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6-4
2-4-2.
Normal Audio System Adjustment
• Make adjustment in the SP mode unless otherwise specified. Use
a normal VHS cassette for an adjustment tape.
• Set AUDIO MONITOR to normal.
1. ACE Head Adjustment
Refer to the VHS mechanical adjustment manual
(S
MECHANISM) (9-921-647-11).
2. E-E Output Level Check
[Adjustment purpose]
Confirm that the output level adjust the reference input is within the
specification.
Confirm that the output level adjust the reference input is within the
specification.
Mode
E-E
Signal
400 Hz, –7.5 dBs
Measurement point
CJ461 L/R
Measuring instrument
Audio level meter
Specified value
–7.5 ± 2 dBs
[Check Method]
1)
1)
Input signal of 400 Hz and –7.5 dBs to the CJ461 L/R.
2)
Check that the audio output level is –7.5 ± 2 dBs.
3. Recording Bias Check
[Adjustment purpose]
Confirm that the frequency characteristic is within the specification.
Confirm that the frequency characteristic is within the specification.
Mode
REC and PB (SP mode)
Signal
400 Hz, –27.5 dBs
7 kHz, –27.5 dBs
7 kHz, –27.5 dBs
Measurement point
Audio output terminal
Measuring instrument
Audio level meter
Specified value
0 ± 3 dB
Note:
Tape path adjustment must have been completed.
[Confirmation Method]
1)
1)
Supply a signal of 400 Hz, –27.5 dBs to both L and R channels
of Audio Line Input.
of Audio Line Input.
2)
Connect the audio level meter to the Audio Line Output.
3)
Adjust the attenuator so that the audio level meter will indicate
–27.5 dBs.
–27.5 dBs.
4)
Make recording in the SP mode.
5)
Set an audio line input signal to 7 kHz and make recording.
6)
Playback a recorded portion, and measure output levels at 400
Hz and 7 kHz.
Hz and 7 kHz.
7)
Confirm that the 7 kHz playback output level within a range of
the 400 Hz playback output level 0 ± 3 dB.
the 400 Hz playback output level 0 ± 3 dB.
1. AF Switching Position Adjustment
(MA-336 Board)
[Adjustment Purpose]
To adjust the link of the A-ch and B-ch of the tape playback outputs.
To make the unit compatible with other tapes and units. If this
specification is not satisfied, the link will appear on the screen and
the screen will be disrupted, etc.
To adjust the link of the A-ch and B-ch of the tape playback outputs.
To make the unit compatible with other tapes and units. If this
specification is not satisfied, the link will appear on the screen and
the screen will be disrupted, etc.
Mode
Playback
Signal
Alignment tape: SP color bar portion
Measurement point
CH1: Pin
3 of CN101
CH2: Pin
1 of CN101
Measuring instrument
Oscilloscope
Adjusting element
RV201
Specified value
Fig. 6-2-5
[Adjustment Method]
1)
1)
Playback the alignment tape.
2)
Short-circuit between pins
1 and 2 of CN210.
3)
Adjust RV201 to minimize a chipped portion. At this time,
confirm that a noisy sound is not heard.
confirm that a noisy sound is not heard.
Fig. 6-2-5
CH2
RF SWP
RF SWP
CH1
REC AFM
REC AFM
Should be minimized
RF signal dropout
NG
OK
2-5.
ADJUSTING PARTS LOCATION DIAGRAM
MA-336 BOARD
(CONDUCTOR SIDE)
(CONDUCTOR SIDE)
6-6E
CNJ801
VIDEO/AUDIO LINE
IN/OUT
CN101
RF/AF SWP
4
1
1
2
6
7
CN204
MTR 12 V
RV202
RF SWP
RV201
AF SWP
1
2
RF/AF
SWP
CN201
+12 V
1
2
14
15
1
2
12
13
CN206
+5 V
Q961
+9 V
+9 V
B
E
CN210
SLV-GA30/GA50/GA66/GA70K/GA77K/GF80/GF90K/GF99K/P66/PH99
SECTION 7
REPAIR PARTS LIST
7-1. EXPLODED VIEWS
NOTE:
•
-XX, -X mean standardized parts, so they may
have some differences from the original one.
have some differences from the original one.
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
•
The mechanical parts with no reference number
in the exploded views are not supplied.
in the exploded views are not supplied.
The components identified by mark
!
or
dotted line with mark
!
are critical for safety.
Replace only with part number specified.
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
7-1-1. FRONT PANEL AND UPPER CASE SECTION
24
25
10
10
12
11
16
16
9
20
16
7
8
23
22
13
17
18
14
15
21
3
2
1
4
5
6
16
19
not supplied
not supplied
7-1
7-2
1
X-3949-068-1 FRONT PANEL, ASSY (GF99K)
1
X-3949-069-1 PANEL ASSY, FRONT (GF90K:PS)
1
X-3949-070-1 PANEL ASSY, FRONT (GF80)
1
X-3949-072-1 PANEL ASSY FRONT (GA66)
1
X-3949-073-1 FRONT PANEL, ASSY (GA70K)
1
X-3949-076-1 PANEL ASSY, FRONT (GA30:PS)
1
X-3949-077-1 PANEL ASSY, FRONT (GA30:ME,SG)
1
X-3949-078-1 PANEL ASSY FRONT (GA77K:PS)
1
X-3949-081-1 PANEL ASSY FRONT (GA50)
1
X-3949-084-1 PANEL ASSY FRONT (GA77K:PL)
1
X-3949-188-1 PANEL ASSY, FRONT (GA77K:TK)
1
X-3949-189-1 FRONT PANEL, ASSY (GF99K:TK)
1
X-3949-192-1 FRONT PANEL, ASSY (GA30:TK)
1
X-3949-193-1 FRONT PANEL, ASSY (GA50:TK)
1
X-3949-194-1 FRONT PANEL, ASSY (GA70K:TK)
1
X-3949-195-1 FRONT PANEL, ASSY (GF80:TK)
1
X-3949-196-1 FRONT PANEL, ASSY (GF90K:TK)
2
X-3949-088-1 BUTTON ASSY, FUNCTION
(GA70K/GA77K/GF80/GF90K/GF99K/PH99)
2
X-3946-598-1 BUTTON ASSY, FUNCTION
(GA30/GA50/GA66/P66)
3
3-987-176-21 RING,BUTTON
(GA70K/GA77K/GF80/GF90K/GF99K/PH99)
4
3-051-651-01 PLATE, FROSTED(GA66/GF80/GF99K/PH99)
4
3-051-651-11 PLATE, FROSTED
(GA50/GA70K/GA77K:PS/P66)
4
3-051-651-21 PLATE, FROSTED(GA30/GF90K)
4
3-051-651-41 PLATE, FROSTED(GA77K:PL)
5
3-943-995-01 EMBLEM (NO.5), SONY
6
3-051-653-01 LENS,POWER
7
3-953-432-01 SPRING (GE), FL
* 8
A-6794-581-A FR-140 BOARD, COMPLETE
(GA30:ME,PS,SG/GA50:ME,PS,SG/GA66/GA70K:PS/
GA77K:PS/GF80:PS/GF90K:PS/GF99K:ME,PS)
* 8
A-6794-591-A FR-140 BOARD, COMPLETE
(GA77K:PL/GF99K:PL)
* 8
A-6794-602-A FR-140 BOARD, COMPLETE
(GA30:TK/GA50:TK/GA70K:TK/GA77K:TK/
GF80:TK/GF9OK:TK/GF99K:TK)
* 9
A-6794-584-A MJ-91 BOARD, COMPLETE
(GA70K:PS/GA77K:PS,PL/GF90K:PS/GF99K:ME,PS,PL)
* 9
A-6794-605-A MJ-91 BOARD, COMPLETE
( GA70K:TK/GA77K:TK/GF90K:TK/GF99K:TK)
10
3-710-901-01 SCREW, TAPPING
(GA70K/GA77K/GF80/GF90K/GF99K/PH99)
10
3-710-901-11 SCREW, TAPPING(GA30/GA50/GA66/P66)
11
3-053-078-11 CASE, UPPER (GA30/GA50/GA66/P66)
11
3-053-078-31 CASE, UPPER
(GA70K/GA77K/GF80/GF90K/GF99K/PH99)
! 12
1-777-851-41 CORD, POWER
* 13
A-6794-583-A FR-142 BOARD, COMPLETE(GF99K:ME,PS)
* 13
A-6794-587-A FR-142 BOARD, COMPLETE(GF90K:PS)
* 13
A-6794-589-A FR-142 BOARD, COMPLETE(GA77K:PL)
* 13
A-6794-590-A FR-142 BOARD, COMPLETE(GF99K:PL)
* 13
A-6794-592-A FR-142 BOARD, COMPLETE(GF80:PS/PH99)
* 13
A-6794-593-A FR-142 BOARD, COMPLETE(GA77K:PS)
* 13
A-6794-599-A FR-142 BOARD, COMPLETE(GA66)
* 13
A-6794-601-A FR-142 BOARD, COMPLETE(GA70K)
* 13
A-6794-604-A FR-142 BOARD, COMPLETE(GF99K:TK)
* 13
A-6794-610-A FR-142 BOARD, COMPLETE(GF90:TK)
* 13
A-6794-612-A FR-142 BOARD, COMPLETE(GA50:PS)
* 13
A-6794-613-A FR-142 BOARD, COMPLETE(GA50:ME,SG)
* 13
A-6794-614-A FR-142 BOARD, COMPLETE(GF80:TK)
* 13
A-6794-616-A FR-142 BOARD, COMPLETE(GA30:PS)
* 13
A-6794-617-A FR-142 BOARD, COMPLETE(GA30:ME,SG)
* 13
A-6794-618-A FR-142 BOARD, COMPLETE(GA77K:TK)
* 13
A-6794-619-A FR-142 BOARD, COMPLETE(GA70K:TK)
* 13
A-6794-621-A FR-142 BOARD, COMPLETE(GA30:TK)
* 13
A-6794-637-A FR-142 BOARD, COMPLETE(GF90K:MJ)
* 13
A-6794-646-A FR-142 BOARD, COMPLETE(GA50:TK)
* 13
A-6794-656-A FR-142 BOARD, COMPLETE(P66)
* 14
A-6794-582-A FR-141 BOARD, COMPLETE
(EXCEPT GA30/GA50:TK/GA70K:TK/GA77K:TK/
GF80:TK/GF90K:TK/GF99K:TK)
* 14
A-6794-603-A FR-141 BOARD, COMPLETE
(GA50:TK/GA70K:TK/GA77K:TK/GF80:TK/
GF90K:TK/GF99K:TK)
* 14
A-6794-622-A FR-141 BOARD, COMPLETE(GA30:TK)
* 14
A-6794-615-A FR-141 BOARD, COMPLETE(GA30:ME,PS,SG)
* 15
A-6794-585-A JK-166 BOARD, COMPLETE
(GA66/GA77K:PL,PS/GF99K:ME,PS,SG)
* 15
A-6794-588-A JK-166 BOARD, COMPLETE
(GF80/GF90K:PS/PH99)
* 15
A-6794-606-A JK-166 BOARD, COMPLETE
(GA77K:TK/GF99K:TK)
* 15
A-6794-611-A JK-166 BOARD, COMPLETE
(GF80:TK/GF90K:TK)
16
4-921-277-41 SCREW (B2.6X8), TAPPING, BIND
17
3-051-664-01 WHEEL, ROTARY
(GA66/GA70K:PS/GA77K:PL,PS/GF90K:PS/GF99K:ME,PL,PS)
17
3-051-664-11 WHEEL, ROTARY
(GA30:ME,PS,SG/GA50:ME,PS,SG)
17
3-051-664-21 WHEEL, ROTARY
(GA70K:TK/GA77K:TK/GF80:TK/GF90K:TK/GF99K:TK)
17
3-051-664-31 WHEEL, ROTARY(GA30:TK/GA50:TK)
18
3-051-663-01 KNOB, ROTARY
(GA66/GA70K:PS/GA77K:PL,PS/GF90K:PS/
GF99K:ME,PL,PS)
18
3-051-663-21 KNOB, ROTARY
(GA70K:TK/GA77K:TK/GF9OK:TK/GF99K:TK)
19
3-051-662-01 KNOB, SLIDE
(GA66/GA70K:PS/GA77K:PL,PS/GF90K:PS/
GF99K:ME,PL,PS)
19
3-051-662-11 KNOB, SLIDE
(GA30:ME,PS,SG/GA50:ME,PS,SG)
19
3-051-662-21 KNOB, SLIDE
(GA70K:TK/GA77K:TK/GF80:TK/GF90K:TK/GF99K:TK)
19
3-051-662-31 KNOB, SLIDE(GA30:TK/GA50:TK)
20
3-970-608-21 SUMITITE (B3), +BV
21
1-790-118-11 CABLE, FLAT (FJK-1)
(GA66/GA70K/GA77K/GF80/GF90K/GF99K/PH99)
22
1-790-119-11 CABLE, FLAT (FFR-6)
23
1-790-120-11 CABLE, FLAT (FFR-7)
24
1-418-060-11 COMMANDER, STANDARD (RMT-V254)
(EXCEPT GA30)
24
1-418-060-21 COMMANDER, STANDARD(RMT-V254A)(GA30)
25
3-709-269-01 LID, BATTERY CASE
(FOR REMOTE COMMANDER)
Note :
The components identified by mark
!
or dotted
line with mark
!
are critical for safety.
Replace only with part number specified.
•
Abbreviation
SG: Gulf Model
EE: East European Model
PS: Pan Asia Model
PL: Philippine Model
TK: Thai Model
SG: Gulf Model
EE: East European Model
PS: Pan Asia Model
PL: Philippine Model
TK: Thai Model
7-1-2. CHASSIS SECTION
54
56
57
54
54
54
55
51
52
53
#1
#1
#1
not supplied
not supplied
#1
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
* 51
3-959-383-01 BASE (R), MD
* 52
A-6794-586-A SR-35 BOARD, COMPLETE
(GA77K:PS,PL/GF99K:PS)
* 52
A-6794-600-A SR-35 BOARD, COMPLETE(GA66)
* 52
A-6794-607-A SR-35 BOARD, COMPLETE
(GA77K:TK/GF99K:TK)
* 53
A-6791-702-A MA-336 BOARD, COMPLETE(GF99K:ME,PS)
* 53
A-6791-703-A MA-336 BOARD, COMPLETE(GF90K:PS)
* 53
A-6791-704-A MA-336 BOARD, COMPLETE(GF80:PS/PH99)
* 53
A-6791-705-A MA-336 BOARD, COMPLETE(GA77K:PL)
* 53
A-6791-706-A MA-336 BOARD, COMPLETE(GF99K:PL)
* 53
A-6791-707-A MA-336 BOARD, COMPLETE(GA77K:PS)
* 53
A-6791-710-A MA-336 BOARD, COMPLETE(GA66)
* 53
A-6791-711-A MA-336 BOARD, COMPLETE(GA70K)
* 53
A-6791-712-A MA-336 BOARD, COMPLETE(GF99K:TK)
* 53
A-6791-715-A MA-336 BOARD, COMPLETE(GF90K:TK)
* 53
A-6791-716-A MA-336 BOARD, COMPLETE(GF80:TK)
* 53
A-6791-717-A MA-336 BOARD, COMPLETE(GA50:PS)
* 53
A-6791-718-A MA-336 BOARD, COMPLETE(GA50:ME,SG)
* 53
A-6791-719-A MA-336 BOARD, COMPLETE(GA30:PS)
* 53
A-6791-720-A MA-336 BOARD, COMPLETE(GA30:ME,SG)
* 53
A-6791-721-A MA-336 BOARD, COMPLETE(GA77K:TK)
* 53
A-6791-722-A MA-336 BOARD, COMPLETE(GA70K:TK)
* 53
A-6791-724-A MA-336 BOARD, COMPLETE(GA30:TK)
* 53
A-6791-729-A MA-336 BOARD, COMPLETE(GA50:TK)
* 53
A-6791-744-A MA-336 BOARD, COMPLETE(P66)
54
3-970-608-21 SUMITITE (B3), +BV
55
3-052-070-01 PANEL (M) REAR
(GA50:ME,PS,SG/GA66/GA70K:PS/GA77K:PS/
GF80:PS/GF90K:PS/GF99K:ME,PS/P66/PH99)
55
3-052-070-21 PANEL (M) REAR(GA30:ME,PS,SG)
55
3-052-070-31 PANEL (M) REAR(GA77K:PL/GF99K:PL)
55
3-052-070-51 PANEL (M) REAR
(GA77K:TK/GF80:TK/GF90K:TK/GF99K:TK)
55
3-052-070-61 PANEL (M) REAR(GA50:TK/GA70K:TK)
55
3-052-070-71 PANEL (M) REAR(GA30:TK)
56
1-790-117-11 CABLE, FLAT (FDM-5)
57
3-987-560-02 PLATE, TOP, FL
7-1-3. MECHANISM DECK SECTION-1
701
702
703
704
705
723
722
720
721
706
725
724
707
710
712
711
713
714
715
716
717
719
718
709
708
701
#701
not
supplied
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
701
3-977-509-01 WASHER, THRUST
702
3-977-507-01 TABLE, REEL (S)
703
3-977-508-01 TABLE, REEL (T)
704
1-500-144-11 HEAD, FE
705
3-977-495-01 SHAFT TG2
706
3-977-494-01 HOLDER, FEH
707
A-6759-619-B FLCOMPLETE ASSY
708
3-977-535-01 PLATE, LUMINOUS(END SENSOR)
709
3-977-536-01 PLATE, LUMINOUS(TOP SENSOR)
710
3-970-471-01 SPRING (DECK OPEN), TORSION
711
A-6759-615-A PRESS BLOCK ASSY, PINCH
712
3-958-455-01 SPRING (PINCH), TENSION
713
3-977-447-01 GEAR, ELEVATOR
714
3-977-514-01 OPENER, LID
715
3-977-441-01 GEAR, PINCH PRESSING
716
3-977-445-01 GEAR, TG8 ARM DRIVING
717
3-977-465-01 SPRING,EXTENSION(RVS BRAKE)
718
X-3947-582-1 ARMASSY, RVS BRAKE
719
3-977-446-01 GEAR, TG8 ARM
720
X-3947-590-1 TG8ASSY
721
A-6759-620-A HEAD BLOCK ASSY, ACE (TDK)
722
3-974-556-01 +HEXA TT 2.6X9 (TAPER)
723
3-979-508-01 SCREW +HEXA TP SW 3X8
724
X-3947-568-1 TC(N17S) ASSY
725
3-979-112-01 SCREW SW(+)BVTP 3X10
7-3
7-4
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