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D33
Service Manual
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Aiwa D33 Service Manual

D33
English
SERVICE MANUAL
VIDEO MECHANISM
TYPE P2 LRN106A P4 LRN133A
S/M Code No. 09-99B-336-8N2
DATA
TABLE OF CONTENTS
REMOVING CASSETTE MANUALLY ............................. 3
DECK MECHANISM PARTS LOCATIONS
Top View............................................................................ 4
Bottom View ...................................................................... 4
DECK MECHANISM DISASSEMBLY
1. Drum Assembly........................................................... 5
2. Plate Assembly Top..................................................... 7
3. Holder Assembly CST................................................. 7
4. Guide CST .................................................................. 7
5. Bracket Side (L)/Bracket Assembly Door.................... 7
6. Arm Assembly F/L ....................................................... 7
7. Lever Assembly S/W................................................... 7
8. Arm Assembly Cleaner................................................ 8
9. Head F/E ..................................................................... 8
10. Base Assembly A/C Head ........................................... 8
11. Brake Assembly S ....................................................... 9
12. Brake Assembly T ....................................................... 9
DECK MECHANISM ADJUSTMENT
Tools and Fixtures for service ......................................... 16
1. Mechanism Alignment Position Check........................ 17
2. Preparation for Adjustment ......................................... 18
3. Checking Torque ......................................................... 18
4. Guide Roller Height Adjustment.................................. 19
4-1. Preliminary Adjustment .......................................... 19
4-2. Precise Adjustment ................................................ 19
5. Audio/Control (A/C) Head Adjustment......................... 20
5-1. Preliminary Adjustment .......................................... 20
5-2. Confirm that the Tape Path smoothly between
the Take-up Guide and Pinch Roller ..................... 21
5-3. Precise Adjustment (Azimuth Adjustment)............. 21
6. X-Value Adjustment..................................................... 21
7. Adjustment after Replacing Drum Assembly
(Video Heads) ............................................................. 22
8. Check the Tape Travel after Reassembling
13. Arm Assembly Tension................................................ 9
14. Reel S & Reel T .......................................................... 9
15. Support CST ............................................................. 10
16. Base Assembly P4 .................................................... 10
17. Opener Lid ................................................................ 10
18. Arm Assembly T/up ................................................... 10
19. Arm Assembly Pinch ................................................. 10
20. Belt Capstan/Motor Capstan ..................................... 11
21.Clutch Assembly D33 ................................................. 11
22. Lever F/R .................................................................. 11
23. Gear Assembly H-Up/D or Gear Assembly Up/D...... 11
24. Bracket Assembly Jog............................................... 12
25. Guide Rack F/L, Gear Rack F/L................................ 12
26. Brake Assembly Capstan.......................................... 12
27. Gear Drive/Gear Cam/Gear Connector .................... 13
28. Bracket Assembly L/D motor..................................... 13
29. Gear Sector............................................................... 14
Deck Mechanism......................................................... 22
8-1. Checking Audio and RF Locking Time
during Playback and after CUE or REV ................ 22
8-2. Check for Tape Curling or Jamming....................... 22
MAINTENANCE/INSPECTION PROCEDURE
1. Check before starting Repairs .................................... 23
2. Required Maintenance ................................................ 24
3. Scheduled Maintenance ............................................. 24
4. Supplies Required for Inspection and Maintenance ... 24
5. Maintenance Procedure.............................................. 24
5-1. Cleaning................................................................. 24
5-2. Greasing ................................................................ 25
MECHANISM TROUBLESHOOTING GUIDE
1. Deck Mechanism ........................................................ 26
2. Front Loading Mechanism .......................................... 29
MECHANISM EXPLODED VIEW 1/3 ............................. 32
MECHANISM MAIN PARTS LIST 1/3 ............................ 33
30. Base Tension/Plate Slider/Lever Tension .................. 14
31. Gear Assembly P3/Gear Assembly P2 ..................... 15
32. Base Assembly P3/Base Assembly P2 ..................... 15
33. Arm Assembly Idler Jog or Arm assembly Idler......... 15
MECHANISM EXPLODED VIEW 2/3 ............................. 34
MECHANISM MAIN PARTS LIST 2/3 ............................ 35
MECHANISM EXPLODED VIEW 3/3 ............................. 36
MECHANISM MAIN PARTS LIST 3/3 ............................ 37
REMOVING CASSETTE MANUALLY
Capstan belt
Fine rod, etc.
1. Remove the loading motor.
Fig. 1
3. Turn the capstan belt to take up slack tape.
Loading motor
Fig. 3
2. Turn the gear connect in the direction of the arrow with you finger to perform unsledding.
4. Turn the gear connect in the direction of the arrow with you finger to perform unloading.
Gear connect
Fig. 2
DECK MECHANISM PARTS LOCATIONS
Bracket Side 'L' 5
Plate Assembly 2 Top
Lever Assembly 8 S/W
4 Guide CST
3 Holder Assembly CST
Opener Door
6 Bracket
Assembly Door
7 Arm Assembly F/L
• Top View
• Bottom View
Motor Capstan 23
Gear Connector 33 Gear Cam 32
Brake Assembly 30 Capstan
Belt Capstan 22 Gear Drive 31 Guide Rack F/L 28
Gear Rack F/L 29 Clutch Assembly D33 24
Lever F/R 25
26 Gear Assembly H-Up/D
39 Gear Assembly P3
40 Gear Assembly P2
36 Base Tension
35 Gear Sector
38 Lever Tension
37 Plate Slider
27 Bracket Assembly
Jog
NOTE : When reassembly perform the
procedure in the reverse order.
1) When reassembling, confirm Mechanism and Mode Switch Alignment Position (Pefer to Page 17)
2) When disassembling, the Parts for Starting No. Should be removed first.
1 Drum Assembly 3 Screws , Cap FPC A-1 2 Plate Assembly Top Two Hooks A-2
2 3 Holder Assembly CST Chassis Hole A-2
4 Guide CST 2 Hooks A-2 2,3,4 5 Bracket Side (L) 1 Screw A-2 2,3,4 6 Bracket Assembly Door 1 Screw A-2 2,3,4,5,6 7 Arm Assembly F/L Chassis Hole A-2 2,3,4,5 8 Lever Assembly S/W Chassis Hole A-2
9 Arm Assembly Cleaner Chassis Embossing A-3
10 Head F/E 2 Hooks A-3
11 Base Assembly A/C Head 1 Screw A-3
12 Brake Assembly S Chassis Hole A-4 2,3 13 Brake Assembly T Chassis Hole A-4 2,3,12, 14 Arm Assembly T ension Chassis Hole A-4 2,3,12,14 15 Reel S Chassis Shaft A-4 2,3,13 16 Reel T Chassis Shaft A-4
17 Support CST Chassis Embossing A-5
18 Base Assembly P4 Chassis Embossing A-5
19 Opener Lid Chassis Embossing A-5 19 20 Arm Assembly T/Up Chassis Embossing A-5 19 21 Arm Assembly Pinch Chassis Shaft A-5
Starting No.
Pracedure
Part
Fixing Type
Fig-
ure
22 Belt Capstan A-6
22 23 Motor Capstan 3 Screws A-6
24 Clutch Assembly D33 1 Washer A-6 22,24 25 Lever F/R 1 Hook A-6 22,24 26 Gear Assembly H-Up/D 2 W ashers A-6
27 Bracket Assembly Jog 1 Screw A-7
28 Guide Rack F/L 1Screw A-7 28 29 Gear Rack F/L A-7 28, 29 30 Brake Assembly Capstan Chassis Shaft A-7 28, 29 31 Gear Drive 1 Washer A-8 28, 29, 30 32 Gear Cam Chassis Shaft A-8 28, 29, 30, 31
33 Gear Connector Chassis Shaft A-8
34 Bracket Assembly L/D Motor 3 Hooks A-8
35 Gear Sector 3 Washers A-9
36 BaseT ension 1 Screw A-9 22, 24, 25, 27
37 Plate Slider Chassis Shaft A-9 28, 29, 31, 35 36 22, 24, 25, 27 28, 29, 31, 35
38 Lever T ension Chassis Hole A-9 36 35 39 Gear Assembly P3 2 Hooks A-10 35, 39 40 Gear Assembly P2 2 Hooks A-10 35, 39, 40 41 Base Assembly P3 Chassis Hole A-10 35, 39, 40, 41
42 Base Assembly P2 Chassis Hole A-10 1, 2 43 Arm Assembly Idler Jog 1 Hook A-10
Starting No.
Pracedure
Part
Fixing Type
Fig-
ure
Head F/E 10
Drum Assembly 1
Support CST 17 Base Assembly P2 42
Brake Spring S Brake Assembly S 12
Arm Assembly 14 Tension
Band Assembly Tension
Reel S 15
Lever Assembly S/W 8
9 Arm Assembly Cleaner
34 Bracket Assembly
L/D Motor
11 Base Assembly
21 Arm Assembly Pinch
20 Arm Assembly T/Up
A/C Head
19 Opener Lid
18 Base Assembly P4 41 Base Assembly P3
43 Arm Assembly
ldler Jog
16 Reel T
13 Brake Assembly T
Brake Spring T
DECK MECHANISM DISASSEMBLY
Cap FPC
Holder FPC
(only for 4HD-Hi-Fi Models)
Drum Sub Assembly
Rotor
H1
(S1)
(S1)
(S1)
(S2)
(S3)
(S3)
(S2)
Drum Motor
Stator
or or
Optional Parts
Drum FPC
Holder FPC
(only for 2HD Models)
Holder FPC
(only for 4HD-Mono Models)
1. Drum Assembly (Fig. A-1-1)
1) Unhook the (H1) on the back side of the Chassis and separate the Cap FPC.
2) Remove three Screws (S1) and lift up the Drum Assembly.
3) Remove two Screws (S2) and Separate the Stator of Drum Motor.
4) Remove two Screws (S3) and Separate the Rotor of Drum Motor from the Drum Sub Assembly.
(1) When reassembling Cap FPC, two Holes of Drum FPC
are inserted to the two Bosses of Holder FPC correctly. (Refer to Fig. B-1)
Fig. A-1
NOTE
(Fig. A-1-1)
(Fig. A-1-1)
(Fig. B-1)
Holder FPC
Drum FPC
Cap FPC
Figure in the opposite direction
DECK MECHANISM DISASSEMBLY
H1
H3
(S1)
(S2)
(H5)
Gear Rack F/L Groove
Arm F/L
(A)
Lever Stopper (L)
Bracket Side (L)
Bracket
Assembly Door
Lever Stopper (R)
(B)
H2
H4
Lever Assembly S/W
Guide CST
Arm Assembly F/L
Holder Assembly CST
Plate Assembly Top
Groove
Fig. A-2
(Fig. A-2-1)
(Fig. A-2-2)
(Fig. A-2-6)
(Fig. A-2-7)
(Fig. A-2-5)
(Fig. A-2-3)
(Fig. A-2-4)
DECK MECHANISM DISASSEMBLY
2. Plate Assembly Top (Fig. A-2-1)
1) Unhook the (H1) and separate the Left Side.
2) Unhook the (H2) and lift up the Plate Assembly Top.
(1) When reassembling, confirm (A),(B) Part of the Plate
Assembly Top is inserted to the (L),(R) Grooves of the Bracket Side(L) and Bracket Assembly Door.
3. Holder Assembly CST (Fig.A-2-2)
1) Push the Lever Stopper(L),(R) in the direction of the arrows (A), (B), and move the Holder Assembly CST.
2) Push the Bracket Assembly Door to the right and lift up the Holder Assembly CSTalong the Guide Groove of the Bracket Assembly Door.
4. Guide CST (Fig.A-2-3)
1) Push two Hooks(H3),(H4) in the direction of the arrow and separate the left side.
2) Unhook (H5),(H6) as above No.1) and disassemble the Guide CST in the direction of the arrow.
5. Bracket Side(L) (Fig. A-2-4)/ Bracket Assembly Door (Fig.A-2-5)
1) Remove the Screw (S1) and disassemble the Bracket Side(L) in the front.
2) Remove the Screw (S2) and disassemble the Bracket Assembly Door in the front.
6. Arm Assembly F/L (Fig. A-2-6)
1) Push the Arm Assembly F/L to the left and lift up it.
(1) When reassembling, confirm that the Gear(A) of the Arm
F/L and the Gear(B) of the Gear Rack F/L are assembled as below.
7. Lever Assembly S/W (Fig. A-2-7)
1) Hook the Spring Lever S/W on (H5).
2) Lift up the left side of the Lever S/W from the Groove(A) of the Chassis.
(1) Place the Spring Lever S/W of the above (No.1) as
original position.
NOTE
Plate Assembly Top
Bracket Side (L)
Bracket Assembly Door
Lever Stopper (L)
Lever Stopper (R)
Holder Assembly CST
(A)
(B)
Bracket Side (L)
Bracket Assembly Door
(H3)
(H4)
NOTE
Gear (B)
Gear (A)
NOTE
(H5)
Spring
Lever S/W
(H5)
Spring
Lever S/W
(H5)
(H5)
DECK MECHANISM DISASSEMBLY
Arm Assembly
Cleaner
Head F/E
Base Assembly A/C Head
(S1)
(A)
(H1)
Fig. A-3
8. Arm Assembly Cleaner(Fig. A-3-1)
1) Break away the (A) part shown above Fig. A-3-1 from the Embossing of the Chassis in the clockwise direction and lift up the Arm Assembly Cleaner.
9. Head F/E (Fig. A-3-2)
1) Unhook the two Hooks (H1) on the back side of the Chassis and lift up the Head F/E.
10. Base Assembly A/C Head (Fig. A-3-3)
1) Remove the Screw (S1) and lift up the Base Assembly A/C Head.
(Fig. A-3-1)
(Fig. A-3-3)
(Fig. A-3-2)
DECK MECHANISM DISASSEMBLY
Reel T
Reel S
Arm Assembly Tension
Spring T Brake
Brake Assembly T
Band
Assembly
Tension
Brake Assembly S
Spring S Brake
Spring Tension
B
(A)
(C)
Fig. A-4
11. Brake Assembly S (Fig. A-4-1)
1) Remove the Spring S Brake.
2) Hold the (A) part shown above Fig. A-4-1 and turn to the clockwise direction, and then lift up the Brake Assembly S.
(1) When reassembling, be careful not to change the Spring
with below No.12.(Refer to Fig. B-2).
12. Brake Assembly T (Fig. A-4-2)
1) Remove the Spring T Brake.
2) Hold the (B) part shown above Fig. A-4-2 and turn to the counterclockwise direction, and then lift up the Brake Assembly T.
(1) When reassembling, be careful not to change the Spring
with above No.11.(Refer to Fig. B-2).
13. Arm Assembly Tension (Fig. A-4-3)
1) Remove the Spring Tension.
2) Hold the (C) part shown above Fig. A-4-3 and turn to the clock­wise direction, and then lift up the Arm Assembly Tension.
(1) When reassembling, be careful not to change the Spring
with above No.11,12.(Refer to Fig. B-2).
14. Reel S (Fig. A-4-4) & Reel T (Fig. A-4-5)
1) Lift up the Reel S and Reel T.
(1) When reassembling, be careful not to change the Reel S
and Reel T each other.
(2) Confirm two Slide Washers under the Reel S and Reel T.
NOTE
Spring T Brake Spring S Brake Spring Tension
NOTE
(Difference for Springs)
Color (Black)
Three Holes
Reel S
Reel T
(Fig. B-2)
NOTE
NOTE
(Fig. A-4-1)
(Fig. A-4-5)
(Fig. A-4-3)
(Fig. A-4-4)
(Fig. A-4-2)
DECK MECHANISM DISASSEMBLY
Arm
Assembly
Pinch
Opener Lid
Base Assembly P4
Support CST
Arm Assembly T/up
(A)
(B)
(C)
(D)
Spring
Arm T/Up
Fig. A-5
10
15. Support CST (Fig. A-5-1)
1) Break away the (A) part shown above Fig. A-5-1 from the Embossing of the Chassis in the clockwise direction, and lift up the Support CST.
16. Base Assembly P4 (Fig. A-5-2)
1) Break away the (B) part shown above Fig. A-5-2 from the Embossing of the Chassis in the counterclockwise direc­tion and lift up the Base Assembly P4.
17. Opener Lid (Fig. A-5-3)
1) Hook the Spring Arm T/up on the Split digged under the Arm Assembly T/up.(Refer to Fig.A-5-4(D)).
2) Break away the (C) Part of the Opener Lid from the Embossing of the Chassis in the Clockwise direction and lift up the Opener Lid.
18. Arm Assembly T/up (Fig. A-5-4)
1) Confirm that the Spring Arm T/up is placed as above (No.17.1).
2) Lift up the Arm Assembly T/up.
(1) When reassembling, unhook the Spring Arm T/up Shown
above (No.17.1) to the original position.
19. Arm Assembly Pinch (Fig. A-5-5)
1) Lift up the Arm Assembly Pinch.
NOTE
Opener Lid
Spring Arm T/up
Arm Assembly T/up
(Fig. A-5-3)
(Fig. A-5-4)
(Fig. A-5-1)
(Fig. A-5-2)
(Fig. A-5-5)
DECK MECHANISM DISASSEMBLY
Belt Capstan
Motor Capstan
Clutch Assembly D33
Washer(W1)
Washer(W2)
Spring Up/D
Slide Washer
Gear Assembly H-Up/D or
Lever F/R
(S1)
Hook(H1)
(A)
(C)
(A')
(B')
(B)
Gear Assembly Up/D
(For Normal Models)(For Hi-Rewind Models)
Optional Parts
Fig. A-6
11
20. Belt Capstan (Fig. A-6-1)/ Motor Capstan (Fig. A-6-2)
1) Remove the Belt Capstan.
2) Remove three Screws(S1) on the back side of the
Chassis and lift up the Motor Capstan.
(1) When reassembling, Confirm the (A), (B) parts of Motor
Capstan is located to the (A'), (B') of the Chassis.
21. Clutch Assembly D33 (Fig. A-6-3)
1) Remove the Washer(W1) and lift up the Clutch Assembly
D33.
22. Lever F/R (Fig. A-6-4)
1) Unhook the (H1) shown above Fig. A-6-4 and lift up the
Lever F/R.
(1) When reassembling, move the (C) part of the Lever F/R up
and down, then confirm if it is returned to original position.
23. Gear Assembly H-Up/D or Gear Assembly Up/D (Fig. A-6-5)
1) Remove the Washer(W2) and lift up the Gear Assembly H-up/D.
2) Remove the Spring Up/D.
3) Remove the Slide Washer.
(1) Gear Assembly H-Up/D is for Hi-Rewind Models. (2) Gear Assembly Up/D is for Normal Models except Hi-Rewind
Models.
NOTE
NOTE
(Fig. A-6-1)
(Fig. A-6-2)
(Fig. A-6-3)
(Fig. A-6-5)
(Fig. A-6-4)
NOTE
DECK MECHANISM DISASSEMBLY
Bracket Assembly Jog
(S1)
Brake Assembly Capstan
Guide Rack F/L
Gear Rack F/L
(S2)
Hole (B)
Brake Assembly Capstan
Hole (A)
(H2)
(H1)
Spring Capstan
Gear Cam
Gear Cam
Hole (A)+(B)
Fig. A-7
12
24. Bracket Assembly Jog (Fig. A-7-1)
1) Remove the Screw(S1) and lift up the Bracket Assembly Jog.
25. Guide Rack F/L (Fig. A-7-2)/
Gear Rack F/L (Fig. A-7-3)
1) Remove the Screw(S2) and lift up the Guide Rack F/L.
2) Lift up the Gear Rack F/L.
26. Brake Assembly Capstan (Fig. A-7-4)
1) Hook the Spring Capstan on the Hook(H1).
2) Unhook the Hook(H2) and lift up the Brake Assembly Capstan.(Refer to Fig. to the right)
(1) When reassembling, confirm that the Hole(A) of the
Brake Assembly Capstan is aligned to the Hole(B) of the Gear Cam. (Refer to above Fig. A-7-4).
NOTE
Hook(H2)
Hook(H2)
(Fig. A-7-4)
(Fig. A-7-1)
(Fig. A-7-2)
(Fig. A-7-3)
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