2019年11月13日 星期三

Hitachi VT-498EM VCR 錄影機高頻訊號處理板拆解(六)

Hitachi VT-498EM VCR 錄影機高頻訊號處理板拆解(六):

Hitachi(日立)VT-498EM VCR(盒式磁帶錄像機 / Video Cassette Recorder) 錄影機高頻訊號處理板(RF Signal Processing Board)尺寸為 280mm × 175 / 183mm × 1.6mm,重量有 242g(不包括高頻頭),單面 HTK-5V 板(Single Side PCB),PCB編號是 150042,生產廠商是 SSA,生產時間 P0201(估計在 1991年)。

Hitachi VT-498EM VCR 錄影機高頻訊號處理板(RF Signal Processing Board)的正面
Hitachi VT-498EM VCR 錄影機高頻訊號處理板(RF Signal Processing Board)的背面
Hitachi VT-498EM VCR 錄影機高頻訊號處理板(RF Signal Processing Board)上 1片 Module(模組),HT4603-9B09 SIP-9 封裝。高頻訊號處理板(RF Signal Processing Board)共有 16枚 IC(集成電路),Rohm(羅姆電子)BA7755 SIP-5 封裝的 High-voltage Audio Head Selection Switch,Rohm(羅姆電子)BA7751A SIP-24 封裝的 Normal Audio Signal Processings,Sanyo(三洋電機)LA7016 SIP-8 封裝的 Electronic Switch for Use in VTR Application,Hitachi(日立)HD49719NT DIP-64 封裝,Mitsubishi(三菱電機)M54874P DIP-32 封裝,Hitachi(日立)HA13403VA SP-23TB 封裝的 Three Phase Brushless Motor Driver,3枚 Rohm(羅姆電子)BU4053B DIP-16 封裝的 Triple 2-channel analog multiplexer / demultiplexer,Rohm(羅姆電子)BA6303 DIP-16 封裝的FG System Speed Servo Controller,Sanyo(三洋電機)LA7935 DIP-22 封裝的 Tuner Decorder IC,JRC(日本無線株式會社)LM2903D DIP-8 封裝的 Low Power Dual Voltage Comparator,NEC(日本電氣)D4066BC DIP-14 封裝的 14-Stage Ripple-Carry Binary Counter/Divider and Oscillator,Hitachi(日立)HD614088S DIP-64 封裝的 4-Bit Single Chip Microcomputer,Rohm(羅姆電子)BA6209 SIP-10 封裝的 Reversible Motor Driver,Rohm(羅姆電子)BA6993 SIP-8 封裝的 Dual Comparator。

Rohm(羅姆電子)BA7755 SIP-5 封裝的 High-voltage Audio Head Selection Switch
Sanyo(三洋電機)LA7016 SIP-8 封裝的 Electonic Switch for Use in VTR Application
Sanyo(三洋電機)LA7016 SIP-8 封裝的 Electronic Switch for Use in VTR Application
Hitachi(日立)HD49719NT DIP-64 封裝 IC
Mitsubishi(三菱電機)M54874P DIP-32 封裝 IC
Hitachi(日立)HA13403VA SP-23TB 封裝的 Three Phase Brushless Motor Driver
3枚 Rohm(羅姆電子)BU4053B DIP-16 封裝的 Triple 2-channel analog multiplexer / demultiplexer
Rohm(羅姆電子)BA6303 DIP-16 封裝的 FG System Speed Servo Controller
Sanyo(三洋電機)LA7935 DIP-22 封裝的 Tuner Decorder IC
JRC(日本無線株式會社)LM2903D DIP-8 封裝的 Low Power Dual Voltage Comparator
NEC(日本電氣)D4066BC DIP-14 封裝的 14-Stage Ripple-Carry Binary Counter/Divider and Oscillator
Rohm(羅姆電子)BA6209 SIP-10 封裝的 Reversible Motor Driver
Rohm(羅姆電子)BA6993 SIP-8 封裝的 Dual Comparator
Hitachi(日立)HD614088S DIP-64 封裝的 4-Bit Single Chip Microcomputer
HT4603-9B09 SIP-9 封裝 Module
產品高頻訊號處理板主要零件(BOM):
Type
Brand
P/N
Packaging
IC401 - High-voltage Audio Head Selection Switch
Rohm
BA7755
SIP-5
IC402 - Normal Audio Signal Processings
Rohm
BA7751A
SIP-24
IC461 - Electonic Switch for Use in VTR Application
Sanyo
LA7016
SIP-8
IC601 - ?
Hitachi
HD49719NT
DIP-64
IC602 - ?
Mitsubishi
M54874P
DIP-32
IC603 - Three Phase Brushless Motor Driver
Hitachi
HA13403VA
SP-23TB
IC605 - Triple 2-channel analog multiplexer / demultiplexer
Rohm
BU4053B
DIP-16
IC606- Triple 2-channel analog multiplexer / demultiplexer
Rohm
BU4053B
DIP-16
IC607- Triple 2-channel analog multiplexer / demultiplexer
Rohm
BU4053B
DIP-16
IC608 - FG System Speed Servo Controller
Rohm
BA6303
DIP-16
IC801 - Tuner Decorder IC
Sanyo
LA7935
DIP-22
IC802 - Low Power Dual Voltage Comparator
JRC
LM2903D
DIP-8
IC803 - 14-Stage Ripple-Carry Binary Counter/Divider and Oscillator
NEC
D4066BC
DIP-14
IC901 - 4-Bit Single Chip Microcomputer
Hitachi
HD614088S
DIP-64
IC902 - Reversible Motor Driver
Rohm
BA6209
SIP-10
IC903 - Dual Comparator
Rohm
BA6993
DIP-8
IC951 - Module
?
HT4603-9B09
SIP-9

相關網址:
※ Hitachi VT-498EM VCR 錄影機拆解(一)
※ Hitachi VT-498EM VCR 錄影機機芯拆解(二)
※ Hitachi VT-498EM VCR 錄影機 VFD 顯示板拆解(三)
※ Hitachi VT-498EM VCR 錄影機電源供應器拆解(四)
※ Hitachi VT-498EM VCR 錄影機訊號處理板拆解(五)

2019年 11月 13日 天氣報告
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