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Manual

MODELS

TTV219/259/299

TDA9373/TDA9351Multi-System Chassis TDA9373/TDA9351 series TV chassis

Contents

I. Fore word....2
II. Main sizes and remote controller buttons....3
III. Functions of main IC pins....5
IV. Voltages and resistances of main IC pins....10
V. Main signal flow and voltage flow....14
VI. Factory commissioning instructions....15
VII. Quick investigation flow analysis for conventional faults....21
VIII. Main electrical schematic diagrams....Annex
IX. Main PCB diagrams....Annex

WARNING

The power part in this receiver is live. Please use an isolative transformer in servicing. To prevent electric shock don't remove cover. Refer servicing to qualified service personnel.

I. Foreword

Phillips UOC series TV chassis is a new generation super single chip chassis developed to replace 8838, 8842 and 8843. This chassis genuinely combines CPU and main chip and, compared to original 88XX series chassis, excels in performance, functions and manufacture process. Besides, the technical design level of semiconductor chips has enjoyed a substantial rise and belongs to the latest product of analog TV of Phillips. According to different performance and functions, Phillips UOC has a total of 25 different product series. To meet the market demand of our company, we have up to now selectively developed and put into batch production TDA9351 (with teletext) and DA9373 series chips. Chips of other series will be developed and designed according to market conditions. Main functional differences between TDA9351 and TDA9373 series chips are as follows:

IC VERSION (TDA) 9351 9373
TV range	90^	110^
Mono intercarrier multi-standard sound demodulator 4.5-6.5MHz with switchable centre frequency	√ √
Audio switch √ √
Automatic volume leveling	√	√
Automatic volume leveling or subcarrier output (for Comb filter application)	√ √
PAL decoder √ √
NTSC decoder	√	√
SECAM decoder √
Horizontal geometry (E-W) √
ROM size	32k	32k
User RAM size	1k	2.25k
Teletext	1 page
Closed captioning	√	√

II. Main sizes and instructions on usage of keys

1. Main sizes

Note: Only TDA9351 chassis have SECAM system

TV system	TV: PAL, SECAM (TDA9351)AV: PAL, NTSC 3.58,NTSC4.43, SECAM (TDA9351)
Power consumption	14": 65W 21":75W 25":110W 29":130W34":150W
Power supply range	AC:150V---AC:260V 注1
Tuning range	Full frequency band: VHF, UHF, CATV
Medium band	38.0MHz , 38.9MHz or others
Wireless input impedance	75Ω unbalanced
AV input	AV1 , AV2 , SVHS , RGB 注2
AV output 1 channel
Audible output 14": 2W 21":3W 25":4.5W 29"-34":5W
Loudspeaker impedance 16Ω /8Ω

Note: ① Some TVs have AC: 90-270V (wide power function)

② Only 25" and above TVs have SVHS input functions;

only TDA9351 TVs have RGB input functions.

1. Description of keys

graph TD
    A["TV/ AV"] --> B["⑦"]
    C["- P +"] --> D["⑥"]
    E["- V + MENU"] --> F["④"]
    G["①"] --> H["⑤"]
    I["③"] --> J["②"]
    K["①"] --> L["①"]

graph TD
    A["①"] --> B["VIDEO"]
    A --> C["IN"]
    A --> D["AUDIO"]

① Main power switch

② Remote control sensor

③ Power indicator

②③ Program number down (P-) and up (P+)

⑤ Volume decrease (V-) and increase (V+)

②⑤ Menu button

⑦ TV/AV button

1. Description of AV interface

① Front AV input interface; some models have side AV input;

② AV input/output interface;

③ SVHS input interface only available for 25" or above TVs;

⑤ RF input interface.

1. Brief introduction to remote controller functions

TDA9351 remote controller functions

Buttons on remote controller:

1. TV switchover
2. Menu button
3. AV button
4. Mute button
5. Direct Program No. buttons
6. Sound Menu button
7. Time Menu button
8. Child lock button
9. Search Menu button (Website key in text status)
10. Keep current text page (Text only)
11. Display attached text page (Text only)
12. Transfer of Eastern/Western European languages (Text only)

13. Text display enlarge (Text only)

14. View TV program in text mode (Text only)

15. Switchover between Text and TV mode (Text only)
16. Text background work button (Text only)
17. Text mixed display button
18. Setup Menu button
19. Picture Menu button
20. Program back view button
21. 1-, 2- or 3-digit Program No. switchover button
22. Picture mode button
23. Screen display button
24. Program No. Up/Down button
25. Standby button
26. Volume UP/Down button

TDA9373 remote controller functions

Buttons on remote controller:

1. TV switchover
2. Menu button
3. AV status switch button
4. Mute button
5. Direct Program No. buttons
6. Picture button
7. Tuning button
8. Sound button
9. Prog.swap button
10. Color system button

11. Sound system button (only for some TVs)

12. Volume UP/DOWN button

13. Standby button
14. Program No. Up/Down button
15. Screen display button
16. Picture mode button
17. Program back view button
18. Feature button
19. Timing button
20. Game button
21. Clock button
22. I/II button (only for some TVs)
23. Effect button (only for some TVs)

III. Main IC pin functions