Hitachi C14-RF60 Service Manual Download | Manualshive

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C14-RF60

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SPECIFICATIONS .............................................. 2

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IMPORTANT SERVICE NOTES ......................... 2

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ADJUSTMENT PRECAUTIONS ......................... 3

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MEMORY MAP ................................................. 11

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GA1 HOTEL MODE APPLICATION ................. 15

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TROUBLE SHOOTING TABLE ......................... 16

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CHASSIS LAYOUT ........................................... 18

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BLOCK DIAGRAM ............................................ 19

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DESCRIPTION OF SCHEMATIC DIAGRAM .... 23

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SCHEMATIC DIAGRAMS

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MAIN UNIT ................................................... 24

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CRT UNIT ...................................................... 26

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HEADPHONE UNIT ...................................... 26

Page

YS

No.

S E R V I C E M A N U A L

CAUTION:

Before servicing this chassis, it is important that the service technician read the

"IMPORTANT SERVICE NOTES" in this Service Manual.

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

C O L O UR T E L E V I S I O N

JULY 2003 Digital Media System Group, Hitachi Asia Ltd.

G A 1 C h a s s i s

PA L / S E C A M / N T S C

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MULTI UNIT .................................................. 27

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PRINTED WIRING BOARD ASSEMBLY .......... 28

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SOLID STATE DEVICE BASE DIAGRAM ........ 34

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REPLACEMENT PARTS LIST ......................... 35

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ELECTRICAL PARTS
MAIN UNIT ................................................... 36
CRT UNIT ...................................................... 40
HEADPHONE UNIT ...................................... 40
MULTI UNIT .................................................. 41

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SUPPLIED ACCESSORIES ......................... 42

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PACKING PARTS .......................................... 42

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CABINET PARTS .......................................... 42

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PACKING OF THE SET .................................... 43

Page

CONTENTS

C14-RF60

Destination

Code

HONG KONG

051

JAPAN TOURIST

981J

1
2
3
...
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Summary of Contents for C14-RF60

Page 1: ...he service technician read the IMPORTANT SERVICE NOTES in this Service Manual SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT COLOUR TELEVISION JULY 2003 Digital Media System Group Hitachi Asia Ltd GA1 Chassis PAL SECAM NTSC Ë MULTI UNIT 27 PRINTED WIRING BOARD ASSEMBLY 28 SOLID STATE DEVICE BASE DIAGRAM 34 REPLACEMENT PARTS LIST 35 Ë ELECTRICAL PARTS MAIN UNIT 36 CRT UNIT 40 HEADPH...

Page 2: ...assis has been assembly together and ready to be POWER ON for the FIRST TIME make sure to short JA137 JA138 to switch to the service mode position first and then turn on the main power switch See 2 1 above Precaution If haven t done this initiation it may possibly generate excessive Beam current 3 For reference please check with memory map GA1 Series type RH IX3368CE Attachment AGC GEOMETRIC MODE ...

Page 3: ... S BG PLAYBACK SECAM P SECAM FE RF NTSC 3 58 F N358 FE RF NTSC 4 43 F N443 FE RF SECAM F SECAM VIDEO MUTE AT IDENT LOSS VMI VIDEO MUTE AT PROGRAM SOURCE CHANGE VMC HOTEL MODE HTL REDUCED FM DEMODULATION GAIN FOR BTSC SIGNAL BTSC A A NUMBER OF EXT AV SOURCE AV FM WINDOW SELECTION FMWS SOUND MUTE BIT 0 SM0 SOUND MUTE BIT 1 SM1 THAI LANGUAGE THA ARABIC LANGUAGE ARA MALAY LANGUAGE MAL CHINESE LANGUAGE...

Page 4: ...NITIAL DATA FIX ADJ REMARK SHARPNESS OFFSET NTSC443 SHP O4 0 15 8 FIX VERTICAL SCAN DISABLE VSD 0 DISABLE 1 ENABLE 0 FIX BLACK STRETCH BKS 0 DISABLE 1 ENABLE 1 FIX AUTOMATIC VOLUME LEVELING AVL 0 DISABLE 1 ENABLE 1 FIX FAST FILTER IF PLL FFI 0 DISABLE 1 ENABLE 0 FIX ENABLE VERTICAL GUARD RGB BLANKING EVG 0 DISABLE 1 ENABLE 1 FIX EHT TRACKING MODE HCO EHT 0 DISABLE 1 ENABLE 1 FIX OVERSCAN SWITCH OF...

Page 5: ...G 051 20 000 40 000 12300K CHINESE I 6 JAPAN TOURIST 981J 35 000 30 000 12300K ENGLISH B G 6 FACTORY SETTING BY MODEL Reference Geomagnetism Adjustment LANGUAGE QTY ENGLISH CHINESE FRENCH ARABIC MALAY RUSSIAN INITIAL LANGUAGE SOUND SYSTEM 2 CHINESE I 3 ENGLISH B G MCL1 CH NO Fv MHz SOUND SYS 0 41 10 1 48 25 B G 2 62 25 B G 3 77 25 D K 4 175 25 B G 5 182 25 B G 6 183 25 D K 7 191 25 D K 8 196 25 B ...

Page 6: ...al This terminal must have the probe alone con nected 5 Set the RF AGC to 0 6 V with no saturation with the waveform 6 Adjust the tuner IF coil to obtain the waveform as shown in Fig 2 Note Be sure to keep the tuner cover in position during this adjustment E 9 CH P C 10k 100k 1n60 75ohm IF OUT 1 5 0 8dB 1000p Oscilloscope Fig 2 Fig 3 PURITY ADJUSTMENT NO Adjustment part Adjusting procedure and con...

Page 7: ...net Note 1 Call SUB BRI in service mode Receive Cross hatch pattern with 5 black level windows 2 Adjust the SUB BRIGHT bus data in order that the line 1and 2 have the same darkness wherelse line 3 is one step data brighter than line 2 Fi nally data minus 1 to make line 1 2 and 3 are in same level darkness 3 Clear the SERVICE mode Remark 1 Before CRT cutoff adjustment SUB BRIGHT DRI RS RW RC DRI GS...

Page 8: ...d conditions Waveform and others 1 VIDEO AND AUDIO OUT PUT CHECK 1 Receive the PAL Colour Bar signal 100 White Colour Bar Sound 400 Hz 100 Mod 2 Terminate the Video output with a 75 ohm im pedance Make sure the output is as speci fied 1 0 Vp p 3 dB 3 Terminate the Audio output with a 10k ohm impedance Make sure the O P is as speci fied 1 76 Vp p 3 dB 2 VIDEO AND AUDIO INPUT CHECK 1 Using the TV AV...

Page 9: ...COLOUR BAR signal press the COLOUR SYSTEM key to select modes except PAL check the COLOUR is not working properly Then select the PAL mode Check again its colour so that it is working properly 2 Receive SECAM COLOUR BAR signal press COLOUR SYSTEM key to select modes except SECAM check the COLOUR is not working properly Then select the SECAM mode Check again its colour so that it is work ing proper...

Page 10: ...C 00 0F Y DELAY TV SECAM 0F 00 0F Y DELAY TV N358 0C 00 0F Y DELAY TV N443 0C 00 0F Y DELAY TV BW 0C 00 0F Y DELAY AV PAL 0C 00 0F Y DELAY AV SECAM 0F 00 0F Y DELAY AV N358 0C 00 0F Y DELAY AV N443 0C 00 0F Y DELAY AV BW 0C 00 0F COLOUR OFFSET PAL 08 00 0F COLOUR OFFSET SECAM 08 00 0F COLOUR OFFSET N358 04 00 0F COLOUR OFFSET N443 04 00 0F SHARPNESS OFFSET PAL 08 00 0F MODEL LETTER NO 1 20th Augus...

Page 11: ...ECK DATA CHECK TYPE REMARK ADDRESS DATA HEX D7 D6 D5 D4 D3 D2 D1 D0 40 SHARPNESS OFFSET SECAM 04 00 0F 41 SHARPNESS OFFSET N358 0C 00 0F 42 SHARPNESS OFFSET N443 08 00 0F 43 44 FCO ACL OSO EHT EVG FFI AVL BKS 00 FF 45 SECAM N443 N358 PB SECAM BG I DK M 00 FF 46 SM1 SM0 FMWS AV BTSC HTL VMC VMI 00 FF 47 HP2 FSL RUS FRA CHN MLY ARB THA 00 FF 48 AGC1 AGC0 BIL CPT FOB AV FOA AV FOB FE FOA FE NDF MSA L...

Page 12: ...O MICON EEPROM EEPROM CHASSIS CTV FINAL LAST INITIAL SETTING DATA DEFAULT RANGE WRITE CPU CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE REMARK ADDRESS DATA HEX D7 D6 D5 D4 D3 D2 D1 D0 C0 TUNING FREQUANCY LOWER PART POS 25 C1 S SYS AFT auto C SYS C2 TUNING FREQUANCY HIGHER PART POS 26 C3 TUNING FREQUANCY LOWER PART C4 S SYS AFT auto C SYS C5 TUNING FREQUANCY HIGHER PART POS 27 C6 TUNING FREQUANCY LOW...

Page 13: ...S 149 TUNING FREQUANCY HIGHER PART POS 71 14A TUNING FREQUANCY LOWER PART 14B S SYS AFT auto C SYS 14C TUNING FREQUANCY HIGHER PART POS 72 14D TUNING FREQUANCY LOWER PART 14E S SYS AFT auto C SYS 14F TUNING FREQUANCY HIGHER PART POS 73 150 TUNING FREQUANCY LOWER PART 151 S SYS AFT auto C SYS 152 TUNING FREQUANCY HIGHER PART POS 74 153 TUNING FREQUANCY LOWER PART 154 S SYS AFT auto C SYS 155 TUNING...

Page 14: ... be always ch 1 maximum sound level out will be set the half of full scale If you set hotel mode in AV starting channel will be the last ch which you received before power off same as normal operation CONDITION When using hotel mode user can control contrast brightness sharpness and tint function But after power off it will return to the initial setting You can t use Preset mode Fine tuning Skip m...

Page 15: ...C14 RF60 19 6 5 4 3 2 1 A B C D E F G H BLOCK DIAGRAM CRT and HEADPHONE Unit Ë CRT Unit Ë HEADPHONE Unit ...

Page 16: ...C14 RF60 20 8 7 10 9 6 5 4 3 2 1 A B C D E F G H BLOCK DIAGRAM MAIN Unit ...

Page 17: ...21 17 16 19 18 15 14 13 12 11 10 C14 RF60 ...

Page 18: ...C14 RF60 22 6 5 4 3 2 1 A B C D E F G H BLOCK DIAGRAM MULTI Unit ...

Page 19: ...LIMINATE HAZARD OF ELECTRIC SHOCK NOTES 1 The nit of resistance ohm is omitted K 1000 ohms M Meg ohm 2 All resistors are 1 10 watt unless otherwise noted 3 All capacitors are µF unless otherwise noted P µµF VOLTAGE MEASUREMENT CONDITIONS 1 Voltage in parenthesis measured with no Signal 2 Voltages without parenthesis measured with 3mVB W or Colour Signal 3 All the voltages in each point are measure...

Page 20: ...C14 RF60 24 8 7 10 9 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM MAIN Unit ...

Page 21: ...25 17 16 19 18 15 14 13 12 11 10 C14 RF60 ...

Page 22: ...C14 RF60 26 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM CRT and HEADPHONE Unit Ë CRT Unit Ë HEADPHONE Unit ...

Page 23: ...C14 RF60 27 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM MULTI Unit ...

Page 24: ...MITTER B C E 1 2 3 1 9 T R COLLECTOR JC COLLECTOR BASE EMITTER BASE EMITTER H R COLLECTOR BASE EMITTER 1 5 1 3 5 7 2 4 6 8 9 CATHODE ANODE RED 1 14 M52797SP 28 15 TX0110BM TX0124BM 2PC1815 2SC3207 DX0111PE KA7808A STRG5653 AN7523 2SD2586 M24C04W BR24C04 CAT24W04 A1530AR 2SC2735 C3928AR iX3368CE PX0013PE AN5522 ...

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