ORDER NO.

ARP3036

PROJECTION COLOUR TELEVISION

SD-T50W1

This service manual should be used together with the following manual(s):
Model No. Order No. Remarks

ARP2932

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Type Model Power Requirement SD-T50W1

WYZI7/2 AC220240V

Remarks
PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936

PIONEER CORPORATION 1999

OZZR JULY 1999 Printed in Japan

2. SCHEMATIC DIAGRAM

Note: When ordering service parts, be sure to refer to "EXPLODED VIEWS AND PARTS LIST" or "PCB PARTS LIST".
2.1 OVERALL WIRING DIAGRAM
Only the differences in the overall wiring diagram between WYZI7/2 type and SL type are shown.
5.1 OVERALL WIRING DIAGRAM
C CONNECTOR ASSY ASSY (AWZ6081)

TUNER ASSY (AWZ6155)

AV I/O ASSY ASSY (AWZ6121)

L6 FERRITE CORE ATX1019

L7 BLOCK CORE ATX1030
POWER SUPPLY ASSY (AWV1767)

J13 ADX2247

J101 ADX2536
L4 CHOKE COIL T1 POWER TRANSFORMER

ATS1555

CN923 CN921 CN922

RELAY ASSY (AWV1768)

S2 POWER SWITCH ASG1082

CN924 J12 ADX2537

J11 ADX2538
AC IN ASSY (AWZ6420) CN901
AC INLET AKP1021 AC220240V 50/60Hz L5 FERRITE CORE ATX1019 AC POWER CORD ADG1107
SD-T50W1 2.2 POWER SUPPLY and RELAY ASSEMBLIES
Only the differences in the power supply assy between WYZI7/2 type and SL type are shown.

A To POWER TRANSFORMER

POWER SUPPLY ASSY (1/3) (AWV1767) Power Supply Block
RELAY DRIVE ASSY E13 ( SCH17)

J12 ADX2537

ADX2536
H. DEFLECTION BLOCK ( SCH15) A
H. DEFLECTION BLOCK ( SCH15) CONVERGENCE ASSY C1 ( SCH11)
HIGH VOLTAGE BLOCK ( SCH16)
To S2 POWER SWITCH To T1 POWER TRANSFORMER D
B CONNECTOR ASSY G4 ( SCH17)

SD-T50W1 2.3 TUNER ASSY

C CONNECTOR ASSY (AWZ6081)
AV I/O ASSY (1/2) A6 ( SCH3)
AV I/O ASSY (1/2) A5 ( SCH3)

SD-T50W1 2.4 AV I/O ASSY

Only the differences in the AV I/O assy between WYZI7/2 type and SL type are shown.

5.3 AV I/O ASSY (1/2)

AV I/O ASSY (1/2) (AWZ6121)

AV I/O BLOCK

SCH-3 SCH-3

5.4 AV I/O ASSY (2/2)

AV I/O ASSY (2/2) (AWZ6121)

TELETEXT BLOCK

SCH-4 SCH-4
To VIDEO UCOM ASSY UCOM BLOCK
2.5 VIDEO UCOM ASSY (1/2)
Only the differences in the VIDEO UCOM assy (1/2) between WYZI7/2 type and SL type are shown.
5.5 VIDEO UCOM ASSY (1/2)
VIDEO UCOM ASSY (1/2) (AWV1566)

VIDEO BLOCK

SD-T50W1 2.6 VIDEO UCOM ASSY (2/2)
VIDEO UCOM ASSY (2/2) (AWV1566)

UCOM BLOCK

FRONT CONTROL ASSY A CONNECTOR ASSY B1 ( SCH18) H2 ( SCH17)
CONVERGENCE ASSY C2 ( SCH11)
To AV I/O ASSY TELETEXT BLOCK

AUDIO ASSY ( SCH10)

AV I/O ASSY (1/2) A10 ( SCH3)

SD-T50W1 2.7 AUDIO ASSY

AUDIO ASSY (AWZ6123)
VIDEO UCOM ASSY (2/2) U5 ( SCH6 )
VIDEO UCOM ASSY (2/2) U6 ( SCH6 )
2SC2458T 2SA1048T HSS104-02TP

To EXTERNAL SPEAKERS

To INTERNAL SPEAKERS
SD-T50W1 2.8 CONVERGENCE ASSY
Only the differences in the convergence assy between WYZI7/2 type and SL type are shown.
CONVERGENCE ASSY (AWV1547)

5.11 CONVERGENCE ASSY

SCH-11

To DY CONVERGENCE

4. ADJUSTMENT
Note: Only the differences in the adjustment between WYZI7/2 type and SL type are shown.
4.1 WHEN TUNER ASSY WAS REPAIRED

For System B/G

Step No. 4 Adjustment Item Adjacent audio trap adjustment for system B Input Signal Adjustment Point Adjustment Procedure Adjust so that the 40.4 MHz carrier level of TP1501 (SAW IN) becomes minimum.

F1508 (T)

4.2 WHEN POWER SUPPLY ASSY WAS REPAIRED
135V Power Supply Adjustment
Step No. 1 Adjustment Item 135V power supply adjustment Input Signal Monoscope signal Adjustment Point Adjustment Procedure Adjust so that the voltage of both sides of C135 becomes 135 V 0.5 V.

CN923 03

RELAY ASSY

CNL N AC220V/50Hz

CN922 02

CN921 01

AC 220V ATS1555 AC 100V CN101 E4 CN106 E13 J101 E14 CN105 E11

To RELAY DRIVE ASSY

POWER SUPPLY ASSY