Goldstar P 434 I User manual

1
GOLDSTAR P 434 I U-View Limited
Matrix
Item See Model Book
Safety Notes................................................................................................P934 I 6
Service Cables ............................................................................................P934 I 6
Mechanism Disassembly...........................................................................P934 I 6
Mechanism Adjustments ...........................................................................P934 I 6
Mechanism Troubleshooting Guides .......................................................P934 I 6
Deck Exploded Parts View ........................................................................P934 I 6
Electrical Adju tment
Electronic Test Equipment
Oscilloscope
Video Signal Generator
Level Meter
+ Driver
Test Tape (SP)
Recording Tape
Digital Multimeter
Monitor Scope
Power Supply
ABBREVIATIONS
SPEC: Specification
M.P: Measurement Point
A.P: Adjustment Point
1. Servo Circuit
1) PG Adjustment
Purpose:
For the phase dividing of the Video A,B heads
with 180 and the exact tracing of each track to
meet head switching point with VHS Spec.
Fig. 3-1
1-1) Record PG Adjustment
MODE: Record
SPEC: 416±50usec
M.P: TP302 (H.SW) JK701 Pin(1) (Video Out)
A.P: VR502
1-2) Playback PG Adjustment
MODE: Playback
SPEC: 6.5H±0.5H (41 6usec, 1 H=64usec)
M.P: TP302 (H.SW) JK701 pin (Video Out)
A.P: VR501
1-1) Record PG Adjustment
Procedure:
a. Set the VCR to AN mode.
b. Connect CH-1 terminal of oscilloscope to
TP302 (H.SW) and CH-2 terminal to video out
terminal (JK701 pin(1) of VCR.
c. Input the Video signal to Video Input Jack.
d. Record in PAL SP mode.
e. Trigger the complex Video signal of CH2 to
CH-1 (H.SW), and adjust VR502 so that the
distance from A(B) head selection point of H.SW
signal to the starting point of Vertical synchro-
nized signal is 416±50usec.
Reference:
1. Record PG Adjustment is proceed in the
Record mode and must be input video signal.
2. The deviation between A/B Head Adjustment
location should be within i-0.5H (32usec).
3. The deviation between the specification of
adjustment and the practical measurement
value should be within t-S0usec.
4. Oscilloscope and VCR set should be con-
nected with GND.
5. When the Power Assy of set is changed, you
should be readjust Record PG.
1-2) Playback PG Adjustment
Procedure
a. Playback a PAL SP test tape.
b. At this time, the ATR’ is lighting, after pressing
the A.TR (+) or A.TR(-) and adjust the X-
Value.
c. Connect CH-1 terminal of oscilloscope to
TP302(H.SW) and CH-2 terminal to Video Out
terminal (JK701 pin(1) of VCR.
d. Trigger the complex Video signal of CH2 to
CH-1 (H.SW), and adjust VR501 so that the
distance from A(B) head selection point of
H.SW signal to the starting point of Vertical
synchronized signal is 6.5H (416usec, 1H=
64usec).
e. The conversion of A/B Head SW signal uses
the Polarity Invert Knob of oscilloscope.
Reference:
1. ±PG adjustment is proceed in the state of
maximum RF level and locked servo system
(MTR Mode).
2. The deviation between A/B Head Adjustment
location should be within ±0.5H (32usec).
3. The deviation between the specification of
adjustment and the practical measurement
value should be within ±0.5H (32usec).
4. Oscilloscope and VCR set should be con-
nected with GND.
2. Audio Circuit
1) Record Bias Adjustment
MODE: Record
SPEC: 3.0mW±0.2mV RMS
M.P: W105(+) W106 (-)
A.P: VR401
Purpose:
This is adjusting the bias current to specification
in recording.
Procedure:
a. Connect (+) terminal of the Level Meter to
W105 (+).
b. Connect (-) terminal of the Level Meter to
W106 (-).
c. Confirm that the Oscillation Voltage is
3.0mV±0.2mV RMS.
d. At this time, adjust VR401 and make the
oscillation voltage fit to specification.
3.Tuner/IF Circuit
1) VCO (Voltage Controlled Oscillation)
Adjustment
MODE: PAL I (38.9MHz)
SPEC: DC 2.5±0.1V
M.P: P7M02 pin(5)(AFC CTL)
A.P: T750AFC
(Automatic Frequency Control) (VCO COIL)
Procedure:
a. Connect as shown in Fig. 3-2.
Fig. 3-2.
b. Input the PAL I 38.9MHz (Strength of input
electric field: 75±5dBu) signal Out Terminal of
TV RF Pattern GEN instrument.
c. Confirm that the video signal is Output by
connect oscilloscope to P7M01(2)PlN.
d. Adjust VCO coil T750 so that the voltage of
P7M02 pin (5) became DC 2.5 ±0.1V.
2) RF AGC (Automatic Gain Control) Adjust-
ment
MODE: PAL B/G (E11CH)
SPEC: 5.5±0.1V p-p
M.P: W393
A.P: VR701
Procedure:
a. Be tuning PAL B/G E11CH (216.25MHZ)
(strength of input electric field: 70±1dBu).
b. Connect the Digital Voltmeter to Tuner AGC
PIN.
c. Adjust VR701 so that the digital voltmeter is
5.5 ±0.1Vp-p.
Reference:
Maintain the input gain in adjusting AGC
faithfully.
Location Part No. Description Specification
A43 3721R-F004V PANELASSY FRONT
A44 3501R-0278C BOARDASSY SMPS
A45 3501R-0690A BOARDASSY PRE-AMP
OR
A45 501-520B MODULE PRE-AMP(P401P)
A46 3501R-0263E BOARDASSY MAIN I
250 217-570B CASE TOP
260 315-347B FRAME MAIN(60HR)
266 321-738A BRACKET ASSY HOUSING
267 255-429A PLATE GND(M/F)
268 255-359A PLATE SIDE GND
269 255-362A PLATE PREAMP GND
270 321-743A BRACKET PROTECT
275 340-086A HOLDER DIGITRON
280 3720R-F009K PANEL FRONT
283 3580R-0003E DOOR CST
284 442-681A SPRING DOOR
300 681-142E CORD H03WH2-F 2-0.75MM(2X0.5MH)
320 258-728C PANEL ASSY DISTRIBUTOR
330 220-050A COVER BOTTOM
452 353-051 A SCREW SPECIAL(3X10 FZMY)
459 353-046A SCREW SPECIAL (3X6 FZMY)
462 353-136A SCREW SPECIAL(4.6X12.5 FBK)
Cabinet Exploded View
Cabinet Part Li t

2
GOLDSTAR P 434 I www.u-view.co.uk
Location Part No. Description Specification
A00 412-187A DECK ASSY D-27 P (4HD MONO VCR)
OR
A00 412N187A DECK V(D D-27 P (4HD MONO VCR)
A01 413-374A DRUM ASSY (D-27 P4)
OR
A01 413B374A DRUM ASSY (D-27 P4) BOKWANG
OR
A01 413C374A DRUM ASSY (D-27 P4) SAMJUNG
A02 225-361A BASE ASSY P2
A03 225-364A BASE ASSY P3
A04 386-394A ARM ASSY CLEANER
A05 386-405A ARM ASSY T/UP
A06 321-668A BRACKET ASSY L/D MOTOR
A07 340-070A HOLDER ASSY PINCH
A08 333-331A LEVER ASSY F/R
A09 435-435A GEAR ASSY P2
A10 435-437A GEAR ASSY P3
A12 333-329A LEVER ASSY TENSION
A13 328-075A BAND ASSY TENSION
A20 219-023A HOUSING ASSY D-27
A21 340-010A HOLDER ASSY CST
A22 321-672A BRACKET ASSY SIDE (R)
001 413-317B DRUM SUB ASSY (PAL)
002 414-209A MOTOR ASSY DRUM GVD-027AALPS
002 414-217A MOTOR ASSY DRUM E20XL14 D27 SANKYO
003 311-011A CHASSISASSY’ D27
004 225-362A BASE SUB ASSY P2
006 225-368A BASE DRUM
007 225-371A BASE ASSY A/C
008 523-833A HEAD FE HVFHU0010AK ALPS
010 225-365A BASE SUB ASSY P3
012 225-399A BASE ASSY BRUSH
013 386-395A ARM CLEANER
014 324-835B HOLDER ASSY CLEANER
015 386-392A ARM ASSY TENSION
020 442-640A SPRING TENSION
021 456-070A REEL S27
022 456-071A REEL T27
025 340-008A HOLDER BAND(C)
026 333-330A LEVER TENSION
030 338-112A BRAKE ASSY SM
031 338-114A BRAKE ASSY TM
032 442-655A SPRING MB
033 338-116A BRAKE ASSY TS
034 442-654A SPRING TSB
035 316-019A BODY PRISM LED
036 257-011A PLATE UP
040 435-44A GEAR PINCH CAM
041 435-440A GEAR PINCH
042 435-439A GEAR CNT
043 386-404A ARM SUB ASSY T/UP
044 442-650A SPRING T/UP
045 321-669A BRACKET L/D MOTOR
046 414-199A MOTOR ASSY L/D
047 437-019A WORM L/D MOTOR
048 437-020A WORM WHEEL
050 386-401A ARM ASSY PINCH
051 340-073A HOLDER SUB ASSY PINCH
052 225-374A BASE TENSION
053 333-332A LEVER F/R
054 442-645A SPRING F/R
055 442-649A SPRING PINCH
056 333-334A LEVER ASSY P2
057 386-398A ARM F/R
060 435-436A GEAR P2
061 442-647A SPRING P2
062 333-336A LEVER ASSY P3
063 435-438A GEAR P3
064 442-648A SPRING P3
065 435-442A GEAR P/S
066 257-070A PLATE SLIDER
070 337-0076 CLUTCH ASSY S27
071 337-008A CLUTCH ASSY T27
072 386-396A ARM ASSY IDLER
013 442-644A SPRING UP/D
074 434-173A ROLLER ASSY GUIDE
074 434-173C ROLLER ASSY GUIDE
074 434-173D ROLLER ASSY GUIDE(DAI YANG)
075 435-433A GEAR CAM L/D
076 556-252B SWITCH MODE S(W(D-27),HMW0840-01 HOSI
077 435-432A GEAR PULLEY
080 442-656A SPRING H1
081 435-443A GEAR H1
082 333-339A LEVER H1
083 435-444A GEAR H-2
084 414-201A MOTOR GVC-027A CAPSTAN D-27 ALPS
085 321-696A BRACKET CAPSATN,D27
086 452-062A BELT CAPSTAN
090 321-670A BRACKET CAM
091 333-333A LEVER JOG
092 435-434A GEAR JOG
093 442-646A SPRING JOG
Location Part No. Description Specification
094 338-110A BRAKE ASSY CAP
095 333-338A LEVER TAB
096 442-652A SPRING TAB
100 257-072A PLATE TOP
101 386-407A ARM ASSY F/L
102 340-011A HOLDER SUB ASSY CST
103 321-671A BRACKET HOLDER(R)
104 333-341A LEVER STOPPER(R)
105 465-039A OPENER LID
106 386-410A ARM RELEASE
110 442-660A SPRING RELEASE
111 442-659A SPRING STOPPER
112 477-058A RUBBER GRIP
113 321-673A BRACKET SUB ASSY (R)
114 435-445A GEAR CAM F/L
115 435-446A GEAR CONNECT
116 435-447A GEAR WORM
120 333-342A LEVER SWITCH
121 442-661A SPRING SWITCH
122 257-074A PLATE COVER
OR
123 384-143A GUIDE CST
123 384-151A GUIDE CST27
126 465-040A OPENER DOOR
130 257-075A PLATE GROUND
131 340-062A HOLDER ASSY PRISM
401 1MPK0261418 PAN HEAD MACHINE SCREW +,- D2.6 L4.0 MSWR3/FZY
405 1MDC0262818 PAN HEAD MACHINE SCREW P/WASH+ D2.6 L12 MSWR3/FZY
406 1MEC0302018 PAN HEAD MACHINE SCREW S/W+ D3.0 L6.0 MSWR3/FZY
408 1MB00302418 BINDING HEAD MACHINE SCREW+ D3.0 L8.0 MSWR3/FZY
411 353-046B SCREW SPECIAL (3X8 FZMY)
421 1MP00302618 PAN HEAD MACHINE SCREW +! D3.0 L10.0, MSWR3/FZY
426 1MP00302018 PAN HEAD MACHINE SCREW +! D 3.0 L6.0 MSWR3/FZY
427 353-0546 SCREW MINIATURE
428 353-221A SCREW M3-L15
500 354-080F WASHER STOPPER
504 354-0016 WASHER P.S D3,1XD6X0.5T
511 354-080C WASHER STOPPER D2.6XD5X0.5T
518 354-128A WASHER STOPPER D1.7XD4.5X0.5T
519 354-128B WASHER STOPPER D2.5XD9X0.5T
A43 3721 R-FOO4V PANEL ASSY FRONT
A44 3501 R-0278C BOARD ASSY SMPS
A45 3501 R-0690A BOARD ASSY PRE-AMP
OR
A45 501-5206 MODULE PRE-AMP(P401 P)
A46 3501R-0263E BOARD ASSY MAIN I
250 217-5706 CASE TOP
260 315-3476 FRAME MAIN(60HR)
266 321-738A BRACKET ASSY HOUSING
267 255-429A PLATE GND(M/F)
268 255-359A PLATE SIDF GND
269 255-362A PLATE PRE-AMP GND
270 321-743A BRACKET PROTECT
275 340-086A HOLDER DIGITRON
280 3720R-F009K PANEL FRONT
283 3580R-0003E DOOR CST
284 442-681A SPRING DOOR
300 681-142E CORD H03WH2-F 2-0.75MM(2X0.5MH)
320 258-728C PANEL ASSY DISTRIBUTOR
330 220-050A COVER BOTTOM
452 1353-051A SCREW SPECIAL(3X10 FZMY)
459 353-046A SCREW SPECIAL (3X6 FZMY)
462 J353-1 36A SCREW SPECIAL(4.6X12.5 FBK)
801 480-660U INSTRUCTION ASSY
802 3890R-G116A BOX P434I 4UL1
803 283-300A PACKING E,PS(P131/PK103U)
OR
804 292-053A BAG SOFT(VCP)
804 3858R-0006A SHEET ROLL(W630XL300MX0.5T)
810 86i-505B CABLE SET ASSY RF-CABLE,ASSY, PAL
900 597-125B REMOTE CONTROL ASSY(M3 RIC;NORMAL)
901 255-409B PLATE TOP (M3)
902 217-611A CASE TOP (M3 R/C)
903 556-2708 SWITCH RUBBER-A
904 556-271B SWITCH RUBBER-B(M3)
905 6871R-0406A PWB ASSY! M3 R/C NORMAL
906 220-136A COVER BOTTOM (M3)
907 236-586A WINDOW LCD (M3)
908 220-137A COVER BATTERY (M3)
909 442-729A SPRING BATTERY-A
910 1TPH0202016 PAN HEAD TAPPING SCREW +2 D 2.0 L 6.0 MSWR3/(BK)
FIX 960-031E FIXTURE SVC FIXTURE
FIX1 6871R-0288A PWB ASSY! D-27 JIG
FIX2 6871R-0288B PWB ASSY! D-27 JIG
FIX3 6871R-0288C PWB ASSY! D-27 JIG
FIX4 6871R-0288D PWB ASSY! D-27 JIG
FIX5 6871R-0288E PWB ASSY! D-27 JIG
FIX6 322-065A SUPPORTER DECK SVC
FIX7 6871 R-0288J PWBASSY— D-27 FIXTURE
Mechanical Part Li t
Servo/Sy tem Control/Audio &
Tuner Waveform

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GOLDSTAR P 434 I U-View Limited
Servo/Syscon/Audio & Tuner Diagram

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GOLDSTAR P 434 I U-View Limited
IF PCB Diagram

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GOLDSTAR P 434 I www.u-view.co.uk
Power Supply Diagram Semiconductor Voltage