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If the Chassis. No. does not match the unit’s, additional Service Literature is required. Only the Difference Service Information is given in this manual. For detail Service Information, Refer to the Original Service Manual SM5110511-00, issued in August 2003, for Models PLC-SU50S. Differences: The outline of the differences are as follows;...
■ Electrical Adjustments ● Service Adjustment Menu Operation To enter the service mode To enter the “Service Mode”, press and hold the MENU and INPUT buttons on the projector at the same time for more than 3 seconds. The service menu appears on the screen as follows. To adjust service data Select the adjustment group no.
Electrical Adjustments ● Circuit Adjustments CAUTION: The each circuit has been made by the fine adjustment at factory. Do not attempt to adjust the follow- ing adjustments except requiring the readjustments in servicing otherwise it may cause loss of per- formance and product safety.
Electrical Adjustments Clamp adjustment [PC] Clamp adjustment [COMPONENT] 1. Receive the 16-step grey scale computer signal with 1. Receive the 16-step grey scale component signal Computer2 [RGB] mode. with Computer2 [Component] mode. 2. Enter the service mode. 2. Enter the service mode. TPG1 TPG1 3.
Electrical Adjustments Sub Gain adjustment [PC] Video Center adjustment 1. Receive the 16-step grey scale computer signal with 1. Receive the 16-step grey scale computer signal with Computer2 [RGB] mode. Computer2 [RGB] mode. 2. Enter the service mode. 2. Enter the service mode TPG1 TPGV1 3.
Electrical Adjustments ⁄1 NRS adjustment Gamma adjustment 1. Receive the 16-step gray scale computer signal with [PC-GAMMA ADJUSTMENT] Computer2 [RGB] mode. 1. Receive the 16-step grey scale computer signal with 2. Enter the service mode. Computer2 [RGB] mode. TPG1 3. Connect an oscilloscope to test point “ ”...
Electrical Adjustments ● Service Adjustment Data Table These initial values are the reference data written from the CPU ROM to memory IC when replaced new memory IC. The adjust- ment items indicated with “✻” are required to readjust following to the “Electrical adjustments”. Other items should be used with the initial data value.
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Electrical Adjustments Adjustment Item Initial Value Range Input source / Description Real/Cinema GAMMA 14 469/497 0 ~ 1023 Real/Cinema GAMMA 15 424/497 0 ~ 1023 Group 100 H8 Option Lamp Time Monitor 0~8738 Read Only RS232C Baudrate 0 ~ 1 0: 19200bps1: 9600bps Cooling Time 1 ~ 15...
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Electrical Adjustments Adjustment Item Initial Value Range Input source / Description ECO_TEMP_FAN1_MAX 48/84 Control End Temperature for for FAN1 at Eco Mode SVGA/XGA ECOTEMP_FAN2_MIN 41/47 0~255 Control Start Temperature for FAN2 at Eco Mode SVGA/XGA ECO_TEMP_FAN2_MAX 48/54 Control End Temperature for for FAN2 at Eco Mode SVGA/XGA ECO_VALU_FAN1_MIN 70/70...
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Electrical Adjustments Adjustment Item Initial Value Range Input source / Description Group: 300 I/P L1 LWDIFFTH 0 ~ 255 L1 For motion movie L1 HIDIFFTH 0 ~ 255 L1 HIMOTHR 0 ~ 16 L1 LWMOTHR 0 ~ 16 L2 LWDIFFTH 0 ~ 255 L2 Still picture L2 HIDIFFTH...
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Electrical Adjustments Adjustment Item Initial Value Range Input source / Description HDTV DISP LINE 0 ~ 4096 HDTV CLAMP 0 ~ 127 HDTV WIDTH 0 ~ 63 Group: 514 HDTV 575p Gakaku (Component) HDTV TOTAL DOTS 1253 0 ~ 4096 HDTV DISP DOTS 0 ~ 4096 HDTV H BACK PORCTH...
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Electrical Adjustments Adjustment Item Initial Value Range Input source / Description Group: 523 RGB 720p Gakaku RGB TOTAL DOTS 2203 0 ~ 4096 RGB DISP DOTS 1666 0 ~ 4096 RGB H BACK PORCTH 0 ~ 4096 RGB V BACK PORCTH 0 ~ 4096 RGB DISP LINE 0 ~ 4096...
■ Electrical Parts List MA7-SU50S01 Product safety should be considered when a component replacement is made in any area of a projector. Components indicated by a ! mark in this parts list and the circuit diagram show components whose value have spe- cial significance to product safety.
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MA7-SU50S01 Electrical Parts List Note: Parts order must contain Chassis No., Part No., and Descriptions. ● OUT OF CIRCUIT BOARD R/C Board F601 Main Board Fuse Power Board AV Board A901 DVI Board Ballast Board Lamp Cover SW Board FN904 Cooling Fan(R) FN905 Cooling Fan(G)
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MA7-SU50S01 Electrical Parts List Key No. Part No. Description Key No. Part No. Description Q053 405 014 4509 TR 2SC2412K T146 R ASSEMBLIED BOARDS 405 014 4608 TR 2SC2412K T146 S 405 015 8704 TR 2SC2812-L6-TB ! 610 306 7261 ASSY,PWB,AV MA7A 405 015 8902 TR 2SC2812-L7-TB...
PLC-SU50S MA7-SU50S01 These schematic diagrams and printed wiring board drawings are part of the service manual original for chassis No. MA7-SU50S00, models PLC-SU50S. File with the service manual No. SM5110511-00. Note: All the information of part numbers and values indicated on these diagrams are at the beginning of production.
■ Parts description and reading in schematic diagram MA7-SU50S01 1. The parts specification of resistors, capacitors and Resistor Reading coils are expressed in designated code. Please check Example 1/2 D J 10K B the parts description by the following code table. 2.
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■ Pin description of diode, transistor and IC MA7-SU50S01 ● Diode ● Diode K: Cathode A: Anode ● Transistor/FET ● Transistor/FET C: Collector D: Drain B: Base G: Gate Index E: Emitter S: Source C1 C2 C1 C2 ● IC ●...
■ Printed Wiring Board Diagrams ! CAUTION This projector is isolated from AC line by using the internal converter transformer. Please pay attention to the following notes in servicing 1. Do not touch the part on hot side (primary circuit) or both parts on hot and cold sides (secondary circuit) at the same time.