CONTENTS SAFETY PRECAUTIONS................................2 SERVICE HINTS ..................................3 SERVICE POSITION.................................4 ADJUSTMENT PROCEDURE AND SELF-CHECK ........................5 WAVEFORM PATTERN TABLE ...............................6 ALIGNMENT SETTINGS................................7 BLOCK DIAGRAMS ..................................8 PARTS LOCATION .................................13 REPLACEMENT PARTS LIST ..............................14 SCHEMATIC DIAGRAMS ...............................26 CONDUCTOR VIEWS................................33 SAFETY PRECAUTIONS GENERAL GUIDE LINES It is advisable to insert an isolation transformer in the Check each exposed metallic part and check the a.c.
SERVICE HINTS How to remove the rear cover Remove the 10 screws as shown in Fig.2. SCREWS Fig.2. LOCATION OF CONTROLS Y - Board P - Board Focus C - Board Screen K - Board H - Board E - Board M - Board Fig.3.
HOW TO MOVE THE CHASSIS INTO SERVICE POSITION Remove the bead clamper from the mains lead and affix,using back cover screw, into top right-hand cabinet rib (A), shown in Fig.4. Hold and lift the rear of the E-PCB chassis and gently pull the chassis toward you, as shown in Fig.4.
Page 5
ADJUSTMENT PROCEDURE Item / Preparation Adjustments Set the +B voltage up as follows:- +B SET-UP Adjust R811 so that B2 shows 148V±1V. Receive a Greyscale signal. Confirm the following voltages. Set the controls :- ± 0,25V ± 0,25V Brightness Minimum 12 ±...
WAVEFORM PATTERN TABLE Vert Drive Vert Out VFLB IC451 Pin 2 IC601 Pin 31 IC451 Pin 3 20ms 20ms 20ms H - Out H - Out H - Pulse IC601 Pin 50 IC701 Pin 5 Base Q503 64µs 64µs 64µs HFLB HFLB Video Out...
ALIGNMENT SETTINGS (The figures below are nominal and used for representative purposes only.) Alignment Function Settings / Special features H-Pos Horizontal Position Optimum setting. V-Pos Vertical Position Optimum setting. H-Amp Horizontal Amplitude Optimum setting. V-Amp Vert. Amplitude Optimum setting. E/W-Amp1 EW-amplitude Optimum setting.
Page 8
VIDEO BLOCK DIAGRAM Y - BOARD E - BOARD Q906 Q908 COILS Q905 Q907 Q909 IC601 Q104 61 V IN 1 Q950 Q951 TUNER IC351 SVM OUT 34 VIDEO PROCESSOR B OUT 39 Q353 Q305 Q306 43 B IN Q105 OUTPUT 42 G IN G OUT 38...
Page 9
AUDIO BLOCK DIAGRAM M - BOARD E - BOARD TUNER IC2101 E16A M1 AUDIO IC251 PROCESSOR Q101 DACM_R 24 AUDIO OUTPUT 47 ANA_IN1+ Q102 HEADPHONE L 11 DACM_L 25 DACA_R Q2304 22 DACA_L DACA_L SC3_IN_R 38 Q2302 1 R OUT SC1_OUT_R 30 SC1_IN_R 42 2 R IN...
Page 10
DOLBY BLOCK DIAGRAM C - BOARD K - BOARD IC2704 Q2705 JK2702 Surround AUDIO Surround L Q2423 AMPLIFIER Centre Surround R Q2425 IC2703 Woofer Centre JK2402 AUDIO Q2426 Q2428 AMPLIFIER Woofer Q2703 Q2427 Q2704 IC2702 AUDIO AMPLIFIER I2S_DA_OUT_2 JK2401 IC2401 Q2405 Q2406 Q2403...
Page 11
CONTROL BLOCK DIAGRAM E - BOARD H - BOARD TUNER IC3401 VIDEO IC2101 SWITCHING AUDIO Q3401 IC601 SDA 1 PROCESSOR VIDEO PROCESSOR SCL 1 SERVICE / TEST SDA 1 SCL 1 M - BOARD SDA 2 M2 E17 SCL 2 VPROT Q451 LOCAL...
Page 22
Cct Ref Parts Number Description Cct Ref Parts Number Description 470pF 10µF C356 ECUV1H471JCX S.M. CAP C628 ECA1CM100GB ELECT 470pF 100nF C357 ECUV1H471JCX S.M. CAP C629 ECUV1H104KBX S.M. CAP 220nF 10pF C358 ECQM1H224J FILM C630 ECUV1H100DCX S.M. CAP 1.5nF 68nF C360 ECKC3D152J CERAMIC...
Page 23
Cct Ref Parts Number Description Cct Ref Parts Number Description 100nF 100µF C950 ECJ2VB1C104K ELECT 350V C2135 ECA1HM101GB ELECT 10nF 100nF C1061 ECUV1H103KBX S.M. CAP C2136 ECJ2VF1H104Z ELECT 350V 100µF 10µF C1062 ECA1HM101GB ELECT C2137 ECA1CM100GB ELECT 330pF 470pF C1063 ECUV1H331JCX S.M.
Page 24
Cct Ref Parts Number Description Cct Ref Parts Number Description 1µF 2.2nF C2477 ECA1HM010GB ELECT C3015 ECUV1H222JCX S.M. CAP 1µF 2.2nF C2478 ECA1HM010GB ELECT C3016 ECUV1H222JCX S.M. CAP 100pF 47µF C2479 ECUV1H101JCX S.M. CAP C3017 ECA1CM470GB ELECT 100pF 560pF C2480 ECUV1H101JCX S.M.
SCHEMATIC DIAGRAMS FOR MODEL TX-W32R4DP (EURO-4 CHASSIS) IMPORTANT SAFETY NOTICE Components identified by mark have special characteristics important for safety. When replacing any of these components, use only manufacturer's specified parts. NOTE RESISTOR All resistors are carbon ¼W resistor, unless marked otherwise.
Need help?
Do you have a question about the TX-W32R4DP and is the answer not in the manual?
Questions and answers