Brand: NEC
Category: Television
Document Type: Manual
Language: EN
Manual for CP-785A
Uploaded: Nov. 21, 2025, 8:18 p.m.
Manual Publish Date: 2002-09-01
- Main Features: Includes specifications, external terminals, and channel tables for the 59/68 Cm STEREO Color Television.
- Safety Instructions: Provides crucial information regarding X-RAY RADIATION PRECAUTION and general SAFETY PRECAUTIONS to be followed during servicing.
- Alignment Instructions: Details the procedures for microcontroller configuration in service mode and option settings, as well as TV set alignment steps including G2 alignment, white balance, focus, vertical geometry, horizontal centering, East/West correction, and AGC adjustment.
- IC Descriptions: Offers in-depth descriptions of key integrated circuits such as the TDA936x TV signal processor, MSP34 Multistandard Sound Processor, TDA894x Stereo Audio Amplifier, TDA835x Vertical Amplifier, TDA6107Q, 24C08 EEPROM, and STR-F665X power supply.
- Circuit Description: Explains the overall circuit through block diagrams and detailed descriptions of IF, source switching, microcontroller I/O, sound processing, vertical deflection, and power supply.
- Service Parts List: Enlists various components, including PCB differences, CRT differences, function/cabinet differences, and all electrical parts.
- Exploded View & PCB Layout: Provides visual aids for component identification and placement.
- Circuit Diagram: Offers schematic diagrams for troubleshooting and repair.
Troubleshooting and error codes
| LOC | PART NAME | PART Code | PART Description | Remark |
|---|---|---|---|---|
| R404 | R CARBON FILM | RD-4Z399J- | 1/4 3.9 OHM J | |
| R406 | R M-OXIDE FILM | RS02Z271JS | 2W 270 OHM J SMALL | |
| R415 | R M-OXIDE FILM | RS02Z102JS | 2W 1K OHM J SMALL | |
| R420 | R CARBON FILM | RD-AZ223J- | 1/6 22K OHM J | |
| R427 | R M-OXIDE FILM | RS01Z101J- | 1W 100 OHM J (TAPPING) | |
| R450 | R M-OXIDE FILM | RS02Z223JS | 2W 22K OHM J SMALL | |
| R481 | WIRE COPPER | 85801065GY | AWG22 1/0.65 TIN COATING | |
| R482 | WIRE COPPER | 85801065GY | AWG22 1/0.65 TIN COATING | |
| R501 | R CARBON FILM | RD-AZ101J- | 1/6 100 OHM J | |
| R502 | R CARBON FILM | RD-AZ101J- | 1/6 100 OHM J | |
| R503 | R CARBON FILM | RD-AZ332J- | 1/6 3.3K OHM J | |
| R504 | R CARBON FILM | RD-AZ101J- | 1/6 100 OHM J | |
| R505 | R CARBON FILM | RD-AZ101J- | 1/6 100 OHM J | |
| R506 | R CARBON FILM | RD-AZ332J- | 1/6 3.3K OHM J | |
| R507 | R CARBON FILM | RD-AZ101J- | 1/6 100 OHM J | |
| R508 | R CARBON FILM | RD-AZ332J- | 1/6 3.3K OHM J | |
| R509 | R CARBON FILM | RD-AZ681J- | 1/6 680 OHM J | |
| R512 | R CARBON FILM | RD-AZ101J- | 1/6 100 OHM J | |
| R513 | R CARBON FILM | RD-AZ101J- | 1/6 100 OHM J | |
| R514 | R CARBON FILM | RD-AZ101J- | 1/6 100 OHM J | |
| R515 | R CARBON FILM | RD-AZ153J- | 1/6 15K OHM J | |
| R516 | R CARBON FILM | RD-AZ393J- | 1/6 39K OHM J | |
| R517 | R CARBON FILM | RD-4Z181J- | 1/4 180 OHM J | |
| R518 | R CARBON FILM | RD-AZ273J- | 1/6 27K OHM J | |
| R520 | R CARBON FILM | RD-AZ333J- | 1/6 33K OHM J | |
| R521 | R CARBON FILM | RD-AZ391J- | 1/6 390 OHM J | |
| R522 | R CARBON FILM | RD-AZ221J- | 1/6 220 OHM J | |
| R523 | R CARBON FILM | RD-AZ331J- | 1/6 330 OHM J | |
| R524 | R CARBON FILM | RD-AZ561J- | 1/6 560 OHM J | |
| R525 | R CARBON FILM | RD-AZ104J- | 1/6 100K OHM J | |
| R526 | R CARBON FILM | RD-AZ479J- | 1/6 4.7 OHM J | |
| R527 | R CARBON FILM | RD-AZ431J- | 1/6 430 OHM J | |
| R528 | R CARBON FILM | RD-AZ221J- | 1/6 220 OHM J | |
| R530 | R CARBON FILM | RD-AZ470J- | 1/6 47 OHM J | |
| R531 | R CARBON FILM | RD-AZ102J- | 1/6 1K OHM J | |
| R533 | R CARBON FILM | RD-AZ103J- | 1/6 10K OHM J | |
| R537 | R CARBON FILM | RD-AZ101J- | 1/6 100 OHM J | |
| R538 | R CARBON FILM | RD-AZ101J- | 1/6 100 OHM J | |
| R539 | R CARBON FILM | RD-AZ101J- | 1/6 100 OHM J | |
| R540 | R CARBON FILM | RD-AZ101J- | 1/6 100 OHM J | |
| R541 | R CARBON FILM | RD-AZ101J- | 1/6 100 OHM J | |
| R543 | R CARBON FILM | RD-AZ472J- | 1/6 4.7K OHM J | |
| R545 | R CARBON FILM | RD-AZ682J- | 1/6 6.8K OHM J | |
| R547 | R CARBON FILM | RD-AZ103J- | 1/6 10K OHM J | |
| R548 | R CARBON FILM | RD-AZ472J- | 1/6 4.7K OHM J | |
| R549 | R CARBON FILM | RD-AZ472J- | 1/6 4.7K OHM J |