Board (PSR-
1000), PB1 Circuit Board (PSR-2000)
(Time required: About 10 minutes)
3-1
Remove the lower case assembly. (See procedure 1.)
3-2
Remove the two (2) screws marked [510A]. The PB2 ( or
PB1) circuit board with the wheel assembly can then be
removed. (Fig. 2)
3-3
Remove the wheel assembly from the PB2 (or PB1)
circuit board. (Fig. 3)
Woofer R
[100A]
[270B]
Tweeter R
[250B]
Shield cover L
[30]:
Bind Head Tapping Screw-P 3.0x16 MFZN2BL (EP630220)
[50]:
Bind Head Tapping Screw-P 4.0x16 MFZN2Y (VM839600)
[100]: Bind Head Tapping Screw-P 4.0x10 MFZN2Y (EP640500)
[250B]: Bind Head Tapping Screw-P 3.0x25 MFZN2Y (VK228100)
* This figure shows the PSR-1000.
8
(Time required: About
Floppy disk drive assembly
[270C]
[270C]
[260A]
[260B]
INV
[260B]
[260B]
[270C]
[260B]
Keyboard assembly
[240]
Lower case assembly
[240]
[240]:
Bind Head Tapping Screw-P 3.0x12 MFZN2Y (EP600300)
[250A]: Bind Head Tapping Screw-P 3.0x25 MFZN2Y (VK228100)
4.
MOD Circuit Board (PSR-2000 only)
(Time required: About 10 minutes)
4-1
Remove the lower case assembly. (See procedure 1.)
4-2
Remove the two (2) screws marked [510B]. The MOD
circuit board with the wheel can then be removed. (Fig. 2)
4-3
Remove the wheel from the MOD circuit board. (Fig. 3)
[50]
Woofer L
[100A]
Tweeter L
[250B]
MKS5F
PB2
HP
[30]
[260]: Bind Head Tapping Screw-B 3.0x6 MFZN2Y (EP600130)
[270]: Bind Head Tapping Screw-P 3.0x8 MFZN2Y (EP600280)
[290]: Bind Head Tapping Screw-B 4.0x6 MFZN2BL (EP600370)
[340]: Flat Head Tapping Screw-B 3.0x8 MFZN2Y (EP600420)
[510]: Bind Head Tapping Screw-P 3.0x8 MFZN2Y (EP600280)
(Fig. 2)
[240]
[250A]
[240]
[240]
(Fig. 1)
[100B]
Woofer
* PSR-2000
[290]
[270B]
Tweeter
* PSR-2000
[340]
SW
Wheel assembly
[510A]
MOD
PB1
[510B]
Wheel
* PSR-2000
[270A]
[510A]
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